Rheem PROP G40-50P RH HE EC3 H Professional Prestige Maximus User Manual

RESIDENTIAL RESIDENTIAL

SUPER HIGH EFFICIENCY SUPER HIGH EFFICIENCY

WATER HEATERWATER HEATER

USE & CARE MANUALUSE & CARE MANUAL

AP21831 Rev 02

DO NOT destroy this manual.

Please read carefully and keep in

a safe place for future reference

WARNING

If the information in these

instructions is not followed exactly,

a fire or explosion may result

causing property damage, personal

injury or death.

FOR YOUR SAFETY!

• DO NOT store or use gasoline,

other flammable vapors or liquids

or other combustible materials

in the vicinity of this or any other

appliance. Doing so may result in

a explosion or fire.

-WHAT TO DO IF YOU SMELL GAS

• DO NOT try to light any appliance.

• DO NOT touch any electrical

switch.

• DO NOT use any phone in your

home.

• Immediately call your gas

supplier from a neighbor's phone.

And follow the gas supplier's

instructions.

• If you cannot reach your gas

supplier, call the fire department.

• DO NOT return to your home until

authorized by the gas supplier or

fire department.

-ALWAYS REFER TO THIS MANUAL

• Installation and service must be

performed by a qualified installer,

service agency, or gas supplier.

Important Safety Information

General Safety Precautions �� 2–5

Product Information

Components Diagram ��6

Installation

Location ��7

Thermal Expansion ��8

Water Connections ��8

To Fill the Water Heater ��8

Gas Supply ��9

Leak Testing ��9

Condensate ��9

High Altitude ��10

Wiring ��11

Typical Installation ��11

Space Heating Connections ��12

Venting and Combustion Air Inlet �� 13 - 31

Check List ��32

Operation

Lighting Instructions ��33

Safety Precautions ��34

Safety

User Interface

Start Up �� 35

Temperature Adjustment ��35

Schedule Settings��36

Time/Date Settings ��36

WiFi Status ��37

Alarms and Service Alerts ��38

Maintenance

Routine Preventive Maintenance �� 39

Seasonal Operation ��39

Venting System �� 39

Before You Call For Service

Troubleshooting Tips �� 40, 41

Error Codes �� 42 - 47

Replacement Parts

Instructions For Placing a Parts Order 48

Wiring and Schematic Diagrams .............................. 49

How to Obtain Service Assistance ............................ 52

CONTENTS

Your safety and the safety of others are very important.

There are many important safety messages in this manual

and on your appliance. Always read and follow all safety

messages.

This is the safety alert symbol. Recognize this

symbol as an indication of importan safety

information! This symbol alerts you to safety

hazards that could result in physical harm or

death.

All safety messages will follow the safety alert symbol and

either the word “DANGER,” “WARNING,” “CAUTION,” or

“NOTICE.”

These words mean:

READ ALL SAFETY INFORMATION

FOR YOUR RECORDS:

Write the model and serial numbers here:

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service

under the warranty.

DANGER:

NOTICE:

CAUTION:

WARNING:

An imminently hazardous

situation that will result in

death or serious injury.

A potentially hazardous

situation that can result in

death or serious injury and/or

damage to property.

A potentially hazardous

situation that may result in

minor or moderate injury.

Attention is called to observe a

specified procedure or maintain

a specific condition.

Safety

GENERAL SAFETY PRECAUTIONS

To meet residential water use needs, the temperature

on this water heater is adjustable up to 160°F (71°C).

However, water temperatures over 125°F (52° C) can cause

severe burns instantly or death from scalds. This is the

preferred starting point for setting the control for supplying

general purpose hot water.

Safety and energy conservation are factors to be

considered when setting the water temperature. The most

energy efficient operation will result when the temperature

setting is the lowest value that satisfies the needs

consistent with the application.

Maximum water temperatures occur just after burner

has shut off. To find the temperature of the hot water

being delivered, turn on a hot water faucet, and place

a thermometer in the hot water stream, and read the

thermometer.

The following chart details the relationship of water

temperature and time to scald injury and may be used as a

guide in determining the safest water temperature for your

applications.

The temperature of the water in the heater can be regulated

by setting the temperature on the display (see "User

Interface" section). To comply with safety regulations the

water heater temperature was adjusted to lowest setting

before the water heater was shipped from the factory. The

illustration information on "User Interface" section shows

the display and how to adjust the water temperature.

DANGER:

Hotter water increases the potential for hot water SCALDS.

NOTICE:

Mixing valves are recommended for reducing point of

use water temperature by mixing hot and cold water in

branch water lines. It is recommended that a mixing valve

complying with the Standard for Temperature Actuated

Mixing Valves for Hot Water Distribution Systems, ASSE

1017 be installed. See Water Connections for more details.

For additional information, contact a licensed plumber or

the local plumbing authority.

DANGER

HOT

BURN

Water temperature over 125°F (52°C)

can cause severe burns instantly or

death from scalds.

Children, disabled and elderly persons

are at greatest risk of being scalded.

See instructions manual before setting

temperature of water heater.

Feel water Before bathing or showering.

Temperature limiting valves are

available, see manual.

Water Temperature Time to Produce Serious Burn

120° F (49°C) More than 5 minutes

125° F (52°C) 1

to 2 minutes

130° F (54°C) About 30 seconds

135° F (57°C) About 10 seconds

140° F (60°C) Less than 5 seconds

145° F (63°C) Less than 3 seconds

150° F (66°C) About 1

seconds

155° F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

TIME / TEMPERATURE RELATIONSHIPS IN SCALDS

See Section "User Interface" for setting the temperature.

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

GENERAL SAFETY PRECAUTIONS

Be sure to read and understand the entire Use and Care Manual before attempting to install or operate this water heater. It may

save you time and money. Pay particular attention to the Safety Instructions. Failure to follow these warnings could result in

serious bodily injury or death. Should you have problems understanding the instructions in this manual, or have any questions,

STOP, and get help from a qualified service technician, or the local gas utility.

Venting:

DANGER:

Failure to properly vent the water heater to the outdoors as

outlined in the "Venting and Combustion Air Inlet" section of

this manual can result in unsafe operation of the water heater.

To avoid the risk of fire, explosion, or asphyxiation from carbon

monoxide, never operate this water heater unless it is properly

vented and has adequate air supply for proper operation. Be

sure to inspect the Vent and Combustion Air Inlet section for

proper installation at initial start-up and, at least, annually,

thereafter. Refer to the "Maintenance" section of this manual

for more information regarding vent system inspections.

FLAMMABLES

Flammable Vapors

FIRE AND EXPLOSION HAZARD

Can result in serious injury or death.

Do not store or use gasoline or other flammable vapors and liquids

in the vicinity of this or any other appliance. Storage or use of gasoline

or other flammable vapors or liquids in the vicinity of this or any other

appliance can result in serious injury or death.

W ARNING

Flammable Materials:

WARNING:

Gasoline, as well as other flammable materials and liquids

(which include but are not limited to adhesives, solvents,

paint thinners, etc.), and the vapors they produce are

extremely dangerous. DO NOT handle, use, or store gasoline

or other flammable or combustible materials anywhere near

or in the vicinity of a water heater or any other appliance. Be

sure to read and follow the warning label pictured below and

other labels on the water heater and in this manual. Failure

to DO so can result in property damage, bodily injury, or

death.

Natural Gas and Lique-

ﬁed Petroleum Safety

DANGER:

LIQUEFIED PETROLEUM MODELS — Propane (LP) gas, must

be used with great caution.

• It is heavier than air and will collect first in lower areas

making it hard to detect at nose level.

• Make sure to look and smell for LP leaks before

attempting ignition of the water heater. Use a soapy

solution to check all gas fittings and connections.

Bubbling at a connection indicates a leak that must be

corrected.

• When smelling to detect an LP leak, be sure to sniff

near the floor too.

• Gas detectors are recommended in LP applications

and their installation should be in accordance with

the manufacturer's recommendations and local laws,

rules, regulations, or customs.

• It is recommended that more than one method be used

to detect leaks in LP applications.

IF LP GAS IS PRESENT OR SUSPECTED:

• DO NOT attempt to find the cause yourself;

• DO NOT try to light any appliance;

• DO NOT touch any electrical switch;

• DO NOT use any phone in your building.

• Leave the building immediately and make sure your

family and pets leave also.

• Leave the doors open for ventilation and contact the

gas supplier, a qualified service agency or the fire

department.

• Stay away from the house (or building) until the

service call has been made, the leak is corrected and

a qualified agency has determined the area to be safe.

GENERAL SAFETY PRECAUTIONS

WARNING:

Both LP and natural gas have an odorant added to help

detection. Some people may not physically be able to smell

or recognize this odorant. If unsure or unfamiliar about

the smell associated with LP or natural gas, ask the gas

supplier. Other conditions, such as "Odorant Fade", which

causes the odorant to "fade" or diminish in intensity can also

hide or camouflage a gas leak.

DANGER:

Water heaters utilizing Liquefied Petroleum gas (LP) are

different from natural gas models. A natural gas heater will

not function safely on LP gas and vice versa. No attempt

should ever be made to convert a heater from natural gas

to LP gas. To avoid possible equipment damage, personal

injury or fire: DO NOT connect this water heater to a fuel

type not in accordance with the unit's data plate. Propane for

propane units; natural gas for natural gas units. These units

are not certified for any other type fuel.

WARNING:

LP appliances should not be installed below-grade (for

example, in a basement) if such installation is prohibited by

federal, state, or local laws, rules, regulations or

customs.

Electrical Safety

DANGER:

• Shock Hazard – Make sure the electrical power to the

water heater is off to avoid electric shock that will

result in death or serious personal injury.

WARNINGS:

• For your safety, the information in this manual must

be followed to minimize the risk of fire, explosion, or

electric shock that can result in death, personal injury,

and/or property damage.

• Field wiring connections and electrical grounding must

comply with local codes or, in the absence of local

codes, with the latest edition of the National Electrical

Code, ANSI/NFPA 70, or in Canada, Canadian

Electrical Code, CAN/CSA C22.1, Part 1.

CAUTIONS:

• Label all wires prior to disconnecting for service.

Wiring errors can cause dangerous and improper

operation. Verify correct operation after servicing.\

• For your safety, burner inspection and cleaning should

be performed only by qualified service personnel.

• Make certain the power to the water heater is OFF

before removing the unit cover panel. Exposed

electrical components and moving parts can cause

personal injuries.

• For your safety, DO NOT attempt repair of electrical

wiring, gas piping, remote control, burners, vent

connectors, or other safety devices. Refer repairs to

qualified service personnel.

Inspect Shipment

Carefully inspect the water heater for damage before

proceeding with the installation. Of specific interest should

be combustion air-inlet piping assembly, exhaust-tee, or

damage to blower-valve assembly. If you find damage,

DO NOT install or attempt any repair to the water heater.

Contact the manufacturer as detailed under "HOW TO OBTAIN

ASSISTANCE".

COMPONENTS DIAGRAM

Touch Display

Jacket

Leak Sensor

Space

Heating

Outlet

Magnesium

Anode

Space

Heating

Inlet

Temperature

and Pressure

Relief Valve

Drain Valve

Leak Sensor

Exhaust

Tee Assy

Pressure

Switch

(Intake)

Front Panel

Assy

Blower

Side Panel

Air Intake

Ignition

Control

Pressure Switch

Proof of Fan

Exhaust

Tee Assy

Transformer Box

Gas Inlet

Lower

Thermistor

Front View

Top View Back Iso View

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

The water heater should not be located in an area where

leakage from the tank or connections will result in damage

to the area adjacent to the heater or to lower floors of the

structure.

When such areas cannot be avoided it is recommended that

a suitable drain pan, adequately drained, must be installed

under the water heater.

The auxiliary drain pan installation MUST conform with

local codes.

The water heater must be positioned in the drain pan as

shown. Ensure that the condensate-tee is located inside the

drain pan. Recommended minimum drain pan size of 28"

diameter.

Drain pan kits are available from the store where the water

heater was purchased, or any water heater distributor.

Make certain the floor underneath the water heater is

strong enough to sufficiently support the weight of the

water heater once it is filled with water.

This gas-fired water heater or any other appliance should

not be installed in a space where liquids which give

off flammable vapors are to be used or stored. Such

liquids include gasoline, LP gas (butane or propane),

paint or adhesives, thinners, solvents and/or combustible

removers.

Because of natural air movement in a room or other

enclosed space, flammable vapors can be carried some

distance from where liquids which give off flammable

vapors are to be used or stored. The open flame of the

water heater’s main burner can ignite these vapors creating

a shut down condition which will not allow the water heater

to ignite.

Rheem Water Heating FVIR certified gas water heaters can

be installed on a residential garage floor without the use

of an 18 in. (46 cm.) stand in accordance with the National

Fuel Gas Code, ANSI Z223.1/NFPA 54, unless otherwise

directed by State and Local code requirements. The water

heater must be located so it is not subject to physical

damage, for example, by moving vehicles, area flooding,

etc.

IMPORTANT: DO NOT install the water heater in a location

where it may be subjected to ambient temperatures

exceeding 125°F (52°C).

• The water heater should be installed so as to minimize

the length of plastic vent and combustion air-inlet

pipe and the number of vent and combustion air-inlet

connection fittings required.

• See Vent and Combustion Air-Inlet Section for vent

system requirements.

