State PR6 75 XRPDT User Manual

Name: State PR6 75 XRPDT
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Instruction Manual for Residential

Power Direct Vent Gas Water Heaters

NOT FOR USE IN MANUFACTURED (MOBILE) HOMES

GAMA certification applies to all residential gas water heaters with capacities of 20 to 100 gallons with input rating of 75,000 BTU/Hr. or less.

ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.

For Your SafetyAN ODORANT IS ADDED TO THE GAS

USED BY THIS WATER HEATER

WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result, causing property damage, personal injury or death.

–Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

–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. Follow the gas supplier's instructions.

•If you cannot reach your gas supplier, call the fire department.

–Installation and service must be performed by a qualified installer, service agency or the gas supplier.

Save this Manual for Future Reference.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Refer to this manual for assistance or consult the local gas utility for further information.

WARNING

Flammable vapors may be drawn by air currents from other areas of the structure to this appliance.

WARNING

READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR OPERATING THIS WATER HEATER.

184333-003

11-05

General Safety

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Refer to this manual or consult your local gas utility for further assistance.

WARNING

At the time of manufacture this water heater was provided with a combination temperature-pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, and the current edition of ANSI Z21.22 and the code requirements of ASME. If replaced, the valve must meet the requirements of local codes, but not less than a combination temperature and pressure relief valve certified as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials.

The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 lbs. p.s.i.) and a discharge capacity not less than the water heater input rate as shown on the model rating plate. (Electric heaters - watts divided by 1000 x 3412 equal BTU/Hr. rate.)

Your local jurisdictional authority, while mandating the use of a temperature-pressure relief valve complying with ANSI Z21.22 and ASME, may require a valve model different from the one furnished with the water heater.

Compliance with such local requirements must be satisfied by the installer or end user of the water heater with a locally prescribed temperature-pressure relief valve installed in the designated opening in the water heater in place of the factory furnished valve.

For safe operation of the water heater, the relief valve must not be removed from it’s designated opening or plugged. The temperature-pressure relief valve must be installed directly into the fitting of the water heater designated for the relief valve. Position the valve downward and provide tubing so that any discharge will exit only within 6 inches above, or at any distance below the structural floor. Be certain that no contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet, or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve.

No valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge Drain unless a 6″ air gap is provided. To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connected to a drain or other suitable means, the water flow may cause property damage.

The Discharge Pipe:

—Must not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions.

—Must not be plugged or blocked.

—Must be of material listed for hot water distribution. —Must be installed so as to allow complete drainage of both

the temperature-pressure relief valve, and the discharge pipe.

—Must terminate at an adequate drain.

—Must not have any valve between the relief valve and tank.

WARNING

WATER HEATERS EQUIPPED FOR ONE TYPE GAS ONLY: This water heater is equipped for one type gas only. Check the model rating plate near the gas control valve for the correct gas. DO NOT USE THIS WATER HEATER WITH ANY GAS OTHER THAN THE ONE SHOWN ON THE MODEL RATING PLATE. Failure to use the correct gas can cause problems which can result in DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. If you have any questions or doubts consult your gas supplier or local utility.

WARNING

A fire can start if combustible materials such as clothing, cleaning materials, or flammable liquids are placed against or next to the water heater.

WARNING

INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQUIDS (VAPORS) ARE LIKELY TO BE PRESENT OR STORED (GARAGES, STORAGE, AND UTILITY AREAS, ETC): Flammable liquids (such as gasoline, solvents, propane (LP) or butane, etc.), all of which emit flammable vapors, may be improperly stored or used in such areas. The gas water heater ignitor or main burner can ignite such vapors. The resulting flashback and fire can cause death or serious burns to anyone in the area, as well as property damage.

If installation in such areas is your only option, then the installation must be accomplished in a way that the ignitor and main burner flame are elevated from the floor at least 18 inches. While this may reduce the chances of flammable vapors from a floor spill being ignited, gasoline and other flammable substances should never be stored or used in the same room or area containing a gas water heater or other open flame or spark producing appliance.

NOTE: Flammable vapors may be drawn by air currents from other areas of the structure to the appliance.

