Rheem GHE80SU-300A Triton Heavy Duty SU User Manual

FOR YOUR SAFETY!

WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing

property damage, personal injury or death.

NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance of it should be performed

by a qualified, licensed service professional.

AP22843 Rev 06

WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR

Commercial High Efficiency Water Heater

USE & CARE MANUAL

Do not destroy this manual. Please read carefully and keep

in a safe place for future reference.

Recognize this symbol as an indication of important

safety information!

Scan for additional

Information & videos.

For use with the following

models:

GHE80SS, GHE80SU

GHE100SS, GHE100SU

GHE119SS, GHE119SU

CATEGORY IV Models

Fan Assisted Combustion

-AVOID FIRES AND EXPLOSIONS

• 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 building

• 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 de-

partment.

• Do not return to your building until authorized by the

gas supplier or fire department.

-ALWAYS REFER TO THIS MANUAL

• Improper installation, adjustment, alteration, service,

or maintenance can cause injury, property damage, or

death.

• Installation and service must be performed by a quali-

fied installer, service agency, or gas supplier.

ANSI/NSF-5

WATER QUALITY

HLW

www.ahridirectory.org

LOW LEAD

CONTENT

Safety Information

Safety Precautions .................. 3-4

Introduction

Local Installation Regulations ...........5

Water Heater Location ................. 5

Installation Instructions

Inspect Shipment ..................... 5

Water Supply Connections ............. 6

Gas Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Wiring ............................... 7

Typical Installation ..................... 8

TABLE OF 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 important 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:

DANGER

An imminently hazardous

situation that will result in death

or serious injury.

WARNING

A potentially hazardous

situation that could result in

death or serious injury and/or

damage to property.

CAUTION

A potentially hazardous

situation that may result in

minor or moderate injury.

NOTICE:

Attention is called to observe

a specified procedure or

maintain a specific condition.

READ ALL SAFETY INFORMATION

Operating Instructions

Ignition Instructions .................. 32

Water Temperature ................... 33

Emergency Shut Down ................ 33

User Interface .....................34-37

Gas Valve Adjustments ..............38-39

Troubleshooting

Before You Call For Service ......... 41-49

Alarm and Alert Codes ..............43-49

Customer Service

Parts List .........................50-51

Wiring Diagrams ............. 52-53

Important Instructions for the

Commonwealth of Massachusetts ...54

How to Obtain Service Assistance ...... 56

Care and Cleaning

Pressure Switch Inspection ............ 40

Venting Inspection .................... 40

Routine Maintenance ............ 40

Anode Inspection .................... 40

Seasonal Operation .................. 40

Venting System Inspection ............. 40

Vent Installation

Information for Pipe and Fittings .........9

General Venting Information ............ 9

Joining Pipe and Fittings ............ 9-10

Minimum and Maximum Vent Lengths ... 11

Power Vent Pipe Lengths .............. 11

Power Direct Vent Pipe Lengths ........ 12

Flex Vent ............................ 12

Vent Terminal Precautions .......... 13-16

Horizontal Vent Installation .......... 17-19

Vertical Vent Installation ............ 20-22

Concentric Vent Installation ......... 23-30

Installation Checklist .................. 31

Quick Guide for Water Heater Operating Conditions:

Min. Inlet Gas Pressure (at gas valve, during ignition to

full input):

Natural Gas: 3.5 In. WC

LP Gas: 11.0 In. WC

Max. Inlet Gas Pressure (at gas valve, during ignition to

full input):

Natural Gas: 10.5 In. WC

LP Gas: 13.0 In. WC

Electrical:

120 Vac, 60 Hz., 7 amp min. powered required

Basic Clearances for Water Heaters:

To combustibles: 0" for sides and back; 6" for top

Recommended for service: 24" for front and top

To meet commercial water use needs, the temperature on this water

heater is adjustable up to 185°F (85° 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.

General Safety Precautions

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 pages 34 & 37). To

comply with safety regulations the water heater temperature was

set to 120°F (49°C) before the water heater was shipped from the

factory. The illustration information on pages 34 & 37 shows the dis-

play and how to adjust the water temperature.

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 page 6

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 are at

highest risk of being scalded.

See instruction manual before

setting temperature at water heater.

Feel water before bathing or

showering.

Temperature limiting valves are

available, see manual.

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

DANGER

See Section "User Interface" (pages 33 & 36) 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 & Care Manual before attempting to install or operate this water heater.

Especially the following General Safety Precautions. Failure to follow these warnings could result in a fire or explo-

sion, causing property damage, bodily injury, or death. Should you have any problems understanding the instructions

in this manual, STOP, and get help from a qualified installer, service technician, or gas supplier.

DANGER

Failure to properly vent the water heater to the outdoors as

outlined in the "Venting" section (see pages 8 through 29)

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 an adequate air supply

for proper operation. Be sure to inspect the vent system for

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

thereafter. Refer to the "Maintenance" section (see page 38)

of this manual for more information regarding vent system

inspections.

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.

WA RNING

DANGER

WA RNING

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 attempt-

ing ignition of the water heater. Use a soapy solution to

check all gas fittings and connections. Bubbling at a con-

nection 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 manu-

facturer's recommendations and local laws, rules, regu-

lations, 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 fam-

ily and pets leave also.

• Leave the doors open for ventilation and contact the gas

supplier, a qualified service agency or the fire depart-

ment.

• Keep the area clear until the service call has been made,

the leak is corrected, and a qualified agency has deter-

mined the area to be safe.

Read and Review this entire

manual with special emphasis on the "Venting" section

(Pages 8-29) and "Operation" section (Pages 32-33) prior to

any installation work.

Gasoline, as well as other flammable materials and liquids

(adhesives, solvents, 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. Be sure

to read and follow the warning label pictured below as

well as the other labels on the water heater, and warnings

printed in this manual. Failure to do so can result in prop-

erty damage, bodily injury, or death.

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.

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.

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.

WA RNING

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

WA RNING

LOCAL INSTALLATION REGULATIONS

This water heater must be installed in accordance with

these instructions, local codes, and utility company

requirements. In the absence of local codes, the latest

edition of the National Fuel Gas Code, ANSI Z223.1 in

the United States, or CAN/CSA B149.1

Installation Codes in Canada should be consulted.

LOCATION

A. If this water heater is of the direct vent, all air for

combustion and all products of combustion are

routed through the venting system, directly from the

water heater to the outside of the building.

Otherwise, this unit can also be set up as a power

vent unit. Combustion air for a power vent unit will

be obtained from the surrounding area. Ensure that

there is an adequate air supply for the water heater,

per the codes given above in the "Local Installation

Regulations" section.

The water heater should be installed in a clean, dry

location as close as practical to the vent terminals.

Long hot water lines should be insulated to conserve

water and energy. The water heater and water lines

should be protected from exposure to freezing

temperatures.

B. A gas fired water heater 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 and propane), paint or

adhesives and their thinners, solvents or removers.

Because of natural air movement in a room or other

enclosed space, flammable vapors can be carried

some distance from where their liquids are being

used or stored. The open flame of the water heater’s

main burner can ignite these vapors causing an

explosion or fire which may result in severe burns,

death, or property damage. For these reasons, in-

stallation of a gas-fired water heater in a garage is

not desirable.

C. All models are certified for installation on combusti-

ble floors and in alcoves. The minimum side and top

clearance to walls and ceiling for providing

protection of combustible materials are shown on

the water heater’s rating label. A top and front clear-

ance of 24 inches (61 cm) is recommended for in-

spection and servicing. The "Top" clearance is mea-

sured from the top pan of the unit.

NOTICE: Auxiliary catch pan installation MUST

conform to the applicable local codes.

The water heater should not be located in an area where

leakage of the tank or connections will result in damage

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

structure. When such areas cannot be avoided, it is

recommended that a suitable catch pan be installed

under the water heater and adequately drained. The pan

MUST NOT interfere with the operation of the water

heater and access of the serviceable components.

D. RESTAURANT INSTALLATION: — If the water heater

is to be installed in a restaurant or other location

where NSF International listing is required, this unit

must be sealed to the floor, and other components

must be added utilizing Rheem's UL listed NSF seal

Kit (see kit listing on page 35). A factory designed

sealing kit is available from the distributor or store

where the water heater was purchased. When

installed according to the instructions supplied with

the kit, these heaters will meet the NSF international

requirements.

E. CORROSIVE ATMOSPHERES — The heater should

not be installed near an air supply containing

halogenated hydrocarbons. For example, 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 such hydrocarbons. The air there 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. Propel-

lants from common spray cans or gas leaks from re-

frigeration equipment are highly corrosive after pass-

ing through a flame. The limited warranty is voided

when failure of the water heater is due to a corrosive

atmosphere. (Refer to the Certificate of Limited

Warranty for complete terms and conditions.)The

manufacturer’s warranty does not cover any damage

or defect caused by installation, attachment, or use

of any special attachment, such as energy saving

devices (other than those authorized by the manu-

facturer) into, onto, or in conjunction with the water

heater. The use of such unauthorized devices may

shorten the life of the water heater and may endan-

ger life and property. The manufacturer disclaims any

responsibility for such loss or injury resulting from

the use of such unauthorized devices.