• Hot water lines should be insulated to conserve water

and energy.

• Protect the water heater and water lines from exposure

to freezing temperatures.

• DO NOT install this water heater outdoors.

• Minimum clearances from combustible construction:

Front Sides Rear Top

5 In.

(12.7 cm)

0 In.

(0 cm)

0 In.

(0 cm)

15 In.

(30.5 cm)

"Front" Clearance dimension is measured from the water

heater jacket to the closet door.

"Top" clearance dimension is measured from the jacket top

of the water heater to the ceiling.

INSTALLATION

Location

This water heater must be installed in accordance with these instructions, local codes, utility company requirements,

and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A

copy can be purchased from either the American Gas Association, 400 N. Capitol Street NW, Washington, DC 20001 as

ANSI standard Z223.1 or National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as booklet NFPA 54.

NOTICE:

For proper operation and maintenance, a minimum

clearance of 1.5 inches (3.8 cm) must be provided from

the combination temperature and pressure relief valve to

any wall or object.

WARNING:

Combustible construction refers to adjacent walls and

ceilings and should not be confused with combustible or

flammable products and materials. Combustible and/or

flammable products and materials should never be stored

in the vicinity of this or any gas appliance.

DRAIN PAN

The Exhaust Tee located on the right front of the unit will require additional

side clearance of approximately 2.75" from the water heater.

INSTALLATION

If the water heater is to be installed directly on carpeting,

the water heater shall be installed on a metal or wood

panel extending beyond the full width and depth of the

water heater by at least 3 in. (7.6 cm) in all directions

or, if the water heater is to be installed in an alcove or

closet, the entire floor must be covered by a wood or

metal panel.

CORROSIVE ATMOSPHERES

The air in beauty shops, dry cleaning establishments,

photo processing labs, and storage areas for liquid and

powdered bleaches or swimming pool chemicals often

contain halogenated hydrocarbons.

An air supply containing halogenated hydrocarbons may

be safe to breathe, but when it passes through a gas

flame corrosive elements are released that will shorten

the life of any gas burning appliance.

Propellants from common spray cans or gas leaks from

A/C and refrigeration equipment are highly corrosive

after passing through a flame.

The water heater warranty is voided when failure of the

heater is due to operation in a corrosive atmosphere.

THERMAL EXPANSION

Determine if a check valve exists in the inlet water line.

It may have been installed in the cold water line as

a separate back flow preventer, or it may be part of a

pressure reducing valve, water meter or water softener.

A check valve located in the cold water inlet line can

cause what is referred to as a ”closed water system”.

A cold water inlet line with no check valve or back flow

prevention device is referred to as an ”open” water

system.

As water is heated, it expands in volume and creates

an increase in the pressure within the water system.

This action is referred to as ”thermal expansion”. In an

”open” water system, expanding water, which exceeds

the capacity of the water heater, flows back into the city

main where the pressure is easily dissipated.

A ”closed water system”, however, prevents the

expanding water from flowing back into the main supply

line and the result of ”thermal expansion” can create

a rapid, and dangerous pressure increase in the water

heater and system piping. This rapid pressure increase

can quickly reach the safety setting of the relief valve,

causing it to operate during each heating cycle. Thermal

expansion, and the resulting rapid, repeated expansion

and contraction of components in the water heater and

piping system can cause premature failure of the relief

valve and possibly the heater itself. Replacing the relief

valve will not correct the problem!

The suggested method of controlling thermal expansion

is to install an expansion tank in the cold water line

between the water heater and the check valve. The

expansion tank is designed with an air cushion built

in that compresses as the system pressure increases,

thereby relieving the over pressure condition and

eliminating the repeated operation of the relief valve.

Other methods of controlling thermal expansion are

also available. Contact your installing contractor, water

supplier, or plumbing inspector for additional information

regarding this subject.

WATER CONNECTIONS

Refer to illustration on page 11 for suggested typical

installation. The installation of unions or flexible

connectors is recommended on the hot and cold water

connections so that the water heater may be easily

disconnected for servicing if necessary. If flexible water

connections are used, they must comply with the standard

for flexible Water Connectors, ASME A112.18.6/CSA-

B125.6. The HOT and COLD water connections are clearly

marked on the water heater. Install a shutoff valve in the

cold water line near the water heater.

IMPORTANT

All models are equipped with front and side panels, it is

recommended that the hot and cold water piping have a

minimum vertical height of 10 inches (25.4 cm) from the

top of the water heater before transitioning into any elbow.

This vertical height is needed in order to provide adequate

clearance for Side Panel installation and removal.

To gain access to the hot and cold water connections

the side panels need to be removed. The side panels are

secured on the top of the water heater with fastening

pegs (see illustration). Pull the side panels either

outwards or upwards to release panels from pegs.

RELIEF VALVE

The pressure rating of the relief valve must not exceed

150 psi (1,034 kPa), the maximum working pressure of the

water heater as marked on the rating plate.

The Btu/h rating of the relief valve must equal or exceed

the Btu/h input of the water heater as marked on its rating

plate.s

Position the outlet of the relief valve above a suitable open

drain to eliminate potential water damage. Piping used

should be of a type approved for hot water distribution.

The discharge line must be no smaller than the outlet of

the valve and must pitch downward from the valve to allow

complete drainage (by gravity) of the relief valve and

discharge line.

The end of the discharge line should not be threaded or

concealed and should be protected from freezing. No valve

of any type, restriction, or reducer coupling should be

installed in the discharge line.

TO FILL THE WATER HEATER

Make certain that the drain valve is closed, then open the

shut-off valve in the cold water supply line.

Open each hot water faucet slowly to allow the air to vent

from the water heater and piping.

A steady flow of water from the hot water faucet(s)

indicates a full water heater.

GAS SUPPLY

The inlet gas pressure to the water heater must not

exceed 10.5" wc (2.6 kPa) for Natural gas and 13.0" wc

(3.2 kPa) for L.P. gas. The minimum inlet gas pressure

(with main burner on) is shown on the rating plate.

Check to see if high or low gas pressure is present and

then contact the gas company for correction.

The branch gas supply line to the water heater should

be clean properly sized steel pipe or other approved gas

piping material.

A union or ANSI design certified semirigid or flexible

gas appliance connector should be installed in the gas

line close to the water heater. The National Fuel Gas

Code (NFGC) mandates a manual gas shut off valve: See

(NFCG) for complete instructions.

If flexible connectors are used, the maximum length

shall not exceed 36 in. and must meet the requirements

in ANSI Z21.24/CSA 6.10 - Connectors for Gas

Appliances.

Compound used on the threaded joints of the gas piping

must be of the type resistant to the action of LP gas. Use

compound sparingly on male threads only.

Where a sediment trap is not incorporated as part

of the appliance, a sediment trap shall be installed

downstream of the equipment shutoff valve as close to

the inlet of the appliance as practical at the time of the

appliance installation. The sediment trap shall be either

a tee fitting with a capped nipple in the bottom outlet or

other device recognized as an effective sediment trap.

See figure.

DO NOT use excessive force (20Ft.-Lbs.) in tightening

the pipe joint at the gas control (thermostat) inlet,

particularly if teflon pipe compound is used, as the valve

body may be damaged.

For purposes of input adjustment, the minimum inlet

gas pressure (with main burner on) is shown on the

water heater rating plate. If high or low gas pressure are

present, contact your gas supplier for correction.

A ground joint union and manual shutoff valve should be

installed in the gas line near the water heater so that the

burner assembly may be easily removed. The shut-off

valve must be readily accessible for turning on or off.

LEAK TESTING

The water heater and its gas connections MUST be leak

tested at normal operating pressure before it is placed

in operation. Turn ON the manual gas shut-off valve

near the water heater. Use a soapy water solution to test

for gas leaks at all connections and fittings. Bubbles

indicate a gas leak that must be corrected. The water

heater factory connections to the gas valve should

INSTALLATION

also be leak tested after placing the water heater in

operation.

WARNING:

NEVER use open flame to test for gas leaks, as bodily

injury or property damage could result.

PRESSURE TESTING THE GAS SUPPLY SYSTEM

The water heater and its individual gas shut-off valve

MUST be disconnected from the gas supply piping

system during any high pressure testing of that system

at pressures in excess of 1/2 psi (14” WC. 3.5 kPa).

The water heater MUST be isolated from the gas piping

system by closing the manual gas shut-off valve during

any pressure testing of the gas supply piping at pressures

equal to or less than 1/2 psi (14” WC / 3.5 kPa).

CONDENSATE

The exhaust elbow/condensate trap is shipped pre-installed

with the heater. Pour the supplied neutralizer into the

exhaust tee before vent pipe installation. Make sure that the

neutralizer is at the bottom as shown in the figure on next

page.

This is a condensing high efficiency appliance and has a

condensate removal system. The exhaust tee incorporates

a condensate trap and must be filled with water before

operating the water heater. Pour about 1 cup of water into

the exhaust tee.

This water heater generates condensate and requires a

drain to be located in close proximity to allow condensate to

drain safely. The drain line and fittings should be installed

per installation instructions.

Be sure the condensate runs freely to the drain and does

not accumulate in the condensate trap or the condensate

line. In cold climates, precautions may need to be taken

to ensure that the condensate drain lines DO not freeze. A

water proof heat tape may be used to prevent freezing of

condensate lines.

To Gas Supply

Manual Gas Shut Off

Gas Pipe to Gas Valve

Sediment

Trap

Union

• Condensate is mildly acidic and should be collected and

disposed per local codes. Certain local codes require

condensate to be neutralized before it is disposed. This

water heater comes with a pre-packaged neutralizer bag.

Pour the neutralizer in the exhaust-tee prior to installing

vent pipes. Make sure the neutralizer is at the bottom of the

exhaust-tee.

• Use only PVC, CPVC pipe or flexible tubing suitable for use

with flue condensate as drain line. If flexible tubing is used

ensure that there are no bends or twists and has gradual

slope to condensate drain.

• The drain line (along its entire length) must be at least the

same diameter as the drain of the condensate trap (1/2”).

• The drain line must be short as possible and have a

downward slope towards the condensate drain. If suitable

slope is not provided, the drain line can get blocked and

will cause improper operation of the water heater. If a

downward slope cannot be provided, a condensate pump

should be used to pump condensate to a suitable drain.

• The end of the drain line should be open to the atmosphere.

The end should not be under water.

• DO NOT connect the drain line directly to the sewer drain.

• DO NOT connect the drain line with drains from other

appliances.

• DO NOT drain condensate into the water heater drain pan.

• DO NOT drain condensate over public way, walkway or other

areas where it will create slippery condition, which could

lead to personal injury.

HIGH ALTITUDE

Input rating of this water heater is based on sea level

operation. At higher elevations the actual input rate may

be lower than the value listed on the rating label due to the

derating of Natural Gas and LP Gas.

Natural Gas models with sea level rated input rates of 50,000

BTUH require adjustments on touch screen display for high

altitude installations above 2000ft. These adjustments

are activated only on models that require high altitude

adjustments

Refer to vent length chart in 'Venting and Air Intake' section for

appropriate elevations, vent sizes, and lengths.

WARNING:

Failure to install a water heater suitable for the altitude at

the location it is intended to serve, can result in improper

operation of the appliance resulting in property damage and/

or producing carbon monoxide gas, which could result in

personal injury, or death.

WIRING

INSTALLATION

CONDENSATE NEUTRALIZER

CONDENSATE DRAIN

1. MAIN SCREEN

2. SETTINGS SCREEN

3. BASIC SETTINGS SCREEN: ELEVATION NORMAL

4. BASIC SETTINGS SCREEN: ELEVATION HIGH

To open drain

Status: Standby

StatusSettings

warm hot very hot

Disable

118°

Service

basic settings

Temperature Display Fahrenheit

Screen Adjustment Lock? No

Beep on Alarm Disabled

EcoNet Network Instance 1

Elevation Normal

basic settings

Temperature Display Fahrenheit

Screen Adjustment Lock? No

Beep on Alarm Disabled

EcoNet Network Instance 1

Elevation High

Transformer

(120V / 60Hz)

To Ground Block

Power Cord

Display Rocker Switch

on the front display

Blower Power Connector

Ignition Control Power

Connector

2-520263-2

Disconnect

2-520102-2

Disconnect

Transformer

(120V / 60Hz)

To Ground Block

Power Cord

Display Rocker Switch

on the front display

Blower Power Connector

Ignition Control Power

Connector

2-520263-2

Disconnect

2-520102-2

Disconnect

For Commercial applications disconnects

can be cut off and replaced with wire nuts to

connect the leads to the power cable from

the electrical junction box if necessary.

INSTALLATION

To Gas Supply

Manual Gas Shut Off

Drain Valve

Union

Thermal

Expansion Tank

(Not Supplied)

If required, install

per local codes and

tank manufacturer's

instructions.

Hot water outlet

to ﬁxtures

Too cold

water supply

Vacuum Relief Valve (Not supplied)

If required, install per local codes and

valve manufacturer's instructions

Heat Trap

6" Minimum

Heat Trap

6" Minimum

Shut-off

Valve

Shut-off

Valve

Sediment Trap

Temperature & Pressure

Relief Valve

Discharge Line to

suitable open drain

Air Gap 6"

NOTES:

The gas supply piping

must be adequately

supported and aligned to

minimize loads (forces)

on the water heater's gas

valve and burner system.