WARNING

HOTTER WATER CAN SCALD: Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy clothes washing, dish washing, and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by hot water than others. These include the elderly, children, the infirm, or physically/mentally handicapped. If anyone using hot water in your home fits into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precautions. In addition to using the lowest possible temperature setting that satisfies your hot water needs, some type of tempering device, such as a mixing valve, should be used at the hot water taps used by these people or at the water heater. Mixing valves are available at plumbing supply or hardware stores. Follow manufacturers instructions for installation of the valves. Before changing the factory setting on the thermostat, read the “Temperature Regulation” section in this manual.

WARNING

BEFORE OPERATING [PROPANE (L.P.) GAS WATER HEATERS]: Propane (L.P.) gas is heavier than air. Should there be a leak in the system, the gas will settle near the ground. Basements, crawl spaces, skirted areas under manufactured (mobile) homes (even when ventilated), closets and areas below ground level will serve as pockets for the accumulation of this gas. Before attempting to operate the water heater or turning on a nearby electrical light switch, be absolutely sure there is no accumulated gas in the area. Search for odor of gas by sniffing at ground level in the vicinity of the appliance. If odor is detected, follow steps indicated at “For Your Safety” on the cover page of this manual then leave the premises.

General Safety (cont’d)

WARNING

This water heater must not be installed directly on carpeting. Carpeting must be protected by a metal or wood panel beneath the appliance extending beyond the full width and depth of the appliance by at least 3 inches (76.2mm) in any direction, or if the appliance is installed in an alcove or closet, the entire floor must be covered by the panel. Failure to heed this warning may result in a fire hazard.

WARNING

Do not install in a confined area such as a closet, unless you provide ventilation air as shown in the “Locating The New Water Heater” section. Never obstruct the flow of ventilation air. If you have any doubts or questions at all, call your gas company. Failure to provide ventilation air can result in a fire or explosion and can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.

WARNING

If this water heater will be used in beauty shops, barber shops, cleaning establishments, or self-service laundries with dry cleaning equipment, it is imperative that the water heater or water heaters be installed so that combustion and ventilation air be taken from outside these areas. Refer to the “Locating The New Water Heater” section of this manual and also the current edition of the National Fuel Gas Code, ANSI Z223.1, also referred to as NFPA 54 for specifics provided concerning air required.

WARNING

The power direct vent water heater requires its own (separate) venting system. It cannot be connected to an existing vent pipe or chimney. It must be terminated to the outdoors. Failure to properly install the venting system can result in asphyxiation, a fire or explosion and can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.

WARNING

No vent damper installation is compatible with this power vented water heater design. No vent damper, whether it is operated thermally or otherwise is to be installed on this power vented water heater. Alteration of any part of the factory-furnished vent assembly could result in improper operation due to restriction of flue gases, spillage of flue gases and may cause carbon monoxide poisoning.

WARNING

1.The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the gas system at test pressures in excess of 1/2 pound per square inch (3.5kPa).

2.The appliance must be isolated from the gas supply piping

system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal or less than 1/2 pound per square inch (3.5kPa).

WARNING

Soot build-up indicates a problem that requires correction before further use. Turn “OFF” gas to water heater and leave “OFF” until repairs are made, because failure to correct the cause of the sooting can result in a fire or explosion causing DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.

WARNING

The water heater must be properly vented outdoors. Never operate the water heater unless it is vented to the outdoors and has adequate air supply to avoid risks of improper operation, explosion or asphyxiation.

WARNING

Vent termination must not be within 4 feet of any items such as
gas meters, gas valves or other gas regulating equipment.	3
	3

WARNING

Obstructed or deteriorated vent systems may present a serious health risk or asphyxiation.

WARNING

Chemical vapor corrosion of the flue and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach, and process chemicals are typical compounds which are potentially corrosive.

WARNING

Minimum clearances between the water heater and combustible and non-combustible construction are: 0 inches from sides, 0 inches from back, 6 inches from front of jacket to closet door and 12 inches from top of jacket to combustible and non-combustible material. Minimum vent clearance: 0 inches. Provide 24 inches front clearance for servicing and adequate clearance between the jacket top and ceiling for servicing the flue area.