1. INSPECT SHIPMENT — Check for possible dam-

age that may have occurred during shipping. The

manufacturer’s responsibility ceases upon delivery

of goods to the carrier in good condition. Any claims

for damage, shortage in shipments, or non-delivery

must be filed immediately against the carrier by the

consignee.

One plastic bag is included, contains the Use & Care

Manual, and Warranty.

For GHE80SS/SU and GHE100SS/SU models, one

box is included, containing the fitting plugs, a 3 inch

elbow w/screen, exhaust tee w/condensate trap and

instructions to install the neutralizer.

For GHE119SS/SU models, one box is included,

containing the fitting plugs, a 4 inch elbow w/screen,

exhaust tee w/condensate trap and instructions to

install the neutralizer.

2. 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 sys-

tem”. 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.

Introduction

CAUTION

Installation

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 pres-

sure 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 contrac-

tion 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 pres-

sure condition and eliminating the repeated operation

of the relief valve. Other methods of controlling ther-

mal expansion are also available. Contact your install-

ing contractor, water supplier, or plumbing inspector

for additional information regarding this subject.

If a recirculation line is installed, the return con-

nection should be made through a tee close to the

inlet connection on the water heater. A check valve

should always be installed in the recirculation line to

prevent cold water from entering.

WATER CONNECTIONS — This water heater may be

connected individually, in multiples with others, or

with an external hot water storage tank.

Inlet water connections are made to the lower

coupling on the heater, and outlet water connections

are made to the upper coupling.

Each water heater is supplied with the necessary

components (diffuser tubes) to make the water

connections that will ensure proper performance.

The components are supplied in a bag attached to

the water heater. If special instructions are required

for any specific water heater, they will be included in

the bag.

Cap or plug unused connections. Use only clean,

new galvanized steel, copper or approved plastic

pipe for water connections. Local codes or regula-

tions shall govern the exact type of material to be

used.

The installation of unions on the inlet and outlet

water lines and a shut-off valve in at least the cold

water inlet line is recommended, so the water heater

may be easily disconnected for servicing. Dielectric

unions are not required for protection of the water

heater.

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

page 3 for more details and contact a licensed

plumber or the local plumbing authority for further

information.

Thermometer(s) should be installed so that they

indicate the temperature of the water at or near the

outlet of the water heater and storage tank(s) if

provided.

3. RELIEF VALVE — A new factory installed combina-

tion pressure and temperature relief valve, comply-

ing with the Standard for Relief Valves and Auto-

matic Gas Shutoff Devices for Hot Water Supply

Systems, ANSI Z21.22, or Standard CSA 4.4, Tem-

perature, Pressure, Temperature and Pressure Relief

Valves and Vacuum Relief Valves is provided with the

water heater. No valve is to be placed between the

relief valve and the water heater. For a circulating

tank installation, the separate storage tank(s) must

have similar protection. The pressure rating of the

relief valve must not exceed 150 psi (1034 kPa) (160

psi for ASME mod

els), the maximum working pres-

sure as marked on the front of the water heater.

Connect the outlet of the relief valve to a suitable open drain.

The discharge line must pitch downward from the valve to

allow complete draining (by gravity) of the relief valve and

discharge line, and be no smaller than the outlet of the valve.

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. Local codes shall govern the

installation of relief valves.

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.

4. 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 gas line should be of adequate size to prevent

undue pressure drop (pressure should not drop more

than 1.5", when going from standby to full blower

speed condition). Sizing based upon information in

Table 2, on page 31. No additional allowance is nec-

essary for an ordinary number of fittings.

NOTE: The minimum inlet gas pressure (at gas

valve), during ignition to full input, should not be

less than 3.5" WC for Nat. or 11" WC for LP.

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 acces-

sible for turning on or off. See Fig. 2.

If a sediment trap is not incorporated as part of the

appliance, a sediment trap shall be installed down-

stream 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 Fig. 2.

WA RNING

LEAK TESTING — The water heater and its gas

connections MUST be leak tested at normal operat-

ing pressure before it is placed in operation. Turn ON

the manual gas shut-off valve near the water heater.

NOTE: Each water heater should have its

own regulator located a minimum of 8’

from unit.

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 also be leak

tested after placing the water heater in operation.

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 manual 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

EXHAUST TEE & NEUTRALIZER -

The exhaust

elbow/condensate trap is located in the instal-

lation kit along with the bag of neutralizer. Pour

the neutralizer into the exhaust tee so that it is in

the bottom. Then insert the exhaust tee onto the

heater as shown in Figure 1. Using a 5/16" nut

driver or ratchet, tighten the exhaust tee onto the

heater.

CONDENSATE -

This is a condensing high efﬁ-

ciency appliance and has a condensate removal

system. The exhaust tee incorporates a conden-

sate trap and must be ﬁlled with water before

operating the water heater. For GHE80SS/SU

and GHE100SS/SU models, pour about 1 cup of

water into the exhaust tee. For GHE119SS/SU

models, pour about 2 cups of water into the ex-

haust tee.

SERVICING -

Remove the exhaust elbow from

the heater using a 5/16" nut driver or ratchet.

Empty the condensate and neutralizer from the

exhaust elbow, and reﬁll it with the new neutral-

izer (Rheem part number AP16770). Re-attach

the exhaust tee to the heater. For GHE80SS/SU

and GHE100SS/SU models, pour about 1 cup

of water into the exhaust tee. For GHE119SS/

SU models, pour about 2 cups of water into the

exhaust tee. into the exhaust tee. Re-attached

the venting

. It is very important that the condensate

line is sloped away from the heater and down to a

suitable inside drain. If the condensate outlet on

this unit is lower than the drain, you must use a con-

densate removal pump. It is also important that the

condensate line is not exposed to freezing tempera-

tures, or any other type of blockage. Plastic tubing

should be the only material used for the condensate

line. Steel, brass, copper, or other metals will be

subject to corrosion and deterioration, so they are

not recommended to be used for the condensate

drain line. A second vent may be necessary to pre-

vent condensate line vacuum lock if a long horizon-

tal run is used. Also an increase to 1" tubing may be

necessary.

6. WIRING — 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 opera-

tion of the unit. Refer on page 49 of this manual for

the wiring diagram for this water heater.

The water heater must be vented to the outdoors

as described in these instructions.

DO NOT connect this water heater to an existing vent or

chimney; it must be vented separately from all other ap-

pliances, using only approved venting materials.

Installation

Figure 1

Figure 2 - Condensate Trap

WA RNING

Complete installation of wiring harnesses per in-

stallation instructions in kit.

GHE80SS SU and

GHE100SS/SU

GHE80SS SU and

GHE100SS/SU

GHE119SS/SU

Failure to properly vent the water heater to the outdoors as out-

lined above and in the following section can result in unsafe opera-

tion of the water heater causing bodily injury, explosion, fire or

death.

NOTICE: DO NOT use in conjunction with a GFCI.

avoid the risk of fire, explosion or asphyxiation from carbon

monoxide, NEVER operate this water heater unless it is properly

vented and has an adequate air supply for proper operation. It

is important that the vent pipe engages 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.

7. VENTING —

This water heater must be vented to the outdoors

with a venting system that is certified to the Under-

writer's Laboratories of Canada Standard ULC-S636

(Current Edition). The vent system must be installed

in accordance with the vent system manufacturer's

installation instructions.

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

or power vent configuration.

NOTICE: This unit can be vented using only the below

recommended pipe material. Use only 2, 3, 4, or 6

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.

PVC (Schedule 40, ASTM D-1785)

CPVC (Schedule 40, ASTM F-441)

ABS (Schedule 40, ASTM D-2661)(Not permitted in

Canada)

PVC Cellular Core (Schedule 40, ASTM F-891)(Not

permitted in Canada)

The fittings, other than the VENT TERMINAL,

should be equivalent to the following:

PVC (Schedule 40 DWV, ASTM D-2665)

Installation

Figure 3. — Typical Installation Drawing.

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.

Vacuum Relief Valve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

Temperature &

Pressure Relief

Valve

Air Gap 6"

Hot Outlet

Cold Water

Inlet

Thermal Expansion Tank

(Not Supplied)

If required, install per local codes and

tank manufacturer's instructions.

Shut -Off Valve

To Gas Supply

Manual Gas Shut Off

Gas Pipe to Gas Valve

Sediment Trap

Discharge Line to

suitable open drain

WA RNING

Vacuum Relief Valve

(Not Supplied)

If required, install per local codes and

valve manufacturer's instructions.

