Weil-McLain EVERGREEN PRO EVG-155 Evergreen High Efficiency User Manual

This manual must only be used by a qualiﬁ ed heating installer/service technician. Read all instructions, including this manual and

all other information shipped with the boiler, before installing. Perform steps in the order given. Failure to comply could result in

severe personal injury, death or substantial property damage.

Part number 550-100-214/1220

Advanced Manual

Multiple Boiler Installation & Settings + Single Boiler Advanced Settings

CONDENSING GAS BOILER

110/155

Evergreen

Control — Advanced mode . . . . . . . 3

Multiple boiler installations . . . . . . . . . . . . . 6

Fast-Track Setup — Requirements by Boiler . . . . 9

Fast-Track Setup — Steps . . . . . . . . . . . . . 10

Fast-Track Setup — The WIZARD . . . . . . . . . 11

Fast-Track Setup — Typical Application A . . . . 14

Fast-Track Setup — Typical Application B . . . . 18

Fast-Track Setup — Typical Application C . . . . 22

Field wiring (see wiring diagram, ) . . . . . . . . . . . 26

Wiring diagram — schematic . . . . . . . . . . . 34

Wiring diagram — ladder . . . . . . . . . . . . . 35

Zoning with the EVG Control . . . . . . . . . . . . 36

Control operation. . . . . . . . . . . . . . . . . . 41

Available control settings – Advance Mode . . . . 43

System Type presets . . . . . . . . . . . . . . . . 45

CONTRACTOR menus. . . . . . . . . . . . . . . . 46

BOILER SETTINGS menu . . . . . . . . . . . . . . 47

NETWORK SETTINGS menu. . . . . . . . . . . . . 48

ROTATION AND SEQUENCE . . . . . . . . . . . . . 49

Network Boiler PRIORITY menus . . . . . . . . . 52

Single Boiler PRIORITY menus . . . . . . . . . . . 54

ASSIGN INPUTS menu . . . . . . . . . . . . . . . 56

AUX PUMP/OUTPUT options . . . . . . . . . . . . 57

MAINTENANCE, DATE AND TIME menus . . . . . . 58

Follow all instructions for installation, start-

up and servicing in the Evergreen

boiler

manual.

Use this Advanced Manual for multiple

boiler installation guidelines and control set-

tings and for single boiler advanced control

settings.

HAZARD DEFINITIONS

The following deﬁ ned terms are used throughout this manual to

bring attention to the presence of hazards of various risk levels

or to important information concerning the life of the product.

Indicates presence of hazards that will cause

severe personal injury, death or substantial

property damage.

Indicates presence of hazards that can cause

severe personal injury, death or substantial

property damage.

Indicates presence of hazards that will or can

cause minor personal injury or property dam-

age.

Indicates special instructions on installation,

operation or maintenance that are important

but not related to personal injury or property

damage.

IMPORTANT

THE OUTDOOR SENS OR SUPPLIED WITH THE

BOILER MU ST BE INSTALLED UNLESS EXEMPT-

ED BELOW:

In accordance with

Section 303 of the 2007 Energy Act, this

boiler is equipped with a feature that saves energy by reducing

the boiler water temperature as the heating load decreases.

This feature is equipped with an override which is provided

primarily to permit the use of an external energy management

system that serves the same function.

THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST

ONE OF THE FOLLOWING CONDITIONS IS TRUE:

• An external energy management system is installed that reduces

the boiler water temperature as the heating load decreases.

• This boiler is not used for any space heating.

• This boiler is part of a modular or multiple boiler system hav-

ing a total input of 300,000 BTU/hr or greater.

• This boiler is equipped with a tankless coil (not applicable to

Evergreen

If the outdoor sensor is not used, the following

changes must be made to control settings dur-

ing control setup:

TARGET ADJUST (in priority menus) must be

set either to NONE (constant supply tempera-

ture) or 0–10VDC (remote target).

WWSD must be set to OFF.

Part number 550-100-214/1220

– 2 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Contents

Evergreen

Control — Advanced mode

Evergreen

control overview

Basic Boiler Features:

• Easy conﬁ guration with WIZARD step-by-step setup including

on-screen help.

• BASIC boiler settings mode for streamlined menu navigation of

essential settings.

• Three customizable input/output pairs—use as a 3-Zone control

or a 3-Priority control.

• Conﬁ gure outputs to control System Pumps or 120 VAC Auxiliary

equipment.

• System type presets simplify system temperature selection.

• 0-10VDC Input can modulate boiler ﬁ ring rate or target.

• Integral outdoor reset with warm weather shutdown.

Advanced Boiler Features:

• ADVANCED boiler settings mode unlocks all features and cus-

tomizable parameters.

• Manage multiple types of System Pumps or 120 VAC Auxiliary

accessories.

• Manage staged heating sources using the Additional Heat Demand

feature.

• BMS integration with standard MODBUS.

Evergreen

control setup

1. Set control parameters using the WIZARD option provided

on initial start-up or manually enter parameters using control

menus explained later in this manual.

2. See

Fast-Track setup

instructions beginning on page 9 for

example applications and minimum settings required (using

factory defaults).

3. This manual provides set-up information for a single-boiler

advanced settings and for all multiple boiler applications.

Boiler Model, Altitude and Fuel Type are critical settings.

Failure to set correctly could result in severe personal injury,

death or substantial property damage.

Temperature settings — You must ensure that the Evergreen

control is set for the proper water temperatures for the system.

Excessive water temperature can cause signiﬁ cant property

damage in some applications.

Multi-temperature systems — If the heating system in-

cludes circuits that require lower temperature water (radiant

slab circuits, for example) as well as higher temperature circuits

(DHW, ﬁ nned tube baseboard, etc.), it is recommended to protect

low-temperature circuits with limit controls that are wired to

an Evergreen

control external limit circuit. Failure to provide

regulation can result in substantial property damage.

Multiple Boiler (Network) Features:

(see next page for explanation of Priorities)

• Create a network of up to 8 boilers using built-in con-

trols.

• Master boiler controls the modulation and sequencing

of boilers on the network to achieve desired system

supply temperature.

• Use ALL boiler inputs, not just the ﬁ rst and last boilers,

up to 24 customizable inputs across boiler network (3

per unit, maximum of 8 boilers on network).

• Two (2) available Network Priorities allow multiple

system types/temperature zones.

• Direct-connected DHW tanks (or other heating zones)

can be piped and wired locally to any boiler in the sys-

tem, not just the ﬁ rst or the last.

• Three system modulation types—SERIES, PARALLEL,

AND SMART.

• Three (3) Lead boiler rotation modes (plus OFF).

• Limit the ﬁ ring rate for each Network Priority indepen-

dently when heat demands are mismatched using the

Max System Rate parameter.

• Fire multiple boilers at initial call for heat to start up

quickly for high demand applications using the Mini-

mum Boilers parameter.

• Won’t interrupt a Local heat demand (such as direct-

connected DHW tank) to satisfy Network heat demand

unless all available boilers are at maximum input.

• Simple, 2-wire boiler-to-boiler communication con-

nection.

Evergreen

control operation

• The control responds to signals from:

• Room thermostats

• DHW aquastats (if used)

• Temperature sensors — boiler return, boiler supply,

ﬂ ue temperature and, when used, system supply and

system return, outdoor temperature.

For optimal

performance, it is recommended to install the

system supply and return sensors.

• The control automatically adjusts blower speed (and gas

ﬂ ow rate) to match boiler output to space heating and/

or DHW heating demand.

• The control provides three inputs and three outputs (for

circulators or auxiliary devices) plus a boiler circulator

output.

• Outdoor reset must be used in all applications that are

not exempt as described on page 2 .

• The outdoor temperature is used for supply tem-

perature reset operation and for the warm weather

shutdown (WWSD) option.

• See “Outdoor reset operation” on page 4 for com-

plete explanation of outdoor reset settings.

• System presets

• The Evergreen

control provides presets by system

type (see Figure 21, page 45 for complete list).

Part number 550-100-214/1220

– 3 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Evergreen

Control — ADVANCED mode (continued)

Part number 550-100-214/1220

– 4 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

EVG contr ol Priorities & Input/Outputs

• For heating installations with multiple systems, the EVG

control uses PRIORITIES to determine the order of opera-

tion of the systems.

• The control’s MAX and MIN time settings determine the

maximum and minimum times a system will be oper-

ated before being turned off to allow another system to

operate.

• A typical example is DHW priority — heat demand from

the DHW system is given preference over space heating

if assigned to Priority 1.

• Each PRIORITY has its own set of operating parameters.

• The control prompts the user to select the system type

(ﬁ nned tube baseboard, DHW, etc.) and is factory pro-

grammed with parameters suited to each of these system

types.

• The user can also choose CUSTOM to create a system

type.

• The EVG control provides up to three

PRIORITIES for single

boiler applications and up to four priorities for network boiler

applications. The order of operation is:

• Single boilers: PRIORITY 1, PRIORITY 2, PRIORITY 3.

• Network boilers: LOCAL PRIORITY 1, NETWORK

PRIORITY 1, NETWORK PRIORITY 2, LOCAL PRI-

ORITY 2.

• For each boiler in a network, this provides up to two

LOCAL priorities, used for heating systems piped directly

to the boiler, such as DHW tanks.

• NETWORK priorities are used for heating systems con-

nected in the primary heating loop and supplied by the

boiler network.

• Each boiler has three

INPUT/OUTPUT pairs (INPUT/OUT-

PUT 1, 2 and 3).

• Control setup prompts the user to assign each of these I/O

pairs to a PRIORITY. The EVG control then knows which

system (priority) to operate when any input assigned to

that priority receives a call for heat.

• The EVG controls respond to heat calls based on the

order of the assigned priorities and the timings set for

each priority’s operation.

Boiler circulator

• The boiler circulator is shipped loose with the boiler for ﬁ eld

installation.

• The 120 VAC power output to the boiler circulator is provided

by a terminal block located on the boiler’s left cabinet wall.

For each of the priorities, the control can be setup to run the

boiler pump or to leave it off. It is recommended to set Boiler

Circulator to OFF for directly piped DHW systems with its

own circulator.

The boiler circulator must be installed and con-

nected. Flow through the boiler must be provided

during all times of operation. Failure to do so can

result in severe personal injury, death or substantial

property damage.

Multiple boiler operation

• The Evergreen

boiler has an auto detection feature for

multiple boiler networks. The Master will automatically

detect the presence of the other boilers wired to the network.

• There will be a 30 second to 1 minute period until the Master

may see the shadow boilers.

• Each shadow boiler must be assigned a network address,

from 2 through 8. The address for each boiler must be

unique, NOT selected for any other boiler.

• Afterwards, the Master will build a network based on the

communications shared. If a boiler loses communication,

the Master will automatically re-assign the lost boiler to

where it was before once it is back on the network.

• When network inputs turn on, the Master boiler will enter

the Network Modulation routine.

• Using system sensors, the Master will modulate the entire

network to meet the energy requirements of Network Prior-

ity 1 and Network Priority 2 inputs when they are on.

• When a Local Priority input becomes active (switch closes),

modulation for that input is not controlled by the Master,

but instead is left to that local boiler using its own local Heat

Exchanger Inlet and Outlet sensors.

• Each of the three (3) inputs on the Master or any of the

Shadow boilers can be assigned as Network Priority 1 or 2

or assigned as Local Priority 1 or 2. Network Priority settings

are common across all the boilers. These Network Priority

settings can only be adjusted from the Master boiler.

Sequence of operation

• Figure 19, page 42 is a summary of the operating sequence

for the Evergreen

control.

• The statuses shown appear in the display as the

Evergreen

control cycles the boiler.

• The display will display red (solid or ﬂ ashing) if a prob-

lem has been detected.

Outdoor reset oper ation

1. Calculates target temperature for space heating zones based

on outdoor temperature.

2. For an explanation of the target temperatures and associated

outdoor temperatures, see Figure 1, page 5 .

3. The temperature settings discussed below are accessed in

the priority menu for the applicable system. For detailed

explanations of the priority menus, see Figure 28, page 52 .

SUPPLY MAX

1. Set SUPPLY MAX to the required supply water temperature

for the system at design maximum heat loss (typically 180°F

for ﬁ nned tube baseboard on new installations).

SUPPLY MIN

1. SUPPLY MIN should equal the desired minimum supply

water temperature for the system.

2. This could be set as low as 70°F, which would supply “zero

heat” when outdoor temperature is 70°F, because supply

water temp would equal room temp.

3. See examples in Figure 1 .

Evergreen

Control — ADVANCED mode (continued)

Part number 550-100-214/1220

– 5 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Figure 1 Outdoor reset operation

Figure 2 Remote target operation

OD RESET MAX

1. OD RESET MAX means the outdoor temperature at which the

target temperature reaches its minimum (SUPPLY MIN).

2. In the examples of Figure 1 , this occurs at 70 °F (the factory

default).

OD RESET MIN

1. OD RESET MIN means the outdoor temperature at which the

target temperature reaches its maximum value (SUPPLY MAX).

2. In the examples of Figure 1 , this occurs at 0°F outside (the factory

default setting).

3. OD RESET MIN should equal the ODT (outdoor design tem-

perature) for the installation’s location.

Remote target operation (0–10VDC input)

1. This function allows a remote analog input to regulate the sup-

ply temperature for control operation/modulation. This can be

done for any priority, including network and local priorities for

multiple boiler networks.

2. The settings discussed below are accessed in the priority menu

for the applicable system. For detailed explanations of the priority

menus, see Figure 28, page 52 .

3. See Figure 2 for an explanation of target temperature vs voltage

when using remote target operation.

4. In the priority menu for the applicable system, select 0-10V for

the TARGET ADJUST setting.

5. In the same priority menu, select the VOLTS FOR MIN and VOLTS

FOR MAX values. VOLTS FOR MIN sets the voltage value for the

desired minimum supply temperature. VOLTS FOR MAX sets

the voltage value for the desired maximum supply temperature.

Remote modulation operation

(0–10VDC input) — Single boilers only

Using an external multiple boiler controller — Remote

modulation using an external controller only works

with each boiler set up as a SINGLE boiler in the EVG

Control setup.

1. Use this option for single boilers only. To use 0–10VDC for re-

mote modulation, go to Contractor Menu -> Assign Inputs. Then

change Input 1’s source to 0–10V. The priority that is assigned to

Input 1 cannot not be used by any other Input.

2. The boiler comes on at 0.9VDC and turns off at 0.8VDC. 2 VDC

= 20% input. 10 VDC = 100% input. These voltage settings are

not adjustable.

Part number 550-100-214/1220

– 6 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Placing multiple boilers

1. Locate multiple boilers with spacings shown in Figure 3 .

Provide the indicated clearances around boilers for access

and servicing.

If recommended dimensions are not possible,

provide at least the minimum clearances given

in the Evergreen

boiler manual. Also follow

local codes.

2. If boilers are ﬂ oor-mounted, construct a boiler foundation

if boiler room ﬂ oor is uneven or if there is a danger of

ﬂ ooding. Size the foundation to allow for clearance and

spacing dimensions shown in Figure 3 .

3. Provide a minimum 30-inch walkway in front of the boil-

ers to ensure accessibility.

4. Uncrate, assemble and mount boilers according to instruc-

tions in the Evergreen

boiler manual.

5. Provide clearances needed for installation of venting, air

piping, gas piping, expansion tank, primary circulator

and other accessories. Clearances must comply with all

applicable codes.

Manifolded combustion air option

1. Multiple Evergreen

boilers can use a common combus-

tion air manifold.

a. Provide minimum clearance to adjacent vents and

grade/snow line as shown in Figure 4 .

b. Provide minimum free area in duct (adjusted for

louver restriction) of

1 square inch per 2,000 Btuh

total boiler input. See below. Also see information in

Boiler Ratings section of boiler manual.

c. If combustion air damper is used, wire to boilers to

prevent operation, except after damper has opened.

ONLY air piping can be combined. DO NOT

use combined vent piping. Flue gas leakage and

boiler component damage can occur. Failure to

comply could result in severe personal injury,

death or substantial property damage.

2. Calculate required cross sectional area of combined com-

bustion air duct (for area in square inches):

MINIMUM DUCT AREA

= TOTAL MBH INPUT DIVIDED BY 2

3. Example: A multiple boiler system with six (6) EVG 155

boilers has a total input of 6 x 155 = 930 MBH (930,000

Btuh). The required duct cross sectional area would be:

MINIMUM DUCT AREA

= 930 DIVIDED BY 2

= 465 sq. inches

Figure 3 Side-to-side mounting of multiple Evergreen

boilers

Figure 4 Manifolded combustion air option

Multiple boiler installations

Part number 550-100-214/1220

– 7 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Maximum connected load per manifold:

2-inch manifold — 450 MBH

3-inch manifold — 1400 MBH

4-inch manifold — 2900 MBH

Figure 5 Single-sided EZ-Fit Header connection

Figure 6 Double-sided EZ-Fit Header connection

Multiple boiler installations

(continued)

Easy-Fit

piping installation

1. Main header and Easy-Fit® Manifold pipe sizing.

a. Size system piping as required for the ﬂ ow.

b. Install tees on the system piping for Easy-Fit® manifolds

as shown in Figure 5 or Figure 6 . Size manifolds to handle

total connected boiler output as shown.