WARNING

HYDROGEN GAS: Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable and explosive. To prevent the possibility of injury under these conditions, we recommend the hot water faucet be opened for several minutes at the kitchen sink before any electrical appliances which are connected to the hot water system are used (such as a dishwasher or washing machine). If hydrogen gas is present, there will probably be an unusual sound similar to air escaping through the pipe as the hot water faucet is opened. There must be no smoking or open flame near the faucet at the time it is open.

WARNING

INSULATING JACKETS: When installing an external water heater insulation jacket on a gas water heater:

a.DO NOT cover the temperature-pressure relief valve.

b.DO NOT put insulation over any part of the top of the gas water heater.

c.DO NOT put insulation over the gas control valve or gas control valve/burner cover, or any access areas to the burner.

d.DO NOT let insulation around the gas water heater to get within 8 inches of the floor (access for servicing the burner).

e.DO NOT remove operating instructions, and safety related warning labels and materials affixed to the water heater. DO obtain new warning and instruction labels from the manufacturer for placement on the jacket directly over the existing labels.

Failure to heed this will result in the possibility of a fire or explosion.

WARNING

Flood damage to a water heater may not be readily visible or immediately detectible. However, over a period of time a flooded water heater will create dangerous conditions which can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Call a qualified service technician or contractor to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced!

CAUTION

WATER HEATERS EVENTUALLY LEAK: Installation of the water heater must be accomplished in such a manner that if the tank or any connections should leak, the flow of water will not cause damage to the structure. For this reason, it is not advisable to install the water heater in an attic or upper floor. When such locations cannot be avoided, a suitable drain pan should be installed under the water heater. Drain pans are available at your local hardware store. Such a drain pan must have a minimum length and width of at least 2 inches greater than the water heater dimensions and must be piped to an adequate drain. Drain pan depth must allow for access to the outer doors for servicing the ignitor and burner.

Table of Contents
General Safety...............................................................................................................................	2-3
Table of Contents.........................................................................................................................	4
Introduction.........................................................................................................................................	5
Preparing for the New Installation..................................................................	5
Typical Installation....................................................................................................................	6
Locating the New Water Heater......................................................................	7-9
Facts to Consider About Location.......................................................................................................................	7-8
Combustion Air and Ventilation .........................................................................................................................	8-9
Venting Clearances ..........................................................................................................................................	8-9
Air for Ventilation for Appliances Located in Confined Spaces ..............................................................................	9
Installing the New Water Heater................................................................	10-20
Water Piping .......................................................................................................................................................	10
Temperature-Pressure Relief Valve ......................................................................................................................	11
Filling the Water Heater ......................................................................................................................................	12
Wiring............................................................................................................................................................	12-13
Optional Field Installed Wiring ....................................................................................................................	12-13
Wiring Diagram.................................................................................................................................................	13
Venting ..........................................................................................................................................................	13-18
Gas Piping .....................................................................................................................................................	18-19
Installation Checklist ...........................................................................................................................................	20
Operating..........................................................................................................................................	21-23
Temperature Regulation.................................................................................................	24
For Your Information.....................................................................................................	25-26
Start Up Conditions .............................................................................................................................................	25
Condensation ....................................................................................................................................................	25
Smoke/Odor......................................................................................................................................................	25
Thermal Expansion............................................................................................................................................	25
Strange Sounds..................................................................................................................................................	25
Operational Conditions..................................................................................................................................	25-26
Smelly Water.....................................................................................................................................................	25
"Air” In Hot Water Faucets ................................................................................................................................	26
Venting Manual Reset Switch ............................................................................................................................	26
High Temperature Limit Switch .........................................................................................................................	26
Not Enough or No Hot Water............................................................................................................................	26
Water Is Too Hot...............................................................................................................................................	26
Periodic Maintenance ...................................................................................................	27-29
Venting System Inspection...................................................................................................................................	27
Burner Inspection ................................................................................................................................................	27
Burner Cleaning ..................................................................................................................................................	27
L.P. Gas Control Valve & Burner Assembly Replacement Information .................................................................	28
Housekeeping .....................................................................................................................................................	28
Anode Rod Inspection .........................................................................................................................................	28
Temperature-Pressure Relief Valve Operation......................................................................................................	29
Draining..............................................................................................................................................................	29
Drain Valve Washer Replacement.......................................................................................................................	29
Service ................................................................................................................................................................	29
Leakage Checkpoints............................................................................................................	30
Troubleshooting......................................................................................................................	31-33
Repair Parts....................................................................................................................................	34-37

Introduction

Thank You for purchasing this water heater. When installed according to State and Local Codes and maintained according to the manufacturers instructions, it should give you years of trouble free service.