CPVC (Schedule 40 DWV, ASTM F-438)

ABS (Schedule 40 DWV, ASTM D-2661)(Not permitted

in Canada)

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 ad-

equately supported along both vertical and horizontal

runs. Maximum unsupported span is recommended

to be no more than 4 feet. It is imperative that the

first hanger be located on the horizontal run immedi-

ately adjacent to the first 90-degree elbow from the

vertical rise or at the blower outlet, in the case of a

horizontal blower position. 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 other-

wise secure the venting system in a way that restricts

the normal thermal expansion and contraction of the

chosen venting material.

DO NOT install thermal insulation to the non-metalic

vent pipes and fittings.

If the water heater is being installed as a replacement

for an existing power 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, particu-

larly 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 sys-

tem. If any of these conditions are found, they must

be corrected in accordance with the venting instruc-

tions in this manual before completing the installation

and putting the water heater into service.

VENT PIPE CONNECTION —

Note: It is recommended that a suitable rubber coupling

is used on the outlet vent connection.

Refer to Figure 4, 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.

Before starting the vent installation, careful planning

should be given to the routing and termination of the

vent pipes. The length of the vent pipes (inlet and out-

let) should be kept to a minimum. Also, see Figures 9

& 10 for vent terminal placement. Refer to the venting

charts in Table 1 for the pipe sizes and the total equiv-

alent 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 or down in pipe size to connect to

the water heater. All models are shipped with 3" 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 24" (61 cm).

See Figures 6, 7, and 8 for other vent terminal restric-

tions.

JOINING PIPES AND FITTINGS – All pipe, fittings,

solvent cement, primers, and procedures, must con-

form to American National Standards Institute and

American Society for Testing and Materials (ANSI/

ASTM) standards in the U.S. For Canada, all pipe, fit-

tings, solvent cement, primers, and procedures must

conform to ULC-S636 and vent manufacture specifi-

cations.

CEMENTING JOINTS – 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.

(ABS is not allowed in Canada)

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.

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

4. Hold the pipe fitting for 30 seconds to prevent the ta-

pered 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.

Installation

Figure 4.

—

Vent Pipe Connection Locations

Air Inlet

Connection

GHE80SS SU and

GHE100SS/SU

GHE119SS/SU

FOR PROPER INSTALLATION:

CAUTION

• 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 warn-

ings on material containers.

DIRECT VENT INSTALLATION - Check to make sure

flue gases DO NOT recirculate into the air intake

terminal when using direct venting. If the water heat-

er 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 occur-

ring. 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, increas-

ing the distance between them, or using inside air

for combustion. Check to be sure the intake and ex-

haust 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 (page 8), "Con-

densate" section (page 7) of this manual for com-

plete instructions on venting and condensate drain-

age.

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 mini-

mize 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, and 6.5" (16.5 cm) for 6" pipe.

Vent terminals must maintain a horizontal distance

apart in the range of 24" to 36" (61 cm to 91 cm).

Refer to Figure 5 for additional information.

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 (see Figure 10)

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 for every 3 feet (.91 m) of horizontal vent

beyond the intake terminal as seen in Figure 11.

Additional Fitting Considerations

Short Sweep

90° Elbow

Standard Sweep

90° Elbow

Long Radius Sweep

90° Elbow

Standard

45° Elbow

10'

Straight Equivalent

2.5'

Straight Equivalent

Figure - 5. Examples of Elbows:

DO NOT RECOMMEND short sweep elbows. It is recommended to use only standard and/or long sweep elbows.

See examples as shown.

Installation

TABLE 1. POWER VENTING – RIGID VENT PIPING: PVC, CPVC, ABS, PP – MAX VENT LENGTHS

Models GHE80SU-200(A) & GHE80SU-300(A) are limited to an altitude of 8000 ft, while all other models are limited to

8999 ft.

Model GHE119SU-500(A) if installed above 5000 ft, refer to "Gas Valve Instructions" for adjustments.

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.

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

equivalent vent length by 5 feet (1.5m).

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.

6) The maximum equivalent vent lengths, for inlet and outlet, must

be within 20 equivalent feet (6.1m) of each other. Supplied vent

terminal(s) are not included in the maximum equivalent vent length.

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

cause a lock-out condition.

Installation

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

Power Vent

Max Vent Length (Eq.Ft.)

Rigid Pipe Diameter

Inlet Models

Altitude

Range

2" (5 cm) 3" (8 cm) 4" (10 cm) 6" (15 cm)

Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet

GHE80SU-130(A)

GHE80SU-160(A)

0-8999 Ft

(0-2743 m)

(0.31 m)

(6.1 m)

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

N/A N/A

GHE80SU-200(A)

0-8000 ft

(0-2438 m)

N/A N/A

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

N/A N/A

GHE80SU-300(A)

0-8000 Ft

(0-2438 m)

N/A N/A

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

(0.31 m)

120

(36.6 m)

GHE100SU-130(A)

GHE100SU-160(A)

0-8999 ft

(0-2743 m)

(0.31 m)

(6.1 m)

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

N/A N/A

GH100SU-200(A)

0-8999 ft

(0-2743 m)

N/A N/A

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

N/A N/A

GHE100SU-250(A)

GHE100SU-300(A)

0-8999 ft

(0-2743 m)

N/A N/A

(0.31 m)

135

(41.1 m)

(0.31 m)

185

(56.4 m)

(0.31 m)

120

(36.6 m)

GHE100SU-350(A)

GHE100SU-400(A)

0-8999 ft

(0-2743 m)

N/A N/A

(0.31 m)

(19.8 m)

(0.31 m)

100

(30.5 m)

(0.31 m)

135

(41.1 m)

GHE119SU-500(A)

0-10000 ft

(0-3435 m)

N/A

(0.31 m)

(18.3 m)

(0.31 m)

150

(46.7 m)

(0.31 m)

150

(46.7 m)

Min Vent Length (Eq.Ft.)

Rigid Pipe Diameter

All Models

See Below

(0.31 m)

(4.6 m)

(0.31 m)

(4.6 m)

(0.31 m)

(4.6 m)

(0.31 m)

(4.6 m)

Installation

Venting Conﬁgurations are the Same for SS Models:

3 inch concentric vent can only be used with 3 inch rigid piping.

4 inch concentric vent can only be used with 4 inch rigid piping.

DO NOT mismatch concentric vent terminations with different rigid piping as it may cause the heater to mal-

function or cause a lock-out condition.

DO NOT use 2 inch rigid venting with concentric vent terminations.

DO NOT use 6 inch rigid venting with concentric vent terminations.

Note: For Horizontal Power Direct Vent conﬁgurations, GHE119SS/SU models will need to have a 45 degree elbow

on the intake and a 90 degree elbow on the exhaust, if they are on the same plane.

Flexible Polypropylene pipe (ft)

Pipe Size (IN.) 3 4

Max PV Intake Exhaust Intake Exhaust

GHE80 and GHE 100 Models 0 60 0 60

GHE119-500 N/A N/A 0 80

Power Direct Vent

Max Vent Length (Eq.Ft.)

Rigid Pipe Diameter

Inlet Models

Altitude

Range

2" (5 cm) 3" (8 cm) 4" (10 cm) 6" (15 cm)

Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet

GHE80SU-130(A)

GHE80SU-160(A)

0-2000

(0 - 609 m)

(6.1 m)

(18.3 m)

(22.9 m)

120

(36.6 m)

135

(41.1 m)

N/A N/A

2001-8999

(610 - 2743 m)

(6.1 m)

(12.2 m)

(16.8 m)

120

(36.6 m)

135

(41.1 m)

N/A N/A

GH80SU-200(A)

GHE80SU-300(A)

0-8000 ft

(0-2438 m)

N/A N/A

(18.3 m)

(22.9 m)

120

(36.6 m)

135

(41.1 m)

120

(36.6 m)

135

(41.1 m)

GHE100SU-130(A)

GHE100SU-160(A)

0-2000

(0 - 609 m)

(6.1 m)

(18.3 m)

(22.9 m)

120

(36.6 m)

135

(41.1 m)

N/A N/A

2001-8999

(610 - 2743 m)

(6.1 m)

(10.7 m)

(12.2 m)

(16.8 m)

120

(36.6 m)

135

(41.1 m)

N/A N/A

GH100SU-200(A)

GHE100SU-250(A)

GHE100SU-300(A)

0-2000

(0 - 609 m)

N/A N/A

(18.3 m)

(22.9 m)

120

(36.6 m)

135

(41.1 m)

N/A N/A

2001-8999

(610 - 2743 m)

N/A N/A

(12.2 m)

(16.8 m)

120

(36.6 m)

135

(41.1 m)

120

(36.6 m)

135

(41.1 m)

GHE100SU-350(A)

GHE100SU-400(A)

0-8999 ft

(0 - 2743 m)

N/A N/A

(15.2 m)

(19.8 m)

(21.4 m)

(25.9 m)

120

(36.6 m)

135

(41.1 m)

GHE119SU-500(A)

0-10000 ft

(0-3435 m)

N/A N/A

(18.3 m)

120

(36.6 m)

130

(39.6 m)

120

(36.6 m)

130

(39.6 m)

Min Vent Length (Eq.Ft.)