2. Provide connections in main header for Easy-Fit® manifolds

as close as possible to the midpoint of multiple boilers.

a. Use tees for four or less boilers, as in Figure 5 .

b. Use either tees ( Figure 5 ) or crosses ( Figure 6 ) for ﬁ ve

or more boilers.

3. Manifold placement:

a. To alternate spacing for supply and return lines to boilers,

reverse the short-end and long-end of the manifolds as

shown in Figure 5 and Figure 6 .

b. Return manifold must be on the return side of the main

and supply manifold must be on the supply side of the

main. Drawings in this manual show ﬂ ow in system main

from right to left. For system ﬂ owing left to right, reverse

the locations of the manifolds accordingly.

4. Connect from Easy-Fit® manifold branches to boiler supply

and return connections using copper or steel pipe, sized for

the required ﬂ ow rate.

It is recommended to pipe to boilers such

that the ﬁ rst boiler connection off the return

manifold is piped to the furthest connection

on the supply manifold from the main header.

See Figure 8, page 14 and Figure 10, page 18 for

example.

5. Install an isolation valve on the supply and return of each

boiler as shown in the piping diagrams in this manual. Some

local codes may require the use of individual water level

controls and limits on each boiler because isolation valves

are installed.

6. Install main system air eliminator and primary circulator in

supply piping as shown in piping diagrams. Place expansion

tank on suction side of system circulator as shown.

7. Install system accessories as shown in drawings.

8. Piping recommendation drawings:

a. Figure 5 and Figure 6 show details of Easy-Fit® manifolds.

b. Figure 7, page 8 is a schematic piping drawing showing

the locations of typical boiler piping and system piping,

including limits and other devices often required by lo-

cal codes.

c. Figure 8, page 14 and Figure 10, page 18 are three di-

mensional piping drawings of typical multiple boiler

installation.

d. Figure 12, page 22 shows recommend piping when an

isolating heat exchanger is needed.

If desired, other primary/secondary piping arrangements

can be used.

Part number 550-100-214/1220

– 8 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Legend — Figure 7

1 Flow/check or spring check valve.

2 Isolation valves.

3 Cap.

4 Easy-Fit® Manifold (supply) — layout and size per page 7 .

5 Easy-Fit® Manifold (return) — layout and size per page 7 .

6 Primary circulator.

7 Expansion tank (diaphragm type).

8 System air eliminator.

9 System automatic air vent.

10 Pressure reducing valve.

11 Check valve or backﬂ ow preventer, as required by applicable codes.

12 Cold water supply.

13 Supply water temperature control (when used).

14 Low water cutoff (when used) (place above primary header).

15 Water ﬂ ow switch (when used) — locate a ﬂ ow switch in each

boiler loop if individual protection is required.

16 Boiler circulator.

17 System supply.

18 System return.

19 Boiler P/T gauge, relief valve and discharge piping, installed per

Evergreen

boiler manual.

20 Strap system supply and return sensors to lines as shown, at least 6

pipe diameters (but no more than 3 feet) from boiler connection

tees.

21 Boiler drain valves.

Figure 7 Piping schematic — typical piping for multiple Evergreen

boilers, using Weil-McLain Easy-Fit manifolds

(adjust boiler connections as required for other boiler models)

Multiple boiler installations

(continued)

Fast-Track Setup — Requirements by Boiler

Part number 550-100-214/1220

– 9 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup

Evergreen

control Fast-Track Setup takes advantage of the

control WIZARD to provide the shortest possible method to set

up the control.

Perform the

Fast-Track Setup steps on page 10 to ensure the

minimum adjustments needed for ADVANCED mode control

operation are completed.

The remainder of this manual provides detailed information

about control setup and operation available for ﬁ ne tuning,

troubleshooting and custom setup applications.

Temperature settings — You must ensure

that the Evergreen® control is set for the

proper water temperatures for the system.

Excessive water temperature can cause signiﬁ -

cant property damage in some applications.

Multi-temperature systems — If the

heating system includes circuits that require

lower temperature water (radiant slab circuits,

for example) as well as higher temperature

circuits (DHW, ﬁ nned tube baseboard, etc.),

it is recommended to protect low-temperature

circuits with limit controls that are wired to

an Evergreen® control external limit circuit.

Failure to provide regulation can result in

substantial property damage.

Setup for single boilers

For single boilers not operated as part of an network, follow the

single-boiler setup procedures in the Evergreen® boiler manual.

Using an external multiple boiler controller —

Remote modulation using an external controller

only works with each boiler set up as a SINGLE

boiler in the EVG Control setup. Follow instruc-

tions in this manual to setup the control using

ADVANCED mode.

Multiple boiler networks

Multiple boiler networks are conﬁ gured with a MASTER boiler

and one or more SHADOW boilers. (See above for applications

using external controller.)

• The

MASTER boiler control regulates the ﬁ ring of all boilers

when providing heat to the system zones.

•

SHADOW boilers respond to heat demand from the master

control except when operating for local (direct-connected)

heat calls.

Priorities

The Evergreen® control allows assigning multiple priorities.

These priorities will be given preference in the order below:

• Multiple boilers: LOCAL PRIORITY 1, NETWORK PRIOR-

ITY 1, NETWORK PRIORITY 2, LOCAL PRIORITY 2.

• Single boilers: PRIORITY 1, PRIORITY 2, PRIORITY 3.

DHW circuit in system — For high-demand

DHW circuits, the control setting for MIN

BOILERS must be set using the NETWORK 1

or NETWORK 2 priority menu after the WIZ-

ARD is completed to ensure quick response to

demand. See page 53 for a description of the

MIN BOILERS setting.

Timings

Timing settings regulate boiler sequencing and ensure mini-

mum and maximum operating times for heating calls on each

system. Timings can be adjusted during the Wizard setup or

manually, as explained elsewhere in this manual.

Also see page 49 for additional information on control timings

and rotation and sequencing methods.

NET MIN ON TIME (multiple boilers only)

• This parameter is available during the Wizard or manually

in the NETWORK SETTINGS menu ( Figure 24, page 48 ).

• When a boiler is being called on by the master boiler to

satisfy a

network demand, the boiler will ﬁ re for at least

as long as the MIN TIME ON NET before it switches to

satisfy a Local Priority if one is active.

• This timing avoids short cycling due to changes in de-

mand.

MIN ON TIME

• This parameter is available during the Wizard or manually

in the PRIORITY SETTINGS menu ( Figure 29, page 54 ).

• When the boiler is being called on to satisfy a higher prior-

ity, the boiler will ﬁ re for at least as long as the MIN ON

TIME before it switches to satisfy that priority.

• This timing avoids short cycling due to changes in de-

mand.

NET MAX ON TIME (multiple boilers only)

• This parameter is available during the Wizard or manually

in the NETWORK SETTINGS menu ( Figure 24, page 48 ).

• When a boiler is being called on by the master boiler to

satisfy a

network demand, the boiler will ﬁ re for no longer

than the MAX TIME ON NET before it switches to satisfy

a Local Priority if one is active.

• This timing avoids a long-duration call from preventing

other demands from being met for too long a duration.

MAX ON TIME

• This parameter is available during the Wizard or manually

in the PRIORITY SETTINGS menu ( Figure 29, page 54 ).

• When a boiler is being called on by to satisfy a lower pri-

ority, the boiler will ﬁ re for no longer than the MAX ON

TIME before it switches to satisfy that priority.

• This timing avoids a long-duration call from preventing

other demands from being met for too long a duration.

Fast-Track Setup — Steps

The WIZARD must be used when using the Fast-Track Setup procedure. This is necessary to ensure that all required settings

are made. In addition, all instructions in the

Evergreen® boiler manual must be followed completely. Failure to comply could

result in severe personal injury, death or substantial property damage.

Step 1

Mechanical

• Install boiler(s) per Evergreen

boiler manual and all

applicable codes, including vent/air piping and water

piping.

• See suggested piping in this manual and boiler manual.

Each boiler must be connected with primary/secondary

piping and supplied with a boiler circulator.

• As shown in the suggested piping examples, DHW tanks

can be either piped directly off of individual boilers or as a

separate zone in the heating system.

• See page 6 for additional information on multiple boiler

installation options.

Step 2

Electrical

For details, see FIELD WIRING information beginning on

page 26 .

BOILER POWER SUPPLY

• Connect minimum 120 VAC power to boiler as directed on

the boiler wiring diagram (on boiler and on page 34 ).

INPUTS & OUTPUTS

• Each boiler provides three input/output pairs. Input circuits

are 24 VAC. DO NOT apply voltage. Use dry contacts only.

Outputs are 120 VAC, 2.2-amps max (use relays if loads

exceed 2.2 amps or if outputs must be 24 VAC or must be

isolated contacts).

• The input/outputs can be used with zone thermostats and

zone circulators or zone valves (requires isolation relays

unless valves are 120 VAC), providing up to three zones per

boiler on a multiple system.

• Each boiler also provides a 120 VAC output for its boiler

circulator. Use a relay if circulator requires for than 2.0 amps.

• If required, the AUX/PUMP OUTPUT feature can turn any

of the input/outputs into a customizable output with many

operation types. This should be used for system pumps

which operate independently from a heat demand or when

multiple inputs should activate a common output. Setup

can be done through the WIZARD or manually in ASSIGN

INPUTS menu.

SENSORS

• Connect an outdoor sensor, system supply sensor and

system return sensor to at least one of the boilers in a

multiple boiler system..

• Preferably, connect outdoor, system supply and system return

sensors to more than one boiler to provide redundancy. If

one of the sensors fails, the master boiler Evergreen

control

automatically looks for an available sensor.

MULTIPLE BOILER COMM CABLES

• For multiple boilers, connect boiler-to-boiler communication

cables as directed on page 33 .

ADDITIONAL INFORMATION

• For ﬂ ow switch or CAD interlock wiring, see page 33 .

• For external limit connections, see page 30 .

• For low water cut-off connections, see page 30 .

• For 0–10VDC inputs, see page 31 .

ZONING METHODS

• See wiring and control setup information for typical zoning

applications beginning on page 36 .

• See example systems beginning on page 14 .

Step 3

POWER ON

Follow all instructions in the Evergreen®

boiler manual, including all pre-start-up

inspections and ﬁ nal checks.

• Turn OFF the manual gas cock at the boiler to prevent gas

ﬂ ow during setup.

• Turn the boiler ON/OFF switch to ON.

• Follow the prompts on the screen to reach the BOILER

SETTINGS initial start-up screen.

• See Figure 17, page 40 for navigation information. Note that

the screen sequence changes after initial setup, as shown.

Step 4

WIZARD

• Select the START WIZARD option from the

initial screen BOILER SETTINGS menu (see

Figure 17, page 40 ).

• Use on-screen help as needed. For additional information,

see details in this manual.

• DO NOT select SKIP WIZARD unless the control is

to be conﬁ gured manually.

SINGLE BOILERS — Set up the control

following instructions in the Evergreen

boiler manual. If ADVANCED settings

are required, change to ADVANCED

mode from the CONTRACTOR menu.

See ADVANCED mode setup information

elsewhere in this manual.

Step 5

Finish setup

• Some additional control settings may need to be changed,

depending on the application.

• See explanation of Evergreen

control operation and

settings, beginning on page 41 .

• For high-demand loads requiring fast

response, such as network DHW, access the

NETWORK PRIORITY screen for the assigned priority (see

Figure 28, page 52 ). Change the MIN BOILERS to the

number of boilers needed for peak load.

Step 6

Start-up

• Apply the Evergreen

boiler manual instructions to verify

the installation and to start up the boiler, using combustion

test instruments as directed.

Part number 550-100-214/1220

– 10 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — The WIZARD

B O I L E R S E T T I N G S

H I G H

A L T I T U D E :

N O

WW S D T E M P : # # # º F

F U E L T Y P E :

N A T U R A L G A S

L I Q U I D P R O P A N E

S T A R T W I Z A R D

S K I P W I Z A R D

F O R D E T A I L S O N A N Y

S E L E C T E D L I N E , P R E S S

T H E

B U T T O N .

H E L P

S E L E C T E D I T

• This screen appears on initial start-up.

• Perform the

WIZARD steps for every boiler.

•

HIGH ALTITUDE and FUEL TYPE are critical

parameters. They must be entered correctly for

each boiler before proceeding.

• Enter the

WWSD temperature — This sets the

outside temperature below which space heat-

ing systems will be disabled.

WWSD must also

be selected during system setup to enable it.

• Select

START WIZARD.

•

DO NOT select SKIP WIZARD. Selecting SKIP

WIZARD will take the screen to the USER

MENU. All setup would then have to be done

manually.

•

NOTICE — Once SKIP WIZARD has been

selected, the WIZARD will no longer be

available unless the control is set to FACTORY

DEFAULT and control start-up is begun again.

E V E R G R E E N W I Z A R D

# # O F # #

W H A T I S T H E U S E O F

I N P U T / O U T P U T - # ?

H E A T / D H W D E M A N D

A U X / P U M P O U T P U T

N O T U S E D

N O T E :

1 2 0 V O U T P U T S H A V E A

2 . 2 A M P L I M I T . I F M O R E

C U R R E N T I S R E Q U I R E D ,

U S E A N E X T E R N A L

C O N T A C T .

B A C K S E L E C T N E X T

• Each boiler provides three input/output pairs.

Each pair can be setup to function as a call for

heat with output or to perform an auxiliary

function, such as operating a system pump.

• After the WIZARD screens are completed for

INPUT 1, the WIZARD starts over with INPUT/

OUTPUT 2, then to INPUT/OUTPUT 3 after 2

is completed.

• Select

HEAT/DHW DEMAND if the input/out-

put is connected to a heating or DHW zone or

system. The input could be a zone thermostat

or end switch. The output could be 120 VAC to

a circulator (2.0 amps or less) or isolation relay.

• Select

AUX PUMP/ OUTPUT if the input is to

be used for a system pump, combustion air

damper interlock, etc.

• To operate a

system pump, setup the input

AUX PUMP/OUTPUT. Connect the cor-

responding output to the system pump or

pump relay (if pump load exceeds 2.0 amps).

When the

ACTIVATE OUTPUT # screen ap-

pears, select

ANY INPUT BY ITS PRIORITY

SETTINGS as the operating mode.

• Select

NOT USED if the input/output is not

needed.

E V E R G R E E N W I Z A R D

# # O F # #

W H A T P R I O R I T Y I S

I N P U T / O U T P U T - # ?

P R I O R I T Y 1 - L O C A L 1

P R I O R I T Y 2 - N E T W O R K 1

P R I O R I T Y 3 - N E T W O R K 2

P R I O R I T Y 4 - L O C A L 2

H E L P

B A C K S E L E C T N E X T

• For multiple boiler applications, the Evergreen

control provides up to four priorities, as listed

on this screen. Preference is given to these

priorities in the order shown (Priority 1

through 4).

• Select which priority will be operated by this

input/output.

• All boilers can operate on demand from

Net-

work priorities.

• NETWORK PRIORITIES

– Any input on any boiler can be assigned to a

network priority (NETWORK PRIORITY 1

or NETWORK PRIORITY 2).

– The WIZARD will only allow setting up a

Network Priority on the Master boiler. It

will skip setting up a Network Priority on

all shadow boilers.

– All boilers on the network will ﬁ re to meet net-

work demands

• LOCAL PRIORITIES

– Any boiler can use its input/outputs to

operate up to two local priorities (LOCAL

PRIORITY 1 and LOCAL PRIORITY 2).

This applies only for heating loops directly

piped to the boiler.

– Local demands are only satisfied by the

boiler to which the input is wired. Local

heating loops must be directly piped to

the boiler.

E V E R G R E E N W I Z A R D

# # O F # #

W H A T S Y S T E M T Y P E I S

P I P E D T O O U T P U T - # ?

F A N C O I L

F I N N E D T U B E B A S E B O A R D

C A S T I R O N B A S E B O A R D

C A S T I R O N R A D I A T O R

R A D I A N T - S L A B O N G R A D E

R A D I A N T - T H I N S L A B

R A D I A N T - B E L O W F L O O R

R A D I A N T - A B O V E F L O O R

D H W

C U S T O M - # # # # # # # #

H E L P

B A C K S E L E C T N E X T

• Use this screen to select the system type for

this priority.

• The control will automatically set operating

parameters to suit the system type chosen.

• To see factory default settings for each system,

see Figure 21, page 45 .

• Operating parameters can be customized in

the next screen, if desired.

• Select

CUSTOM to manually conﬁ gure the

operating settings for the system.

•

NETWORK PRIORITY 1 or 2 — This screen

will not show on a shadow boiler if the input/

output is assigned to a network priority. The

screen will only appear on the Master boiler,

where the priority must be conﬁ gured.

• The WIZARD is available only on initial setup of the boiler.

It cannot be accessed later. If the WIZARD is accidentally

by-passed, follow navigation sequences shown on page 46

and page 47 . Select RESET FACTORY DEFAULTS on the

Boiler Settings menu. Follow screen directions. Boiler setup

must then be started over from the beginning.

• The WIZARD leads

through a step-by-step

setup procedure designed

for the application chosen.

• Context-sensitive help

is available to explain

the purpose of key setup

items.