Abbreviations Found In This Instruction Manual

CSA - Canadian Standards Association

ANSI - American National Standards Institute

NFPA - National Fire Protection Association

WARNING

This gas-fired water heater is design certified by CSA International under American National Standard/CSA Standard for Gas Water Heaters, ANSI Z21.10.1 • CSA 4.1 (current edition). The installation must conform with this manual, Local Codes and with the current edition of the National Fuel Gas Code, ANSI Z223.1.

This publication is available from your local government or public library, gas company, or by writing NFPA, Batterymarch Park, Quincy, MA 02269.

Preparing for the New Installation

1.Read the “General Safety” section, pages 2 and 3 of this manual first and then the entire manual carefully. If you don’t follow the safety rules, the water heater will not operate properly. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.

This manual contains instructions for the installation, operation, and maintenance of the gas-fired water heater. It also contains warnings through out the manual that you must read and be aware of. All warnings and all instructions are essential to the proper operation of the water heater and your safety. Since we cannot put everything on the first few pages, READ THE ENTIRE

MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER.

2.The installation must conform with the instructions in this manual; gas company rules; and Local Codes, or in the absence of Local Codes, with the current edition of the National Fuel Gas code, ANSI Z223.1, also referred to as NFPA 54. This publication is available from your local government or public library or gas company or by writing NFPA, Batterymarch Park, Quincy, MA 02269.

3.If after reading this manual you have any questions or do not understand any portion of the instructions, call the local gas utility or the manufacturer whose name appears on the rating plate.

4.Carefully plan the place where you are going to put the water heater. Correct combustion, vent action, and intake air and exhaust vent pipe installation are very important in preventing death from possible carbon monoxide poisoning and fires.

Examine the location to ensure the water heater complies with the “Locating the New Water Heater” section in this manual.

5.For California installation this water heater must be braced, anchored, or strapped to avoid falling or moving during an earthquake. See instructions for correct installation procedures. Instructions may be obtained from your local dealer, wholesaler, public utilities or California Office of the State Architect, 400 P Street, Sacramento, CA 95814.

6.Massachusetts Code requires this water heater to be installed in accordance with Massachusetts 248-CMR 2.00: State Plumbing Code and 248-CMR 5.00.

7.Complies with SCAQMD rule #1121 and districts having equivalent NOx requirements.

Typical Installation

FLUE

HOT WATER

TEMPERED

WATER OUTLET

required codes)

PIPE

WATER INLET

Some models are equipped with circulating loop fittings.

*HOT (OUTLET) RECIRCULATING LOOP CONNECTION CAN BE INSTALLED WITHIN 360° RADIUS

RELIEF	DIRECTION
	OF FLOW

CHECK VALVE

MARKED WITH

DIRECTION OF

FLOW ARROW

RECIRCULAT-

MUST

IN THE

POSITION

DIRECTION

OF FLOW

HEAT TRAP

*Certain models water heater. They (Part #9001262) are available through the manufacturer. See “Repair Parts” section for ordering information.

This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and

is considered suitable for:

Water (Potable) Heating: All models are “considered suitable for water (potable) heating.”

Water (Potable) Heating and Space Heating: Certain models are “considered suitable for water (potable) heating and space heating.” Refer to the model and rating plate of the water heater.

WARNING

When the system requires water at temperatures higher than required for other uses, the hot water system may require a means such as a mixing valve to be installed to temper the water at certain points of use. Some people are more likely to be permanently injured by hot water than others; these include the elderly, children, the infirm, or the physically/mentally handicapped. Before immersing yourself or anyone else in hot water, be sure to check the water temperature. WARNING: HOTTER WATER INCREASES THE RISK OF SCALD INJURY. (Also see “Temperature Regulation” section) Mixing valves are available at plumbing supply or hardware stores. Follow manufacturers instructions for installation of these valves.

WARNING

This water heater shall not be connected to any heating systems or component(s) previously used with a nonpotable water heating appliance.

