Weil-McLain EVERGREEN PRO EVG-399 User Manual

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Part number 550-100-211/0122

– 58 –

(see wiring diagram, Figure 65, page 59)(continued)

M. 0–10 VDC Remote MODULATION input – OPTIONAL

TerminalBlockP15#5&#6(EVG control module, left side)

1. See illustration at right and Figure65,page59 for details.

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

INPUT2 and INPUT3 for other uses.

3. 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.

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

at right.

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

mon connection at terminal5.

5. Control setup:

a. Many options are available for conguring the control. e following is

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

b. Default is BASIC in the Contractor menu.

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

y Connect the DHW aquastat to INPUT2 or INPUT3 and assign the

input used to PRIORITY1.

y Verify that control settings are suitable for the application, change

if necessary.

d. Use PRIORITY2 for the system to be remote modulated.

y e factory default settings for this priority are best suited for space

heating.

y Assign INPUT1 to the priority chosen. Accept all defaults for IN-

PUT1 — no changes should be necessary during the WIZARD.

y Aer 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78 for ASSIGN INPUTS menu information.

6. Operation:

a. e boiler comes on at 0.9VDC and turns o at 0.8VDC. 1VDC = 10%

input. 10VDC = 100% input. ese voltage settings are not adjustable.

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

turned on and o. is output is a good choice to operate the system pump.

7. NOTE: e EVG control can be congured to use either 0–10VDC for target

operation (see previous section) or modulation,

butnotboth.

See Figure65,page59 for details.

N. 120VAC Power Receptacle

Locatedonboilerrightsidepanel

1. Electrical rating is 2.0amps max at 120VAC.

2. is receptacle can be used to plug in a condensate pump.

O. Multiple Boiler and BMS Connections – see ADVANCED Manual

TerminalStripsP4andP5onPump/CommBoard(control tray, left side)

1. e boiler control is capable of multiple boiler communication and control

of up to eight Evergreen

boilers in one installation.

2. e boiler control is also capable of BMS communication.

3. e boiler control is also capable ZoneStacking

Uses All boiler inputs, not just the rst and last boilers, up to 24 customiz-

able inputs across boiler network (3 per unit, maximum of 8 boilers on the

network).

4. See Evergreen

Advanced Manual for multiple boiler installation and setup

information.

See EVG Advanced Manual for details.

220 /29 9/3 00 /39 9 

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Weil-McLain EVERGREEN PRO EVG-399 Gas Boiler Evergreen High Efficiency Gas Boiler

User Manual - Page 58