Part number 550-100-214/1220

– 11 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — The WIZARD (continued)

If TARGET ADJUST = ODT

E V E R G R E E N W I Z A R D

# # O F # #

S Y S T E M T Y P E : # # # # # # # #

T A R G E T M O D S E N S O R :

B O I L E R O U T

T A R G E T A

J U S T :

S U P P

L Y M A X : # # # °

S U P P L Y M I N : # # # ° F

O D R E S E T M A X : # # # ° F

O D R E S E T M I N : # # # ° F

B O O S T T I M E : # # # M I N

R U N B O I L E R P U M P ? Y E S

R U N A U X / P U M P O U T ? Y E S

M A X O N T I M E : # # M I N

H E L P

B A C K S E L E C T N E X T

If TARGET ADJUST = 0–10V

E V E R G R E E N W I Z A R D

# # O F # #

S Y S T E M T Y P E : # # # # # # # #

T A R G E T M O D S E N S O R :

B O I L E R O U T

T A R G E T A

J U S T :

S U P P

L Y M A X : # # # °

S U P P L Y M I N : # # # ° F

V O L T S F O R M A X : # # # ° V

V O L T S F O R M I N : # # # ° V

B O O S T T I M E : # # # M I N

R U N B O I L E R P U M P ? Y E S

R U N A U X / P U M P O U T ? Y E S

M A X O N T I M E : # # M I N

H E L P

B A C K S E L E C T N E X T

If TARGET ADJUST = NONE

E V E R G R E E N W I Z A R D

# # O F # #

S Y S T E M T Y P E : # # # # # # # #

T A R G E T M O D S E N S O R :

B O I L E R O U T

T A R G E T A D J U S T : N O N E

S U P P L Y M A X : # # # ° F

R U N B O I L E R P U M P ? Y E S

R U N A U X / P U M P O U T ? Y E S

M A X O N T I M E : # # M I N

H E L P

B A C K S E L E C T N E X T

V E R G R E E N W I Z A R D

# # O F # #

A C T I V A T E O U T P U T - # :

- A L W A Y S O N

- E X T

R N A L S W I T C H

- O U T D O O R B E L O W W W S D

- A N Y I N P U T

- A N Y I N P U T B Y I T S

P R I O R I T Y S E T T I N G S

- A N Y B U R N E R D E M A N D

H E L P

B A C K S E L E C T N E X T

• Use this screen to set when a SYSTEM

PUMP/AUX output is activated. For detailed

explanation, see Figure 31, page 57 and Fig-

ure 32, page 57 .

•

SYSTEM TYPE – Read only (assigned in

previous step).

•

TARGET MOD SENSOR – Read only for

network boilers, adjustable for single boil-

ers – Shows which sensor reading is used for

modulation. Boiler sensor is default for local

priorities. System sensor is default for network

priorities.

•

TARGET ADJUST – Select how target tem-

perature is calculated —

NONE (no reset, ﬁ xed target temperature =

SUPPLY MAX)

ODT (outdoor reset operation; default setting).

Target temperature is calculated from the

outdoor reset curve. SUPPLY MAX is target

temperature when outside temperature equals

OD RESET MAX. SUPPLY MIN is target

temperature when outside temperature equals

OD RESET MIN. At outdoor temperatures in

between, target temperature is scaled propor-

tionally. See Figure 1, page 5 for details.

0–10V (target temperature based on input

from remote source). SUPPLY MAX is target

temperature at VOLTS FOR MAX value. SUP-

PLY MIN is target temperature at VOLTS FOR

MIN value. For voltage values between max

and min, target temperature is scaled propor-

tionally. See Figure 2, page 5 for details.

•

SUPPLY MAX – Set SUPPLY MAX to the

required supply water temperature for the

system at design maximum heat loss (typi-

cally 180°F for ﬁ nned tube baseboard on new

installations.)

•

SUPPLY MIN – SUPPLY MIN should equal the

desired minimum supply water temperature

for the system. This line will not show if Target

Adjust is selected as NONE.

•

OD RESET MAX – means the outdoor temper-

ature at which the target temperature reaches

its minimum (SUPPLY MIN). (Does not ap-

pear if 0–10V is selected for Target Adjust.)

•

OD RESET MIN – means the outdoor tempera-

ture at which the target temperature reaches its

maximum value (SUPPLY MAX). (Does not

appear if 0–10V is selected for Target Adjust.)

•

VOLTS FOR MAX – Appears if 0–10V is

selected for Target Adjust. Set the voltage at

which SUPPLY MAX temperature is required.

•

VOLTS FOR MIN – Appears if 0–10V is selected

for TARGET ADJUST. Set the voltage at which

SUPPLY MIN temperature is required. For

voltages between Min and Max, the target

temperature will be adjusted on a linear curve.

•

BOOST TIME – Every time the call for heat

surpasses this duration of time the target

temp will boost up 10°F. It will cap off at

Supply Max.

•

RUN BOILER PUMP – Selects whether the

Boiler Pump is turned on while running on

this call for heat. This setting is YES for net-

work priorities and is not adjustable.

•

RUN AUX PUMP/ OUT – Selects whether In-

puts/Outputs in the system conﬁ gured as AUX

PUMP/OUTPUT are turned on while running

on this call for heat.

•

MAX ON TIME / MIN ON TIME – Maximum or

minimum time the network will run on this

priority if it is being asked to run on another

network priority. MAX shows for Network

Priority 1, MIN shows for Network Priority 2.

This line ONLY shows on the Master boiler

Wizard. It does not appear on Shadow boilers.

Part number 550-100-214/1220

– 12 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — The WIZARD (continued)

E V E R G R E E N W I Z A R D

# # O F # #

L O C A L

▼

N E T W O R K

S W I T C H I N G T I M E S

L P 1 M A X O N T I M E : # # # M

▼

N E T M I N O N T I M E : # # # M

N E T M A X O N T I M E : # # # M

▼

L P 2 M I N O N T I M E : # # # M

N E X T S T E P H E L P

B A C K S E L E C T E D I T

• The timings set on this screen prevent the boiler

from operating too long on one demand if

another demand is present. They also prevent

short cycling on a demand.

• LP1 and LP2 are times for local priorities.

• MIN NET ON TIME and MAX NET ON TIME

are the maximum and minimum times this

boiler will dedicate to a call from a network

demand.

E V E R G R E E N W I Z A R D

# # O F # #

B O I L E R S E Q U E N C I N G

S E Q U E N C E T Y P E :

S M A R T

B A S E R A T E H I G H : # # # %

B A S E R A T E L O W : # # # %

L E A D B O I L E R R O T A T E :

I N C R E M E N T A L H O U R S

R O T A T E F R E Q : # # D A Y S

F O R C E L E A D R O T A T E : Y E S

N E X T S T E P

H E L P

B A C K S E L E C T N E X T

• Use this screen to set how boilers are sequenced

and how usage is rotated between boilers on

the network.

• For a complete explanation of sequencing and

rotation, see page 49 and page 50 .

• Sequencing means the way in which boiler

ﬁ ring rate is controlled as boilers are turned on

and off by the master boiler.

– Three SEQUENCE TYPES are available:

SERIES sequencing allows each boiler to

reach full input before bringing on the next

boiler in sequence. PARALLEL sequencing

uses a limiter, called BASERATE HIGH, to

limit the ﬁ ring rate before adding additional

boilers. SMART sequencing (factory default

setting) uses a low ﬁ ring rate setting, called

BASERATE LOW, to keep boilers at a low

ﬁ ring rate, bringing on additional boilers at

reduced rate until all boilers are on if neces-

sary. Boilers are then allowed to modulate to-

gether as high as necessary to meet demand.

• Rotation means how and how often the boiler

ﬁ ring order is changed.

– LEAD BOILER ROTATE options are

based on how long a boiler has operated. Se-

lect either OFF, BY BOILER ID, TOTAL

HOURS or INCREMENTAL HOURS.

See detailed explanation of options on

page 49 .

– Use the ROTATE FREQ setting to control

how often the rotation sequence is changed.

– FORCE LEAD ROTATE – If set to YES,

then when the frequency timer expires and

the new order is calculated, this forces the

new boiler order to take effect while a heat

demand is currently active.

E V E R G R E E N W I Z A R D

# # O F # #

S E T D A T E & T I M E

T I M E : H H : M M A M

D A T E : M M / D D / Y Y

B A C K S E L E C T N E X T

• This screen appears ONLY on the master boiler,

not on shadow boilers.

• Set the time and date to ensure that control

logs accurately record time/date of occurrences.

• Time and date information is provided to the

shadow boilers by the master boiler.

E V E R G R E E N W I Z A R D

# # O F # #

M A I N T E N A N C E I N F O

N A M E : # # # # # # # # # # # # # # # #

P H O N E : # # # - # # # - # # # #

M O D E L : # # # # # # # # # # - # #

C P # : # # # # # # # # # #

I N S T A L L E D : D D / M M / Y Y

L A S T D A T E : D D / M M / Y Y

N E X T D A T E : D D / M M / Y Y

I N T E R V A L S E T : 1 2 M O N T H S

W I Z A R D C O M P L E T E

H E L P

B A C K S E L E C T N E X T

• Use this screen to enter relevant data about the

installer and boiler.

• See Figure 33, page 58 for full explanation of

the inputs on this menu.

Part number 550-100-214/1220

– 13 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Part number 550-100-214/1220

– 14 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Blr 1

Blr 2

Fast-Track Setup — Typical Application A

Figure 8 Typical Application A — Piping layout — typical piping for multiple Evergreen

boilers, using Weil-McLain

Easy-Fit manifolds (2-boiler system) (adjust boiler connections as required for other boiler models)

Legend — Figure 9

1 Flow/check or spring check valve.

2 Isolation valves (when used).

3 Caps.

4 Easy-Fit® Manifold (supply) — layout and size per page 7 .

5 Easy-Fit® Manifold (return) — layout and size per page 7 .

6 System circulator. (not used if system is circulator zoned)

7 Expansion tank (diaphragm type).

8 System air eliminator.

9 System automatic air vent.

12 Boiler drain valves.

13 Cold water supply (per applicable codes).

17 Boiler circulator — circulates water between boiler and

Easy-Fit® Manifolds.

18 System supply.

19 System return.

20 Boiler relief valve and discharge piping, installed per Evergreen

boiler manual.

21 Indirect-ﬁ red storage water heaters (Weil-McLain Aqua Plus Line shown) —

Example is shown connected to one boiler of the system. Setup is shown on the

next page for this conﬁ guration and also for the option of a DHW tank installed as

a system zone.

22 DHW boiler water supply, typical.

23 DHW boiler water return, typical.

24 DHW boiler-side circulator and ﬂ ow/check valve.

25 Strap system supply and return sensors to lines as shown, at least 6 pipe diameters

(but no more than 3 feet) from boiler connection tees. For redundancy, you can

install a supply and return sensor connected to each boiler.

31 Unions.

34 Low water cutoff.

Suggested DHW

boiler-side pipe

sizing

(for max 0.04

feet head loss per foot of

total equivalent length,

TEL)

Flow rate Size Flow rate Size

1 – 3.9 gpm ¾ 24 – 45 gpm 2

3.9 – 7.1 gpm 1 45 – 75 gpm 2½

7.1 – 16 gpm 1¼ 75 - 140 gpm 3

16 – 24 gpm 1½ 140 – 290 gpm 4

See

Figure 9, page 16

for setting up

an alternate

conﬁ guration if

DHW is located

in the system as

a zone instead

of being directly

connected.

NOTICE:

This method does

not provided

DHW redundancy.

DHW can only

be supplied

when Boiler 2 is

operational.

Part number 550-100-214/1220

– 15 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application A (cont.)

Purpose

• Space heating with multiple zones using system pump

or zone circulators.

• Zoning with circulators or zone valves.

• DHW piped directly to the Shadow 2 boiler.

• DHW priority — space heating is discontinued dur-

ing call for heat from water heater.

Control setting notes

• See the table on page 16 for required and optional

settings.

• The table follows the general setup required to achieve

the shown systems with shown priorities.

• Settings can be made using the WIZARD or by fol-

lowing instructions elsewhere in this manual to enter

the settings manually.

Circulators and piping

Provide an external relay and external power to any

circulator if its load rating exceeds 2.2 amps FLA,

3.6 amps locked rotor, or 16.4 amps in rush.

• Piping must be primary/secondary as shown.

• DHW circulator must be selected to handle the pres-

sure drop through the boiler, water heater and piping.

DHW circulator supplied by installer.

• For some large indirect water heaters, the required

ﬂ ow rate may require piping the water heater dif-

ferently.

• The control settings in table at right provide DHW priority

— space heating will be discontinued during a call for DHW.

• Zone circulators and relays supplied by installer. For alternate

zone wiring using a zone controller, see page 36 .

BOILER

• Boiler circulator shipped loose with boiler.

• Follow all instructions in this manual for piping boiler and

system.

= Supplied by installer

1 DHW circulators *

2 BOILER circulators

(shipped loose with boiler)

3 Zone circulators *

4 Zone valves (120V shown) *

5 120VAC power supply, 15-amp

minimum rating

6 Control

7 Zone thermostats *

8 Supply temperature sensor —

strap to supply line

9 Return temperature sensor —

strap to return line

10 DHW tank aquastats *

11 Outdoor temperature sensor

(supplied with boiler; install if

Control will be set for outdoor

reset operation)

12 Low water cutoff

13 Comm Board

14 System circulators and relay*

page 19

15 Shell-side circulators * page 23

LEGEND for Applications A, B and C

Part number 550-100-214/1220

– 16 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application A (cont.)

Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal

injury, death or substantial property damage.

SETUP FOR Figure 8, page 14 AS SHOWN (DHW directly connected)

Boiler Wiring and Control Settings

(See Figure 8, page 14 for items referenced)

Boiler

input

Wired

from:

Input

Assignment

Aux

Option

Output

Wired to:

***

Master

1 Zone 1 Tstat Priority 2 - Network 1 N/A 1 Zone 1 Circ/Valve

2 Zone 2 Tstat Priority 2 - Network 1 N/A 2 Zone 2 Circ/Valve

3 No Wire Aux Pump/Output * Any TT Input By It's Priority Settings 3 System Circ Relay *

Shadow

1 DHW Aquastat Priority 1 - Local 1 N/A 1 DHW Circ.

2 Zone 3 Tstat Priority 2 - Network 1 N/A 2 Zone 3 Circ/Valve

3 Zone 4 Tstat Priority 2 - Network 1 N/A 3 Zone 4 Circ/Valve

* System circulator will not be used if system is circulator zoned. Aux Pump/Output would not be required.

An additional Zone Circ. could be used here, instead.

Priority Settings

Priority # Setting Value Priority # Setting Value

Priority 1 – Local 1

(Boiler 2 only)

System Type DHW

Priority 2 – Network 1

(Boiler 1 only)

System Type

Select heating

system type

Run Blr Pump NO Run Blr Pump YES

Run Aux Output NO Run Aux Output YES

SETUP IF DHW IS LOCATED IN SYSTEM AS A ZONE

Boiler Wiring and Control Settings

(See Figure 8, page 14 for items referenced)

Boiler

input

Wired

from:

Input

Assignment

Aux

Option

Output

Wired to:

***

Master

1 Zone 1 Tstat Priority 3 - Network 2 N/A 1 Zone 1 Circ/Valve

2 Zone 2 Tstat Priority 3 - Network 2 N/A 2 Zone 2 Circ/Valve

3 No Wire Aux Pump/Output * Any TT Input By It's Priority Settings 3 System Circ *

Shadow

1 DHW Aquastat Priority 2 - Network 1 N/A 1 DHW Circ/Valve

2 Zone 3 Tstat Priority 3 - Network 2 N/A 2 Zone 3 Circ/Valve

3 Zone 4 Tstat Priority 3 - Network 2 N/A 3 Zone 4 Circ/Valve

* System circulator will not be used if system is circulator zoned. Aux Pump/Output would not be required.

An additional Zone Circ. could be used here, instead.

Priority Settings

Priority # Setting Value Priority # Setting Value

Priority 2 – Network 1

System Type DHW

Priority 3 – Network 2

System Type

Select heating

system type

Run Blr Pump YES Run Blr Pump YES

Run Aux Output YES Run Aux Output YES

*** Outputs are 120 VAC maximum 2.0 amps. Use relay for other voltages or higher amperages.

Figure 9 Typical Application A — multiple boiler system — setup requirements (parameters not listed below can be

left at factory default settings unless special needs indicate different settings)

Part number 550-100-214/1220

– 17 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Notes

Part number 550-100-214/1220

– 18 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Blr 1

Blr 2

Blr 3

Blr 4

DHW1

DHW2

DHW3

Fast-Track Setup — Typical Application B

Figure 10 Typical Application B — Piping layout — typical piping for multiple Evergreen

boilers, with DHW storage

heaters (4-boiler system) (adjust boiler connections as required for other boiler models)

Legend — Figure 10

1 Flow/check or spring check valve.

2 Isolation valves (when used).

3 Caps.

4 Easy-Fit® Manifold (supply) — layout and

size per page 7.

5 Easy-Fit® Manifold (return) — layout and

size per page 7.

6 System circulator (not used if system is

circulator zoned).

7 Expansion tank (diaphragm type).

8 System air eliminator.

9 System automatic air vent.

12 Boiler drain valve

13 Cold water supply (per applicable codes).

17 Boiler circulator — circulates water

between boiler and Easy-Fit® Manifolds.