Rigid Pipe Diameter

All Models See Below

(1.5 m)

(15.2 m)

(1.5 m)

(15.2 m)

(1.5 m)

(15.2 m)

(1.5 m)

(15.2 m

TABLE 2. POWER DIRECT VENTING LENGTHS

Models GHE80SU-200(A) & GHE80SU-300(A) are limited to an altitude of 8000 ft, while all other models are limited to 8999 ft.

Model GHE119SU-500(A) if installed above 5000 ft, refer to "Gas Valve Instructions" for adjustments.

Models GHE80SU-200(A) & GHE80SU-300(A) are limited to an altitude of 8000 ft, while all other models are limited to 8999 ft.

NOTE: Units naturally de-rate as vent length is extended from minimum vent. De-rate also occurs when

reducing the diameter of the vent from the default size (GHE80/100 default is 3", GHE119 default is 4").

For each 90° Elbow, reduce pipe length by ﬁve (5) feet.

For each 45° Elbow, reduce pipe length by two and a half (2.5) feet.

Note: Vent pipe size should not be mixed for venting these units.

Use same diameter pipe for all venting of the unit.

vent terminal is at least 2 feet (0.61 m) away from any-

thing 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

Figure 7).

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

connect the coupling as shown in Figure 7. 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 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.

Min. 24"

Max. 36"

Inlet Outlet

Additional Considerations (See Figures 9 & 10)

1. DO NOT install vent terminals under any patio or deck.

2. To help prevent moisture from freezing on walls and

under eaves, DO NOT locate outlet vent terminal on

the side of a build ing with prevailing winter winds.

3. DO NOT terminate vent pipe directly on brick or

masonry surfaces. Use a rust-resistant sheet metal

backing plate behind vent. (See Figure 7.)

4. DO NOT locate vent terminal too close to shrubbery,

since flue gases may damage them.

5. Caulk all cracks, seams and joints within 6 feet

(1.83 m) of vent terminal.

6. All painted surfaces should be primed to lessen the

chance of physical damage. Painted surfaces will

require maintenance.

7. 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.

8. This water heater requires its own separate

venting system. DO NOT connect the exhaust vent to an

existing vent pipe or chimney.

WA RNING

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 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

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 Figure 8 for the proper vent terminal

height. Connect the vent elbow onto the verti-

cal 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.

VERTICAL VENT TERMINAL LOCATION – The location

of the vertical vent terminal depends on the following

considerations (see Figure 8):

1. Minimum 12" (30.5 cm) above the roof 18" (46 cm) for

Canada.

2. Minimum 12" (30.5 cm) inches above anticipated

snow level.

3. Maximum 24" (61 cm) above roof level without addi-

tional support for vent pipe.

4. 4 feet (1.22 m) from any gable, dormer or other roof

structure with building interior access (i.e., vent, win-

dow, etc.).

5. 10 feet (3.05 m) from any forced air inlet to the build-

ing. Any fresh or make-up air inlet such as a dryer or

furnace area is considered to be a forced air inlet.

6. Vent terminals are a minimum of 24" (61 cm) and a

maximum of 36" horizontally apart.

Installation

Figure 7 – Typical Horizontal Vent Installation

Figure 8 – 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"(46cm) for Canada

Figure 6

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

" Mesh Pro-

tective

Screen Inside

Vent

Pipe

Elbow can be a maximum

of 1 inch from the wall.

Installation

Figure 9

Regulator vent outlet in the event no

regulator is present, H and I can be

disregarded.

Fixed

closed

15 ft

Fixed

closed

Inside

corner detail

Operable

Horizontal Vent Terminal Location for Power Direct Vent

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

Canadian Installations

US Installations

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

2 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.

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),

• 12 in (30 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)

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 dis-

tance 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 extend-

ed meter/regulator assembly. above

3 feet (91 cm) within a height 15 feet (4.6 m) 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 feet (91 cm)

J = Clearance to nonmechanical air supply inlet

to building or the combustion air inlet to any

other appliance..

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

(3 kW),

• 12 in (30 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 feet (1.83 m)

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

zontally.

L = Clearance above paved side walk or paved

driveway located on public property.

7 feet (2.13 m)

7 feet (2.13 m) for mechanical draft system (Cat-

egory I appliances); vents for Category II and IV

appliances cannot be located above public walk-

ways 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)*

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) or 6" (15.2 cm) diameter PVC,

ABS or CPVC. 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 con-

figurations, in either 3" or 4" 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.

Installation

• 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 terminal in proximity to plants/shrubs.

Figure 10

Installation

Regulator vent outlet in the event no

regulator is present, H and I can be

disregarded.

Fixed

closed

15 ft

Fixed

closed

Inside

corner detail

Operable

Horizontal Vent Terminal Location for Power Vent

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

Canadian Installations

US Installations

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 dwellings and

serves both dwellings.

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

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),

• 12 in (30 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)

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 dis-

tance 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 extend-

ed meter/regulator assembly. above

3 feet (91 cm) within a height 15 feet (4.6 m) 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 feet (91 cm)

J = Clearance to nonmechanical air supply inlet

to building or the combustion air inlet to any

other appliance..

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

(3 kW),

• 12 in (30 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)

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

(300 mm) 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) hori-

zontally.

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.

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

Installation

Figure - 11- Typical Horizontal Power Vent System

* A 6 inch pipe can be used on 300,000 Btu/h models and above.

EVERY 3' MAX.

When 6 inch pipe is used, start pipe

supports as close as possible to unit.

2, 3, 4, OR 6*

INCH PIPE AND

FITTINGS

SUPPORT BRACKET

45° TERMINAL

1 IN. MAX.

WALL

WATER

HEATER

NOTE: Horizontal

venting shall be

installed with a slight

upward slope of 1/4"

per foot.

DRAIN

PAN

FLOOR

Installation

Figure - 12- Typical Horizontal Direct Vent System

* A 6 inch pipe can be used on 300,000 Btu/h models and above.

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 12a).

Figure 12a. Vent Terminal (Low Ground Clearance)

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

EVERY 3' MAX.

1 IN. MAX.

WALL

DRAIN PAN

WATER

HEATER

FLOOR

SUPPORT BRACKET

2, 3, 4, OR 6* INCH PIPE

AND FITTINGS

45° TERMINAL

When 6 inch pipe is used,

start pipe supports as close

as possible to unit.

Installation

Figure 13a: Multiple Unit Venting

Example of 4 Units' Vent.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #1

24" to 36"

Heater #2

24" Min.

Example of 2 Units' Vents.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #1

24" to 36"

Heater #2

24" Min.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #3

24" to 36"

Heater #4

24" Min.

16"

Figure 13c: Optional Conﬁguration

Exhaust Exhaust

IntakeIntake

12" Min.

10" Min.

24" Min.

Exhaust Exhaust

IntakeIntake

12" Min.

10" Min.

24" Min.

16"

Figure 13b: Multiple Unit Venting Figure 13d: Optional Conﬁguration

Example of 8 Units' Vent.

36" Min.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #1

24" to 36"

Heater #2

24" Min.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #3

24" to 36"

Heater #4

24" Min.

36" Min.

Intake Exhaust

24" to 36"

Heater #5

24" to 36"

Heater #6

24" Min.

Intake

Exhaust

Intake Exhaust

24" to 36"

Heater #7

24" to 36"

Heater #8

24" Min.

24"

Intake Exhaust

Figure 13e

Figure 13f

Example of 4 Units' Vent.

Intake Exhaust

IntakeExhaust

24" to 36"

Heater #1

24" to 36"

Heater #2

10" Min.

Horizontal Venting

inch to cm

10" = 25 cm

12" = 31 cm

16" = 41 cm

18" = 46 cm

24" = 61 cm

36" = 91cm

Figure 14. Typical Vertical Direct Vent System Installation

Installation

Combustion Air-Inlet

Terminal

Combustion Air-Inlet

Terminal

Exhaust Vent

Terminal

Exhaust Vent

Terminal

-B-

-A-

-B-

.008

.010

"D"

Min. 18 in. (46 cm) 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

Elbow

Short Piece of Pipe

"D"

Combustion Air-Inlet

"D"

Alternate vertical venting with ex-

haust vent turned down - preferred

for cold climates.

Terminals spacing for horizontal or vertical venting.

Exhaust Vent

24" (61 CM) Min

(Support required).

90° Intake Terminal

Support Bracket

Water Heater

Floor

Straight Exhaust Terminal

"D"

NOTE:

For Model GHE119SU-500(A) If vent terminal are on the same

plane, use a 90° termincal on Exhaust Vent Terminal and 45°

terminal on Air-Inlet Terminal.

24 in. (61 cm) Min.