If this water heater is also used for space heating applications, all piping and components connected to the water heater shall be suitable for use with potable water.

WARNING

Toxic chemicals such as used for treatment of boilers or non-potable water heating appliances shall never be introduced into a potable water space heating system.

NOTE: To protect against untimely corrosion of hot and cold water fittings, it is strongly recommended that di-electric unions or couplings be installed on this water heater when connected to copper pipe.

Locating the New Water Heater

Facts to Consider About the Location

You should carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. This water heater is not for use

in manufactured (mobile) homes or outdoor installation.

Whether replacing an old water heater or installing the water heater in a new location, the following critical points must be observed.

1.The location selected should be indoors as close as practical to the vent termination point, and as centralized with the water piping system as possible. The water heater, as all water heaters, will eventually leak. Do not install without adequate drainage provisions where water flow will cause damage.

2.If vented through an outside wall or through the roof using 3″ vent piping, the total vent run (vertical and horizontal) cannot exceed a total of 45 feet with one elbow. If more elbows are required, the venting distance must be reduced 5 feet for every 90° elbow. See page 15 for vent chart.

3.Vent piping cannot slope downward and horizontal runs require 1/8″ per five foot rise. All horizontal runs require adequate support at 31/2 foot intervals and vertical runs supported at 5 foot intervals.

4.The water heater requires its own (separate) venting system. It cannot be connected to an existing vent pipe or chimney. It must terminate to the outdoors. Whenever possible terminate the vent on the leeward side of the building through an outside wall. Note:

Condensation may be created, at times, as the combustion gases exit the vent cap and discoloration of surfaces in proximity to the vent cap may occur.

WARNING

5.The water heater comes equipped with a 7 foot power cord which can be used to connect to a 110/120 volt power source if (1) local codes allow, and (2) there is a three prong receptacle available.

6.The location selection must provide adequate clearances for servicing and proper operation of the water heater.

WARNING

INSTALLATION IN AREAS WHERE FLAMMABLE LIQUIDS (VAPORS) ARE LIKELY TO BE PRESENT OR STORED (GARAGES, STORAGE AND UTILITY AREAS, ETC): Flammable liquids (such as gasoline, solvents, propane (LP) or butane, etc.) or other substances (such as adhesives, etc.), all of which emit flammable vapors, may be improperly stored or used in such areas. The gas water heater ignitor or main burner can ignite such vapors. The resulting flashback and fire can cause death or serious burns to anyone in the area, as well as property damage.

Also, the water heater must be located and/or protected so it is not subject to physical damage by a moving vehicle. NOTE: Flammable vapors may be drawn by air currents from other areas of the structure to the appliance.

WARNING

Propellants of aerosol sprays and volatile compounds, (cleaners, chlorine based chemicals, refrigerants, etc.) in addition to being highly flammable in many cases, will also change to corrosive hydrochloric acid when exposed to the combustion products of the water heater. The results can be hazardous, and also cause product failure.

WARNING

Do not use an extension cord. If there is not a suitable receptacle with ground and/or local codes prohibit use of a power cord, field wiring must be provided.

CAUTION

WATER HEATERS EVENTUALLY LEAK: Installation of the water heater must be accomplished in such a manner that if the tank or any connections should leak, the flow of water will not cause damage to the structure. When such locations cannot be avoided, a suitable drain pan should be installed under the water heater. Drain pans are available at your local hardware store. Such a drain pan must have a minimum length and width of at least 2 inches greater than the water heater dimensions and must be piped to an adequate drain. Drain pan depth must allow for access to the outer doors for servicing the ignitor and burner.

WARNING

Minimum clearances between the water heater and combustible and non-combustible construction are: 0 inches from sides, 0 inches from back, 6 inches from front of jacket to closet door and 12 inches from top of jacket to combustible and non-com- bustible material. Minimum vent clearance: 0 inches. Provide 24 inches front clearance for servicing and adequate clearance between the jacket top and ceiling for servicing the flue area.

Figure 1

Locating the New Water Heater (cont’d)

Facts to Consider About the Location (cont’d)

WARNING

Do not install in a confined area such a closet, unless you provide ventilation air as shown in the “Locating The New Water Heater” section. Never obstruct the flow of ventilation air. If you have any doubts or questions at all, call your gas company. Failure to provide ventilation air can result in a fire or explosion and can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.