18 System supply.

19 System return.

20 Boiler relief valve and discharge piping,

installed per

Evergreen

boiler manual.

21 Indirect-ﬁ red storage water heaters (Weil-McLain Aqua Plus Line shown) —

Example is shown with each water heater having its own circulator. Alternate:

reverse-return boiler-side piping using a single circulator.

22 DHW boiler water supply, typical.

23 DHW boiler water return, typical.

24 DHW boiler-side circulators.

25 DHW boiler-side supply Easy-Fit® Manifold.

26 DHW boiler-side return Easy-Fit® Manifold.

27 Flow/check or spring check valves (to prevent induced or gravity ﬂ ow in heating

system or DHW piping).

28 Check valve.

29 See water heater manual for DHW piping — The boiler-side piping in this

example uses a separate circulator for each DHW tank.

31 Unions.

32 Drain valves for DHW boiler water piping.

33 Strap system supply and return sensors to lines as shown, at least 6 pipe diam-

eters (but no more than 3 feet) from boiler connection tees. For redundancy, you

can install multiple sensors, each connected to a different boiler.

34 Low water cutoff.

This piping is

suggested only.

The layout above can be controlled

with the boiler control’s multi-

boiler function, DHW priority or by

an external control that provides

multiple boiler heating and DHW

priorities. This will provide domes-

tic priority by disabling the heating

system circulator any time there is

a DHW call for heat. The boiler

circulators, item 17, must operate on

any call for heat, whether heating

system or DHW. Offset the DHW

boiler-side supply and return man-

ifolds as shown so the total run of

pipe and ﬁ ttings to each of the water

heaters is approximately equal.

Suggested DHW

boiler-side pipe

sizing

(for max 0.04

feet head loss per foot of

total equivalent length,

TEL)

Flow rate Size Flow rate Size

1 – 3.9 gpm ¾ 24 – 45 gpm 2

3.9 – 7.1 gpm 1 45 – 75 gpm 2½

7.1 – 16 gpm 1¼ 75 - 140 gpm 3

16 – 24 gpm 1½ 140 – 290 gpm 4

Part number 550-100-214/1220

– 19 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application B (cont.)

See Legend on page 15 for Item number identiﬁ cation.

Part number 550-100-214/1220

– 20 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application B (cont.)

Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal

injury, death or substantial property damage.

Alternate piping: DHW circuit piped elsewhere in system — If the DHW circuit is piped elsewhere in the

system, the above settings will work only if the System Pump is activated during DHW calls for heat. To set the control

for this, set PRIORITY 2 — NETWORK 1 with RUN AUX PUMP/ OUTPUT set to YES instead of NO.

Boiler Wiring and Control Settings (See Figure 10, page 18 for items referenced)

Boiler

input

Wired

from:

Input

Assignment

Aux

Option

Output

Wired to:

***

Master

1 Zone 1 Tstat Priority 3 - Network 2 N/A 2 Zone 1 Circ/Valve

2 Zone 2 Tstat Priority 3 - Network 2 N/A 3 Zone 2 Circ/Valve

3 No Wire Aux Pump/Output ** Any TT Input By It's Priority Settings 1 System Circ **

Shadow

1 Zone 3 Tstat Priority 3 - Network 2 N/A 1 Zone 3 Circ/Valve

2 Zone 4 Tstat Priority 3 - Network 2 N/A 2 Zone 4 Circ/Valve

3 Zone 5 Tstat Priority 3 - Network 2 N/A 3 Zone 5 Circ/Valve

Shadow

1 Zone 6 Tstat Priority 3 - Network 2 N/A 1 Zone 6 Circ/Valve

2 Zone 7 Tstat Priority 3 - Network 2 N/A 2 Zone 7 Circ/Valve

3 Zone 8 Tstat Priority 3 - Network 2 N/A 3 Zone 8 Circ/Valve

Shadow

1 DHW1 Aquastat Priority 2 - Network 1 N/A 1 DHW1 Circ

2 DHW2 Aquastat Priority 2 - Network 1 N/A 2 DHW2 Circ

3 DHW3 Aquastat Priority 2 - Network 1 N/A 3 DHW3 Circ

** System circulator will not be used if system is circulator zoned. Aux Pump/Output would not be required.

An additional Zone CIRC. could be used here, instead.

*** Outputs are 120 VAC maximum 2.0 amps. Use relay for other voltages or higher amperages.

Priority Settings

Priority # Setting Value Priority # Setting Value

Priority 2 – Network 1

System Type DHW

Priority 3 – Network 2

System Type

Select heating

system type

Run Blr Pump YES Run Blr Pump YES

Run Aux Output NO Run Aux Output YES

Min Blrs *

Select as needed for quick

response

* Min Blrs setting is accessible in the Priority menus (see Figure 24, page 48 ). It is not included in the Wizard setup options.

Figure 11 Typical Application B — multiple boiler system — setup requirements (parameters not listed below can be

left at factory default settings unless special needs indicate different settings)

Purpose

• Space heating with multiple zones using system pump or

zone pumps.

• DHW connected to primary with a secondary connection.

Multiple DHW tanks are zoned with circulators.

• DHW priority— space heating is discontinued during call

for heat from water heater(s).

Control setting notes

• See the tables in Figure 11 for required and optional

settings.

• The table follows the general setup required to achieve

the shown systems with shown priorities.

• Settings can be made using the WIZARD or by following

instructions elsewhere in this manual to enter the settings

manually.

Circulators and piping

Provide an external relay and external power to any cir-

culator if its load rating exceeds 2.2 amps FLA, 3.6 amps

locked rotor, or 16.4 amps in rush.

• Piping must be primary/secondary as shown, with the

boiler piped in a secondary loop and the DHW piped in

a secondary loop with connections spanning the boiler

connections.

• DHW circulators supplied by installer. Size circulators

for required ﬂ ow.

• Control settings in Figure 11 provide DHW priority—

space heating is discontinued during call for DHW.

• Zone circulators and relays supplied by installer. For

alternate zone wiring using a zone controller, see page 36.

Part number 550-100-214/1220

– 21 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Notes

Part number 550-100-214/1220

– 22 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Blr 1

Blr 2

Blr 3

Blr 4

Fast-Track Setup — Typical Application C

Figure 12

Typical Application C —

Piping layout — typical piping for multiple

Evergreen

boilers, using isolation

exchanger (adjust boiler connections as required for other boiler models)

Legend — Figure 12

1 Flow/check or spring check valve.

2 Isolation valves (when used).

3 Cap.

4 Easy-Fit® Manifold (supply) — layout

and size per page 7 .

5 Easy-Fit® Manifold (return) — layout

and size per page 7 .

6a Heating system circulator

(exchanger tube-side).

6b Heat exchanger shell-side circulator

7 Expansion tanks (diaphragm type).

8 System air eliminator.

9 System automatic air vent.

12 Boiler drain valves.

13 Cold water supply connections (per applicable

codes).

17 Boiler circulator — circulates water between

boiler and Easy-Fit® Manifolds.

18 Heating system supply.

19 Heating system return.

20 Boiler relief valve and discharge piping,

installed per Evergreen

boiler manual.

21 Strap system supply and return sensors to lines

as shown, at least 6 pipe diameters (but no more

than 3 feet) from boiler connection tees. For

redundancy, you can install multiple sensors, each

connected to a different boiler.

31 Unions.

34 Low water cutoff.

Notes:

1. Contact heat exchanger manufacturer for heat ex-

changer shell-side and tube-side piping and circulator

requirements. Tube-side ﬂ ow and temperatures must

meet heating system requirements.

2. Contact heat exchanger manufacturer for sizing heat

exchanger.

3. Heat exchanger shell-side circuit requires its own

expansion tank as shown.

4. Heating system circuit requires its own expansion

tank, as shown, plus its own relief valve set to protect

heating system and heat exchanger piping and com-

ponents.

5. When individual isolation valves are used, individual

boiler and level controls may be required.

Use isolation heat

exchanger for:

1. Large volume systems with high

mineral content in water.

2. Systems exposed to untreated

quantities of makeup water.

3. Old systems severely contami-

nated with scale and rust buildup

inside piping and heat distribu-

tion units.

4. Process applications.

5. Commercial service water ap-

plications.

6. High water pressure applications,

requiring pressure relief setting

in heating system more than 80

PSIG (tall buildings). See notes

below.

Heat exchanger type — This illustration shows a shell

and tube exchanger. Other exchanger types may be used if

suitable for the system water conditions.

Part number 550-100-214/1220

– 23 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application C (cont.)

See Legend on page 15 for Item number identiﬁ cation.

Part number 550-100-214/1220

– 24 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Fast-Track Setup — Typical Application C (cont.)

Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal

injury, death or substantial property damage.

Boiler Wiring and Control Settings (See Figure 12, page 22 for items referenced)

Boiler

input

Wired

from:

Input

Assignment

Aux

Option

Output

Wired to:

***

Master

1 No Wire Aux Pump/Output ** Any TT Input By It's Priority Settings ** 1 System Circ

2 No Wire Aux Pump/Output Any TT Input By It's Priority Settings 2 Shell-side Circ

3 Zone 1 Tstat Priority 2 - Network 1 N/A 3 Zone 1 Circ/Valve

Shadow

1 Zone 2 Tstat Priority 2 - Network 1 N/A 1 Zone 2 Circ/Valve

2 Zone 3 Tstat Priority 2 - Network 1 N/A 2 Zone 3 Circ/Valve

3 Zone 4 Tstat Priority 2 - Network 1 N/A 3 Zone 4 Circ/Valve

Shadow

1 Zone 5 Tstat Priority 2 - Network 1 N/A 1 Zone 5 Circ/Valve

2 Zone 6 Tstat Priority 2 - Network 1 N/A 2 Zone 6 Circ/Valve

3 Zone 7 Tstat Priority 2 - Network 1 N/A 3 Zone 7 Circ/Valve

Shadow

1 Zone 8 Tstat Priority 2 - Network 1 N/A 1 Zone 8 Circ/Valve

2 Zone 9 Tstat Priority 2 - Network 1 N/A 2 Zone 9 Circ/Valve

3 Zone 10 Tstat Priority 2 - Network 1 N/A 3 Zone 10 Circ/Valve

** System circulator will not be used if system is circulator zoned. Aux Pump/Output would not be required.

An additional Zone CIRC. could be used here, instead.

*** Outputs are 120 VAC maximum 2.0 amps. Use relay for other voltages or higher amperages.

Priority Settings

Priority # Setting Value Priority # Setting Value

Priority 2 – Network 1

System Type

Select CUSTOM and set

temperatures and other as

needed for heat exchanger

Run Blr Pump YES

Run Aux Output YES

Figure 13 Typical Application C — multiple boiler system — setup requirements (parameters not listed below can be

left at factory default settings unless special needs indicate different settings)

Purpose

• Isolation heat exchanger for applications with high system

pressure (over 30 PSIG), such as tall buildings. Typical

application shown with shell and tube heat exchanger

provided by installer. Boiler maximum allowable pressure

is 30 PSI. Space heating provided by hot water supply of

heat exchanger to terminal units.

• System circulator and shell-side circulator are activated on

call for heat by the heating system.

• DHW system not shown.

Control setting notes

• See the tables in Figure 13 for required and optional

settings.

• The table follows the general setup required to achieve

the shown systems with shown priorities.

• Settings can be made using the WIZARD or by following

instructions elsewhere in this manual to enter the settings

manually.

Circulators and piping

Provide an external relay and external power to any cir-

culator if its load rating exceeds 2.2 amps FLA, 3.6 amps

locked rotor, or 16.4 amps in rush.

• Piping must be primary/secondary as shown, with the

boiler piped in a secondary loop.

• Size circulators for required ﬂ ow.

• Zone circulators and relays supplied by installer. For

alternate zone wiring using a zone controller, see page 36.

Part number 550-100-214/1220

– 25 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Notes

Field wiring (see wiring diagram, Figure 15, page 34 )

Figure 14 Field wiring overview (see Figure 15, page 34 and

Figure 16, page 35 for detailed schematic and ladder

wiring diagrams)

Line

Voltage

Multiple

boiler

communication

wiring

Low

Voltage

Part number 550-100-214/1220

– 26 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Evergreen

boiler wiring

Connecting terminals

All ﬁ eld wiring is made through the eight (8) colored connectors

(shipped loose with boiler) directly to the control module. Line volt-

age, 120 VAC, terminals are on the top of the control module. Low

voltage, 24 VAC, terminals are on the bottom of the control module.

Wire entrances

Wire entrance knockouts are provided on the top left, the bottom

left side and the top right side of the boiler cabinet:

1. Line voltage— ﬁ ve (5) knockouts on the top left of the cabinet

(Line In, Output 1, 2, 3, Boiler Circ.).

2. Low voltage— two (2) knockouts on the bottom left side of

the cabinet.

3. Multiple boiler communication wiring—a single knockout on

the top right side of the cabinet.

Installer MUST use a strain relief through jacket

knockouts. Failure to do so can cause severe personal

injury, death or substantial property damage.

Installer MUST SEAL all electrical entrances using a

sealed strain relief or a strain relief sealed with duct

seal putty or silicone. Sealing the entrances prevents

the boiler from drawing air from inside the boiler

room. This is particularly important if the boiler is

located in the same room as other gas appliances.

Failure to seal entrances could result in sever per-

sonal injury, death or substantial property damage.

Wire routing in the cabinet

Line voltage:

(120VAC in, circulator outputs)

1. Install four (4) of the wire tie bases to the holes on the left side

interior of the cabinet.

2. Line voltage should be wired from the top left electrical en-

trances following the left side of the cabinet.

3. Wires should be bundled together and secure with the

provided wire ties to the wire tie bases located on the left

side wire chase. Two (2) sets of bases are provided, one (1)

for line in and one (1) for the circulator outputs. Route

wires in front of the transformer then into terminal blocks.

4. Strip end of wire no more than 1/8” to avoid exposing unin-

sulated wire.

5. It is recommended to install an On/Off service switch in a

junction box mounted near the boiler. Installation must meet

all National and local electrical codes.

Low voltage:

1. Mount low voltage wire grommet to desired low voltage

knockout.

2. Thermostat, aquastat, limit devices, system sensors, 0-10VDC

input and outdoor temperature sensor wire pairs should be

routed through the grommet.

3. Wires should be connected directly into the corresponding

terminal block.

4. Low water cutoff (optional) should be routed following the

instructions in step 3. Provide strain relief and a seal at cabinet

ent ry.

5. Bundle all wires together with provided wire ties.

6. After wires are attached to the control terminal blocks, make

sure wires are properly sealed in the cabinet electrical entrances.

Multiple boiler communication wiring

1. Wires should be shielded thermostat wires, or equivalent.

2. Route wires through top right knockout to communication

board on display bracket.

3. Provide strain relief and seal at cabinet entry.

Wiring to

Comm board

inside cabinet

boiler

Part number 550-100-214/1220

– 27 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Field wiring (see wiring diagram, Figure 15, page 34 )

A. 120 VAC Power Supply – REQUIRE D

Terminal Block P1

1. Provide and install a properly-sized, fused disconnect or service

switch as required by applicable codes. (15-amp for most cases.)

a. Use table at right to determine total load.

2. Connect properly sized

120 VAC power wiring to Evergreen

boiler line voltage terminal strip P1 as shown at right.

3. If possible, provide a surge suppressor in the supply power

line. This will reduce the possibilities of control damage due

to line surges.

4. Must wire ground to this terminal to provide boiler grounding.

Determine total load

Boiler & boiler pump

(combined load)

Output 1 . . . . . . .

(2.0 amps max)

Output 2 . . . . . . .

(2.0 amps max)

Output 3 . . . . . . .

(2.0 amps max)

TOTAL . . . . . . .

5.6 amps

____ amps

See Figure 15, page 34 for

details

B. 120 VAC Outputs 1, 2 & 3 – On each boiler – As needed for systems

Terminal Strip P2 (EVG control module)

1. Output 1: P2 Terminals 1 (H), 4 (N), 7 (G).

2. Output 2: P2 Terminals 2 (H), 5 (N), 8 (G).

3. Output 3: P2 Terminals 3 (H), 6 (N), 9 (G).

4. Maximum load: 2.2 amps (use relay if circulator load is higher). See WARN-

ING below.

5. Each boiler has three outputs (Output 1, Output 2, and Output 3) that provide

120 VAC to the following listed below.

• A zone

circulator.

• A system circulator.

• A DHW circulator (used to circulate through an indirect tank).

• An auxil

iary item that must be energized during an input call, such as

an air damper.

6. When using inputs/outputs for heat/DHW demands, each input (Input 1,

Input 2, and Input 3) controls its respective 120 VAC output (Output 1,

Output 2, and Output 3). Outputs are energized only when BOTH condi-

tions below are met:

a. The corresponding input indicates a call for heat/DHW (i.e., contact

closure).

b. The PRIORITY assigned to the Input/Output pair is ACTIVE (i.e., the

zone may be calling but the pump won’t activate unless the boiler is cur-

rently running on that system/priority).

7. When using the inputs/outputs for the AUX PUMP/OUTPUT function, the

output is controlled by selectable conditions set up in the control.

a. Use the AUX PUMP/OUTPUT function for devices such as system pumps,

combustion air dampers, and other auxiliary equipment to activate when

the boiler is on/running.

b. See page 56 and page 57 for more information on the setup and selection

of operating conditions.