Installation

Figure 15. Typical Vertical Power Vent System Installation

Straight Exhaust Terminal

Support Bracket

Water Heater

Floor

90° Combustion Air

Inlet Terminal with

screen

Recommended support bracket be

placed on horizontal run

Min. of 18" (46 cm)

above roof.

Min. of 12" (30.5 cm)

above anticipated snow

level.

Max. 24" (61 cm) above

roof without additional

support.

90° Combustion Air

Inlet Terminal with

Screen

Water Heater

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. of 18" (46 cm)

above roof.

Min. of 12" (30.5 cm)

above anticipated snow

level.

Max. 24" (61 cm) above

roof without additional

support.

Installation

Figure 16. Direct Vent Vertical Vent Horizontal Intake

Direct Vent Horizontal Vent Vertical Intake

NOTE: Horizontal

venting shall be

installed with a slight

upward slope of 1/4"

per foot.

NOTE: Horizontal

venting shall be

installed with a slight

upward slope of 1/4"

per foot.

CONCENTRIC VENT TERMINAL INSTALLATION:

PROCEDURE

Improper installation, adjustment, service, or mainte-

nance 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.

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.

CAUTION

Installation

Installation:

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

2. Determine the best location for the termination kit.

3. Cut the recommended diameter hole for the nominal PVC 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 charts 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

PVC Intake/Combustion Air

"C"

Kits for Canada

Concentric "Y"

Fitting

"D" Diameter

Pipe

"E" Diameter Pipe

Rain Cap

Kits for US Kits for Canada (ULC S636 Material)

Nominal PVC

Dimensions

Nominal PVC

Dimensions

“A” “B” “C” “D” “E” “A” “B” “C” “D” “E”

3” Vent Kit 39.98” 21” 3” 4” * 2” 3” Vent Kit 36.16”

(91.9 cm)

21”

(53.3 cm)

3”

(7.6 cm)

4” *

(10.2 cm)

2”

(5.1 cm)

4” Vent Kit 53.75” 34.8” 4” 6” ^ 4” 4” Vent Kit 55.96”

(142 cm)

38.25

(97.2 cm)

4”

(10.2 cm)

6” *

(15.2cm)

4”

(10.2 cm)

* Hole size for nominal 4” PVC would be 5" (12.7 cm) and for 6” PVC would be 7" (17.8 cm).

^ The pipe is on 6.3" OD, but a 7" hole can still be used.

"B"

"D"

"A"

"C"

"B"

PVC Vent/Exhaust

Rain Cap

"E" Diameter Pipe

Concentric "Y"

Fitting

"D" Diameter

Pipe

Installation

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.

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 (i.e.: balls, stones, etc.).

• 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 Figure 17). Ensure that no insula-

tion or debris accumulate in the pipe.

STEP 3:

Secure the combustion air-inlet pipe using a field

supplied perforated strap or a suitable type

material (see Figure 17).

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.

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.

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 (see Figure 17 & 18).

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 anticipated snow level.

WA RNING

Figure 18

Vent Pipe Assembly

WA RNING

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 anticipated

snow level.

Figure 17

STEP 3:

Secure the combustion air-inlet pipe using a field

supplied perforated strap or a suitable type material.

(see Figure 19).

STEP 4:

Assemble the vent pipe assembly by cleaning and

cementing the rain cap to the smaller diameter

exhaust pipe as shown in Figure 18. 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 Figure 19. 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.

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.

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" fit-

ting to the intake pipe (See Figure 19).

STEP 6:

Complete the installation of the remainder of the

vent and air intake systems as required in this

manual.

Installation

WA RNING

Exhaust

Field Supplied

Strap

Combustion Air- to

Water Heater

Exhaust Vent From

Water Heater

Field Supplied

PVC Connector

Field Supplied

90° Elbow

Min. 18" (46 cm)

above roof or

anticipated snow level.

Figure 20 Multiple Sidewall or Vertical

Concentric Vents

36" (91 cm) Min.

Figure 20A Multiple Sidewall Concentric Vents

36" (91 cm) Min.

16" (40 cm)

Min.

Figure 19

Min. 12"

(30.5 cm)

2626

Installation

Alternative Horizontal Vent Installations

For the GHE119-500 model alternative flat horizontal vent termination kit (SP21069) is available for 4" pip-

ing. Please refer to the instruction sheet packaged with the kit for complete installation instructions.

Flat Horizontal

Termination Kit

(this termination

can be rotated)

Exhaust

Vent

Flat

Termination

Kit

Air Intake

Vent

Air Intake

Pipe

Exhaust

Vent Pipe

Upward Slope

to Termination

Inspection Access

Panel (Optional)

Inspection Access

Panel (Optional)

Ceiling

12" Minimum to

overhang

Maintain 12" minimum clearance

above highest anticipated snow

level or grade whichever is greater

1" Screws

(4 req.)

2" Screws

(4 req.)

Vent

Cap

Vent

Plate

Vent

Combustion

Air

Installation

The GHE80SS/SU, GHE100SS/SU, and GHE119SS/SU models have been certified to use polypropylene pipe for both the

intake and exhaust vent systems, but must use the current PVC vent terminations (including concentric vents). All poly-

propylene pipe and fittings listed in the tables below are ULC-S636 listed.

*Can also be BC instead of C. A lock ring should be used at every pipe/ﬁtting connection.

**Connector rings should be used for all pipe/ﬁtting connections.

PP Chart 1

PP Chart 2

Centrotherm

M&G

Duravent

Nominal

Pipe

Diameter

PVC to PP

Adapter

Connector

Ring**

45 Degree

Elbow

87 Degree

Elbow

Vent

Material

Terminals

ISAGL0202

ISAGL0303

ISAGL0404

ISAGL0606

IANS02**

IANS03**

IANS04**

IANS06**

ISELS0245

ISELS0345

ISELS0445

ISEL0645

ISELL0287

ISELL0387

ISELL0487

ISEL0687

ISVL02-1,2,3,6

ISVL03-1,2,3,6

ISVL04-1,2,3,6

ISVL06-1,2,3,6

USE CURRENT

PVC

TERMINALS

Nominal

Pipe

Diameter

PVC to PP

Adapter

Locking

Band

45 Degree

Elbow

90 Degree

Elbow

Vent

Material

Terminals

2PPS-ADL

3PPS-ADL

4PPS-ADL

PPS-PACL

2PPS-LBC

3PPS-LBC

4PPS-LBC

6PPS-LBC

2PPS-E45C*

3PPS-E45C*

4PPS-E45C*

6PPS-E45C*

2PPS-E90C*

3PPS-E90C*

4PPS-E90C*

6PPS-E90C*

2PPS-12C,36C,72C*

3PPS-12C,36C,72C*

4PPS-12C,36C,72C*

6PPS-12C,36C,72C*

USE CURRENT

PVC

TERMINALS

The GHE80SS/SU, GHE100SS/SU, and GHE119SS/SU models can be vented using rigid polypropylene pipe, to the

same vent lengths called out in the current GHE manuals (AP14729-5 and AP18494). The overall vent length (pipe and

elbows) must fall within the allowable vent terminal configurations shown in the manuals. An adapter (see charts above)

will be needed to join the polypropylene pipe to the PVC pipe shipped with the units.

At the vent terminations, the polypropylene pipe will need to convert back to one of the allowable PVC termination

configurations currently used.

Page 28 shows what a complete vent set up would consist of for either the intake or exhaust vent system.

The first step to install the PP pipe is to find a PVC to PP adapter and lubricate the gasket that will slide into the PVC

fitting. The lubricant for the Centrotherm parts is called Centrocerin. Apply a small amount onto your finger and then

apply to the outer gasket.

Straight piece of PP pipe connected to a

PP to PVC adapter vent terminal installed

onto a PP to PVC adapter.

Note: The hole through the wall should

be sized for the PP pipe, which has a

smaller OD than PVC pipe.

PP pipe

PVC to PP

adapter

Make sure to lubricate all

gaskets, external and internal.

Centrocerin

lubricant for Centrotherm

PP pipe and fittings

PVC pipe shipped

with the unit

Installation

The PVC to PP adapter should then be installed into the PVC couplings on the inlet air and exhaust vent installed on the

unit. The sealing gasket will require some type of lubricant to make it easier to install the adapter.

Both Centrotherm and M&G Duravent recommend a connector ring to be installed between the PVC part and the PP

part. The connector ring for the Centrotherm pipe (either IAFC02, IAFC03, or IAFC04) is shown below. The connector ring

for the M&G Duravent pipe is shipped with the PVC to PP adapter..

Pipe and fittings are then installed to reach the area for the vent terminations. Each bell end of the pipe has a gasket,

which should be lubricated before the next piece of pipe or fitting is installed.

Installation

To be able to use a PVC termination, a short piece of PP pipe will need to be cut, as shown below, to transition from the

bell end of the pipe to the PP to PVC adapter.

Cut a piece of PP pipe that is long

enough to go through the wall and

have about 2" protruding on each

side of the wall.