TYPICAL INSTALLATION

A correct polarity 120V 50/60 Hz power supply with suitable disconnect means, must be connected to the black and white leads

provided. The maximum current draw by these models is 7 Amps. The water heater, when installed, must be electrically grounded in

accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 in the United States,

or CSA C22.1 Electrical Code, in Canada. Improper grounding or polarity may result in abnormal operation of the heater.

3/4" Check Valve

with 1/8" Hole

Pressure Gauge

Hot water line

Cold water line

3/4" Shut-Off

Valve (Typ.)

Gas Line

3/4" cold water

supply

Heat Trap

6” Min.

3/4" Shut-Off

Valve (Typ.)

2 Gallon Thermal Expansion

Tank (if required-not supplied

with water heater)

3/4" Shut-

Off Valve

(Typ.)

3/4" Tempered

domestic hot water

supply to house.

Minimum of 2'-0" developed length

of 3/4" type "L" copper from the

water heater connection.

Nominal 3/4" size mixing or

tempering valve (refer to warning

above). Follow mixing or tempering

valve manufacturer’s instructions

for installation of the valve.

Isolation valve in hot water

supply line to heating unit (not

supplied with water heater)

See diagrams above for proper

pipe application for vertical

or horizontal supply lines.

Temperature and Pressure Relief

Valve, tie to location approved by

local code

Temperature and pressure

relief valve discharge line

140°F (60°C)

120°F (49°C) to

130°F (54°C)

Water Heater drain pan installed

in accordance with the Local and

State Code

6” Air Gap

Isolation valve in

cold water return

line from heating

unit (not supplied

with water heater)

Drain valve

(not supplied

with water

heater)

Air vent

3/4" HWS & HWR

to Heating Coil.

Water Heater drain pan installed

in accordance with the Local

and State Code

Air Handler

FAN

OFF

HEAT

COOL

To HVAC Unit.

Piping loop between

water heater and fan

coil shall be ﬂow guard

gold CPVC or equal

Hot water to

space heater

Hot water coil

All bronze pump

Check valve internal

in pump

Air bleed valve

Water Sample Tap

TYPICAL PIPING DIAGRAM FOR COMBINATION POTABLE/SPACE HEATING INSTALLATION

Flow Control

Valve

INSTALLATION

VENT AND COMBUSTION AIR INLET

NOTE: This unit can be vented either as a direct vent or power

vent configuration.

NOTE: Power vent installations are Category IV.

WARNING:

DO NOT connect this water heater to an existing vent

or chimney; it must be vented separately from all other

appliances, using only approved venting materials.

WARNING:

Failure to properly vent the water heater to the outdoors as

outlined above and in the following section can result in

unsafe operation of the water heater causing bodily injury,

explosion, fire or death.

DANGER:

To avoid the risk of fire, explosion, or asphyxiation from

carbon monoxide, NEVER operate the water heater unless

it is properly vented and the vent and combustion air inlet

systems are properly installed as detailed in the "Vent and

Combustion Air-Inlet" section of this manual.

The vent and combustion air inlet pipes must overlap a

minimum of 1/2 in. (1.3 cm) at each joint. It is important that

the vent and combustion air inlet pipes engage fully into any

pipe fitting and be kept in that position until the adhesive has

fully cured. DO NOT drill or punch holes in the plastic pipe or

fittings.

NOTICE:

This unit can be vented using only the below

recommended pipe material. Use only 2, 3, or 4 inch

diameter pipe.

Refer to local codes for restrictions on the use of PVC,

CPVC, PP or ABS pipe and fittings. All exhaust venting

materials for products installed in Canada must meet ULC-

S636.

NOTE:

For the State of Massachusetts, use only plastic piping,

fittings and vent terminations as spedified in the manual

which are approved by the Massachusetts Board of State

Examiner of Plumbers and Gas for venting of appliances (see

link below):

https://licensing.reg.state.ma.us/pubLic/pl_products/pb_pre_

form.asp

PVC (DWV, ASTM-D2665 or CSA B181.2)

PVC (Schedule 40, ASTM-D1785 or CSA B137.3)

PVC (SDR Series, ASTM-D2241 or CSA B137.3)

CPVC (CPVC 4120, ASTM-D2846 or CSA B137.6)

CPVC (Schedule 40, ASTM-F441 or CSA B137.3)

CPVC (SDR Series, ASTM-F442)

ABS (Schedule 40, DWV, ASTM-D2661 or CSA B181.1)

Polypropylene

IMPORTANT

Where state and/or local codes require vent

terminations, as specified in this Use and

Care Manual to be certified to the UL 1738

Standard for Venting Systems for Gas-Burning

Appliances, Categories II, III, and IV, contact the

Manufacturer’s National Service Department (see

page 52).

NOTICE:

Use of PVC cellular core (ASTM-F891), ABS Schedule 40, DWV

cellular core (ASTM –F628), or Radel® (polyphenylsulfone) in

non-metallic venting systems is prohibited.

The unit may be vented horizontally through a wall or vertically

through the roof. Pipe runs must be adequately supported along

both vertical and horizontal runs. Maximum unsupported span

is recommended to be no more than 3 feet. It is imperative that

the first hanger be located on the horizontal run immediately

adjacent to the first 90-degree elbow from the vertical rise or

at the blower outlet. The support method used should isolate

the vent pipe from floor joists or other structural members to

help prevent the transmission of noise and vibration. DO NOT

support, pin, or otherwise secure the venting system in a way

that restricts the normal thermal expansion and contraction of

the chosen venting material.

If the water heater is being installed as a replacement for an

existing power vented or power direct vented water heater, a

thorough inspection of the existing venting system must be

performed prior to any installation work. Verify that the correct

materials, as detailed above, have been used and that the

minimum or maximum vent length and terminal locations,

as detailed in this manual, have been met. Carefully inspect

the entire venting system for any signs of cracks or fractures,

particularly at the joints between elbows or other fittings and the

straight runs of vent pipe. Check the system for signs of sagging

or other stresses in the joints as a result of misalignment of

any components in the system. If any of these conditions are

found, they must be corrected in accordance with the venting

instructions in this manual before completing the installation

and putting the water heater into service.

Additional installation information for The Common wealth of

Massachusetts is located on the back page of this manual.

VENT PIPE CONNECTION

Refer to "Vent Pipe Connection Locations" Figure, for connecting

the vent pipe to the water heater. These models can be vented

either as a direct vent or as a power vent water heater.

NOTICE:

If the unit is installed as a power vent water heater, the vent

terminal with screen must still be installed on the inlet air side.

INSTALLATION

Before starting the vent installation, careful planning of

the routing and termination of vent and air inlet pipes can

reduce installation times. The length of the vent and air inlet

pipes should be kept to a minimum. Refer to the venting

charts in Table 1 for the pipe sizes and the total equivalent

length of pipe that can be used. DO NOT exceed the

equivalent length of pipe in the charts.

Depending on the size of pipe selected for venting the water

heater, it may be necessary to use a fitting for stepping up

to connect to the water heater. DO NOT step down pipe size

below the 2" pipe size. All models are shipped with 2" vent

terminals with screen. If another size of pipe is used for

venting the unit, the proper vent terminal must be installed.

When the unit is vented as a direct vent, through a side

wall, the vent terminals must be on the same exterior wall

mounted horizontally and maintain a minimum distance

between the centers of 15" (38.1 cm).

JOINING PIPES AND FITTINGS

All pipe, fittings, solvent cement, primers, and procedures,

must conform to American National Standards Institute and

American Society for Testing and Materials (ANSI/ASTM)

standards in the U.S. For Canada, all pipe, fittings, solvent

cement, primers, and procedures must conform to ULC-

S636 and vent manufacture specifications.

CEMENTING JOINTS

NOTICE:

All pipe, fittings, solvent cement, primers and procedures

must conform to American National Standards Institute and

American Society for Testing and Materials (ANSI/ASTM)

standards.

All joints in the vent piping must be properly sealed. Use of

the following material is recommended:

PVC materials should use ASTM D-2564 grade cement.

CPVC materials should use ASTM F-493 grade cement.

ABS materials should use ASTM D-2235 grade cement.

Cleaner-Primer and Medium Body Solvent Cement

1. Cut the pipe end square, removing all jagged edges and

burrs. Chamfer the end of the pipe, and, then, clean

the fitting socket and pipe joint area to remove all dirt,

grease, and moisture.

2. After checking pipe and socket for proper fit, wipe the

socket and pipe with cleaner-primer. Apply a liberal

coat of primer to the inside surface of the socket and

the outside of the pipe. DO NOT allow the primer to dry

before applying the cement.

3. Apply a thin coat of cement evenly in the socket. Quickly

apply a heavy coat to the pipe end. Insert the pipe into

the fitting with a slight twisting motion until it bottoms

out.

Blower Air Inlet

Connection

Noise Reducer

VENT PIPE CONNECTION LOCATIONS

INSTALLATION

NOTICE:

Cement must be fluid; if not, re-coat.

4. Hold the pipe fitting for 30 seconds to prevent the tapered

socket from pushing the pipe out of the fitting.

5. Wipe all excess cement from the joint with a rag. Allow

15 minutes for drying before handling. Cure time will vary

according to fit, temperature, and humidity.

NOTICE:

Stir the solvent cement frequently while using. Use a natural

bristle brush or the dauber supplied with the can. The proper

brush size is one inch.

FOR PROPER INSTALLATION

CAUTIONS:

• DO NOT use solvent cement that has become curdled,

lumpy or thickened.

• DO NOT thin solvent cement. Observe shelf

precautions printed on the containers.

• For applications below 32°F (0°C), use only low

temperature type solvent cement.

• Appropriate solvent and cleaner must be used for the

type of vent pipe used (PVC, CPVC, PP, or ABS).

DANGER OF FIRE OR BODILY

INJURY

Solvent cements and primers are highly flammable. Provide

adequate ventilation and DO NOT assemble near a heat

source or open flame. DO NOT smoke. Avoid skin or eye

contact. Observe all cautions and warnings on material

containers.

Minimum and Maximum Vent Lengths

Important information for all installations:

1) The minimum required venting is what is required to safely extend the inlet and outlet vent pipes

outside of the building.

2) Each 90° elbow (standard or long sweep elbow) reduces the

equivalent vent length as shown.

3) Each 45° elbow reduces the equivalent vent length by 2 1/2 feet (0.8m).

4) DO NOT mix pipe sizes for venting these models, use only one size of pipe for all venting.

5) All vent terminations (horizontal or vertical) should be a minimum of 24 inches (61cm) and a

maximum of 36 inches (91 cm) apart, as measured from center to center of terminals.

Exceeding the maximum equivalent vent lengths may cause the water heater to malfunction or cause a

lock-out condition.

Feet to Meters

20 6.1

50 15.2

60 18.3

70 21.3

80 24.4

100 30.5

120 36.6

130 39.6

170 51.8

Additional Fitting Considerations

10 Feet Equivalent

Length

8 Feet Equivalent

Length

5 Feet Equivalent

Length

Short Sweep 90°

Elbow

Standard 90°

Elbow

Long Sweep 90°

Elbow

EXAMPLES OF ELBOWS:

It is recommended to

use only standard and/or

long sweep elbows. See

examples as shown.

INSTALLATION

Note: The intake and exhaust connections are set-up with 2" Schedule 40 pipe size. An adapter may be used to increase pipe size to 3

and 4" along the length of the vent and air intake. Vent and air intake pipes should always be set-up to the same size. The vent length

calculations should be based upon termination size.

All power direct models can use 2 in. concentric venting only as listed

in the above chart.

2 inch concentric vent can only be used with 2 inch rigid piping.

DO NOT mismatch concentric vent terminations with different rigid

piping as it may cause the heater to malfunction or cause a lock-out

condition unless specifically mentioned.

3" Concentric vent may be used with 3" and 4" venting.

Flexible Polypropylene pipe (ft)

Pipe Size (IN.)

2" 3"

Intake Exhaust Intake Exhaust

Max PV

30'

(13m)

30'

(13m)

40G-50K AND 50G-50K; POWER VENT

CONFIGURATION; (RIGID PIPE)

40G-50K AND 50G-50K; POWER DIRECT VENT

CONFIGURATION; (RIGID PIPE)

Elevation

(Feet)

Vent Size

(Inches)

Nat Max Eq.

Length (Feet)

LP Max Eq.

Length (Feet)

Nat Max Eq. Length(Feet) LP Max Eq. Length (Feet)

Terminations

Intake Exhaust Intake Exhaust

0-2000

2" 50' 50' 50' 50' 50' 50'

2" AND 3"

90° ELBOWS,

2", 3" AND 4"

CONCENTRIC

AND 2"AND 3"

PANCAKE

3" 140' 140' 140' 140' 140' 140'

4" 140' 140' 140' 140' 140' 140'

2000-5400

2" 50' 40' 50' 50' 40' 40'

3" 140' 110' 140' 140' 110' 110'

4" 140' 110' 140' 140' 110' 110'

5400-7800

2" 50' 20' 50' 50' 10' 20'

3" 140' 110' 140' 140' 110' 110'

4" 140' 110' 140' 140' 110' 110'

7800-

10,100

2" 50'

NOT

APPLICABLE

50' 50'

NOT

APPLICABLE

NOT

APPLICABLE

3" 140'

NOT

APPLICABLE

140' 140'

NOT

APPLICABLE

NOT

APPLICABLE

4" 140'

NOT

APPLICABLE

140' 140'

NOT

APPLICABLE

NOT

APPLICABLE

*MINIMUM INTAKE AIR AND EXHAUST VENT: 10' EQUIVALENT LENGTH

NATURAL GAS MODELS CAN BE INSTALLED IN HIGH ALTITUDE LOCATIONS WITH DISPLAY CONTROL SETTING CHANGES AS SHOWN IN HIGH ALTITUDE SECTION.