For Priority DHW Application:

The DHW aquastat(s) and pumps can be connected to any one of

the three input/output pairs.

The selected input should be assigned to LOCAL or P1 if single,

PRIORITY 1 if direct piped to the boiler, or NETWORK PRIOR-

ITY 1 if located in the system. Set the assignment during the WIZ-

ARD setup or manually in the ASSIGN INPUTS menu.

See Figure 15, page 34 for details

Output circuits are 120 VAC. If an

output is to operate a low voltage

circuit or must be an isolated con-

tact, use an isolation relay. See

example above for 24 VAC zone

valves.

CIRCULATOR POWER — The maximum allow-

able current for each circulator is 2.2 amps

at 120 VAC

For circulators with higher amp ratings, install a circulator relay

or starter. Connect only the 120 VAC coil to the Evergreen®

circulator terminals.

Part number 550-100-214/1220

– 28 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

C. 120 VAC to Boiler Circulator – REQUIRED

Terminal Strip P4 on Comm Board

1. Provides 120 VAC to the boiler circulator at P4 Terminal to Control module.

2. Terminals are: 1 (H), 2 (N), 3 (G).

3. Maximum load: 2.0 amps (use relay if circulator load is higher). See WARN-

ING.

4. The boiler circulator (shipped loose with boiler) is used in the boiler loop of

the primary / secondary piping. Primary / secondary piping is required to

be used with the Evergreen® boiler to ensure proper ﬂ ow through the heat

exchanger.

See Figure 15, page 34 for details

D. 24 VAC Inputs 1, 2 and 3 (tstats, end switches, etc.) – As needed for systems

Terminal Strip P11 (input 1) & Terminal Strip P15 (inputs 2 & 3) (EVG control module)

1. Input 1 – Terminal Strip P11 – 4 & 5 (EVG control module)

2. Input 2 – Terminal Strip P15 – 1 & 2 (EVG control module)

3. Input 3 – Terminal Strip P15 – 3 & 4 (EVG control module)

4. These three inputs on each boiler can indicate a call for heat to the control

by means of a dry contact closure (thermostat, aqua

stat, or switch). (See

right and Figure 15, page 34 ).

5. Each control provides input/output pairs for up to three zones or three systems

(priorities). For multiple boiler applications, this is true for each boiler (for

eight boilers, total is 3 x 8 or 24).

6. For DHW applications, the aquastat can be connected to one of the three

input/output pairs. Wire the DHW circulator to the corresponding output.

a. For minimum setup steps, take advantage of the factory default settings.

Use LOCAL PRIORITY 1 for the DHW circuit if piped directly to the

boiler, or NETWORK PRIORITY 1 if the DHW circuit is located in the

system as a zone.

b. For DHW circuits piped as a zone in a system with a system pump, setup

the control to run AUX PUMP/ OUTPUT during DHW operation. This

can be done during the WIZARD setup process. Note that the input used

for AUX PUMP/OUTPUT cannot be used to accept a heat input.

DHW circuit in system — For high-demand DHW circuits, the con-

trol setting for MIN BOILERS must be set using the NETWORK 1

or NETWORK 2 priority menu after the WIZARD is completed

to ensure quick response to demand. See page 53 for a description

of the MIN BOILERS setting.

7. The default control setting uses each input (INPUT 1, INPUT 2, and IN-

PUT 3) to control its respective 120 VAC output (OUTPUT 1, OUTPUT 2,

and OUTPUT 3).

Use of 0–10VDC input for modulation disables INPUT 1 from

creating calls for heat. This function can only be set up on single

boilers. See page 32 for instructions.

See Figure 15, page 34 for details

Thermostats — DO NOT supply 24-volt power to the thermostat

circuits (Input1, Input2 and Input3 in

Figure 15, page 34

) or

attempt to supply 24 volts for any other application.

For thermostats that require a continuous 24-volt power

source, connect the common wire (“C”) to

P11

Pin 2

(see Fig-

ure 15, page 34 )

. Do NOT exceed total amp draw per thermostat.

Zone valves — If using 3-wire zone valves, use

relays to provide dry contacts to the Control ther-

mostat connections. The zone valve end switches

of 3-wire valves carry 24 VAC from the valve.

Thermostat anticipator setting — 0.1 amps.

Part number 550-100-214/1220

– 29 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

E. System supply and return temperature sensors – REQUIRED

Terminal Block P14 (EVG control module)

1. Two strap-on temperature sensors are shipped with each boiler. Attach one

to the system supply piping and the other to the system return piping. For

piping larger than 5 inch diameter or nonmetallic piping, using immersion

sensors will provide faster response. See Evergreen® boiler manual replace-

ment parts section for available immersion sensors.

Preferably, connect outdoor, system supply and system return sen-

sors to more than one boiler to provide redundancy. If one of the

sensors fails, the master boiler Evergreen® control automatically

look for an available sensor.

2. Locate the supply sensor at least six pipe diameters, but no further than 3

feet, downstream from the boiler connection to the main to ensure adequate

mixing.

3. Supply sensor – wire between P14 #1 and #2 (common).

4. Return sensor – wire between P14 #3 and #2 (common).

5. Thermostat wire can be used to connect these sensors.

6. The Control compares the system return temperature with the system supply

temperature. Should the return temperature ever exceed the supply tempera-

ture, the Control knows there is likely a sensor failure and will report this

problem on the display.

All heating systems shown in this manual require the System Sup-

ply and Return sensors to be installed for proper control function.

System will not properly provide heat if sensors are not installed

according to these instructions.

Strap to supply & return piping

See Figure 15, page 34 for details

F. Outdoor temperature sensor – REQUIRED unless exempted

Terminal Block P10 (EVG control module)

1. The control provides programmable options if using an outdoor tempera-

ture sensor. This sensor is supplied with the boiler.

2. The outdoor sensor must be installed unless speciﬁ cally ex-

empted in the Energy Act statement on page 2 .

3. Mount the outdoor sensor on an exterior wall, shielded from direct sunlight

or ﬂ ow of heat or cooling from other sources.

Preferably, connect outdoor, system supply and system return sen-

sors to more than one boiler to provide redundancy. If one of the

sensors fails, the master boiler Evergreen® control automatically

look for an available sensor.

4. The wire outlet on the sensor must be oriented DOWN to prevent water

entry.

5. Connect the sensor leads to the terminal shown at right and in the wiring

diagrams (see Figure 15, page 34 ). Thermostat wire can be used to connect

the sensor.

See Figure 15, page 34 for details

G. Additional heat demand contacts – OPTIONAL

Terminal Block P16 #6 & #7 (EVG control module)

1. Each boiler’s control module can be set to activate another heat source using its

additional heat demand dry contacts through terminal block P16 pins 6 & 7.

2. Connect these terminals to call for heat from the other heat source.

3. Set the control to activate the heat demand contacts as needed.

4. The setup is done in the priority menu for the priority that will call for the

additional heat operation. See page 55 for details.

5. Contact electrical ratings: 24 VAC or less; 0.5 amp or less.

6. See “Add’l Heat Demand” on page 53 regarding which boilers may use this

function, depending on the priority being used.

See Figure 15, page 34 for details

Part number 550-100-214/1220

– 30 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

H. Alarm contacts – OPTIONAL

Terminal Block P16 #4 & #5 (EVG control module)

1. The control’s alarm dry contact (P16, terminals 4 and 5) closes when the

boiler enters manual lockout only.

2. Connect these terminals for remote alarm notiﬁ cation.

3. Contact electrical ratings: 24 VAC or less; 0.5 amp or less.

See Figure 15, page 34 for details

I. External limits – OPTIONAL

To cause MANUAL reset: Terminal Block P13 #1 & #2 (EVG control module)

EVG control will require manual reset after circuit is interrupted

1. Remove factory-installed jumper and connect isolated contacts of external

limits across P13 pins 1 and 2 to cause the control to enter manual reset lock-

out if the limit circuit opens. The limit must close and the control must be

manually reset using the procedure given in this manual. See drawing at right

and wiring diagram ( Figure 15, page 34 ).

The control will lockout when a limit in its manual reset circuit opens

(P13 pins 1 & 2). The control activates its alarm terminals and shuts

the boiler off. An operator (user or technician) must manually reset

the control to resume heating. Cycling power on and off will NOT

reset the control.

See Figure 15, page 34 for details

To cause AUTOMATIC reset: Terminal Block P13 #3 & #4 (EVG control module)

EVG control will reset automatically after circuit is interrupted

1. Remove factory-installed jumper and connect isolated contacts of external

limits across P13 pins 3 and 4 to cause the control to shut down the burner

on limit opening, then automatically restart 150 seconds after the limit closes.

2. See drawing at right and wiring diagram ( Figure 15, page 34 ).

See Figure 15, page 34 for details

J. Low water cutoff – WHEN REQUIRED

Terminal Block P12 (EVG control module)

1. Install a low water cut-off when required.

2. Wiring Weil-McLain LWCO Kit

a. When possible, use the Weil-McLain Low water cut-off kit listed in the

Boiler manual replacement parts section. It includes a probe-type low

water cut-off and provides a simple harness connection for the wiring.

b. Connect as shown at top right and in the control wiring diagram ( Fig-

ure 15, page 34 ).

c. The Weil-McLain Low water cut-off kit is included with the boiler.

3. Wiring another LWCO — must have isolated contact

a. Other low water cut-offs can be used with the EVG only if the device uses

an isolated contact for the LWCO function.

b. Connect as shown at bottom right.

See Figure 15, page 34 for details

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

Part number 550-100-214/1220

– 31 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

K. 0–10 VDC Remote TARGET input – OPTIONAL

Terminal Block P15 #5 & #6 (EVG control module)

1. See illustration at right and Figure 15, page 34 (wiring diagram) for details.

2. Remote target using 0–10VDC input requires a 0–10VDC input signal at

P15-5/6 as shown at right.

a. The input positive connection must be at P15 terminal 6 and the common

connection at terminal 5.

b. Using PRIORITY 1, 2, or 3 for single boiler, or LOCAL PRIORITY 1 or

LOCAL PRIORITY 2 for a network boiler.

The 0–10VDC input must be

to that boiler

c. Using NETWORK PRIORITY 1 or NETWORK PRIORITY 2 for a net-

work boiler. The 0–10VDC input must be made to the MASTER boiler

of the network

3. The illustration at right also shows how to connect TT or end switch contacts

at INPUT 1, INPUT 2 and INPUT 3 of any boiler.

a. If the target controller has a heat demand contact, connect it to one of

the INPUTs and set up in the WIZARD or manually.

b. A dry contact heat demand must be applied to one of the inputs in order

to initiate a call for heat.

4. The 0–10VDC signal is used to adjust the supply target temperature, using

the TARGET ADJUST setting. Set TARGET ADJUST during the WIZARD

or manually in the setup menu for the priority chosen.

Suggested 0–10VDC remote target setup for single boiler or a local

priority

a. Use PRIORITY 1 (or LOCAL PRIORITY 1) for the DHW heating circuit

when used. This priority’s default values are set for DHW, direct-con-

nected to the boiler. Verify that settings are suitable for the application,

changing if needed.

b. Use PRIORITY 2 (or LOCAL PRIORITY 2) for the heating circuit that

uses the 0–10VDC input.

• For single boilers, the factory default settings for either of these pri-

orities make them a good choice for space heating applications. Set

priority values to the following:

• Set TARGET ADJUST value to 0–10V.

• Set VOLTS FOR MAX at the voltage that will call for the highest target

temperature. Set SUPPLY MAX at this temperature.

• Set VOLTS FOR MIN at the voltage that will call for the lowest target

temperature. Set SUPPLY MIN at this temperature.

• For voltages between VOLTS FOR MAX and VOLTS FOR MIN, the

target temperature will range proportionately between SUPPLY MAX

and SUPPLY MIN.

• NOTE: The 0–10VDC signal replaces the ODT sensor as the target

temperature modiﬁ er (TARGET ADJUST setting). The EVG control

does not control target.

Suggested 0–10VDC remote target setup for a network priority:

a. Setup the control as above, but select NETWORK PRIORITY 2 for the

heating circuit that uses the 0–10VDC input..

b. If a local (direct-connected) DHW circuit is used, select LOCAL PRIOR-

ITY 1 for DHW. If a DHW circuit in the system is used, select NETWORK

PRIORITY 1 for DHW.

See Figure 15, page 34 for details

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

Part number 550-100-214/1220

– 32 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

L. 0–10 VDC Remote MODULATION input – OPTIONAL

Terminal Block P15 #5 & #6 (EVG control module)

Using an external multiple boiler controller — Remote modula-

tion using an external controller only works with each boiler set up

as a SINGLE boiler in the EVG Control setup.

1. See illustration at right and Figure 15, page 34 for details.

2. This illustration also shows how to connect TT or end switch contacts at

INPUT 2 and INPUT 3 for other uses.

3. This function can only be used with a single boiler, NOT for a boiler in a

network.

4. Note that using 0–10VDC input replaces INPUT 1 for generating a heat

demand. Do not wire any input to INPUT 1 as shown at right.

5. Remote modulation requires a 0–10VDC input signal at P15-4/5 as shown

at right.

a. The 0–10VDC input positive connection must be at terminal 6 and com-

mon connection at terminal 5.

6. Control setup:

a. Many options are available for conﬁ guring the control. The following is

a suggested setup that uses factory default settings as much as possible.

b. If DHW is required, use PRIORITY 1 to minimize setup steps.

• Connect the DHW aquastat to INPUT 2 or INPUT 3 and assign the

input used to PRIORITY 1.

• Verify that control settings are suitable for the application, changing

if necessary.

c. Use PRIORITY 2 for the system to be remote modulated.

• The factory default settings for this priority are best suited for space

heating.

• Assign INPUT 1 to the priority chosen. Accept all defaults for INPUT 1

— no changes should be necessary during the WIZARD.

• After the WIZARD has been completed, go to the ASSIGN INPUTS

menu for INPUT 1. Change SOURCE to 0–10V (default setting is

TT1). See page 56 for ASSIGN INPUTS menu information.

7. Operation:

a. The boiler comes on at 0.9VDC and turns off at 0.8VDC. 2 VDC = 20%

input. 10 VDC = 100% input. These voltage settings are not adjustable.

b. OUTPUT 1 (120 VAC) is activated and deactivated as the heat demand

is turned on and off. This output is a good choice to operate the system

pump.

8. NOTE: The EVG control can be conﬁ gured to use either 0–10VDC for target

operation (see previous section) or modulation,

but not both.

See Figure 15, page 34 for details

Part number 550-100-214/1220

– 33 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

M. Proof of closure (ﬂ ow switch and/or CAD)

– OPTIONAL

Jumper on Terminal Strip P7 (EVG control)

1. A ﬂ ow switch or combustion air damper (CAD) interlock can be con-

ﬁ gured by clipping the jumper on terminal strip P7. Strip the jumper

ends and wire components as shown at right and in the wiring diagram

( Figure 15, page 34 ).

2. No control settings are required when using a ﬂ ow switch.

a. Each boiler is assumed to have its own ﬂ ow switch, wired as shown

at right.

3. To conﬁ gure the EVG control for a CAD interlock:

a. Assign any INPUT (recommend

INPUT 3) as a AUX PUMP/ OUT-

PUT

function. For multiple boiler applications, use any input on

any boiler in the network

. The example at right demonstrates using

INPUT/OUTPUT 3 on the MASTER boiler.

b. For the AUX PUMP/ OUTPUT operating mode, select ANY BURNER

DEMAND. This ensures the damper will be activated any time any

boiler is called on to ﬁ re.

c. Wire the corresponding

OUTPUT (following recommendation,

OUTPUT 3) to provide 120 VAC to the damper motor when activated.

Use an isolation relay if damper motor requires another voltage or

more than 2.0 amps on 120 VAC.

d. For a multiple boiler system, when any boiler is called on to ﬁ re,

whether for local or network demand, the combustion air damper will

be powered (120 VAC) from the assigned boiler

OUTPUT as shown

at right (using OUTPUT 3 on the master boiler).

The devices used must provide electrically isolated contacts,

because the P7 jumper circuit carries 5 VDC.

Ensure that the wires are connected only as shown. The right

side of each jumper must connect only to the right side of

other jumpers

. Failure to comply will cause incorrect opera-

tion of the proof of closure circuits.

See Figure 15, page 34 for details

N. Multiple Boiler and BMS Connections

Terminal Strip JP4 on Comm Board (display bracket right side)

1. The boiler control is capable of multiple boiler communication and

control of up to eight Evergreen

boilers in one installation.

2. The boiler control is also capable of BMS (Building Management System)

communication.

3. See wiring at right and in the wiring diagram ( Figure 15, page 34 ).

4. Use shielded 3-wire cable. Do not exceed 1,000 feet wire length.

5. Boiler to Boiler wiring connections

a. Connect 3-wire cable between Boiler-to-Boiler OUT (JP4-GND, B2,

A2) on one boiler to Boiler-to-Boiler IN (JP4-GND, B3, A3) on the

next boiler.

b. Continue this wiring until all boilers are interconnected.