The PP to PVC adapter can either be installed on

the pipe or into the vent terminal for the next step.

The final step is to make sure the vent terminal is

attached and secured to the adapter.

Installation

A. Water Heater Location

❑ Close to area of vent.

❑ Indoors and protected from freezing temperatures.

❑ Proper clearance from combustible surfaces

observed and water heater is not installed on a

carpeted floor.

❑ Air supply free of corrosive elements and flammable

vapors.

❑ Provisions made to protect area from water

damage.

❑ Sufficient room to service the heater.

B. Water Supply

❑ Water heater completely filled with water.

❑ Water heater and piping air vented.

❑ Water connections tight and free of leaks.

C. Gas Supply

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

sediment trap/drip leg.

❑ Approved pipe joint compound used.

❑ Minimum pipe size of 3/4"; NO flex pipe.

❑ Recommended a minimum of 10" WC inlet

pressure for natural gas.

❑ Soap and water solution used to check all

connections and fittings for possible gas leak.

❑ Gas company inspected installation (if required).

❑ Measure the combustion (CO2%) level.

D. Relief Valve

❑ Discharge line run to open drain.

❑ Discharge line protected from freezing.

E. Venting

❑ All pipe connections are secure (at blower, vent

terminals and for each pipe joint connection), and

all pipes properly supported.

❑ Vent terminals mounted properly in allowed

locations, with proper clearances .

F. Condensate

❑ Condensate trap installed and primed.

❑ Condensate neutralizer installed (if required).

G. Wiring

❑ Correct power supply (120 VAC).

❑ Electrical connections are tight.

❑ Water heater is properly grounded with proper

polarity.

Installation Check List

TABLE 2

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

Nominal Internal

Iron Pipe Size, Diameter

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

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 of Pipe, Feet

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.

NOTE: Each water heater should have its own

regulator located a minimum of 8' from unit.

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.)

Operation

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.

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

CAUTION

1. TEMPERATURE SETTINGS — The temperature is

adjusted to 120° F when shipped from the factory. To

meet commercial water use needs, it is adjustable up

to 185°F (85°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.

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 plumb-

er or the local plumbing authority for further information.

Outlet water temperature will vary during normal operat-

ing cycles. Reliable temperature readings should be taken

shortly after main burner cycles off during a period of little

or no use.

2. EMERGENCY SHUTDOWN —

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.

DANGER

WA RNING

User Interface

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

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 set-

tings.

Warm: 110°F

Hot: 140°F

Very hot: 180°F

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,

bacnet, and the time/date.

Status: Standby

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

bacnet time/date

basic configs schedule

User Interface

BASIC SETTINGS: The basic settings in you 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 differential

temperature set point, turning on/off 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 ad-

justed with the up/down arrows.

The Differential can be adjusted from 1°F to 30°F. The

recommended differential is 12°F.

This water heater has a modulation algorithm that can

be disabled by tapping ‘No’ in front of Modulation Dis-

abled and making adjustments by tapping the up/down

buttons.

Water heater behavior in response to leak can be

changed from Alarm Only to Disable When Leak De-

tected.

Shutoff Valve (on premium models only) behavior re-

sponse can be selected to the following:

• Open

• Closed

• Close if Leak Detected: Always close the valve when

leak is detected.

• Close if Unocc. Leak Detected (based on unoccupied

times from the schedule function). Water heater will

alarm only during the operating hours.

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 automati-

cally adjust the time for daylight savings.

BacNet

This water heater is compatible with BacNet MS/TP

protocol. Please refer to the GHE BacNet instruction

sheet for details on the setup.

basic settings

Temperature Display

Screen Adjustment Lock?

Beep On Alarm

EcoNet Network Instance

Elevation

Fahrenheit

Enabled

Normal

config. settings

Differential Temp Setpt.

Recirc. Pump Config

Aux Input Select

Aux Output Select

Modulation Disabled?

When Leak Detected

12.0° F

Off

Flow Sensor

None

Alarm Only

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

morning/night run times.

By selecting a day and then access-

ing 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 sav-

ings time.

Status Menu

The Status screen provides information on the current

operating status, diagnostics and sensors. This screen

also provides information on the WiFi status.

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

you will be brought to a prompt showing you the cur-

rent 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 heat-

er will bring you to a prompt showing you the current

temperatures of the lower/upper tank, Flue tempera-

ture, 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 Ser-

vice" 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.

User Interface

By pressing the Status button, you will

be taken to a prompt showing the state

of your water heater’s many features.

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 allow-

ing 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: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

Status: Standby

Gas Line Press. Switch

Gas Valve State

Fan Prove Press. Switch

Air Intake Press. Switch

Exhaust Press. Switch

Current Fan Speed

Flame Current

Open

Closed

Open

Closed

0 RPM

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

Status: Standby

Upper Tank Temp

Lower Tank Temp

Flue Temperature

ECO Switch State

Auxiliary Relay State

159.8°

68.6°

92.7°

Closed

None

service

Product Model Number:

Product Serial Number:

Software Version Number: WH-GHE1-00-00-86

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 and tank health status. The com-

bustion health and tank health each have three levels

of health:

SERVICE ALERTS: By selecting the Service alerts func-

tion 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

service alerts

Drain & Inspect Tank:

Check Venting:

Clean Drain Trap:

Replace Neutralizer:

Enabled

9 months

6 months

1500 hours

9.0 left

6.0 left

1500 left

By selecting “more info” you can

be given a more in-depth explana-

tion 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 indi-

cator 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

This symbol will appear if your

tank health status has reached criti-

cal. Pressing this icon will take the

user to the System Health 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. Reliability Decreasing

-begin planning for

service and/or replace-

ment.

3. Needs Servicing

-contact your service

provider

TANK HEALTH:

1. Powered anode protect-

ing tank

-no action needed

2. Anode protection ending

-begin planning for ser-

vice and/or replacement.

3. Anode no longer protect-

ing tank.

-contact your service

provider

system health

(typical 10K cyc/yr)

(typical 2K hrs/yr)

Combustion Health Status: Operating Normally

Tank Health Status: Powered Anode Protecting Tank

Lifetime Heating Cycles:

Lifetime Run Time Hours:

0.0

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

Gas Valve GHE119-500 Model ONLY

Inside the Service Menu, there is a button to make

gas valve adjustments.

Pressing the “Gas Valve Adj Test” button will change

the screen to the Test Screen. Confirm the conditions

are met.

Press the “Start Test” button to begin the test.

Once the test is started, the screen will show an ini-

tial “Awaiting Response” message with a countdown

timer.

If the Ignition Control cannot respond, the test will

be ended, and the screen will back out to the Service

Screen for the test to be restarted from the beginning.

After a response from Ignition Control is made, the

screen will transition to the “Running” Screen. The

timer will be set to 10 minutes and begin to count-

down. The tank temperature and fan speed will be

displayed.

Connect CO2 analyzer. After sample is collected and

is a suitable reading, adjust the gas valve by turning

the offset in the appropriate direction. Use a 2.5mm

(3/32”) hex head tool to adjust the gas valve offset.

Gas Valve Adjustments

service

Product Model Number:

Product Serial Number:

Software Version Number:

Gas Valve Adj Test

WH-GHE1-00-01-43

current

alarms

alarm

history

system

health

service

alerts

Gas Valve Adjustment Test

The following conditions must be met to run this test:

1. No active Alarm codes (A-Codes)

2. Mode of Operation = Heating/Disables*

*=Disabled when the Gas Valve Adjustment Test has

already been attempted, not when the Disable

button has been pressed on the main screen

Press Start Test button to initiate test

Start Test

Gas Valve Adjustment Test

Awaiting confirmation from ignition Control...

Time remaining 12 sec.

End Test

Gas Valve Adjustment Test

Ignition control did not respond.

Test Ending.

Gas Valve Adjustment Test

Test Running...

Test Time Remaining: 580 sec.

Upper Tank Temperature 116.5*

Current Fan Speed: 3119 rpm

End Test

Shutter screw used

to adjust CO2% at

full input.

Offset screw used to

adjust CO2% at ignition/

lower speed.

Gas Valve GHE119-500 Model ONLY

The target CO2% is from 10-10.8% (2.4-3.8% O2) at

the lower fan speed during the gas valve adjustment

test.

The target CO2% is approximately 9% (5.5% O2)

when the blower is at full input/normal operation. (not

during gas valve adjustment test)

Upon completing any necessary gas valve adjust-

ments, press the “End Test” button to complete the

test, else the test will continue until the timer expires.

If the duration timer expires during the test, the test

timed out, and a message will appear on the screen.

The Ignition Control will transition to Post-Purge be-

fore Disabling, and then the test will end.

Press the back arrow to exit to the service menu.

If, during the gas valve adjustment test, the tank tem-

perature exceeds that of the setpoint temperature,

the test will end. The unit will go into Post-Purge and

a “Heating Cycle Completed” message will appear on

the screen.