APPLIES ONLY TO TOUCH SCREEN DISPLAY MODELS

++LP GAS MODELS HAVE UNIQUE HIGH ALTITUDE MODEL NUMBERS. THEY ARE FACTORY SET FOR HIGH ALTITUDE OPERATION. HIGH ALTITUDE MODELS HAVE A 'H' DESIGNA-

TION AT THE END OF THE MODEL NUMBER. REFER TO RATING PLATE FOR MODEL NUMBER.

50G-76K, 50G-100K; POWER VENT

CONFIGURATION; (RIGID PIPE)

50G-76K, 50G-100K; POWER DIRECT VENT

CONFIGURATION; (RIGID PIPE)

Elevation

(Feet)

Vent Size

(Inches)

Nat Max Eq.

Length (Feet)

LP Max Eq.

Length (Feet)

Nat Max Eq. Length(Feet) LP Max Eq. Length (Feet)

Terminations

Intake Exhaust Intake Exhaust

0-10,100

2" 40' 40' 40' 40' 40' 40'

2" AND 3"

90° ELBOWS,

2", 3" AND 4"

CONCENTRIC

AND 2"AND 3"

PANCAKE

3" 140' 140' 140' 140' 140' 140'

4" 140' 140' 140' 140' 140' 140'

MINIMUM INTAKE AIR AND EXHAUST VENT: 10' EQUIVALENT LENGTH

Table 1 - Residential Equivalent Vent Lengths

Follow manufacturers instructions for installation of flex

vents.

INSTALLATION

Direct Vent Installation

Check to make sure flue gases DO NOT recirculate into the

air intake terminal when using direct venting. If the water

heater is having service issues, flue recirculation may be a

contributing factor.

Even when the minimum vent terminal separation distances

are followed, recirculation may still occur, depending upon

the location outside the building, the distance from other

buildings, proximity to corners, weather conditions, wind

patterns, and snow depth.

Periodically check to make sure that flue recirculation is not

occurring. Signs of flue gas recirculation include frosted or

frozen intake terminals, condensate in the intake terminal

and venting system, oxidation, or white chalk material

on the flame sensor or igniter shield. Correction to flue

recirculation may involve angling the intake away from the

exhaust terminal, increasing the distance between them, or

using inside air for combustion. Check to be sure the intake

and exhaust terminals are not obstructed, especially during

periods of below freezing weather.

All intake and exhaust venting components must have the

same diameter size. DO NOT use a different size on the

intake and exhaust venting.

Be sure the condensate runs freely to a drain and does

not accumulate inside the water heater. In cold climates,

precautions may need to be taken to insure that the

condensate drain does not freeze. Make sure the condensate

trap or drain loop is installed to prevent flue gases from

being discharged into the room. Refer to the "Venting" section

of this manual for complete instructions on venting and

condensate drainage.

Stress levels in the pipe and fittings can be significantly

increased by improper installation. If rigid pipe clamps are

used to hold the pipe in place, or if the pipe cannot move

freely through a wall penetration, the pipe may be directly

stressed, or high thermal stresses may be formed when the

pipe heats up and expands. Install accordingly to minimize

such stresses. Follow the below procedure to vent through the

wall.

1. Cut two holes for the pipe to pass through. The hole

diameter should be 2.5" (6.4 cm) for 2" pipe, 3.5" (8.9

cm) for 3" pipe. Vent terminals must maintain a horizontal

distance apart in the range of 24" min. (61 cm).

2. Use the proper PVC cement (primer and adhesive) to

secure the exhaust vent and air intake terminals provided

with the water heater to the plastic pipes. The distance

between the back edge of the exhaust vent terminal and

the exterior wall must be 6 inches (12.7 cm) more for the

exhaust vent terminal than the air intake terminal. Use

the proper cement or sealant and assembly procedures to

secure the vent connector joints between the terminal and

the blower outlet. Provide support brackets every 3 feet

(.91 m) of horizontal vent beyond the intake terminal.

Min. 24"

Inlet Outlet

Additional Considerations (in the following pages)

DO NOT install vent terminals under any patio or deck.

To help prevent moisture from freezing on walls and under

eaves, DO NOT locate outlet vent terminal on the side of your

home with prevailing winter winds.

DO NOT terminate vent pipe directly on brick or masonry

surfaces. Use a rust-resistant sheet metal backing plate behind

vent. (See Figure above.)

DO NOT locate vent terminal too close to shrubbery, since flue

gases may damage them.

Caulk all cracks, seams and joints within 6 feet

(1.83 m) of vent terminal.

All painted surfaces should be primed to lessen the chance of

physical damage. Painted surfaces will require maintenance.

Make sure that all vent pipes exposed to cold conditions

(attics, crawl spaces, etc.) have the proper slope and support

to keep moisture from accumulating in the vent pipes. NOTE:

Insulating of non-metallic vent materials is prohibited.

This water heater requires its own separate venting system.

DO NOT connect the exhaust vent to an existing vent pipe or

chimney.

Moisture in the flue gas will condense as it leaves the vent

terminal. In cold weather this condensate can freeze on the

exterior wall, under the eaves, and on surrounding objects.

Some discoloration to the exterior of the building is to be

expected; however, improper location or installation can result

TYPICAL HORIZONTAL VENT INSTALLATION

VERTICAL VENT TERMINAL LOCATION

Short Piece of Vent

Pipe

*Min. 12"(30.5 cm)

Above Roof or

Min. 12"(30.5 cm) Above

Anticipated Snow Level.

Max. 24"(61 cm) Above

Roof (Without Additional

Support)

Vent Pipe

Through

Roof

Elbows

* Min of 18"(46 cm) for Canada

Pipe &

Coupling

Sheet Metal Shield on

Brick or Masonry Walls

Outside of the

Building Wall

To the Water Heater

Vent Pipe

Inlet Vent Terminal

with 1/2" Mesh

Protective

Screen Inside

Vent

Pipe

Elbow can be a maximum

of 1 inch from the wall.

in severe damage to the structure or exterior finish of the

building. In locations with extended amounts of time with

temperatures under 40°F. (4°C.) and/or prevailing wind toward

the outlet vent, make sure that the outlet vent terminal is at

least 2 feet (0.61 m) away from anything that can be damaged

by the condensate.

HORIZONTAL VENT

INSTALLATION

Once the vent terminal location has been determined, make a

hole through the exterior wall to accommodate the vent pipe.

The vent pipe must exit the exterior wall horizontally only (See

Typical Horizontal Vent Installation Figure on this page).

Insert a small length of vent pipe through the wall, and

connect the coupling as shown in Typical Horizontal Vent

Installation Figure. Connect the vent terminal as shown to the

vent pipe on the exterior of the building. Seal any opening

around the vent pipe or fittings with mortar or silicone caulk

as shown in Typical Horizontal Vent Installation Figure.

Complete the rest of the vent pipe installation to the water

heater’s vent connector fitting on the blower outlet. If

necessary, support the horizontal run of pipe as previously

mentioned.

VERTICAL VENT

INSTALLATION

Once the vent terminal location has been determined, make

a hole through the roof and interior ceiling to accommodate

the vent pipe. Complete the vent pipe installation to the water

heater’s vent connector fitting on the blower outlet. Support

vertical or horizontal runs as previously mentioned.

Install adequate flashing where the vent pipe passes through

the roof. Determine the vent terminal height and cut the vent

pipe accordingly. Refer to Vertical Vent Terminal Location

Figure for the proper vent terminal height. Connect the vent

elbow onto the vertical pipe through the roof. Connect a short

piece of vent pipe (approximately 3" (7.6 cm) long) to the

elbow, and, then, join the vent terminal to the short piece of

vent pipe.

INSTALLATION

FIXED

CLOSED

ERA

FIXE

CLOSED

The following information should be used for determining the proper location of the vent terminal

for direct vent water heaters.

VENT TERMINAL

AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

HORIZONTAL VENT TERMINAL LOCATION FOR POWER DIRECT VENT

Canadian Installations

US Installations

A= Clearance above grade, veranda, porch, deck or

balcony.

12 inches (30 cm) 12 inches (30 cm)

B= Clearance to window or door that may be opened.

• 6 in (15 cm) for appliances < 10,000 Btuh (3

kW),

• 9 in (23 cm) for appliances > 10,000 Btuh (3

kW) and < 50,000 Btuh (15 kW),

• 12 in (30 cm) for appliances > 50,000 Btuh (15

kW)

• 6 in (15 cm) for appliances < 10,000 Btuh (3

kW),

• 9 in (23 cm) for appliances > 10,000 Btuh (3

kW) and < 100,000 Btuh (30 kW),

• 36 in (91 cm) for appliances > 100,000 Btuh

(30 kW)

C= Clearance to permanently closed window.

0 in (0 cm) 0 in (0 cm)

D= Vertical Clearance to ventilated soffit located

above the terminal within a horizontal distance of

2 feet (61 cm) from the center line of the terminal.

12 in (30 cm) 12 in (30 cm)

E= Clearance to unventilated soffit.

12 in (30 cm) 12 in (30 cm)

F= Clearance to outside corner.

24 in (61 cm) 24 in (61 cm)

G= Clearance to inside corner.

18 in (46 cm) 18 in (46 cm)

H = Clearance to each side of center line extended

meter/regulator assembly. above

3 ft (91 cm) within a height of 15 ft (4.6 m) 3 ft (91 cm) within a height of 15 ft (4.6 m)

I = Clearance to service regulator vent outlet.

3 ft (91 cm) 3 ft (91 cm)

J = Clearance to nonmechanical air supply inlet to the

building or the combustion air inlet of any other

appliance..

• 6 in (15 cm) for appliances < 10,000 Btuh (3 kW),

• 9 in (23 cm) for appliances > 10,000 Btuh (3 kW)

and < 100,000 Btuh (30 kW),

• 36 in (91 cm) for appliances > 100,000 Btuh (30

kW)

• 6 in (15 cm) for appliances < 10,000 Btuh (3

kW),

• 9 in (23 cm) for appliances > 10,000 Btuh (3

kW) and < 50,000 Btuh (15 kW),

• 12 in (30 cm) for appliances > 50,000 Btuh

(15 kW)

K = Clearance to mechanical air supply inlet.

6 ft (1.83 m)

3 ft (91 cm) above if within 10 ft (3 m)

horizontally

L = Clearance above paved side walk or paved

driveway located on public property.

7 ft (2.13 m)

7 ft (2.13 m) for mechanical draft system

(Category I appliances); vents for Category II

and IV appliances cannot be located above public

walkways or other areas where condensate or

vapor can cause a nuisance or hazard

M = Clearance under veranda, porch, deck or balcony.

12 in (30 cm) ‡

12 in (30 cm)*

INSTALLATION

Direct Vent Terminal Clearances

In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code

In accordance with the current ANSI Z223.1/ NFPA 54 National Fuel Gas Code.

‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.

* Permitted only if veranda porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.

Follow local or National gas codes or latest edition of Fuel Gas Code, ANSI Z223.1/NFPA 54

• DO NOT terminate near soffit vents or crawl space or other area where condensate or vapor could create a nuisance

hazard or cause property damage.

• DO NOT locate the exhaust vent terminal where condensate or vapor could cause damage or could be detrimental to the

operation of regulators, relief valves, or other equipment.

• DO NOT locate the exhaust vent terminal over public area or walkways where condensate or vapor can cause nui sance or

hazard.

• DO NOT locate the vent termination in proximity to plants/shrubs.

INSTALLATION

VENT INSTALLATION – Before proceeding, make certain

you understand the procedure and cautions covered in the

section “Joining Pipes and Fittings.”

POWER VENT INSTALLATION – Power venting is where

the indoor air is used and the exhaust is vented to the

outside. Venting may be run horizontally through an

outside wall or vertically through a roof through using

either 2" (5.1 cm), 3" (7.6 cm), 4" (10.2 cm) diameter

PVC, ABS, CPVC or PP. This water heater is supplied with

a screened intake elbow and exhaust coupling referred to

as the air intake terminal and the exhaust vent terminal.

NOTE: Flexible PP vent kit is available for Power Vent

configurations, in 2" and 3" diameters. These kits should

be used for vertical venting only.

NOTICE:

Use of PVC cellular core (ASTM-F891), ABS Schedule

40, DWV cellular core (ASTM –F628), or Radel®

(polyphenylsulfone) in non-metallic venting systems is

prohibited.

In a horizontal application, it is important that condensate

not be allowed to buildup in the exhaust vent pipe. To

prevent this from happening, the pipe should be installed

with a slight upward slope of ¼” per foot. The vent

system must be supported every 5 feet of vertical run and

every 3 feet of horizontal run of vent pipe length.

Failure to properly support the vent piping with hangers

and clamps may result in damage to the water heater or

venting system.