•The venting system must be installed in a manner which allows inspection of the installation of the venting pipes and joints as well as periodic inspection after installation as required by the National Fuel Gas Code ANSI Z223.1.

WARNING

Vent termination must not be within 4 feet of any items such as gas meters, gas valves or other gas regulating equipment.

WARNING

Combustion Air and Exhaust

WARNING

When determining the installation location for a power direct vent water heater, snow accumulation and drifting should be considered in areas where applicable.

Venting Through an Outside Wall – Clearances

•0″ clearance for 3″ PVC, ABS, or CPVC Schedule 40 piping from combustible surfaces.

•18″ minimum in all directions from any obstruction, such as a wall, that may interfere.

•12″ minimum from the ground and corners, 9″ ceiling overhangs. Figure 2.

•The Power Direct Vent outlet terminal shall terminate at least 36″ above any forced air inlet located within 10 feet. Figure 3.

•The Power Direct Vent outlet terminal of 50,000 BtuH input models or less shall terminate at least 9″ below, 9″ horizontally from or 9″ above any door, window or gravity air inlet into the building. Figure 3.

•The Power Direct Vent outlet terminal of over 50,000 BtuH input models shall terminate at least 12″ below, 12″ horizontally from or 12″ above any door, window or gravity air inlet into the building. Figure 3.

•18″ minimum from other natural draft (gravity) direct vent, power vent or power direct vent appliance inlet and/or outlet vent(s) when directly above or 135° to either side of center line. Figure 4, page 9.

•24″ minimum from any appliance inlet and/or outlet vents when directly below or 45° to either side of center line. Figure 4, page 9.

•The location selection must provide clearances for servicing and proper operation of the water heater. Figure 5.

•Vent termination must not be within 4 feet of any items such as gas meters, gas valves or other gas regulating equipment.

WARNING

Failure to have required clearances between water heater and combustible material will result in a fire hazard.

Figure 2

PDV

TERMINAL

12″ min.

Figure 3

A - 9″ min. (50,000 BtuH input models or less)

A - 12″ min. (over 50,000 BtuH input models)

9″ min. from any overhang

Lof Flue

12″ min.

PDV

TERMINAL

“B”

36″ min. IF “B” DIMENSION IS LESS THAN 120″

	FORCED AIR
GRADE	INLET
GRADE

CORNER INSTALLATION

OF INLET AND OUTLET

NOT RECOMMENDED

Locating the New Water Heater (cont’d)

6 1/2″ MIN.

VENT OUTLET ″

24 MAX.

″ 18

24″

45°

AIR INTAKE

18″

NATURAL DRAFT (GRAVITY) DIRECT VENT, POWER VENT, OR POWER DIRECT VENT APPLIANCE INLET AND/OR OUTLET VENT(S).

Figure 4

Must maintain adequate service and maintenance accessibility.

Range of degrees available for vent pipe installation.

Figure 5

WIRE FENCE

When the water heater outlet terminal is low enough to be touched accidentally, or is accessible to small children, a wire mesh chain link fence (as shown in Figure 6) may be used. Care should be taken to maintain adequate ventilation around the outlet terminal. If a chain link fence is installed, it must not be used as a storage area for items that may block proper ventilation.

NOT TO BE USED AS

A STORAGE AREA

Venting Through Roof – Clearances

•0″ clearance for 3″ PVC, ABS, or CPVC Schedule 40 piping from combustible and noncombustible surfaces.

•The vent exhaust outlet and air inlet terminals shall terminate at least 18 inches above the roof surface. Figure 7.

VENT PIPE SEPARATION

The inlet and outlet vent pipes must be separated by a minimum distance of 6 1/2 inches up to 24 inches maximum.

45° VENT CAP		90° STREET ELL
W/SCREEN
W/SCREEN

18″

Air for Ventilation for Appliances Located in Confined Spaces

Air for ventilation should be provided if installed in a confined space. Refer to the National Fuel Gas Code, ANSI Z223.1.

Figure 6

Installing the New Water Heater

Water Piping

WARNING

This water heater shall not be connected to any heating systems or component(s) used with a non-potable water heating appliance.