Once the Post-Purge is completed, the “Test Com-

pleted” message will appear on the screen.

Press the back arrow to back out of the Test Screen

and go to the Service Screen.

If the ignition control reads “Fault” or “Disabled,” the

test will end, and the corresponding message will ap-

pear.

Press the back arrow to go back to the Service Screen

to continue the test, or power cycle the water heater if

finished

If the “End Test” button is pressed while the test is

running, the test will stop, and the corresponding

message will appear.

The Ignition Control will transition to Disabled, back

out of the Test Screen to go back to the Service

Screen.

Gas Valve Adjustments (Cont.)

Gas Valve Adjustment Test

Test timed out and may not have completed.

Gas Valve Adjustment Test

Heating Cycle Completed - Stopping Test...

Gas Valve Adjustment Test

Test Complete.

If further testing is required, press the back arrow

to return to the Service Screen in order to continue

adjustment of the unit.

If no further testing is required, power cycle

the water heater.

Gas Valve Adjustment Test

System Ended Test.

If further testing is required, press the back arrow

to return to the Service Screen in order to continue

adjustment of the unit.

If no further testing is required, power cycle

the water heater.

Gas Valve Adjustment Test

User Ended Test.

Detailed view

of offset

adjustment

screw.

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 COLLECTOR PAN —Remove any particles.

C. CONDENSATE TRAP — Check for blockages.

D. ELECTRICAL CONNECTIONS — Periodic inspection

of all electrical connections and wiring conditions.

For Triton HD, inspect relay to ensure operation of

contacts. Recommend yearly replacement

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and danger-

ous operation.

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.

Any new installation should have a tank inspection

program set up initially for frequent inspection. The

first inspection should be within a six month period.

Once the scaling tendencies have been established,

the inspection program can be modified to suit the

water conditions. Cleaning should be performed if

the scale has accumulated above the drain valve

opening.

A wet-dry shop vac with a nozzle fashioned from 1”

and/or 3/4” polyethylene pipe makes a good tool for

scraping and removing scale.

TO CLEAN OR INSPECT TANK:

1. Shut off gas valve and drain tank.

2. Remove the tank clean-out cover on the jacket

and, with a pocket knife, cut and remove a circular

plug of insulation the full size of the jacket open-

ing.

3. Loosen the nut on the seal plate assembly enough

to twist the yoke sideways. Hold the assembly se-

curely and push inward, then remove the assembly

from the tank.

4. Remove as much built-up scale from the flue tubes

and the tank bottom as practical. DO NOT allow

the cleaning tool to damage the glass lining.

5. Clean the seal plate and install a new gasket. Wipe

clean the interior surface of the tank that contacts

the gasket. Reinstall the seal plate and tighten

in position. Fill the tank with water and check for

leaks. If no leaks are found, install the insulation

plug and clean-out cover on the jacket and re-light

the water heater.

If chemical lime dissolving cleaners are preferred,

cautiously follow the instructions supplied with the

cleaner. DO NOT use a muriatic or hydrochloric acid

(HCl) base cleaner.

2. 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 page 33.

F. 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 posi-

tioned and securely attached. Remove any obstruc-

tions in the vent connector or vent terminal.

Periodically clean the screens in the vent and air-

inlet terminals (if applicable).

In applicable climates, periodically inspect the vent

and air-inlet terminals to ensure they are not blocked

by snow.

G. BURNER- Cleaning of the burner is not necessary.

Flame rod and ignition cleaning yearly.

H. IGNITOR AND FLAME ROD - Cleaning of the ignitor

and flame rod yearly.

Maintenance

CAUTION

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 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 discon-

nected

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 har-

nesses to the blower are properly installed. Make

sure that there is no damage the harnesses or con-

nectors.

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 pres-

sure 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

Status: Standby

StatusSettings

warm hot very hot

Disable

120°

Service

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

ANY REASON.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause

improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING!

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: A GHE Training Manual is available through the Technical Services Department for a

more detailed troubleshooting and repair guide.

CAUTION

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 abnor-

mal 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.

Before You Call For Service…

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 o󰀨/on. If

problem persists, please contact technical support or

service provider.

A002

Flame not stable lockout. Lost ame three times during

one heat cycle. This will disable the heater.

A002 Flame is not stable.

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

problem persists, please 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, please contact technical support or service

provider.

A004

The proof of air ow 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, please contact technical support or service

provider.

A005

The proof of air ow 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, please contact technical support or service

provider.

A006

The proof of air ow switch was detected open during

post purge operation.

A006 PoF Switch error P. Check Blower/Wiring.

->Check switch wiring and venting. If problem

persists, please contact technical support or service

provider.

A007

Exhaust ue 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, please contact technical support or service

provider.

A008

The proof of air ow 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 o󰀨. Please contact technical support or

service provider.

T009

Gas pressure is below minimum specied. This will

cause di󰀩culties lighting the unit.

T009 No Gas detected. Check gas connections

->Verify gas supply to the unit. Check wiring to the

gas pressure switch. If problem persists contact techni-

cal support.

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 tempera-

ture has decreased. If problem persists please 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 circuit-

ed. 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

->Please 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

->Please 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 o󰀨 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 o󰀨 and on. If

problem persists please contact technical support or

service provider.

A029 Unit did not ignite. A029 Failed ignition. Retrying.

A030 Unit lost ame. A030 Flame lost during heating. Retrying.

A031

Powered anode control is no longer communicating

with the ignition control. This will override any other

anode based alarms.

A031 Powered Anode Communication failure

->Unit will continue to operate. Please contact your

qualied service provider.

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 sup-

port or service provider.

A033

Exhaust ue 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 sup-

port 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 sup-

port or service provider.

T035

Gas relay #1 contacts did not close. The unit will contin-

ue to try and close the relay to initiate combustion.

A035 Gas Relay 1 stuck open. Call Tech Service

->If problem persists, please contact technical sup-

port 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 sup-

port or service provider.

Before You Call For Service…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

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 sup-

port or service provider.

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 sup-

port or service provider.

A039

This is a control board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A039 Flame sense cct fault. Call Tech Service

->If problem persists, please contact technical sup-

port or service provider.

A040

This is a control board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A040 Controller RAM fault. Call Tech Service.

->If problem persists, please contact technical sup-

port or service provider.

A041

This is a control board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A041 Controller ROM fault. Call Tech Service.

->If problem persists, please contact technical sup-

port or service provider.

A042

This is a control board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A042 Controller EEPROM fault. Call Tech Svc.

->If problem persists, please contact technical sup-

port or service provider.

A043

This is a control board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A043 IC Program execution fault. Call Tech Svc

->If problem persists, please contact technical sup-

port 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 sup-

port or service provider.

A101

This is a display board hardware fault and requires con-

trol board replacement if persistent. This will disable

the heater.

A101 Conguration 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 con-

trol board replacement if persistent. This will disable

the heater.

A103 Time Clock not advancing time properly

->Please contact your qualied service provider.

A104

Presence of water detected by the leak sensor in the

bottom pan. If water is seen locate source and take ap-

propriate action to correct the issue. This may disable

the heater based on conguration settings.

A104 Water Leak Detected

->The presence of water has been detected by the

control. Please contact a qualied service provider.

Before You Call For Service…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

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 techni-

cal 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

conguration settings. Check wiring between the dis-

play 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.

A109

CO sensor detects presence of carbon monoxide gas

above the threshold limit. This will disable the heater.

A109 External CO Sensor Alarm: Heater Disabled

->Immediately contact a qualied service provider.

A110

Monthly test of automatic shuto󰀨 valve (premium mod-

els only) was not completed properly. The valve did not

close in the allotted time.

A110 Shuto󰀨 Valve Test Close Error

->Auto Shuto󰀨 valve failed to close during test

cycle. Please contact technical support or service

provider.

A111

Monthly test of automatic shuto󰀨 valve (premium mod-

els only) was not completed properly. The valve did not

open in the allotted time. This will disable the heater.

A111 Shuto󰀨 Valve Test Open Error

->Water heater has been disabled. Manually open

valve. Please contact technical support or service

provider.

A112

Automatic shuto󰀨 valve (premium models only) is

closed. This will disable the heater.

A112 Shuto󰀨 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 ame rod current has deviated from the startup

average. This is indicative of degradation of the ame

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 ame rod current has deviated from the startup

average by a signicant amount. Clean and inspect

ame rod. Replace if necessary.

T114 Flame Rod Degraded and Needs Servicing

->Clean or replace per use and care manual.

Please contact technical support for assistance.

A115

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.

Please contact technical support or service provider for

assistance.

A116

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.

A121

One or more powered anodes do not sense water in

the tank. This can also be caused by an “open” circuit

on an anode. Check anode wiring. Ensure tank is com-

pletely full. This will disable the heater.

A121 No Water Detected in Tank

->Fill the tank with water. If error persists, please

contact technical support or service provider.