FIXED

CLOSED

ERA

FIXE

CLOSED

The following information should be used for determining the proper location of the vent terminal for

direct vent water heaters.

VENT TERMINAL

AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

HORIZONTAL VENT TERMINAL LOCATION FOR POWER VENT

Canadian Installations

US Installations

A= Clearance above grade, veranda,

porch, deck or balcony.

12 inches (30 cm) 12 inches (30 cm)

B= Clearance to window or door that may

be opened.

6 inches (15 cm) for appliances < 10,000 Btuh (3

kW), 12 inches (30 cm) for

appliances > 10,000 Btuh (3kW) and

< 100,000 Btuh (30kW), 36 inches (91 cm) for

appliances > 100,000 Btuh (30kW).

4 feet (1.2 m) below or to side of opening; 1 foot

(300 mm) above opening.

C= Clearance to permanently closed

window.

0 in (0 cm) 0 in (0 cm)

D= Vertical Clearance to ventilated soffit

located above the terminal within a

horizontal distance of 2 feet (61 cm)

from the center line of the terminal.

12 in (30 cm) 12 in (30 cm)

E= Clearance to unventilated soffit. 12 in (30 cm) 12 in (30 cm)

F= Clearance to outside corner. 24 in (61 cm) 24 in (61 cm)

G= Clearance to inside corner. 18 in (46 cm) 18 in (46 cm)

1 In accordance with current CAN/CSA-B149.1 Installation Codes.

2 In accordance with current ANSI Z223.1/ NFPA 54 National Fuel Gas Code.

+ A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwell-

ings and serves both dwellings.

* "Clearance in accordance with local installation codes and the requirements of the gas supplier."

H = Clearance to each side of center line

extended meter/regulator assembly.

above

3 feet (91 cm) within a height 15 feet (4.57 m) above

the meter/regulator assembly.

3 ft (91 cm) within a height of 15 ft (4.6 m)

I = Clearance to service regulator vent

outlet.

3 feet (91 cm)

3 ft (91 cm)

J = Clearance to nonmechanical air supply

inlet to building or the combustion air

inlet to any other appliance..

6 inches (15 cm) for appliances < 10,000 Btuh (3

kW), 12 inches (30 cm) for

appliances > 10,000 Btuh (3kW) and

< 100,000 Btuh (30kW), 36 inches (91 cm) for

appliances > 100,000 Btuh (30kW).

4 feet (1.2 m) below or to side of opening; 1 foot

(300 m) above opening.

K = Clearance to mechanical air supply

inlet.

6 feet (1.83 m)

3 feet (91 cm) above if within 10 feet (3 m)

horizontally.

L = Clearance above paved side walk or

paved driveway located on public

property.

7 feet (2.13 m)+ 7 feet (2.13 m)+

M = Clearance under veranda, porch, deck

or balcony.

Not Allowed Not Allowed

INSTALLATION

Power Vent Terminal Clearances

2, 3 or 4 inch pipe

and ﬁttings

Support

Bracket

Every 3' Max.

45° Terminal

Raise horizontal pipe

upward 1/4 in. per foot

(10 mm per m) min.

• Connect 1/2 in. I.D., ﬂexible, PVC (or equivalent material), clear tubing to the

drain port.

NOTICE: The tubing must be of sufﬁcient length to reach a ﬂoor drain, outside

the building or other required condensate disposal termination requirements

(Refer to local codes).

• Loop the drain tube so that it has a circular trap and secure the top and bot-

tom of the loop with wire ties or plastic zip ties as shown. DO NOT restrict any

portion of the drain tube. The loop and all sections of the tube must not be

restricted or collapsed.

• Fill drain tube to prevent combustion gases from venting into the home.

• Route the drain tube to a ﬂoor drain or outside the building or refer to local

codes for any condensation requirements.

Wall

Water

Heater

Drain Pan

1 In. Max.

Typical Horizontal Direct Vent System

INSTALLATION

Drain

Tube

Noise Reducer

Blower Air Inlet

Connection

Water

Heater

Typical Vertical Direct Vent System Installation

24 in.

(61 cm)

Min.

Combustion Air-Inlet

Terminal

Exhaust

Vent

Terminal

-B-

-A-

-B-

.008

.010

"D"

Min. 12 in. (30 cm) for US and

Min. 18 in. (46 cm) for Canada

above Roof

Min. 12 in. (30.5 cm) above

anticipated snow level

Max. 24 in. (61 cm) above roof

without

additional support)

Terminals with 1/2 in.

(1.3 cm) Mesh

Protective Screen

Exercise discretion

in using protec-

tive screens in cold

climates to prevent

formation of ice

Elbow

Short Piece of Pipe

"D"

Combustion Air-Inlet

"D"

Terminals spacing for horizontal

or vertical venting.

Exhaust Vent

24" (61 cm) Min

(Support required).

90° Intake Terminal

Support Bracket

Roof

"D"

INSTALLATION

Direct Vent Vertical Vent Horizontal Intake

INSTALLATION

Roof

Wall

Roof

Wall

Direct Vent Horizontal Vent Vertical Intake

2, 3, or 4*

Inch Pipe

And Fittings

Slope horizontal pipe

downward 1/8 in. per

foot (10 mm per m) min.

45° Terminal

Wall

Drain

Tube

1 In. Max.

Support

Bracket

Every 3' Max.

Drain Pan

INSTALLATION

THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:

When venting cannot exit through the wall at a height greater than or equal to 12” (30.5 cm) (and above expected snow level)

from the ground, then the installation must be modified as shown below (see figure below).

90° Intake

Terminal

Exhaust

Terminal

"D"

Ground level

Ground

Level

1" (2.54 cm)

"D"

Min. of 12" (31 cm)

above grade.

Min. of 12" (31 cm)

above anticipated snow

level.

Max of 24" (61 cm) with-

out additional support

Typical Horizontal Power Vent System

IMPORTANT:

In cold weather climates

vent must slope back

towards water heaters.

Straight Exhaust Terminal

Support Bracket

Roof

Water

Heater

Recommended support bracket be

placed on horizontal run

Min. 12" (30.5 cm) for US

and Min 18" (46 cm) for

Canada above roof.

Min. of 12" (30.5 cm)

above anticipated snow

level.

Max. 24" (61 cm) above

roof without additional

support.

Typical Vertical Power Vent System Installation

Water Heater

Roof

Support Bracket

Exhaust Terminal

Alternate vertical venting with

exhaust vent turned down -

preferred for cold climates.

Recommended support bracket be

placed on horizontal run

Min. 12" (30.5 cm) for US

and Min 18" (46 cm) for

Canada above roof.

Min. of 12" (30.5 cm)

above anticipated snow

level.

Max. 24" (61 cm) above

roof without additional

support.

INSTALLATION

PROCEDURE

Improper installation, adjustment, service, or

maintenance can cause property damage, personal

injury, or death. Consult a qualified installer, service

agency, or gas supplier for information or assistance.

This kit must be used only for terminating this water

heater. DO NOT use this termination kit for any other

appliance. Using this kit on other appliances and/or

water heaters can result in property damage, personal

injury, or death.

NOTICE:

Concentric vent kit requires that the joints be cemented.

CAUTION:

DO NOT operate this water heater with the rain cap

removed or recirculation of combustion products may

occur. Water may also collect inside larger

combustion-air pipe and flow to the burner assembly.

Failure to follow this warning could result in product

damage, improper operation, personal injury or death.

DO NOT use field-supplied couplings to extend pipes.

Airflow restriction will occur and the water heater

pressure switches may cause intermittent problems.

Installation:

1. Become familiar with concentric vent kit parts (see chart above).

2. Determine the best location for the termination kit.

3. Cut the recommended diameter hole for the nominal pipe size called out in the charts above – Dim. “D”.

4. Partially assemble the vent kit by performing the following:

a. Cement concentric Y fitting to larger diameter pipe (see chart above).

b. Cement rain cap to smaller diameter pipe (see charts above).

PVC Intake/Combustion Air

"C"

"D"

"A"

PVC Vent/Exhaust

"C"

Kits for US

Concentric "Y"

Fitting

"D" Diameter Pipe

"E" Diameter Pipe

Rain Cap

"B"

Concentric Vent Terminal Installation

INSTALLATION

Nominal PVC Dimensions

“A” “B” “C” “D”

2" Vent Kit 33.5" 17.65" 2.68" 3.5"

3” Vent Kit 39.5” 22.38” 3.83” 4.5” *

4” Vent Kit 53.75" 34.8" 4" 6"

*Hole size for nominal 4” PVC would be 5" (12.7 cm)

WARNING

These instructions are intended as an aid to qualified service

personnel for proper installation, adjustment, and operation of

this kit. Read these instructions thoroughly before attempting

installation, adjustment, or operation. Failure to follow these

instructions can result in improper installation, adjustment,

service, or maintenance possibly resulting in fire, electrical

shock, property damage, personal injury, or death.

WARNING:

This kit is to be used only for vent & combustion air-inlet

termination for power direct vent gas water heaters. DO NOT

use this kit to terminate any other type of appliance. Failure

to follow this warning could result in fire, personal injury, or

death.

LOCATION:

The Concentric Vent & Combustion Air-Inlet Termination Kit can

be installed in a horizontal or vertical (roof) orientation. Before

installation procedures begin, determine the best location for

the termination kit.

IMPORTANT:

When installing the kit, consider the following when choosing

a location:

• Kit is positioned where vent gases will not damage

nearby structure.

• Kit is positioned so that wind will not cause combustion

products, leaves, snow, or other debris to enter the

combustion air-inlet.

• Kit is positioned where it will not get damaged by foreign

objects.

• Kit is positioned where vent gases will not be inhaled or

cause a nuisance.

NOTE: Ensure that the heights of the vent and/or combustion

air-inlet openings are at least 12" above the anticipated snow

level.

HORIZONTAL

INSTALLATION

STEP 1:

Cut the proper size opening (see "D" in chart) in the sidewall

and install the field supplied weather-seal boot/flashing for PVC

pipe.

STEP 2:

From inside, insert the combustion air-inlet pipe through the

seal boot so that a maximum of 1” clearance occurs between

the outside wall and the rain cap fins (see the following Figure).

Ensure that no insulation or debris accumulate in the pipe.

STEP 3:

Secure the combustion air-inlet pipe using a field supplied

perforated strap of a suitable type material (see Figure above).

STEP 4:

Assemble the vent pipe assembly by cleaning and cementing

the rain cap to the smaller diameter vent pipe.

Note: If field disassembly is desired for cleaning, a stainless

steel screw may be used to secure the rain cap to the PVC vent

pipe.

WARNING:

When using the alternate screw method, pre-drill a clearance

hole in the rain cap slightly larger than the screw and a pilot

hole in the vent pipe to prevent cracking of the PVC pipe.

Cracking of the PVC components will cause a failure of the

system, allowing combustion products to be recirculated.

Failure to follow this warning could result in personal injury of

death.

WARNING:

DO NOT operate the water heater with the rain cap and elbow

removed or recirculation of combustion products may occur.

The vent and combustion air-inlet systems may also take in

water, causing damage to the water heater. Failure to follow

this warning could result in damage to the unit, improper

operation, personal injury, or death.

STEP 5:

From the outside, slide the vent pipe assembly through the

combustion air-inlet pipe and cement the rain cap to the

combustion air-inlet pipe. From the inside, cement the "Y" fitting

to the combustion air-inlet pipe (refer to Figures in this page).

Vent Pipe Assembly

1" Maximum

Combustion

Air-Inlet to

Water Heater

Field Supplied

Strap

Exhaust

Vent from

Water

Heater

Min. of 12"

(30.5 cm)

above grade

or antici-

pated snow

level.

HORIZONTAL AIR INLET PIPE INSTALLATION

INSTALLATION

STEP 6:

Complete the installation of the remainder of the vent and

combustion air-inlet systems as required in this manual.

VERTICAL

INSTALLATION

STEP 1:

Cut a proper size opening (see "D" in chart) in the roof,

and install field-supplied weather-seal boot/flashing for

the larger PVC pipe.

STEP 2:

From inside, insert the larger diameter combustion

air-inlet pipe up through the seal boot, ensuring that

no insulation or debris accumulate in the pipe. Ensure

termination height is above the 12” minimum

clearance to combustion air inlet.

STEP 3:

Secure the combustion air-inlet pipe using a field supplied

perforated strap or a suitable type material. (see the

Vertical Air Inlet Pipe Installation Figure in this page).

STEP 4:

Assemble the vent pipe assembly by cleaning and

cementing the rain cap to the smaller diameter exhaust

pipe. Assemble the 90° elbow by cleaning and cementing

it to the rain cap. Assemble the field supplied PVC

connector and 90° elbow by cleaning and cementing them

together as shown in Vertical Air Inlet Pipe Installation

Figure on this page. The alternate screw method is not

necessary for the field supplied PVC parts.

NOTE: If field disassembly is desired for cleaning, a

stainless steel screw may be used to secure the rain cap

to the smaller diameter exhaust pipe.

WARNING:

When using the alternate screw method, pre-drill a

clearance hole in the rain cap slightly larger than

the screw and a pilot hole in the vent pipe to prevent

cracking of the PVC pipe. In a separate location, pre-

drill a slightly larger clearance hole in the 90° elbow and

a pilot hole in the rain cap for the screw being used at

that site. Cracking of the PVC components will cause a

failure of the system, allowing combustion products to be

recirculated. Failure to follow this warning could result in

personal injury of death.