6. MODBUS to BMS (Building Management System)

a. The control is equipped with MODBUS communication to com-

municate with a BMS.

b. Use terminal JP4 (JP4-BMSA, BMSB, GND) to wire to the BMS

control.

c. If the BMS uses BACnet protocol, install a BACnet converter between

the BMS and the Evergreen

MODBUS-to-BMS terminals (P5).

See Figure 15, page 34 for details

Field wiring (see wiring diagram, Figure 15, page 34 )(continued)

Wiring diagram — schematic

Figure 15 Evergreen

schematic wiring diagram (see Figure 16, page 35 for legend and notes)

Part number 550-100-214/1220

– 34 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Wiring diagram — ladder

Figure 16 Evergreen

ladder wiring diagram (see Figure 15, page 34 for schematic wiring diagram)

Part number 550-100-214/1220

– 35 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Zoning with the EVG Control

A. Zoning with CIRCULATOR S, suggested applications

Multiple space heating zones — Optional DHW direct-piped to one or more boilers

1. Review wiring information on page 27 (120 VAC out-

puts) and page 28 (24 VAC inputs).

2. The conﬁ guration at right uses the three input/output

pairs of each boiler to receive thermostat (or DHW

aquastat) inputs on P11-4/5, P15-1/2, and P15-3/4;

and circulator outputs on P2 as shown.

3. Assign as many available input/output pairs in the

network as needed for zoning.

4. Individual boilers can be conﬁ gured to operate direct-

piped DHW loads as shown at right. Individual boilers

can also be used for other direct-piped loads.

5. Setting the controls for network space heating zones:

a. Recommended — assign the space heating input/

outputs to NETWORK PRIORITY 2. The factory set-

tings default to space heating, reducing the changes

needed to set up the controls.

b. Choose the space heating system type that matches

the heating system during the WIZARD setup or

manually in the NETWORK PRIORITY 2 menu.

c. Use the factory default settings for the system type

chosen, or change if needed.

6. Setting the controls for individual boiler DHW loads:

a. Assign the input/output connected to the DHW

loop to LOCAL PRIORITY 1, which defaults to

settings for DHW.

b. Verify that settings are acceptable. Change if

needed.

7. Factory defaults should work for most other settings

not listed above.

Part number 550-100-214/1220

– 36 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

B. Zoning with CIRCULATOR S, suggested applications

WMCR circulator zone controller plus DHW controlled by boiler, Optional DHW

1. Review wiring information on page 27 (120 VAC out-

puts) and page 28 (24 VAC inputs).

To shut down space heating during DHW operation

Provide and connect relay

(120 VAC coil with NC

contact) to interrupt the zone controller’s ZC-ZR (120

VAC operating circuit).

a. This is required in all applications where the DHW

loop is piped in the system, not directly piped to

a boiler. Also, the boiler circulator must be set to

operate during DHW calls for system DHW ap-

plications.

b. For local DHW applications (DHW direct-piped to

a boiler), this relay is optional. Space heating pumps

will operate when called on by the zone controller,

but no heat will be delivered to the system — the

boiler circulator will not run during DHW heating.

3. This application example provides domestic priority

by using the EVG control(s).

4. The conﬁ guration at right uses INPUT 2 on any boiler

for space heating with the call for heat coming from

the zone controller (X-X).

5. INPUT 1 is connected to a DHW aquastat.

6. This conﬁ guration applies to either a local demand

(direct-piped to a single boiler) or a network demand

(piped to the main system).

7. Suggested for space heating: Assign INPUT 2 to either

LOCAL PRIORITY 2 (direct) or NETWORK PRIOR-

ITY 2 (system). To set up the priority, choose the space

heating system type that matches the heating system

during the WIZARD setup or manually in the prior-

ity menu.

8. Suggested for DHW: Assign INPUT 1 to either LOCAL

PRIORITY 1 (direct) or NETWORK PRIORITY 1

(system). Wire the DHW circulator to OUTPUT 1. Set

the control for boiler pump ON if DHW is network

piped. Set the control for boiler pump OFF if DHW is

direct-piped to a boiler (local).

9. Use the factory default settings for DHW and for the

heating system type chosen, or change if needed. Fac-

tory defaults should work for other settings not listed

above.

P15, P11, and P2 are terminal strips on the EVG control

Relay

R1, when used, is provided by installer

Zoning with the EVG Control (continued)

Part number 550-100-214/1220

– 37 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Zoning with the EVG Control (continued)

C. Zoning with ZONE VALVES, multiple boilers, suggested applications

(see EVG Boiler Manual for single boiler suggested applications)

Multiple space heating zones with direct-piped DHW on one or more boilers (optional)

This suggested application only applies

to systems with DHW piped directly to

individual boilers. For systems with DHW

connected to the system other control ar-

rangements may be required.

1. Review wiring information on page 27 (120 VAC

outputs) and page 28 (24 VAC inputs).

2. The conﬁ gurations at right use the three input/out-

put pairs of each boiler (except INPUT/OUTPUT 1

on the boiler wired for system circulator) to receive

thermostat (or DHW aquastat) inputs on P11-4/5,

P15-1/2, and P15-3/4. The space heating system

circulator is connected to OUTPUT 1 (terminals 1,

4, and 7 on P2).

3. Assign as many available input/output pairs in the

network as needed for zoning.

4. Setting the controls for network space heating zones:

a. Recommended — assign the space heating input/

outputs to NETWORK PRIORITY 2. The factory

settings default to space heating, reducing the

changes needed to set up the controls.

b. Choose the space heating system type that

matches the heating system during the WIZARD

setup or manually in the NETWORK PRIOR-

ITY 2 menu.

c. Use the factory default settings for the system

type chosen, or change if needed.

5. On the boiler that is used for system circulator, as-

sign INPUT 1 to AUX PUMP/ OUTPUT. Then select

ANY INPUT BY ITS PRIORITY when prompted

for when to activate the output. This will cause the

system pump to run when any of the space heating

zones calls for heat.

6. Setting the controls for individual boiler DHW

loads:

a. Assign the INPUT that is wired to the DHW

aquastat to LOCAL PRIORITY 1, which defaults

to settings for DHW.

b. Verify that settings are acceptable. Change if

needed.

7. On the boiler that is used for system circulator,

Input 1 cannot be used for a wired connection (as

shown in the top right diagram.)

8. Factory defaults should work for other settings not

listed above.

9. Wire 24 VAC zone valves as shown below:

P15, P11, and P2 are terminal strips on the EVG control

(See wiring at left for 24 VAC zone valves).

Part number 550-100-214/1220

– 38 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Zoning with the EVG Control (continued)

D. Zoning with ZONE VALVES, multiple boilers, suggested applications

(see EVG Boiler Manual for single boiler suggested applications)

WMZV zone valve zone controller plus DHW controlled by boiler, Optional DHW

This suggested application only applies to systems with DHW piped directly to individual boilers. For systems

with DHW connected to the system, other control arrangements may be required.

The wiring shown here will also work for a system as in Typical Application B on page 18 . This uses two systems

piped in parallel. If the space heating system pump is turned off, no heat is delivered to the space heating loop.

1. Review wiring information on page 27 (120 VAC

outputs) and page 28 (24 VAC inputs).

2. This application example provides domestic pri-

ority by using the EVG control(s). Space heating

pumps will operate when called on by the zone

controller, but no heat will be delivered to the

system — the boiler circulator will not run during

DHW heating.

3. The conﬁ guration at right uses INPUT 2 on any

boiler for space heating with the call for heat com-

ing from the zone controller (X-X).

4. INPUT 1 is connected to a DHW aquastat.

5. This conﬁ guration applies to either a local demand

(direct-piped to a single boiler) or a network de-

mand (piped to the main system).

6. Suggested for space heating: Assign INPUT 2 to

either LOCAL PRIORITY 2 (direct) or NETWORK

PRIORITY 2 (system). To set up the priority,

choose the space heating system type that matches

the heating system during the WIZARD setup or

manually in the priority menu.

7. Suggested for DHW: Assign INPUT 1 to LOCAL

PRIORITY 1. Wire the DHW circulator to OUT-

PUT 1. Set the control for boiler pump OFF during

DHW calls.

8. Use the factory default settings for DHW and

for the heating system type chosen, or change if

needed. Factory defaults should work for other

settings not listed above.

P15, P11, and P2 are terminal strips on the EVG control.

Part number 550-100-214/1220

– 39 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Figure 17 Initial navigation — Accessing CONTRACTOR menus (multiple-boiler screens shown)

Evergreen

Control — INITIAL SCREENS

Part number 550-100-214/1220

– 40 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Part number 550-100-214/1220

– 41 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Figure 18 Control sequence of operation

Display

status

text

Control action

(also see Figure 19, page 42 )

POWER

• Check the boiler model listed on the power-up screen. If it is not correct, turn off the boiler. See page 43 for in-

structions to change setting.

• When power is turned on, the screen lists sensors that are detected. If any sensor is not listed, make sure it is con-

nected correctly. Turn off power and restart.

Standby

• Standby - no calls for heat.

• Toggles through no dots, 1 dot, 2 dots, then 3 dots while in standby (wrench symbol will show instead if mainte-

nance is needed).

Blower

• Call for heat detected.

• Display on with BLUE light (space heating) or PURPLE light (DHW).

• Start min/max timers if more than one system is calling - highest priority starts ﬁ rst.

• Start circulators for this priority based upon settings.

• Calculate target temp — If sensor temp is below target temp, begin ﬁ ring sequence.

• Blower to ignition speed for prepurge.

Ignition

• After prepurge times out, begin ignition cycle.

• Activate gas valve and ignition spark.

• Continue ignition spark for ignition period.

• Turn off spark and use electrode to check for ﬂ ame signal.

Space

Heating

• Flame detected.

• Release boiler to modulation.

• NOTE: If ﬂ ame is not detected, the gas valve is turned off, blower turns on (postpurge), and control starts cycle

again. After 5 failures, the control waits 60 minutes, then tries again.

• If priority timer times out, switch to next priority and start priority timer.

• If demand satisﬁ ed, go to postpurge.

DHW

Heating

• Flame detected.

• Release boiler to modulation.

• NOTE: If ﬂ ame is not detected, the gas valve is turned off, blower turns on (postpurge), and control starts cycle

again. After 5 failures, the control waits 60 minutes, then tries again.

• If priority timer times out, switch to next priority and start priority timer.

• If demand satisﬁ ed, go to postpurge.

Blower

OFF

• Demand satisﬁ ed (temperature reaches target temperature or limit setting).

• Gas valve off.

• Blower to ignition speed for postpurge.

• Return to standby after purge.

Maintenance

• Display ﬂ ashes BLUE, toggling between graphic screen and maintenance screen (occurs if maintenance schedule

timer times out).

• Will show during standby only.

• Boiler operates as normal.

Error/fault

• Display turns RED due to error or limit event.

• Flashing display means lockout condition.

WWSD

• Warm weather shutdown - the boiler will not be allowed to ﬁ re on space heating if the outside temperature is

greater than the WWSD setting.

• DHW operation is not affected by WWSD.

Control operation

Part number 550-100-214/1220

– 42 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Control operation (continued)

Figure 19 Evergreen

control display screens and typical navigation – Advanced mode, multiple boilers

Part number 550-100-214/1220

– 43 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Menus and Items Default setting Range/options

BOILER SETTINGS Menu

( page 47 )

• BOILER MODEL

Factory set Evergreen

models available

• CONTROL TYPE

Single Single, Master or Shadow

• HIGH ALTITUDE

NO Yes or No

• LP GAS

No Yes or No

• ODT SENSOR EXEMPT

No Yes or No

• HIGH LIMIT TEMP

200°F 50 to 200°F

• WWSD TEMP

70°F OFF, 50–100°F

• ADJUST OUTDOOR

0°F -10 to +10°F

• CIRCULATOR EXERCISING

ALL ON ON or OFF for each circulator

• FREEZE PROTECT CIRCS

ONLY BOILER CIRCULATOR ON ON or OFF for each circulator

• RESET FACTORY DEFAULT

— —

PRIORITY menus

( page 52 ) Default setting Range/options

•

INPUTS ASSIGNED

Varies by priority 1, 2, 3

• SYSTEM TYPE

Varies by priority See Figure 21, page 45 for choices

• TARGET MOD SENSOR

Varies System Supply or Boiler Out

• TARGET ADJUST

Varies None, 0–10V, or ODT

• SUPPLY MAX

Varies 60 to 190°F

• SUPPLY MIN

Varies by system type 60 to 190°F

• OD RESET MAX

70°F 50 to 100°F

• OD RESET MIN

0°F -20 to 50°F

• VOLTS FOR MAX

10V 5V-10V

• VOLTS FOR MIN

0V 0V-4.9V

• BOOST TIME

OFF OFF, 1 to 240 minutes

• SYSTEM OFF DIFF

Varies (5 or 10°F) 2 to 15°F

• SYSTEM ON DIFF

10°F 2 to 15°F

• MAX BLR TEMP

Equals SUPPLY MAX 60 to 190°F

• ADD BLR DIFF

5°F 2 to 10°F

• DROP BLR DIFF

5°F 2 to 10°F

• MOD DELAY TIME

2 minutes 1 to 15 minutes

• STABILIZE TIME

5 minutes 3 to 30 minutes

• ADD DELAY TIMER

60 seconds 30 to 240 seconds

• DROP DELAY TIMER

60 seconds 30 to 240 seconds

• BOILER ON DIFF

5°F 2 to 20°F

• BOILER OFF DIFF

5°F 2 to 10°F

• MAX ON TIME

30 minutes OFF, 1 to 240 minutes

• MIN ON TIME

15 minutes OFF, 1 to 240 minutes

• RUN BOILER PUMP

Varies by system YES or NO

• RUN AUX PUMP/OUTPUT

Varies by system YES or NO

• PRE PUMP

OFF OFF, 1 to 240 seconds

• POST PUMP

30 seconds OFF, 1 to 240 seconds

• MAX RATE

(Local priorities only)

96% 100% to 21%

Figure 20 Evergreen

control settings available in ADVANCED MODE (see Boiler Manual for BASIC MODE settings)

See detailed information about controls settings (parameters) on the following pages.

Available control settings – Advance Mode

Part number 550-100-214/1220

– 44 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Menus and Items Default setting Range/options

•

MIN RATE

20% 20% to 99%

• MAX SYS MBH

(Network priorities only)

AUTO AUTO or 100 to 32,000 MBTU’s

• MIN BOILERS (Network priorities only)

1 1 to 8

• ACTIVATE CONTACT

(ADDITIONAL HEAT DEMAND)

OFF OFF, 1st, or 2nd

• RESPONSE TIME

(ADDITIONAL HEAT DEMAND)

OFF OFF, 1 to 240 minutes

NETWORK SETTINGS

( page 48 ) Default setting Range/options

•

CONTROL TYPE

— Single, Master, Shadow

• BOILER ADDRESS

— 1 to 8

• NET MAX ON TIME

30 Off, 1 to 240

• NET MIN ON TIME

15 Off, 1 to 240

• MAX RATE ON NET

96% 100% to 21%

• MIN RATE ON NET

20% 20% to 99%

ROTATION AND SEQUENCE

( page 49 ) Default setting Range/options

•

SEQUENCE TYPE

Smart Smart, Parallel, Series

• BASERATE HIGH

Auto Auto, 20% to 100%

• BASERATE LOW

20% 20% to 100%

• LEAD BOILER ROTATE

Total Hours

Off, By Boiler, Total Hours, Incremental Hours

• ROTATE FREQ

1-30, 60, 90, 120, 150, 180, 210, 240, 270,

300, 330, 365

• FORCE LEAD ROTATE

Ye s Yes, or No

• CURRENT ORDER

— Shows current rotation sequence

ASSIGN INPUTS

( page 56 ) Default setting Range/options

•

INPUT 1

Single boiler – PRIORITY 2

Master or shadow boiler – NETWORK 2

NONE or

Single boiler – PRIORITY 1, 2, or 3

Master or shadow boiler –

NETWORK PRIORITY 1 or 2 or

LOCAL PRIORITY 1 or 2

• INPUT 2

Single boiler – PRIORITY 2

Master or shadow boiler – NETWORK 2

• INPUT 3

Single boiler – PRIORITY 2

Master or shadow boiler – NETWORK 2

Diagnostics

(see Boiler Manual)

MAINTENANCE ( page 58 )

SET DATE AND TIME ( page 58 )

Figure 20 Evergreen

control settings available in ADVANCED MODE, continued

Available control settings – Advance Mode (continued)

See detailed information about controls settings (parameters) on the following pages.