T122

No communication with the powered anode controller

for >60 seconds. If the green LED on top of the anode

control is solid, the anodes are still protecting the tank.

T122 Powered Anode Control Comm Failure

->Check wiring connections of the anode control

board. If error persists, please contact technical support

or service provider.

T123

Anode “open” circuit. This can be caused by wiring

damage, wiring disconnected, or anode damage.

T123 Upper Anode Open

->Check wiring connections for the upper anode.

If error persists, please contact technical support or

service provider.

T124

Anode control common and the power connection for

this anode cross connected.

T124 Upper Anode Mounting Error

->Check wiring connections for the upper anode.

If error persists, please contact technical support or

service provider.

T125

Anode “short” circuited. This can be caused by wiring

damage, anode damage, or the anode in contact with

the tank.

T125 Upper Anode Shorted

->Check wiring connections for the upper anode.

If error persists, please contact technical support or

service provider.

T126

Anode power = 100%. The anode system has reached

its protective limits on one or more anode elements.

T126 Upper Anode Overload

->Upper Anode has reached full capacity. Tank may

not be fully protected. Please contact technical support

or service provider.

T127

Anode power > 70%. The anode system is approaching

its protective limits on one or more anode elements.

T127 Upper Anode Pre-Overload

->Upper Anode near end of useful life but will con-

tinue protecting tank. Please contact technical support.

T128

Anode “open” circuit. This can be caused by wiring

damage, wiring disconnected, or anode damage.

T128 Middle Anode Open

->Check wiring connections for the middle anode.

If error persists, please contact technical support or

service provider.

T129

Anode control common and the power connection for

this anode cross connected.

T129 Middle Anode Mounting Error

->Check wiring connections for the middle anode.

If error persists, please contact technical support or

service provider.

Before You Call For Service…

Alarm (‘A’)

and Alert

(‘T’) Codes

Description Current Alarm Screen Display

T130

Anode “short” circuited. This can be caused by wiring

damage, anode damage, or the anode in contact with

the tank.

T130 Middle Anode Shorted

->Check wiring connections for the middle anode.

If error persists, please contact technical support or

service provider.

T131

Anode power = 100%. The anode system has reached

its protective limits on one or more anode elements.

T131 Middle Anode Overload

->Middle Anode has reached full capacity. Tank

may not be fully protected. Contact technical support or

service provider.

T132

Anode power > 70%. The anode system is approaching

its protective limits on one or more anode elements.

T132 Middle Anode Pre-Overload

->Middle Anode near end of useful life but will con-

tinue protecting tank. Please contact technical support.

T133

Anode “open” circuit. This can be caused by wiring

damage, wiring disconnected, or anode damage.

T133 Lower Anode Open

->Check wiring connections for the upper anode.

If error persists, please contact technical support or

service provider.

T134

Anode control common and the power connection for

this anode cross connected.

T134 Lower Anode Mounting Error

->Check wiring connections for the lower anode.

If error persists, please contact technical support or

service provider.

T135

Anode “short” circuited. This can be caused by wiring

damage, anode damage, or the anode in contact with

the tank.

T135 Lower Anode Shorted

->Check wiring connections for the lower anode.

If error persists, please contact technical support or

service provider.

T136

Anode power = 100%. The anode system has reached

its protective limits on one or more anode elements.

T136 Lower Anode Overload

->Lower Anode has reached full capacity. Tank may

not be fully protected. Contact technical support or

service provider.

T137

Anode power > 70%. The anode system is approaching

its protective limits on one or more anode elements.

T137 Lower Anode Pre-Overload

->Lower Anode near end of useful life but will con-

tinue protecting tank. Please contact technical support.

T138

Anode “open” circuit which could be caused by wiring

damage, wiring disconnected or anode damage.

T138 Anode 4 Open

->Check wiring connections for anode #4. If error

persists, please contact technical support or service

provider.

T140

Anode “short” circuited which could be caused by wiring

damage, anode damage or the anode is in contact with

the tank. This is not a connector issue and not caused

from leaking. This can only be a failed anode.

T140 Anode 4 Shorted

->Check wiring connections for anode #4. If error

persists, please contact technical support or service

provider.

T141

Anode power ≥ 100% and has reached its protective

limit.

T141 Anode 4 Overload

->Anode #4 has reached full capacity. Tank may not

be fully protected. Contact technical support or service

provider.

T142

Anode power > 87% but < 100%. The anode is ap-

proaching its protective limit.

T142 Anode 4 Pre-Overload

->Anode #4 has reached full capacity. Tank may not

be fully protected. Contact technical support or service

provider.

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.

Flame Sensor Kit

Control Board

Display Kit

Relief Valve

Water Temperature and

ECO Probe

Power Anode

Lower Thermostat

Transformer Wire Harness

Hand Hole

(under cover)

Drain Valve

Exhaust Tee

Assembly

Water Flow Sensor

(SS Only)

Auto Shut-off

(SS Only)

Diffuser Nipple

On / Off Switch

POF & Intake

Pressure switch

Side Panel Covers

Top Pan Wire

Harness

Blower / Gas Valve /

Burner Assembly Kit

Igniter Kit

GHE80SS, GHE80SU

GHE100SS, GHE100SU

Water Flow Sensor

(SS Only)

Auto Shut-off

(SS Only)

Diffuser

Nipple

Replacement Parts

Flame Sensor Kit

Control Board

Display Kit

Relief

Valve

Water Temperature and

ECO Probe

Power Anode

Lower

Thermostat

Transformer

Wire Harness

Hand Hole

(under cover)

Drain Valve

Exhaust Tee

Assembly

On / Off Switch

POF & Intake

Pressure switch

Blower / Gas Valve /

Burner Assembly Kit

Igniter Kit

GHE119SS, GHE119SU

Wiring and Schematic Diagrams

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

OPERATION AFTER SERVICING!

CAUTION

AX5631

GHE80/100 Diagram

Wiring and Schematic Diagrams

GHE119 Diagram

Important Instructions for the Commonwealth of Massachusetts

The Commonwealth of Massachusetts requires com-

pliance 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 fol-

lows:

(1) Revise NFPA-54 section 10.5.4.2 by adding a sec-

ond 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 pur-

poses, 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 lim-

ited to decks and porches, the following requirements

shall be satisfied:

1. INSTALLATION OF CARBON MONOXIDE DETEC-

TORS. At the time of installation of the side wall hori-

zontal 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 oper-

ated 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 ser-

vices of qualified licensed professionals for the instal-

lation 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 subdi-

vision 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; pro-

vided, 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 accor-

dance with the above provisions shall comply with

NFPA 720 and be ANSI/UL 2034 listed and IAS certi-

fied.

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 inspec-

tion, the inspector observes carbon monoxide detec-

tors and signage installed in accordance with the pro-

visions 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 "Equip-

ment 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.

MENT VENTING SYSTEM PROVIDED. When the

manufacturer of Product Approved side wall horizon-

tally vented gas equipment provides a venting system

design or venting system components with the equip-

ment, the instructions provided by the manufacturer

for installation of the equipment and the venting sys-

tem shall include:

1. Detailed instructions for the installation of the vent-

ing 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 EQUIP-

MENT VENTING SYSTEM NOT PROVIDED. When the

manufacturer of a Product Approved side wall hori-

zontally vented gas fueled equipment does not pro-

vide 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" instruc-

tions shall be included with the appliance or equip-

ment 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 installa-

tion instructions.

(e) A copy of all installation instructions for all Prod-

uct Approved side wall horizontally vented gas fueled

equipment, all venting instructions, all parts lists for

venting instructions, and/or all venting design instruc-

tions shall remain with the appliance or equipment at

the completion of the installation.

Notes

The following Gasket is required for tank cleanout maintenance for all models:

SP5886 Tank Handhole Sealplate Gasket

All other Parts can be ordered by providing the following information:

1. Description of Part(s), such as:

Gas Valve

Igniter

Burner

Switch/Sensor

Blower Assembly

Anode Rods

Or other parts as required (see replacement parts section).

2. Quantity of each part required.

3. Complete model number and name of the water heater.

4. Serial Number of water heater.

5. Specify Type of Gas.

6. Address Parts Orders to your distributor or dealer.

NOTICE: For installations requiring NSF 5 compliance, order kit AS42690A or B to meet sealing

requirements and NSF 5 label.

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:

In The U.S.A.:

Rheem Manufacturing Co., Water Heater Division

ATTN: Technical Service

800 Interstate Park Drive

Montgomery, AL 36109

Phone: 1-800-432-8373

In CANADA:

Rheem Canada, Ltd. / Ltée

125 Edgeware Road, Unit 1

Brampton, ON L6Y 0P5

Phone: 1-800-268-6966.

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 ser-

vice 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

Rheem GHE80SU-300A Triton Heavy Duty SU

Product's Documents

Use and Care Manual

Specifications

Rheem GHE80SU-300A Questions and Answers