WARNING:

DO NOT operate the water heater with the rain cap

removed or recirculation of combustion products may

occur. The vent air pipes may also take in water, causing

damage to the water heater. Failure to follow this

warning could result in damage to the unit, improper

operation, personal injury, or death.

STEP 5:

From the roof top, slide the vent pipe assembly down

through the intake pipe and cement the rain cap to the

intake pipe. From the inside, cement the "y" fitting to the

intake pipe (See Figure below).

Exhaust

Field Supplied

Strap

Roof

Combustion Air- to

Water Heater

Exhaust Vent From

Water Heater

(See next page for more details)

Field Supplied

PVC Connector

Field Supplied

90° Elbow

Min. 18" (46 cm)

above roof or

anticipated snow

level.

Min. 12"

(30.5 cm)

VERTICAL AIR INLET PIPE INSTALLATION

INSTALLATION

Alternative Vertical Vent Termination

Alternative vertical vent termination kits are commercially available. Please refer to the instruction sheet

packaged with the kit for complete installation instructions.

WARNING:

Under no circumstances should the exhaust pipe and the air intake pipe be connected together.

Support Hanger

Adjustable Roof Flashing

Support Clamp

Air Intake

Pipe

Exhaust Vent

Pipe

Minimum Clearance 18 inches above roof

Concentric Vent Termination

Upward slope 1/8” per foot

(10mm per meter) minimum

NOTE:

Ensure proper condensate management in all

vertical venting.

INSTALLATION

Alternative Horizontal Vent Installations

Alternative flat horizontal vent termination kits are commercially available for 2" and 3" pipes. Refer to

the instruction sheet packaged with the kit for complete installation instructions.

INSTALLATION

Flat Horizontal

Termination Kit

(this termination

can be rotated)

Exhaust

Vent

Flat

Termination

Kit

Wall

Air Intake

Vent

Air Intake

Pipe

Exhaust

Vent Pipe

Support Hanger

Upward Slope

to Termination

Inspection Access

Panel (Optional)

Inspection Access

Panel (Optional)

Ceiling

12" Minimum to

overhang

Maintain 12" minimum clearance above highest antici-

pated snow level or grade whichever is greater

1" Screws

(4 req.)

2" Screws

(4 req.)

Vent

Cap

Vent

Plate

Vent

Combustion

Air

A. Water Heater Location

❑ Close to vent locations

❑ Located indoors and protected from freezing temperatures

❑ Proper clearance from combustible surfaces

❑ Air supply free of corrosive elements and flammable vapors

❑ Sufficient room to service the heater

❑ Water heater protected from water damage

B. Water Supply

❑ Water heater completely filled

❑ Air purged from water heater and piping

❑ Water connections tight and free of leak

C. Gas Supply

❑ Gas line equipped with shut-off valve, union, and sediment

trap

❑ Minimum pipe size 1/2"; No flex pipe

❑ Soap and water solution used to check all

connections for gas leaks

❑ Approved pipe joint compound used

D. Relief Valve

❑ Discharge line run to open drain

❑ Discharge line protected from freezing

E. Venting

❑ Water heater vented separately from all other appliances

❑ All vent and air intake pipe connections are secure

❑ Vent and air intake pipes properly supported at regular

intervals

❑ Precaution taken to avoid moisture damage around vent

termination

❑ Drain tube attached to sound damper if needed. If not,

ensure cap is in place

F. Condensate

❑ Condensate trap installed and primed.

❑ Condensate neutralizer installed

G. Wiring

❑ Correct power supply (120VAC)

❑ Electrical connections are tight

❑ Water heater is properly grounded with proper polarity.

INSTALLATION CHECK LIST

For maximum pipe capacity for installations in Canada, refer to CAN/CSA B149.1. For natural gas, refer to Tables A.1 through A.17. For propane (LP) gas, refer to Tables

B.1 through B.12.

Nominal Iron Pipe Size

Inches

Internal Diameter

Inches

Length of Pipe, Feet

10 20 30 40 50 60 70 80 90 100 125 150 175 200

1/2 0.622 132 90 73 62 55 50 46 43 40 38 34 31 28 26

3/4 .824 278 190 152 130 115 105 96 90 84 79 72 64 59 55

1 1.049 520 350 285 245 215 195 180 170 160 150 130 120 110 100

1 1/4 1.380 1,050 730 590 500 440 400 370 350 320 305 275 250 225 210

1 1/2 1.610 1,600 1,100 890 760 670 610 560 530 490 460 410 380 350 320

2 2.067 3,050 2,100 1,650 1,450 1,270 1,150 1,050 990 930 870 780 710 650 610

2 1/2 2.469 4,800 3,300 2,700 2,300 2,000 1,850 1,700 1,600 1,500 1,400 1,250 1,130 1,050 980

3 3.068 8,500 5,900 4,700 4,100 3,600 3,250 3,000 2,800 2,600 2,500 2,200 2,000 1,850 1,700

4 4.026 17,500 12,000 9,700 8,300 7,400 6,800 6,200 5,800 5,400 5,100 4,500 4,100 3,800 3,500

Length Pipe Table

For U.S. Installations

Maximum Capacity of Pipe in Cubic Feet of Gas per Hour for Gas Pressures of 0.5 psig or Less and a Pressure Drop of 0.3 Inch Water Column

Based on a 0.60 Specific Gravity Natural Gas; If 1.5 Specific Gravity L.P. Gas is used, multiply capacity by 0.63

OPERATION

Before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels

and warnings on the water heater and printed in this manual. Failure to DO so can result in unsafe operation of the water heater

resulting in property damage, bodily injury, or death. Should you have any problems reading or understanding the instructions in

this manual, STOP, and get help from a qualified person.

Do not use

, and follow the gas supplier’s

WITH THE SWITCH

instructions.

any phone in your building.

. Call

(49°C.)

A. DO turn off manual gas shut-off valve if water heater has

been subjected to over heating, fire, flood, physical

damage or if gas supply fails to shut off.

B. DO NOT turn on water heater unless it is filled with water.

C. DO NOT turn on water heater if cold water supply shut-off

valve is closed.

D. DO NOT store or use gasoline or other flammable vapors

and liquids, such as adhesives or paint thinner, in vicinity

of this or any other appliance. If such flammables must be

used, open doors and windows for ventilation, and all gas

burning appliances in vicinity should be shut off, including

their pilot lights, to avoid vapors igniting.

NOTICE: Flammable vapors may be drawn by air currents from

surrounding areas to the water heater.

E. DO NOT allow combustible materials such as newspaper,

rags or mops to accumulate near water heater.

F. If there is any difficulty in understanding or following

the OPERATION or MAINTENANCE instructions, it is

recommended that a qualified person or serviceman

perform the work.

WARNING:

Hydrogen gas can be produced in a hot water system served

by this water heater that has not been used for a long period

of time (generally two weeks or more). HYDROGEN GAS IS

EXTREMELY FLAMMABLE!! To dissipate such gas and to

reduce risk of injury, it is recommended that the hot water

faucet be opened for several minutes at the kitchen sink

before using any electrical appliance connected to the hot

water system. If hydrogen is present, there will probably be

an unusual sound such as air escaping through the pipe as

the water begins to flow. DO NOT smoke or use an open flame

near the faucet at the time it is open.

SAFETY PRECAUTIONS

1. TEMPERATURE SETTINGS — The temperature is adjusted

to the lowest setting when shipped from the factory. To meet

residential water use needs, the temperature on this water

heater is adjustable up to 160°F (71° C). However, water

temperatures over 125°F (52°C) can cause severe burns

instantly or death from scalds. This is the preferred starting

point for setting the control for supplying general purpose hot

water.

Safety and energy conservation are factors to be considered

when setting the water temperature. The most energy efficient

operation will result when the temperature setting is the lowest

that satisfies the needs consistent with the application.

DANGER:

Hotter water increases the potential for hot water SCALDS.

When this water heater is supplying general purpose hot water

requirements for individuals, a thermostatically controlled

mixing valve for reducing point of use water temperature

is recommended. Contact a licensed plumber or the local

plumbing authority for further information.

Outlet water temperature will vary during normal operating

cycles. Reliable temperature readings should be taken shortly

after main burner cycles off during a period of little or no use.

2. EMERGENCY SHUTDOWN —

WARNING:

Should overheating occur or the gas supply fail to shut off,

turn off the manual gas control valve to the appliance.

DO NOT use this appliance if any part has been under water.

Immediately call a qualified service technician to inspect the

appliance and to replace any part of the control system or any

gas control which has been under water.

If the water heater has been subjected to fire or physical

damage, turn off gas at the manual gas control (shut-off)

valve. DO NOT operate the water heater again until it has been

checked out by a qualified

service technician.

OPERATION

NAVIGATING THE HOME SCREEN:

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

Operating Status

Setting Menu

Button

Status Button

Service Menu

Button

Enable/Disable

Button

Rapid Temperature

Adjustment

Wifi Indicator

and Settings

Health Indicator

Icons

Temperature

Setting

Temperature

Adjustment

USER INTERFACE

STARTUP

Once power is applied to the water heater and the On button is

pressed, the Startup Wizard on the LCD will go over the below

features:

1. Setting of Time and Date

2. Setting Hours of Operation for the business

3. Wifi Setup

Follow the on-screen instructions to complete setup. Some of

these items can be skipped if a later setup is desired.

ENABLING (TURNING ON) THE UNIT

TEMPERATURE ADJUSTMENT

Tank temperature will be maintained according to the setting

on the home screen. If the water temperature setting needs

adjustment, use the arrows on the display to select desired

temperature.

The display also has a rapid temperature adjustment feature

that corresponds to the below temperature settings.

Warm: 110°F (43°C)

Hot: 140°F (49°C)

Very hot: 160°F (71°C)

Touching the text ‘warm’, ‘hot’, or ‘very hot’ will adjust the

temperature to the above temperature setting.

SETTING MENU

The settings function on the water heater display allows access

to the basic settings, configurations, schedules, and the time/

date.

Status: Water Heater Disabled

Water Heater Disabled

StatusSettings Enable

Service

Press the enable button to

turn the water heater on

Pressing the settings button will allow

access to water heater settings

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

settings

wifi setup

time/date

basic configs schedule

DANGER:

Hotter water increases the potential for hot water SCALDS.

BASIC SETTINGS: The basic settings in your water heater can

allow you to change the temperature unit, screen adjustment

lock/unlock, enabling/disabling the alarm beep, and your

EcoNet network instance. Simply select the setting by tapping

it, and press the Up/Down arrows to make adjustments. WiFi

setup can be accessed from this screen as well.

CONFIGURATION SETTINGS: The configuration settings on your

water heater allows you to control the heating mode, setting the

recirculation pump, auxiliary input/output, enabling/disabling

modulation, and how your hot water heater reacts to a detected

leak.

The setting can be highlighted by tapping and then adjusted

with the up/down arrows.

The Heating Mode can be set as Normal or MaxMode™.

MaxMode™ shall be used when there is an increased demand

for hot water. The heater provides a 15% increase in hot water

availability by going into Heating mode sooner following a

draw.

After 2 hours of non-heating, the heater will operate like

normal. Once a heating demand is present, the heater will go

back into MaxMode™. This pattern continues for a duration of

72 hours, at which time the heater will return to Normal mode.

Recirculation Pump Configuration can be set to the following:

Off - use this setting when the recirculation pump is not in use,

or not installed.

On - use this setting to manually turn on the pump. Useful for

testing the setup. Not recommended for general use.

Schedule - The recirculation pump will run on a 15 min On/15

min Off cycle whenever the heater is set to the "Home" mode

(see SCHEDULE SETTINGS). When the heater is in an Away

mode, the recirculation pump will not run.

On Demand - The recirculation pump can be triggered to run

from the mobile app. When triggered from the app, the pump

will run for 15 min.

This water heater has a modulation algorithm that can be

disabled by tapping ‘No’ in front of Modulation Disabled and

making adjustments by tapping the up/down buttons.

SCHEDULE SETTINGS: The schedule settings allows you to

control when your hot water heater will be enabled/disabled.

Your heater allows you to select a day you want and set the

times when the heater will be in use. You can also copy/paste

the day you select and apply it to other days as well.

TIME/DATE SETTINGS: By selecting time/date you can change

the water heaters current set time. You can also select the

daylight savings time function to automatically adjust the time

for daylight savings.

STATUS MENU

The Status screen provides information on the current operating

status, diagnostics and sensors. This screen also provides

information on the WiFi status.

basic settings

Temperature Display

Screen Adjustment Lock?

Beep On Alarm

EcoNet Network Instance

Elevation

Fahrenheit

Enabled

Normal

config. settings

Heating Mode

Recirc. Pump Config

Aux Output Select

When Leak Detected

Shutoff Valve Config

Max

On Demand

Recirc. Pump

Alarm Only

Not Installed

schedule settings

Wed. Jan.11, 2:49 pm

Morning:

Night:

Mon.

08:00 am

06:00 pm

Time

Occupied

Schedule

Tue.

copy

day

paste

day

cancel

Wed. Thu. Fri. Sat. Sun.

set to time and date

D.S.T.

enabled

10 54 am

Jan. 11 2017

The up/down arrows enable

you to adjust the time of the

period run times.