If a water heater is installed in a closed water supply system; such as one having a back-flow preventer, check valve, water meter with a check valve, etc. in the cold water supply; means shall be provided to control thermal expansion. Contact the water supplier or plumbing contractor on how to control this situation.

NOTE: To protect against untimely corrosion of hot and cold water fittings, it is strongly recommended that dielectric unions or couplings be installed on this water heater when connected to copper pipe.

The illustration shows the attachment of the water piping to the water heater. The water heater is equipped with 3/4 inch water connections.

NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the cold water inlet connection. Do not solder the cold water supply line directly to the cold water inlet or it will harm the dip tube.

NOTE: This water heater is insulated to minimize heat loss from the tank. Further reduction in heat loss can be accomplished by insulating the hot water lines from the water heater.

INTAKE FOR

COMBUSTION

AIR

EXHAUST VENT

TO OUTDOORS

AIR INTAKE

PIPE

SHUTOFF

VALVE COLD INLET

WATER LINE

FLUE PRODUCTS

DISCHARGE PIPE

TEMPERATURE-

PRESSURE RELIEF

VALVE

HOT OUTLET

TO HOUSE

DISCHARGE PIPE
(Do not cap or plug)
PROVIDE A 6″ AIR
GAP BETWEEN THE		GAS
END OF THE		SUPPLY
DISCHARGE PIPE
AND DRAIN

Installing the New Water Heater (cont’d)

Temperature-Pressure Relief Valve

WARNING

The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 lbs./sq. in.) and a discharge capacity not less than the water heater input rate as shown on the model rating plate. (Electric heaters - watts divided by 1000 x 3412) equal BTU/Hr. rate.

No valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge drain unless a 6″ air gap is provided. To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connected to a drain or other suitable means, the water flow may cause property damage.

The discharge pipe:

—Must not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restriction.

—Must not be plugged or blocked.

—Must be of material listed for hot water distribution. —Must be installed so as to allow complete drainage of both

the temperature-pressure relief valve, and the discharge pipe. —Must terminate at an adequate drain.

—Must not have any valve between the relief valve and tank.

WARNING

The temperature-pressure relief valve must be manually operated at least once a year. Caution should be taken to ensure that (1) no one is in front of or around the outlet of the tem- perature-pressure relief valve discharge line, and (2) the water manually discharged will not cause any bodily injury or property damage because the water may be extremely hot.

If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater, follow the draining instructions, and replace the temperature-pressure relief valve with a new one.

COLD

HOT

TEMPERATURE-

PRESSURE RELIEF

VALVE

TEMPERED

WATER

OUTLET DISCHARGE PIPE (Do not cap or plug)

PROVIDE A 6″ AIR

GAP BETWEEN THE

END OF THE

DISCHARGE PIPE

AND DRAIN

Relief Valve Opening

"THIS WATER HEATER IS PROVIDED WITH A COMBINATION TEMPERA- TURE-PRESSURE RELIEF VALVE. FOR SAFE OPERATION OF THE WATER HEATER, THE RELIEF VALVE(S) MUST NOT BE REMOVED FROM ITS DESIGNATED POINT OF INSTALLATION OR PLUGGED."

YOUR LOCAL JURISDICTIONAL AUTHORITY, WHILE MANDATING THE USE OF A TEMPERATURE-PRESSURE RELIEF VALVE COMPLYING WITH ANSI Z21.22 AND ASME, MAY REQUIRE A VALVE MODEL DIFFERENT FROM THE ONE FURNISHED WITH THE WATER HEATER.

COMPLIANCE WITH SUCH LOCAL REQUIREMENTS MUST BE SATISFIED BY THE INSTALLER OR END USER OF THE WATER HEATER WITH LOCALLY PRESCRIBED TEMPERATURE-PRESSURE RELIEF VALVE INSTALLED IN THE DESIGNATED OPENING IN THE WATER HEATER.

SEE MANUAL HEADING—"TEMPERATURE-PRESSURE RELIEF VALVES" FOR INSTALLATION AND MAINTENANCE OF RELIEF VALVE. DISCHARGE LINE AND OTHER SAFETY PRECAUTIONS.

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