Part number 550-100-214/1220

– 45 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Figure 21 System types available (each option provides factory presets for operating parameters)

System Type

8-Character

Abbreviation

3-Character

Abbreviation

Supply

Max °F

Max Blr

Temp °F)

OD Reset

Min °F

Supply

Min °F

OD Reset

Max °F

Run

Boiler

Pump

Run System

Pump/Aux

Fan-coil FAN-COIL

FCL 180 180 0 140 70 YES YES

Finned Tube Baseboard FIN BASE

FTB 180 180 0 130 70 YES YES

Cast Iron Baseboard IRONBASE

CIB 180 180 0 120 70 YES YES

Cast Iron Radiators RADIATOR

CIR 180 180 0 120 70 YES YES

Radiant - slab on grade RAD SLAB

RSG 120 120 0 80 70 YES YES

Radiant - thin slab RAD SLAB

RTS 140 140 0 80 70 YES YES

Radiant - below ﬂ oor

(staple up)

RADFLOOR

RSU 160 160 0 90 70 YES YES

Radiant - above ﬂ oor

(sleeper system)

RADFLOOR

RAF 140 140 0 90 70 YES YES

Domestic Hot Water DOMESTIC

DHW 180 180 N/A N/A N/A NO NO

Custom (user deﬁ ned)

XXXXXXXX

(user input)

ﬁ rst three

of user

input

180 180 0 70 70 YES YES

SYSTEM TYPE presets

Part number 550-100-214/1220

– 46 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

CONTRACTOR menus

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See the following pages for explanations of control setting

options.

MENU ITEM PURPOSE

information

USER MODE

• Set this to ADVANCED to access single boiler advanced

settings. ADVANCED mode is automatic if configuring

network boilers.

BOILER SETTINGS

• Set/change boiler model, control type, high

altitude setting, gas type (L.P.), ODT sen-

sor requirement, manual reset, high limit

and WWSD temperature settings, outdoor

sensor temp adjustment, circulator exercis-

ing, freeze protection setup, and restore to

factory default option.

See page 47

PRIORITY 1

(LOCAL PRIORITY 1)

• These settings control operating tem-

peratures and behaviors for inputs that are

assigned to PRIORITY 1.

See page 52

PRIORITY 2

(NETWORK PRIORITY 1

or LOCAL PRIORITY 2)

• These settings control operating tem-

peratures and behaviors for inputs that are

assigned to PRIORITY 2.

See page 52

PRIORITY 3

(NETWORK PRIORITY 2

or LOCAL PRIORITY 3)

• These settings control operating tem-

peratures and behaviors for inputs that are

assigned to PRIORITY 3.

See page 52

PRIORITY 4

(LOCAL PRIORITY 2)

• Appears only on multiple boiler systems.

• These settings control operating tem-

peratures and behaviors for inputs that are

assigned to PRIORITY 4.

See page 52

ASSIGN INPUTS

• These settings assign Priority 1, 2, 3 or 4 to

each of the three inputs to the Evergreen

control.

See page 56

DIAGNOSTICS

• View error counters and historical informa-

tion including previous lockouts.

• View current status of temperatures, inputs,

outputs and runtimes; View network infor-

mation; View MODBUS communication

info; View software versions; Access manual

test mode screen; Initiate manual reset.

See

Boiler

Manual

MAINTENANCE

INFO

• Used to set contractor contact information,

boiler information and maintenance dates.

See page 58

SET TIME & DATE

• Use to set date and time — important since

fault occurrences are date/time stamped.

See page 58

MODBUS

SETTINGS

• Use to enter Modbus communications

information (enable/disable, range, parity

and stop bits, and baud rate).

• For Modbus addressing information, see

EVG Modbus Supplement.

See

EVG MODBUS

Supplement

Figure 22 Evergreen

control menu access — accessing CONTRACTOR men

Screens shown above are typical only.

Actual screens depend on control

settings chosen.

Part number 550-100-214/1220

– 47 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

BOILER SETTINGS menu

MENU ITEM DESCRIPTION

BOILER MODEL

•

MUST be set to correct model.

• Check the boiler model against the model listed on the boil-

er’s rating plate. Change the selection to the correct model if

not. Also verify the model number on the Evergreen

display

at power-up. Failure to correct would result in severe per-

sonal injury, death or substantial property damage.

CONTROL TYPE

• Select single, master or shadow.

HIGH ALTITUDE

•

If the boiler is installed at an altitude above 5500 feet,

select YES for high altitude. The control will automatically adjust

ﬁ ring rates (blower speeds) to compensate for altitude. Altitude

MUST be set correctly to avoid risk of severe personal injury, death

or substantial property damage.

LP GAS

•

MUST be correct — YES if LP Gas is used or NO

if natural gas is used. Follow screen instructions to change if

necessary.

ODT SENSOR

EXEMPT

• Select YES only if boiler is exempt from the requirement

for outdoor reset operation stipulated in Section 303 of the

2007 Energy Act. See information provided elsewhere in this

manual.

MANUAL RESET

HIGH LIMIT

TEMP

• If boiler outlet water temperature exceeds this temperature,

the Evergreen

control will shut down the boiler and enter

lockout. Changing this setting is NOT recommended.

WWSD TEMP

• WWSD stands for warm weather shutdown. It means the

boiler will not be allowed to ﬁ re if the outside temperature is

greater than the WWSD setting.

When the boiler is kept off because the outside temperature is

above WWSD, the graphic display will show WWSD, and the

boiler will remain in standby until the outside temperature

drops below WWSD temperature.

WWSD does not apply to DHW systems.

The outdoor sensor must be installed to use this function.

Any setting other than OFF will cause the control to look for

a sensor. It will display an error if a sensor is not detected.

ADJUST

OUTDOOR

• Use this setting to calibrate the outdoor sensor when needed

to compensate for variations in lead length or other factors

that could affect total resistance in sensor circuit.

CIRCULATOR

EXERCISING

• For each circulator, select whether you want the control to

automatically start the circulator and run for 10 seconds for

each 72-hour period of inactivity.

FREEZE

PROTECT

CIRCS

• This function automatically starts the circulators chosen if the

heat exchanger sensors detect a temperature less than 45°F. In

addition, the burner is turned on if temperature drops below

40°F. Circulators and burner turn off when the temperature

rises above 48°F.

RESET

FACTORY

DEFAULTS

• Use this function to restore all control settings to factory

default values — will require complete restart and setup of

control after resetting. Record information from the MAIN-

TENANCE screen and any history information that may be of

use in the future. ALL stored data is eliminated when reset to

defaults, except for boiler model number.

Figure 23 Evergreen

ADVANCED mode BOILER SETTINGS options (see Figure 22, page 46 to access CONTRACTOR menu)

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

Screens shown above are typical only.

Actual screens depend on control

settings chosen.

Figure 24 Evergreen

NETWORK SETTINGS menu (see Figure 22, page 46 to access CONTRACTOR menu)

Part number 550-100-214/1220

– 48 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

NETWORK SETTINGS menu

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

MENU ITEM PURPOSE

information

CONTROL TYPE

• SINGLE, MASTER or SHADOW

• If another boiler has already been selected

as master, a notice window will appear if

MASTER is selected here.

None

BOILER

ADDRESS

• Network address of boiler (can be changed

here if desired, but every boiler must have a

unique address).

None

NET MAX ON

TIME

• Maximum amount of time this boiler will

operate on a network call for heat from the

Master boiler before switching to a LOCAL

PRIORITY 2 demand (if no LOCAL PRIOR-

ITY 1 demand is present).

None

NET MIN ON TIME

• Minimum amount of time this boiler will

operate on a network call for heat from the

Master boiler before switching to a LOCAL

PRIORITY 1 demand.

None

MAX RATE ON

NET

• Maximum rate the boiler will run at during

NETWORK calls.

None

MIN RATE ON

NET

• Minimum rate the boiler will run at during

NETWORK calls.

None

ROTATION &

SEQUENCE

• Select the method by which the boilers will

turn on and off.

• Choose between SMART, PARALLEL, or

SERIES. (This setting is only accessible on

Master boiler.)

See

Figure 26, page 50

for explanation of

sequencing options

Screens shown above are typical only.

Actual screens depend on control

settings chosen.

MENU ITEM PURPOSE

SEQUENCE TYPE

• Select the method of which the boilers will turn on and

off. Choose between SERIES, PARALLEL, or SMART.

SERIES sequencing allows each boiler to reach full input

before bringing on the next boiler in sequence. PARALLEL

sequencing uses a limiter, called BASERATE HIGH, to limit

the firing rate before adding additional boilers. SMART

sequencing (factory default setting) uses a low ﬁ ring rate

setting, called BASERATE LOW, to keep boilers at a low ﬁ ring

rate, bringing on additional boilers at reduced rate until all

boilers are on if necessary. Boilers are then allowed to modulate

together as high as necessary to meet demand.

BASERATE HIGH

• This sets highest modulation rate before turning on the next

boiler.

• This is read-only if in SMART mode.

BASERATE LOW

• This sets rate that the next boiler in sequence is going to turn

on when called.

• This is only visible if the Sequence Type is selected as SMART.

LEAD BOILER

ROTATE

• Choose how to rotate the boiler sequencing. Choose either

OFF, BY BOILER ID, TOTAL HOURS, or INCREMENTAL

HOURS. Firing sequence is changed every rotation period

(ROTATE FREQ – see setting explanation below).

• OFF — Master boiler is always the ﬁ rst to ﬁ re. Others ﬁ re in

the order of their network ID.

• BY BOILER ID — Lead boiler toggles in the sequence of net-

work ID numbers (changes from boiler number 1 to number

2, then boiler number 2 to number 3, etc.).

• TOTAL HOURS — The boiler with the most lifetime oper-

ating hours is moved to the last in the ﬁ ring sequence. The

boiler with the least lifetime operating hours is made ﬁ rst in

the sequence. Others are ordered by their respective lifetime

operating hours.

• INCREMENTAL HOURS — Firing sequence is based on

the operating time during the previous rotation period.

The boiler with the least operating time is started ﬁ rst; the

boiler with the most operating time is started last; all others

are started in order of their operating time.

ROTATE FREQ

• Recalculates the boiler order every ## days based on LEAD

BOILER ROTATE setting.

FORCE LEAD

ROTATE

• Select YES or NO. When the rotation frequency timer expires

and the new order is calculated, this forces off the boiler low-

est in the sequence. Then the boiler highest in the sequence

ﬁ res to replace it.

Current Order

• Shows the current ﬁ ring order of the boilers on the network.

• This list updates based on how many boilers are detected and

the order of sequence based on the above settings.

• Sequence is shown as left-most boiler is ﬁ rst to turn on. Right-

most boilers are the ﬁ rst to turn off.

Figure 25 Evergreen

NETWORK SETTINGS menu (see Figure 22, page 46 to access CONTRACTOR menu)

Part number 550-100-214/1220

– 49 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

ROTATION AND SEQUENCE

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

Screens shown above are typical only.

Actual screens depend on control

settings chosen.

Figure 26 Evergreen

sequencing options — SMART, PARALLEL or SERIES (examples shown for 3-boiler network)

SERIES Sequencing PARALLEL Sequencing SMART Sequencing

Higher Part-Load Efﬁ ciency

Quicker Boiler Response Time

STAGE 1 – Lead boiler modulates up to a maximum of 100% be-

fore turning on the next boiler in the sequence. The STABILIZE

TIME allows time for the boilers to modulate to meet system

demand before turning on additional boilers.

STAGE 1 – Lead boiler modulates up to a maximum of Base

Rate High before turning on the next boiler in the sequence.

The STABILIZE TIME allows time for the boilers to modulate

to meet system demand before turning on additional boilers.

STAGE 1 – Lead boiler modulates up to a low ﬁ ring rate before

turning on the next boiler in the sequence. The STABILIZE TIME

allows time for the boilers to modulate to meet system demand

before turning on additional boilers.

STAGE 2 – Boiler #2 in sequence ignites and both boilers

modulate to so their combined energy output matches the energy

output of Boiler #1 at 100%. After a short MOD DELAY TIME,

the boilers will be released to modulate.

STAGE 2 – Boiler #2 in sequence ignites and both boilers

modulate to so their combined energy output matches the energy

output of Boiler #1 at Base Rate High. After a short MOD DELAY

TIME, the boilers will be released to modulate.

STAGE 2 – Boiler #2 in sequence ignites and both boilers modu-

late to BASE RATE LOW. After a short MOD DELAY TIME, the

boilers will be released to modulate.

STAGE 3 – Both boilers modulate up to a maximum of 100% be-

fore turning on the next boiler in the sequence. The STABILIZE

TIME allows time for the boilers to modulate to meet system

demand before turning on additional boilers.

STAGE 3 – Both boilers modulate up to a maximum of Base

Rate High before turning on the next boiler in the sequence.

The STABILIZE TIME allows time for the boilers to modulate

to meet system demand before turning on additional boilers.

STAGE 3 – Both boilers modulate up to a low ﬁ ring rate before

turning on the next boiler in the sequence. The STABILIZE TIME

allows time for the boilers to modulate to meet system demand

before turning on additional boilers.

STAGE 4 – Boiler #3 in sequence ignites and then all boilers

modulate to so their combined energy output matches the energy

output of Boilers #1 and #2 at 100%. After a short MOD DELAY

TIME, the boilers will be released to modulate.

STAGE 4 – Boiler #3 in sequence ignites and then all boilers

modulate to so their combined energy output matches the energy

output of Boilers #1 and #2 at Base Rate High. After a short MOD

DELAY TIME, the boilers will be released to modulate.

STAGE 4 – Boiler #3 in sequence ignites and then all boilers

modulate to BASE RATE LOW. After a short MOD DELAY TIME,

the boilers will be released to modulate.

STAGE 5 – After all available boilers are ﬁ ring, boilers are release

to modulate up to 100% of rate.

STAGE 5 – After all available boilers are ﬁ ring, boilers are release

to modulate up to 100% of rate.

STAGE 5 – After all available boilers are ﬁ ring, boilers are release

to modulate up to 100% of rate.

Part number 550-100-214/1220

– 50 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

ROTATION AND SEQUENCE (continued)

Figure 27 Boiler sequencing — adding and dropping boilers

Part number 550-100-214/1220

– 51 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

ROTATION AND SEQUENCE (continued)

Figure 28 Evergreen

Network Boiler PRIORITY menus (access menus from CONTRACTOR menu

Local

Priority 1

Local

Priority 2

Network

Priority 1

Network

Priority 2

MENU ITEM DESCRIPTION

x x

INPUTS ASSIGNED

• List of inputs assigned to this priority/system on the local boiler (appears as 1, 2, 3).

x x x x

SYSTEM TYPE

• Select the system type for this PRIORITY, based on the heating terminal units in the

system. Use the CUSTOM selection to set the control for a different system type. The

factory preset values for SUPPLY MAX, SUPPLY MIN, OD RESET MAX and OD RESET

MIN are chosen based on the normal best setting for the terminal units. See page 45 .

x x

TARGET MOD

SENSOR

• Read only — shows whether boiler modulates based on System Supply sensor (network

priority) or Boiler Outlet sensor (local priority).

x x x x

TARGET ADJUST

• Select how target temperature is calculated by control: NONE (no reset, ﬁ xed target

temperature), 0–10V (target temperature based on analog input from remote source),

ODT (outdoor reset operation).

x x x x

SUPPLY MAX

• Set SUPPLY MAX to the required supply water temperature for the system at design

maximum heat loss (typically 180°F for ﬁ nned tube baseboard on new installations.)

x x x x

SUPPLY MIN

• SUPPLY MIN should equal the desired minimum supply water temperature for the

system. This line will not show if Target Adjust is selected as NONE.

x x x x

OD RESET MAX

• Appears if TARGET ADJUST is set to ODT. Outdoor temperature at which the target

temperature reaches its minimum value – usually set at the balance point temperature

for the building. (Does not appear if 0–10V or NONE is selected for Target Adjust.)

x x x x

OD RESET MIN

• Appears if TARGET ADJUST is set to ODT. Outdoor temperature at which the target

temperature reaches its maximum value – usually set at the outdoor design temperature

for the installation. (Does not appear if 0–10V or NONE is selected for Target Adjust.)

x x x x

VOLTS FOR MAX

• Appears if 0–10V is selected for Target Adjust. Set the voltage at which SUPPLY MAX

temperature is required.

x x x x

VOLTS FOR MIN

• Appears if 0–10V is selected for Target Adjust. Set the voltage at which SUPPLY MIN

temperature is required. For voltages between Min and Max, the target temperature

will be adjusted on a linear curve.

x x x x

BOOST TIME

• Every time the call for heat surpasses this duration of time the target temp will increase

(boost) up 10°F to a maximum temperature of SUPPLY MAX.

x x

SYSTEM OFF DIFF

• This is the amount the temperature must rise above system target to turn the boiler(s)

OFF.

x x

SYSTEM ON DIFF

• This is the amount the temperature must drop below system target to begin network

modulation routine. (This line may NOT appear, depending on TARGET ADJUST

setting.)

x x

ADD BLR DIFF

• If the system supply temperature has not reached target minus this differential at the

end of the STABILIZE TIME, the control will turn on the next available boiler in the

boiler ﬁ ring order.

x x

DROP BLR DIFF

• If the system supply temperature rises to more than target plus this differential, the

control will turn off the last ﬁ ring boiler in the boiler ﬁ ring order. Drop Delay Timer

limits how quickly multiple boilers drop off.

x x

MOD DELAY TIME

• The time allowed for the boilers to adjust to the requested ﬁ ring rate before beginning

Stabilize Time and resuming modulation.

x x

STABILIZE TIME

• The time allowed for all boilers actively heating a network priority to reach target modula-

tion rate requested by the master. If the timer expires and system temperature is less than

target – ADD BLR DIFF, the master will add the next available boiler. If there are no more

available boilers, the master will freely modulate the boilers to satisfy the heat demand.

x x

ADD DELAY TIMER

• Timer starts when the modulation rate of all boilers actively heating a network priority

are at BASE RATE HIGH, MAX RATE FOR NET, or are being self-limited. If the timer

expires and system temperature is less than target – ADD BLR DIFF, the master will add

the next available boiler.