By selecting a day and then accessing

the copy function, you can paste that

day’s settings onto other

The up/down arrows allow

you to control the time,

month, day, and year.

The D.S.T function allows you

to adjust the time for daylight

savings time.

USER INTERFACE

By pressing the Status button, you will be

taken to a prompt showing the state of your

water heater’s many features.

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

WI-FI STATUS: After selecting the Wi-Fi status function, you

will be brought to a prompt showing you the current state of

your water heater’s Wi-Fi and the ability to set-up your water

heater’s Wi-Fi.

MORE FUNCTION: Selecting the more function your heater will

bring you to a prompt showing you the current temperatures of

the lower/upper tank, Flue temperature, ECO switch state, and

Auxiliary relay state.

SERVICE MENU

The service screen provides information on the product

description, alarms, system health, and service alerts. Alarm

details can be found in the "Before You Call Service" section of

the manual.

In case there is an active alarm, the "Service" button will blink

on the home screen. Pressing the "Service" button will show a

new screen containing the active alarms and alarm history.

By selecting the service function,

you will be taken to a prompt

giving you access to the heater’s

alarms, health, and alerts.

By selecting Wi-Fi status, you can

access the status of your water

heater’s Wi-Fi and even set it up.

By selecting more, you can

access the temperatures of your

water heater, ECO switch state,

and auxiliary switch state.

Selecting the Wi-Fi setup function will bring you

to a prompt allowing you to connect your water

heater to your home Wi-Fi.

Current Alarms and Alarm

History allows you to

access any current alarms

that have been tripped

and view a list of previous

alarms.

System Health

will show you the

status of the tank’s

combustion health

and overall tank

health.

Service Alerts will allow

you to set how often you

want to be alerted to

check venting, clean the

drain trap, replace the

neutralizer, and to drain

and inspect the tank.

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

Status: Water Heater Disabled

Air Intake Press. Switch

Exhaust Press. Switch

Current Fan Speed

Flame Current

Closed

0RPM

0.0 uA

morewifi status

wifi status

WiFi Device Status............

WiFi Signal Strength [dBm]....

Econer wifi SW Version........

WiFi Module SW Version........

MAC Address...................

SSID..........................

IP Address ...................

Subnet Mask...................

Gateway.......................

Ready To Connect

RH-WIFI-02-01-05

14.76.36.P103

F0-03-8C-B3-C6-CC

wifi setup

service

Product Model Number:

Product Serial Number:

Software Version Number: WH-DRG1-00-00-86

current

alarms

alarm

history

system

health

service

alerts

USER INTERFACE

ALARMS: The current alarms function allows you to see any

problems that have been detected by your water heater. Also,

by selecting on the current alarm you can press “more info” to

read more on the current problem of your water heater. Alarm

history allows you to see any of the previous alarms that have

gone off in the past and give you the ability to clear those

previous alarms.

ALARM HISTORY: The alarm history function allows you to see

the previous alarms that have been detected by your water

heater in the past.

SYSTEM HEALTH: The system health function allows you to see

the current health of your hot water heater’s combustion health.

The combustion health has three levels of health:

SERVICE ALERTS: By selecting the Service alerts function you

will be able to adjust how often you want to be alerted to drain

and inspect the tank, clean the drain trap, check the venting,

and to replace the neutralizer.

current alarms

A007 Exhaust Switch open. Check Wiring/Venting

info

clear

By selecting “more info” you

can be given a more in-depth

explanation of the current alarm.

The health of your system’s combustion system and overall health

can be seen here. This screen be accessed by tapping the health

indicator icons on the home screen.

This symbol will appear on your home

screen if your combustion health is

critical. Pressing this icon will take the

user to the Health Status Screen

By selecting an option and then using the up

and down arrow, you can set how often you’d

like to be alerted to system maintenance.

Trouble-Shooting

A007 Exhaust Switch open. Check Wiring/Venting

Check switch wiring and venting. If problem

persist, please contact technical support or

service provider.

alarm history

14:48:13 01/11/17 A007 Echaust Switch open. Check wiring/venting

clear

COMBUSTION HEALTH:

1. Normal operation - no action needed

2. Begin planning for service and/or replacement.

3. Needs Servicing - contact your service provider

system health

(typical 10K cyc/yr)

(typical 2K hrs/yr)

Combustion Health Status: Operating Normally

Lifetime Heating Cycles:

Lifetime Run Time Hours:

0.0

baseline init

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

USER INTERFACE

Properly maintained, this water heater will provide years of

dependable, trouble free service. It is strongly

suggested that a regular routine maintenance program

be established and followed by the owner. It is further

recommended that a periodic inspection of the relief valve and

venting system should be made by service technicians qualified

in gas appliance repair.

1. ROUTINE PREVENTIVE MAINTENANCE

A. PRESSURE SWITCH — Inspect the inlet to the

pressure switch and the tubing for debris or

blockage. Clean out the tubing periodically to

prevent buildup of debris.

B. CONDENSATE TRAP — Check for blockages.

C. ELECTRICAL CONNECTIONS — Periodic inspection of all

electrical connections and wiring conditions.

CAUTION:

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause

improper and dangerous operation.

CAUTION:

VERIFY PROPER OPERATION AFTER SERVICING !

Make certain all power to the water heater is turned "OFF"

before performing any maintenance or inspection work on this

water heater.

Before manually operating the relief valve, make certain no one

will be exposed to the danger of coming in contact with the hot

water released by this valve. The water may be hot enough to

create a SCALD hazard. The water released should be directed

to a suitable drain to prevent injury or damage.

NOTICE: If the temperature and pressure relief valve on the

water heater discharges periodically, this may be due to

thermal expansion in a “closed” water system. Contact the

water supplier or local plumbing inspector on how to correct

this. DO NOT plug the relief valve outlet.

E. TANK— Good maintenance requires that the tank be cleaned

of deposits. Unless the water supply is soft (0 to 5 grains

hardness), scale or lime deposits will accumulate in the

tank. Hard water scale is deposited at an increasingly

high rate in proportion to increased water temperature.

Accumulation of these deposits may reduce efficiency, and

shorten the life of the water heater.

Drain few quarts of water from the water heaters tank every

month to clean the tank off these deposits.

F. SEASONAL OPERATION - If the water heater is to remain idle

for an extended period (60 days or more) the heater should

be turned off. The water heater and piping should be drained

if they might be subjected to freezing temperatures. It is

recommended that the water heater's operation is thoroughly

checked (by a qualified service technician) before it is placed

back in service. NOTICE: Refer to the Hydrogen Gas

caution notation on "Safety Precautions" section of this

manual.

G. VENTING SYSTEM — Inspect the venting system at least

yearly to make certain the passageways are free and

unobstructed, and that the vent connector from the water

heater’s blower assembly is properly positioned and securely

attached. Remove any obstructions in the vent connector or

vent terminal.

MAINTENANCE

Troubleshooting Tips

Save time and money! Review the charts on the following pages first and you may not need to call for service.

Problem Possible Causes What To DO

Display not on

No power to the unit

Check the breaker to the unit, the on/off switch, and the fuse

on the ignition control board.

Harness from control board disconnected Make sure that the wire harness to J4 on the ignition control

board is still connected.

Blower does not run No power to blower motor Verify power to the control board and that all harnesses to

the blower are properly installed. Make sure that there is no

damage the harnesses or connectors.

Unable to light

the main burner

Air in gas line Let the unit cycle at least 3 times to remove air from the

gas line. If the unit does not try to light, contact a qualified

service technician to purge the air from the gas line.

Manual gas shut-off

valve(s) not open

Check to make sure that all manual shut-off valves between

the unit and the gas line are open.

Blocked inlet or exhaust vent pipe Contact a qualified service technician to evaluate vent pipes

for a blockage.

Pressure switch

Make sure the pressure switch hoses are not "kinked" or

disconnected.

Blocked inlet or outlet vent systems will cause pressure

switch to shut off the unit. Contact a qualified service

technician to evaluate the vent system.

Wire connection not fully secured Contact a qualified service technician to confirm wire

connections.

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

If one of the health indicators is blinking on the home screen or

the service icon is blinking there is an issue with the operation

of your water heater. Pressing the service icon will allow you

to look at Current Alarms (and Alerts), Alarm History, and Unit

Health screens for issues that need attention. Pressing the

blinking health indicator will show the health screen.

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

BEFORE YOU CALL FOR SERVICE…

Troubleshooting Tips

Save time and money! Review the charts on the following pages first and you may not need to call for service.

Problem Possible Cause What To DO

Unable to light

the main burner

Gas control problem Contact a qualified service technician.

Unit or electrical supply line not properly

grounded

Verify that the electrical supply line and unit have

proper ground connection.

Main burner does not stay lit

Burner flame not contacting sensor rod.

Call a qualified service technician to review flame

rectification.

Unit or electrical supply line not properly

grounded

Verify the electrical supply line and unit have

proper ground connection.

Not enough or no hot water

Water usage exceeded the capacity

Wait for the water heater to recover after an

abnormal demand of the water heater.

Low gas pressure Check the gas supply pressure.

Water heater set point is set too low

See the "User Interface" section of this manual to

the set point temperature.

Leaking or open hot water faucets Make sure all faucets are closed.

"ON/OFF" switch turned off Turn the switch to the "ON" position.

Colder supply water

Incoming water temperature might be lower than

when the unit was initially installed. This will

require a longer heat up cycle.

Burner not staying on Refer to the "Main Burner" section of this manual.

Water is too hot The water heater set point is set too high

See the "User Interface" section of this manual to

the set point temperature.

CAUTION:

Make certain power to the water heater is “OFF” before removing the protective cover FOR ANY REASON.

CAUTION:

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

VERIFY PROPER OPERATION AFTER SERVICING!

CAUTION:

For your safety, DO NOT attempt repair of gas piping, gas control burner, vent connectors or other safety devices. Refer repairs to

qualified service personnel.

NOTE: Training Manual is available through the Technical Services Department for a more detailed troubleshooting and repair

guide.

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

A001

Ignition lockout due to a total of 9 consecutive failed

ignitions. This will disable the heater.

A001 Ignition lockout.

->Clear error code by turning the unit off/on. If

problem persists, contact technical support or service

provider.

A002

Flame not stable lockout. Lost flame three times

during one heat cycle. This will disable the heater.

A002 Flame is not stable.

->Clear error code by turning the unit off/on. If

problem persists, contact technical support or service

provider.

A003

The intake pressure switch was detected open when

the blower was running. This will disable the heater.

A003 Intake Switch open. Check Wiring/Venting

->Check switch wiring and venting. If problem

persists, contact technical support or service provider.

A004

The proof of air flow switch was detected open during

heating operation. This will disable the heater.

A004 PoF Switch error H. Check Blower/Wiring.

->Check switch wiring and venting. If problem

persists, contact technical support or service provider.

A005

The proof of air flow switch was detected open during

pre-purge operation. This will disable the heater.

A005 PoF Switch error E. Check Blower/Wiring.

->Check switch wiring and venting. If problem

persists, contact technical support or service provider.

A006

The proof of air flow switch was detected open during

post purge operation.

A006 PoF Switch error P. Check Blower/Wiring.

->Check switch wiring and venting. If problem

persists, contact technical support or service provider.

A007

Exhaust flue pressure switch was detected open during

heating. This will disable the heater.

A007 Exhaust Switch open. Check Wiring/Venting

->Check switch wiring and venting. If problem

persists, contact technical support or service provider.

A008

The proof of air flow pressure switch was detected

closed before the blower started operation. This will

disable the heater.

A008 PoF Switch/Blower mismatch. Call Tech Svc

->The Proof of Fan pressure switch is closed when

the blower is off. Contact technical support or service

provider.

A010

Ignition Control Test Failure during End of Line (EOL)

test

A010 Ignition Control Test Failure

-> End of Line (EOL) test failure. Unit disabled.

A012 Flame Detected During Standby/Disabled Mode

A012

->Clear error code by turning the unit off and on. If

problem persists contact technical support or service

provider

BEFORE YOU CALL FOR SERVICE…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

A016

Energy Cutout (ECO) switch is open. This will disable

the heater.

A016 High Tank Temperature. Call Tech Service.

->Clear error code by pressing clear button. Refer

to use and care manual for troubleshooting, or contact

technical support.

A017

Flue (exhaust) gas temperature has exceeded 155°F.

This will disable the heater.

A017 High Flue Temp. Recycle unit ON/OFF.

->Blower will continue to run until exhaust

temperature has decreased. If problem persists contact

technical support.

A018

Flue temperature sensor (thermistor) detected open.

This will disable the heater.

A018 Flue Temp Sensor open. Check wiring.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

A019

Flue temperature sensor (thermistor) detected short

circuited. This will disable the heater.

A019 Flue Temp Sensor shorted. Call Tech Svc.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

T020

Lower tank (inlet) temperature sensor (thermistor)

detected open.

T020 Lower Tank Sensor open. Check wiring.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

T021

Lower tank (inlet) temperature sensor (thermistor)

detected short circuited.

T021 Lower Tank Sensor shorted. Call Tech Svc.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

A022

Upper tank temperature sensor detected open. This

will disable the heater.

A022 Upper Tank Sensor open. Check wiring.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

A023

Upper tank temperature has exceeded 205°F. This will

disable the heater.

A023 Upper Tank temp. too hot. Call Tech Svc.

->Clear error code by pressing clear button. Refer

to use and care manual for troubleshooting, or contact

technical support.

A024

Upper tank temperature sensor detected short

circuited. This will disable the heater.

A024 Upper Tank sensor shorted. Call Tech Svc.

->Check wiring to sensor. If condition persists refer

to use and care manual or contact technical support.

BEFORE YOU CALL FOR SERVICE…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

A025

Control does not detect blower RPM. This will disable

the heater.

A025 No Blower RPM feedback. Call Tech Service

->Contact technical support or service provider.

A026

Blower RPM feedback (actual RPM) is ≥300 RPM from

desired RPM for > 1 minute.

A026 Blower expected RPM vs actual RPM mismatch

->Contact technical support or service provider.

A027

Flame current detected prior to opening gas valve.

This will disable the heater.

A027 Flame present before ignit. Call Tech Svc

->Clear error code by turning the unit off and on.

If problem persists please contact technical support or

service provider.

A028

Flame current detected 10 seconds after closing gas

valve. This will disable the heater.

A028 Flame present w/o heating. Call Tech Svc.

->Clear error code by turning the unit off and on.

If problem persists please contact technical support or

service provider.

T029 Unit did not light. T029 Failed ignition. Retrying.

A030 Unit lost flame. A030 Flame lost during heating. Retrying.

T032

Lower (inlet) thermistor analog to digital converter

fault.

T032 Lower Tank temp A/D error. Call Tech Svc.

->If problem persists, please contact technical

support or service provider.

A033

Exhaust flue thermistor analog to digital converter

fault. This will disable the heater.

A033 Flue sensor A/D error. Call Tech Service.

->If problem persists, please contact technical

support or service provider.

A034

Upper tank thermistor analog to digital converter fault.

This will disable the heater.

A034 Upper Tank temp A/D error. Call Tech Svc.

->If problem persists, please contact technical

support or service provider.

T035

Gas relay #1 contacts did not close. The unit

will continue to try and close the relay to initiate

combustion.

T035 Gas Relay 1 stuck open. Call Tech Service

->If problem persists, please contact technical

support or service provider.

A036

Gas relay #1 stuck closed. This could inadvertently

allow the gas valve to open. This will disable the

heater.

A036 Gas Relay 1 stuck closed. Call Tech Svc.

->If problem persists, please contact technical

support or service provider.

A037

Gas relay #2 contacts failed to properly close. This can

cause gas valve cycling and gas buildup in the burn

chamber. This will disable the heater.

A037 Gas Relay 2 stuck open. Call Tech Service

->If problem persists, please contact technical

support or service provider.

BEFORE YOU CALL FOR SERVICE…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

A038

Gas relay #2 stuck closed. This could inadvertently

allow the gas valve to open. This will disable the

heater.

A038 Gas Relay 2 stuck closed. Call Tech Svc.

->If problem persists, please contact technical

support or service provider.

A039

This is a control board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A039 Flame sense cct fault. Call Tech Service

->If problem persists, please contact technical

support or service provider.

A040

This is a control board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A040 Controller RAM fault. Call Tech Service.

->If problem persists, please contact technical

support or service provider.

A041

This is a control board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A041 Controller ROM fault. Call Tech Service.

->If problem persists, please contact technical

support or service provider.

A042

This is a control board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A042 Controller EEPROM fault. Call Tech Svc.

->If problem persists, please contact technical

support or service provider.

A043

This is a control board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A043 IC Program execution fault. Call Tech Svc

->If problem persists, please contact technical

support or service provider.

A044

Input power frequency not 60 Hz. (outside allowable

deviation). This will disable the heater.

A044 Processor Clock/Line Frequency Disagree

->If problem persists, please contact technical

support or service provider.

A101

This is a display board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A101 Configuration Data Restore Failure

->Initialization of the control system failed at

startup. Please contact technical support or service

provider.

A102 Set the internal clock time.

A102 Time Clock needs to be programmed

->Go to Settings, select time/date menu and set

the time and date.

A103

This is a display board hardware fault and requires

control board replacement if persistent. This will

disable the heater.

A103 Time Clock not advancing time properly

->contact your qualified service provider.

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

A104

Presence of water detected by the leak sensor in the

bottom pan. If water is seen locate source and take

appropriate action to correct the issue. This may

disable the heater based on configuration settings.

A104 Water Leak Detected

->The presence of water has been detected by the

control. Please contact a qualified service provider.

T105

Check to see if leak sensor is installed in the bottom

pan. Check wiring on connector P11 of the ignition

control board.

T105 Water Leak Sensor Not Installed

->Check water leak sensor connection. Refer to

use and care manual for troubleshooting, or contact

technical support.

A108

Communication lost between the display board and the

ignition control board. The ignition control board will

continue to operate the heater using the last known

configuration settings. Check wiring between the

display and P5 of the ignition control board.

A108 Ignition Board Communication Failure

->Communications lost with ignition control board.

If problem persists, contact technical support or

service provider.

A110

Monthly test of automatic shutoff valve (premium

models only) was not completed properly. The valve

did not close in the allotted time.

A110 Shutoff Valve Test Close Error

->Auto Shutoff valve failed to close during test

cycle. Please contact technical support or service

provider.

A111

Monthly test of automatic shutoff valve (premium

models only) was not completed properly. The valve

did not open in the allotted time. This will disable the

heater.

A111 Shutoff Valve Test Open Error

->Water heater has been disabled. Manually open

valve. Contact technical support or service provider.

A112

Automatic shutoff valve (premium models only) is

closed. This will disable the heater.

A112 Shutoff Valve Not Open: Heating Disabled

->Manually open valve if no water detected or if

unit is not being serviced. Contact technical support or

service provider.

T113

Peak flame rod current has deviated from the startup

average. This is indicative of degradation of the flame

rod (dirty, sooty). It needs to be cleaned and inspected

T113 Flame Rod Degraded and Needs Servicing

->Clean or replace per use and care manual.

Please contact technical support for assistance.

T114

Peak flame rod current has deviated from the startup

average by a significant amount. Clean and inspect

flame rod. Replace if necessary.

T114 Flame Rod Degraded and Needs Servicing

->Clean or replace per use and care manual.

Contact technical support for assistance.

T115

Monitored characteristics of the combustion system

indicate degraded performance. Combustion system

needs to be inspected and serviced.

T115 Combustion Health Degraded: Needs Service

->Combustion system performance is degraded.

Contact technical support or service provider for

assistance.

T116

Monitored characteristics of the combustion system

indicate severely degraded performance. Combustion

system needs to be inspected and serviced.

T116 Combustion Health Degraded. Needs Service

->Clear error code by pressing clear button. Refer

to use and care manual for troubleshooting, or contact

technical support.

BEFORE YOU CALL FOR SERVICE…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

T117

Periodic maintenance, inspection, and upkeep on the

unit.

T117 Time to Drain and Inspect Tank

->Refer to the use and care manual for

instructions, or contact technical support or service

provider.

T118

Periodic maintenance, inspection, and upkeep on the

unit.

T118 Time to Check Venting for Debris

->Refer to the use and care manual for

information, or contact technical support or service

provider.

T119

Periodic maintenance, inspection, and upkeep on the

unit.

T119 Time to Clean Out the Condensate Drain Trap

->Refer to the use and care manual for instructions

and locations. Call technical support or service

provider if necessary.

T120

Periodic maintenance, inspection, and upkeep on the

unit.

T120 Time to Replace the Neutralizer

->Clear error code by pressing clear button. Refer

to use and care manual for troubleshooting, or contact

technical support.

A143

The switch information on the Shutoff Valve is

indicating incorrect information such as both switches

are OPEN or both switches are CLOSED.

A143 Shutoff Valve Inputs in Error

->Manually open valve if no water detected or if

unit is not being serviced. Contact technical support or

service provider.

A200

Software versions between the Display Control and

Ignition Control are incompatible.

A200 Incompatible Ignition Control/Display Error

->The ignition control and display are incompatible

with each other. Contact technical support.

T504

WiFi chip communication timing error. This doesn't

mean the chip has failed.

T504 Wifi Chip Communication Error

->Refer to the use and care manual for

information, or contact technical support or service

provider.

BEFORE YOU CALL FOR SERVICE…

REPLACEMENT PARTS

Instructions For Placing a Parts Order

All parts orders should include:

The model and serial number of the water heater

from the rating plate.

Specify type of gas (natural or LP) as marked on

the rating plate.

Part description (as noted below) and number of

parts desired.

CAUTION

For your safety DO NOT attempt repair of gas piping, gas

control burner, vent connectors or other safety devices.

Refer repairs to qualified service personnel.

Ignition Control Flame Sensor

Gas Valve

Blower

Spark Igniter

Burner

Noise Reducer

Rubber Connector

Side Panel

Display

Transformer

Anode Heat

Trap Outlet

Drain Valve

Condensate Drain

Lower Thermistor

Temperature Sensor

Upper Thermistor / ECO

Temperature and Pressure Relief Valve

Inlet Heat Trap

Intake Pressure Switch

Proof

of Fan

Switch

Exhaust Pressure Switch

Leak Sensor

WIRING AND SCHEMATIC DIAGRAMS

NOTES

1. Should you have any questions about your new water heater,

or if it requires adjustment, repair, or routine maintenance,

it is suggested that you first contact your installer, plumbing

contractor or

previously agreed upon service agency. In the event that the

firm has moved, or is unavailable, refer to the telephone

directory commercial listings or local utility for qualified

service assistance.

2. Should your problem not be solved to your

complete satisfaction, you should then contact the

Manufacturer’s National Service Department at one of the

following addresses:

Rheem Manufacturing Co., Water Heater Division

ATTN: Technical Service

800 Interstate Park Drive

Montgomery, AL 36109

Wholesale: 1-800-432-8373

Retail: 1-866-279-4566

When contacting the manufacturer, the following information

should be made available:

a. Model and serial numbers of the water heater as shown on

the rating plate attached to the jacket of the heater.

b. Address where the water heater is located and can be seen.

c. Name and address of the installer and any service agency

who performed service on the water

heater.

d. Date of original installation and dates any service work was

performed.

e. Details of the problem as you can best describe them.

f. List of people, with dates, who have been

contacted regarding your problem.

HOW TO OBTAIN SERVICE ASSISTANCE

The Commonwealth of Massachusetts requires compliance with regulation 5.08: Modifications to

NFPA-54, Chapter 10 : 248 CMR 4.00 and 5.00 for installation of through – the – wall vented gas

appliances as follows:

(1) Revise NFPA-54 section 10.5.4.2 by adding a second exception as follows:

Existing chimneys shall be permitted to have their use continued when a gas conversion burner is

installed, and shall be equipped with a manually reset device that will automatically shut off the gas

to the burner in the event of a sustained back-draft.

(2) Revise 10.8.3 by adding the following additional requirements:

(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building

or structure used in whole or in part for residential purposes, including those owned or operated

by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet

above finished grade in the area of the venting, including but not limited to decks and porches, the

following requirements shall be satisfied:

1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side

wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe that

a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor

level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall

observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed

on each additional level of the dwelling, building or structure served by the side wall horizontal

vented gas fueled equipment. It shall be the responsibility of the property owner to secure the

services of qualified licensed professionals for the installation of hard wired carbon monoxide

detectors

a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl

space or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be

installed on the next adjacent floor level.

b. In the event that the requirements of this subdivision can not be met at the time of completion

of installation, the owner shall have a period of thirty (30) days to comply with the above

requirements; provided, however, that during said thirty (30) day period, a battery operated carbon

monoxide detector with an alarm shall be installed.

2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in

accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and

IAS certified.

3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of

the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent

terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read,

in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF

ALL OBSTRUCTIONS".

4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled

equipment shall not approve the installation unless, upon inspection, the inspector observes carbon

monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)

(a)1 through 4.

(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:

1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most

current edition of NFPA 54 as adopted by the Board; and

2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or

structure separate from the dwelling, building or structure used in whole or in part for residential

purposes.

the manufacturer of Product Approved side wall horizontally vented gas equipment provides a

venting system design or venting system components with the equipment, the instructions provided

by the manufacturer for installation of the equipment and the venting system shall include:

1. Detailed instructions for the installation of the venting system design or the venting system

components; and

2. A complete parts list for the venting system design or venting system.

(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.

When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment

does not provide the parts for venting the flue gases, but identifies "special venting systems", the

following requirements shall be satisfied by the manufacturer:

1. The referenced "special venting system" instructions shall be included with the appliance or

equipment installation instructions; and

2. The "special venting systems" shall be Product Approved by the Board, and the instructions for

that system shall include a parts list and detailed installation instructions.

(e) A copy of all installation instructions for all Product Approved side wall horizontally vented

gas fueled equipment, all venting instructions, all parts lists for venting instructions, and/or all

venting design instructions shall remain with the appliance or equipment at the completion of the

installation.

For the State of Massachusetts, use only plastic piping, fittings and vent terminations as spedified

in the manual which are approved by the Massachusetts Board of State Examiner of Plumbers and

Gas for venting of appliances (see link below):

https://licensing.reg.state.ma.us/pubLic/pl_products/pb_pre_form.asp

Important Instructions for the Commonwealth of Massachusetts

Rheem PROP G40-50P RH HE EC3 H Professional Prestige Maximus

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