DROP DELAY TIMER

• Minimum time before a boiler will be dropped off. This timer only begins after the ﬁ rst

boiler has been dropped. It applies as each additional ﬁ ring boiler is dropped.

Part number 550-100-214/1220

– 52 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Network Boiler PRIORITY menus

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

Local

Priority 1

Local

Priority 2

Network

Priority 1

Network

Priority 2

MENU ITEM DESCRIPTION

x x

MAX BLR TEMP

• If the boiler outlet temperature approaches [MAX BOILER TEMP – BOILER ON DIFF]

before the system supply temperature reaches its target, the control will modulate the

boiler based on the boiler outlet temperature. The boiler will cycle and modulate based

on the boiler ON and OFF differential settings. (This line does NOT appear if Target

Mod Sensor is set to Boiler Out).

x x x x

BOILER ON DIFF

• This is the amount the temperature must drop below target (or Boiler Max) to turn

the boiler ON.

x x x x

BOILER OFF DIFF

• This is the amount the temperature must rise above target (or Boiler Max) to turn the

boiler OFF.

x x

MAX ON TIME

• Maximum time boiler will run on this priority if it is being asked to run on another

priority. Will rotate among all priorities its being asked to run. Network boilers are also

controlled by NET MAX ON TIME (see Figure 24, page 48 ).

• NETWORK PRIORITY 1 only — Maximum time master will operate the network on

NETWORK PRIORITY 1 if NETWORK PRIORITY 2 is calling for heat.

•

When the master boiler detects a local call for heat from any boiler that is

currently operating for a network demand, the master control will allow that boiler

to switch to its local priority and replace the lost network energy of that boiler ap-

propriately.

x x

MIN ON TIME

• Minimum time the boiler will run on an existing priority before switching to a lower

priority, or back to an existing higher priority. If a new higher priority is called during

MIN ON TIME, the boiler will immediately switch to actively heat the higher priority.

Network boilers are also controlled by NET MIN ON TIME (see Figure 24, page 48 ).

• NETWORK PRIORITY 2 only — Minimum time master will operate on a network

priority 2 if network priority 1 is calling for heat.

x x

RUN BOILER PUMP

• Selects whether the Boiler Pump is turned on while running on this priority.

x x x x

RUN AUX PUMP/

OUTPUT

• When set to YES, input/output pairs on any network boiler assigned as AUX PUMP/

OUPUT -> ANY TT INPUT BY ITS PRIORITY, will activate. Set this to NO for priori-

ties that do not need this AUX PUMP/OUTPUT to be active.

x x x x

PRE PUMP

• Time associated PUMPS and AUX PUMP/OUTPUT are run before entering prepurge.

x x x x

POST PUMP

• Time associated PUMPS and AUX PUMP/OUTPUT are run after the call for heat has

ended and before switching to another call for heat.

MAX SYS MBH

• Limits the energy allowed by the boiler network to be put into this priority’s system.

The default is set to AUTO (the sum of all network boiler sizes). If the total size of the

boiler network is too large for a system, adjust MAX SYS MBH lower to the appropriate

energy. MAX SYS MBH can be set greater than AUTO if more Evergreen

boiler are

planned to be installed to the same network. This setting can be adjusted in 100 MBH

increments (100 MBH = 100,000 BTU/hours).

MIN BOILERS

• The Master turns on this many boilers in the network on an initial call for heat in order to

avoid delays due to accumulative wait times between boilers. When switching to another

network priority, MIN BOILERS is re-evaluated based on the other priority’s setting.

x x

MAX RATE

• Maximum rate this boiler will modulate up to while running on this priority.

x x

MIN RATE

• Minimum rate this boiler will modulate down to while running on this priority.

x x x x

ADD’L HEAT

DEMAND

ACTIVATE CONTACT

• If this is set to 1st: Immediately on a call for heat, the heat demand contacts close and

the RESPONSE TIME timer starts. If the call for heat from this demand is still active

at the end of the Response Time and the system has not reached [Target Temp - System

On Diff], the boiler system will start. If the system temperature is within this range,

the boiler system will not start unless the temperature drops below this value. The add'l

heat demand contact opens when the heat demand turns off.

• If this is set to 2nd: The boiler system starts immediately on a call for heat and starts the

RESPONSE TIME timer. If the call for heat is still active when the RESPONSE TIME

expires, the boiler will close its additional heat demand contact.

• Timers reset when priorities are switched.

• NETWORK PRIORITY 1 or 2 — The additional heat demand must be wired to the

master boiler.

• LOCAL PRIORITY 1 or 2 — The additional heat demand must be wired to the indi-

vidual boiler. A master boiler cannot use additional heat demand on a local priority.

x x x x

RESPONSE TIME

• Time to wait for system to respond before taking the Activate Contact action. If ACTI-

VATE CONTACT is OFF, this line does not appear.

Figure 28 Evergreen

PRIORITY menus, continued

Part number 550-100-214/1220

– 53 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Network Boiler PRIORITY menus (continued)

Figure 29 Evergreen

single boiler PRIORITY menus (access menus from CONTRACTOR menu

Priority 1

Priority 2

Priority 3

MENU ITEM DESCRIPTION

x x x

INPUTS ASSIGNED

• List of inputs assigned to this priority/system on the local boiler (appears as 1, 2, 3).

x x x

SYSTEM TYPE

• Select the system type for this PRIORITY, based on the heating terminal units in the system.

Use the CUSTOM selection to set the control for a different system type. The factory preset

values for SUPPLY MAX, SUPPLY MIN, OD RESET MAX and OD RESET MIN are chosen

based on the normal best setting for the terminal units. See page 45 .

x x x

TARGET MOD

SENSOR

• Select whether boiler modulates based on System Supply sensor or Boiler Outlet sensor.

x x x

TARGET ADJUST

• Select how target temperature is calculated by control: NONE (no reset, ﬁ xed target tempera-

ture), 0–10VDC (target temperature based on analog input from remote source), ODT (outdoor

reset operation). This setting cannot be selected if system type is DHW.

x x x

SUPPLY MAX

• Set SUPPLY MAX to the required supply water temperature for the system at design maximum

heat loss (typically 180°F for ﬁ nned tube baseboard on new installations.)

x x x

SUPPLY MIN

• SUPPLY MIN should equal the desired minimum supply water temperature for the system.

This line will not show if Target Adjust is selected as NONE.

x x x

OD RESET MAX

• Appears if TARGET ADJUST is set to ODT. Outdoor temperature at which the target tempera-

ture reaches its minimum value – usually set at the balance point temperature for the building.

x x x

OD RESET MIN

• Appears if TARGET ADJUST is set to ODT. Outdoor temperature at which the target tem-

perature reaches its maximum value – usually set at the outdoor design temperature for the

installation.

x x x

VOLTS FOR MAX

• Appears if 0–10V is selected for Target Adjust. Set the voltage at which SUPPLY MAX tem-

perature is required.

x x x

VOLTS FOR MIN

• Appears if 0–10V is selected for Target Adjust. Set the voltage at which SUPPLY MIN tempera-

ture is required. For voltages between Min and Max, the target temperature will be adjusted

on a linear curve.

x x x

BOOST TIME

• Every time the call for heat surpasses this duration of time the target temp will increase (boost)

up 10°F to a maximum temperature of SUPPLY MAX.

x x x

SYSTEM OFF DIFF

• This is the amount the temperature must rise above system target to turn the boiler OFF. (This

line does NOT appear if Target Mod Sensor is set to Boiler Out).

x x x

SYSTEM ON DIFF

• This is the amount the temperature must drop below system target to turn the boiler ON.

(This line does NOT appear if Target Mod Sensor is set to Boiler Out).

Part number 550-100-214/1220

– 54 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Single Boiler PRIORITY menus

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

Priority 1

Priority 2

Priority 3

MENU ITEM DESCRIPTION

x x x

MAX BLR TEMP

• If the boiler outlet temperature approaches [MAX BOILER TEMP – BOILER ON DIFF] before

the system supply temperature reaches its target, the control will modulate the boiler based on

the boiler outlet temperature. The boiler will cycle and modulate based on the boiler ON and

OFF differential settings. (This line does NOT appear if Target Mod Sensor is set to Boiler Out).

x x x

BOILER ON DIFF

• This is the amount the temperature must drop below target to turn the boiler ON.

x x x

BOILER OFF DIFF

• This is the amount the temperature must rise above target to turn the boiler OFF.

x x

MAX ON TIME

• Maximum time this boiler will run on this priority if it is being asked to run on another prior-

ity. Will rotate among all priorities its being asked to run.

x x

MIN ON TIME

• Minimum time the boiler will run on an existing priority before switching to a lower priority,

or back to an existing higher priority. If a new higher priority is called during MIN ON TIME,

the boiler will immediately switch to actively heat the higher priority.

x x x

RUN BOILER PUMP

• Selects whether the Boiler Pump is turned on while running on this call for heat.

x x x

RUN AUX PUMP/

OUTPUT

• When set to YES, any input/output pairs assigned as AUX PUMP/OUPUT -> ANY TT INPUT

BY ITS PRIORITY, will activate. Set this to NO for priorities that do not need this AUX PUMP/

OUTPUT to be active.

x x x

PRE PUMP

• Time associated PUMPS and AUX PUMP/OUTPUT are run before entering prepurge.

x x x

POST PUMP

• Time associated PUMPS and AUX PUMP/OUTPUT are run after the call for heat has ended

and before switching to another call for heat.

x x x

MAX RATE

• Maximum rate this boiler will modulate up to while running on this priority.

x x x

MIN RATE

• Minimum rate this boiler will modulate down to while running on this priority.

x x x

ADD’L HEAT

DEMAND

ACTIVATE CONTACT

• If this is set to 1st: Immediately on a call for heat, the heat demand contacts close and the

RESPONSE TIME timer starts. If the call for heat from this demand is still active at the end

of the Response Time and the system has not reached [Target Temp – System On Diff], the

boiler system will start. If the system temperature is within this range, the boiler system will

not start unless the temperature drops below this value. The add'l heat demand contact opens

when the heat demand turns off.

• If this is set to 2nd: The boiler system starts immediately on a call for heat and starts the RE-

SPONSE TIME timer. If the call for heat is still active when the RESPONSE TIME expires, the

boiler will close its additional heat demand contact.

x x x

RESPONSE TIME

• Time to wait for system to respond before taking the Activate Contact action. If ACTIVATE

CONTACT is OFF, this line does not appear.

Figure 29 Evergreen

single boiler PRIORITY menus, continued

Part number 550-100-214/1220

– 55 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Single Boiler PRIORITY menus (continued)

Part number 550-100-214/1220

– 56 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

ITEM

PURPOSE

Overview

• There are three inputs/outputs available on

each boiler. This menu allows assignment

of which inputs/outputs operate which

priority/system.

INPUT 1

INPUT 2

INPUT 3

• See “EVG control Priorities & Input/

Outputs” on page 4 for an explanation of

priorities, inputs and outputs.

• Priority settings are adjustable. See page 52

through page 55 for priority options.

• The Assign Inputs menu is for designating

priorities to the correct inputs according to

the system installed.

• Multiple inputs can use the same priority.

• The Source line designates Input 1 as either

thermostat controlled or 0–10V controlled

for MODULATION. (On Master/Shadow

systems, this line is not present and Input

1 is predetermined as a thermostat-con-

trolled input.)

• When choosing 0–10V as the Source, a

NOTICE screen will pop up explaining

the use of the 0–10V input. Press SAVE to

use this option, or press cancel to return

the input to TT1.

AUX PUMP/

OUTPUT

• The AUX PUMP/OUTPUT function en-

ables an output to turn on in a variety of

selectable conditions.

• See page 57 for explanations and recom-

mended applications.

• In network boiler applications, outputs

assigned AUX PUMP/OUTPUT are con-

trolled by the master boiler, based on the

input/output and blower behaviors of all

boilers on the network.

Figure 30 Evergreen

Assign Inputs menu (see Figure 22, page 46 to access CONTRACTOR menu)

ASSIGN INPUTS menu

Boiler Model, Altitude and Fuel Type are criti-

cal settings.

Failure to set correctly could result in

severe personal injury, death or substantial property

damage.

1. Access contractor menus by pressing and holding the UP and

DOWN arrow keys at the same time for 7 seconds.

2. See Figure 22, page 46 for the screen sequences up to the

CONTRACTOR menu.

Screens shown here are typical only.

Actual screens depend on control settings

chosen.

Figure 31

AUX PUMP/ OUTPUT

operation (accessed in ASSIGN INPUTS menu – see page 56 )

Option Activation conditions Suggested uses

ALWAYS ON

• Output is always energized whenever the control is powered.

• Hot loop for seasonal boilers that are manually

shut down at end of season and started up at

start of heating season.

EXTERNAL

SWITCH

• The output is energized on closure of an external switch wired to this

input and is de-energized when the external switch opens.

• Hot loop for boilers whose CH is manually

shut down at end of season and started up at

start of heating season, but remain available for

local calls (DHW, etc.).

OUTDOOR

BELOW WWSD

• This output is energized only when outdoor temperature is below the

WWSD setting (see BOILER SETTINGS menu, Figure 23, page 47 ).

• This setting is non-selectable if WWSD is set to OFF or ODT is not

connected at initial boiler power. If Outdoor Below WWSD is already

chosen and WWSD is later set to OFF, Outdoor Below WWSD will

behave as Always On.

• Hot loop for boilers whose CH is automati-

cally shut down based on outdoor temperature

(inferred heat loss), but remain on for local

calls (DHW, etc.).

ANY TT INPUT

• The assigned output is energized if there is an input closure on any of

the network boilers.

• The assigned output will de-energize once there are; no input closures

on any of the network boilers, post-purge has ﬁ nished, and post-pump

time has expired.

• If the closed input is conﬁ gured for a heat demand, its output will de-

energize after post-purge and post-pump.

• Energize a system pump relay if pump must

run during all heating calls.

ANY TT INPUT

BY ITS PRIORITY

SETTINGS

• The assigned output is energized:

• If there is an input closure on any of the network boilers.

AND . . .

• RUN AUX PUMP/OUTPUT is set to YES for the priority

assigned to the closed input.

• The assigned output will de-energize once there are; no input closures

on any of the network boilers, post-purge has ﬁ nished, and post-pump

time has expired.

• Energize a system pump relay if pump must

run only on some heat calls (such as systems

with locally-connected DHW heating).

ANY BURNER

DEMAND

• The assigned output is energized when any boiler on the network

receives a call for heat and starts to pre-purge.

• The assigned output is de-energized once all burners are off and post-

purge is complete.

• Use for interlocking with combustion air

damper, ﬂ ow switch, etc.

Figure 32 AUX PUMP/ OUTPUT operation — start, run and stop, based on boiler status

Option

Standby

Closed

Pre-Pump

Pre-

Purge

Burner

Running

Post-

Purge

Post-

Pump

Standby

Comments

ANY TT INPUT

ANY TT INPUT BY ITS

PRIORITY SETTINGS

off

• See Figure 31 for explanation of

differences between the ANY TT

INPUT options.

ANY BURNER DEMAND

off off off

off off

AUX PUMP/OUTPUT options

Part number 550-100-214/1220

– 57 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

MAINTENANCE, DATE AND TIME menus

Figure 33 MAINTENANCE, DATE AND TIME menus — navigation (see Figure 19, page 42 for access information)

Part number 550-100-214/1220

– 58 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

MAINTENANCE INFO

1. Use this section to enter contractor’s information, CP number, install date and to enter an automatic notice for maintenance

(default is 12 months). Because this shows on the display, it is an automatic means of notifying the homeowner of need for

scheduled maintenance by the technician. Select RESET REMINDER to reset for the next maintenance date.

SET TIME AND DATE

1. Enter current date and time. This allows correct maintenance reminder timing and provides date and time stamp for lockout

histories on ERROR screen in Diagnostic Menu.

Maintenance Info Comments

Name Contractor name to appear in maintenance reminders and during lockouts

Phone Contractor phone number

Model Displays the boiler model selected in the boiler setup

CP Number Enter the CP# of the boiler

Installed Enter the date the boiler was installed

Last Date Date automatically entered when Reset Reminder is chosen by contractor

Next Date Date automatically calculated when Reset Reminder is selected by contractor

Interval Settings Contractor selects maintenance reminder frequency based on service history

Reset Reminder Contractor selects this to update Last maintenance Date and Next Date. Homeowner uses this to ignore the reminder and update only the Next

Date.

Set Time and Date Comments

Ye a r Set year (homeowner or contractor)

Month Set month (homeowner or contractor)

Day Set day (homeowner or contractor)

Hour Set hour (homeowner or contractor)

Minute Set minute (homeowner or contractor)

Part number 550-100-214/1220

– 59 –

CONDENSING GAS BOILER — 110/155 Advanced Manual

Notes

CONDENSING GAS BOILER — 110/155 Advanced Manual

Weil-McLain EVERGREEN PRO EVG-155 Evergreen High Efficiency Gas Boiler

Product's Documents

Advanced Manual

Specifications

Weil-McLain EVERGREEN PRO EVG-155 Questions and Answers