Rheem AP13731 User Manual

Page 1

AP13731 (03/05)

FOR YOUR SAFETY!

— Do not store or use gasoline or other

flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. To do so may result in an 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. Follow the gas supplier’s instructions.

● If you cannot reach your gas supplier, call

the fire department.

● Do not return to your home until authorized

by the gas supplier or fire department.

— Improper installation, adjustment,

alteration, service or maintenance can cause property damage, personal injury, or death. Refer to this manual. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

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

The purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater; and two, to the owner–operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the water heater. This manual also includes a parts list.

It is imperative that all persons who are expected to install, operate or adjust this water heater read the instructions carefully so they may understand how to perform these operations. If you don’t understand these instructions or any terms within it, seek professional advice.

Any questions regarding the operation, maintenance, service or warranty of this water heater should be directed to the seller from whom it was purchased. If additional information is required, refer to the section on If You Need Service

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!

California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

Use & Care Manual

With Installation Instructions for the Installer

Printed in Japan

Tankless Water Heater

Warning: This water heater is not suitable

for use in manufactured (mobile) homes!

31-52756

Commercial Indoor and Outdoor Gas

Indoor Water Heater

Outdoor Water Heater

CERTIFIED

Page 2

Safety Information

Safety Precautions . . . . . . . 3–6

LP Gas Models . . . . . . . . . . . 5

Installation Instructions

Location of Indoor. . . . . . . . . 7

Location of Outdoor . . . . . . . . 8

Water Connections . . . . . 10-11

Gas Supply. . . . . . . . . . . . . . 12

High Altitude . . . . . . . . . . . . 12

Venting . . . . . . . . . . . . . . 13-18

Remote Control. . . . . . . . 19-20

Electrical Connection . . . . . . 21

Typical Installation Indoor. . 22

Typical Installation Outdoor 23

Pipe Insulation . . . . . . . . . . . 24

Installation Checklist . . . 24-25

Operating Instructions

Lighting Instructions . . . . . . 26

Water Temperature. . . . . 27, 28

Care and Cleaning

Maintenance. . . . . . . . . . . . . 29

Housekeeping . . . . . . . . 29, 30

Vent Inspection . . . . . . . . . . . 30

Burner Inspection . . . . . . . . 30

Extended Shut-Down . . . . . . 30

Draining . . . . . . . . . . . . . . . . 31

Freeze Protection . . . . . . . . . 31

Troubleshooting Tips

Before You Call

For Service . . . . . . . . . . . 32,33

Customer Service

Parts List . . . . . . . . . . . . . . . 34

If You Need Service. . . . . . . 36

Inside you will find many helpful hints on how to use and maintain your water heater properly. A little preventive care on your part can save you time and money over the life of your water heater.

You’ll find many answers to common problems in the Troubleshooting Guide. If you review the chart of Troubleshooting Tips first, you may not need to call for service.

READ THIS MANUAL

FOR YOUR RECORDS

Write the model and serial numbers here:

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service under the warranty.

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 obey all safety messages.

This is the safety alert symbol. Recognize this symbol as an indication of Important Safety Information! This symbol alerts you to potential hazards that can kill or hurt you and others.

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 THE SAFETY INFORMATION

Qualified Installers Only!

Dip Switch Adjustment. . . . 35

Page 3

Be sure to read and understand the entire Use and Care Manual before attempting to install or operate this water heater. It may save you time and money. Pay particular attention to the Safety Instructions. Failure to follow these warnings could result in serious bodily injury or death. Should you have problems understanding the instructions in this manual, or have any questions, STOP, and get help from a qualified service technician, or the local gas utility.

IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING.

Failure to install and properly vent the water heater to the outdoors as outlined in the Venting Section of the Installation Instructions in 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 outlet on the OUTDOOR water heater, or the vent terminal and the vent system on the INDOOR water heater for proper installation at initial startup; and at least annually thereafter. Refer to the Care and Cleaning section of this manual for more information regarding vent system inspection.

DANGER!

INSTALL AND PROPERLY VENT THE WATER HEATER…

Gasoline, as well as other flammable materials and liquids (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 labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in property damage, bodily injury or death.

WARNING!

DANGER

FLAMMABLES

Vapors from flammable liquids will explode and catch fire causing death or severe burns.

Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater.

Keep flammable products:

1. far away from heater,

2. in approved containers,

3. tightly closed and

4. out of children's reach.

Installation: Do not install water heater where flammable products will be stored or used unless the main burner flame is at least

Read and follow water heater warnings and instructions. If owners manual is missing, contact the retailer or manufacturer.

Flammable Vapors

Water he ater has a main burner flame. The main burner flame:

1. which c an come on at any time and

2. will ignite flammable vapo rs.

Vapo rs:

1. cannot be seen,

2. are heavier than air,

3. go a long way on the floo r and

4. can be carried from other r ooms to the main burner flame by air currents.

18" above the floor. This will reduce, but not eliminate, the risk of vapors being ignited by the main burner flame.

Page 4

Time/Temperature Relationship in Scalds

Water Temperature Time To Produce a Serious Burn

120°F (49°C) More than 5 minutes

125°F (52°C) 11/2 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 11/2 seconds

155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

The chart shown above may be used as a guide in determining the proper water temperature for your home.

DANGER: Households with small children, disabled, or elderly persons may require a 120°F (49°C) or lower temperature setting to prevent contact with “HOT” water.

Maximum water temperature occurs while burner is on. To find water temperature being delivered, turn on a hot water faucet and place a thermometer in the water stream and read the thermometer. (See page 27 & 28 for more details.)

The temperature of the water at the outlet of the water heater can be regulated by setting the temperature on Remote Control. The remote control was set at 100°F (38°C) before it was shipped from the factory.

The illustration to the bottom left illustrates the Remote Control and how to adjust the water temperature.

Notice: The factory setting allows operating temperatures between 100°F (38°C) and 120°F (49°C). Temperatures of up to 180°F (82°C) can be achieved with the MAIN (UMC-117) remote control and a dip switch adjustment. Only qualified service personnel should perform this adjustment. Only factory authorized remote control(s) should be used.

Notice: When this water heater is supplying general purpose hot water requirements for use by individuals, a thermostatically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.

DANGER!

WATER TEMPERATURE SETTING

Safety and energy conservation are factors to be considered when selecting the water temperature setting of a water heater’s remote control. Water temperatures above 125°F (52°C) can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below.

IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING.

* Temperatures above 120°F (49°C) can be achieved by adjusting the dip switch. See page 35 for dip switch adjustment.

Notice:

Display shows °F only.

DANGER

HOT

BURN

Water temperature over 125°F 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.

Higher (Hotter) Lower (Cooler)

100 102 104 106 108 110 112 114 116 118 120* 125 130 135 140 150 160 170 180 °F

38 39 40 41 42 43 44 46 47 48 49* 52 54 57 60 66 71 77 82 °C

PRIORITY

°F

POWER

ON/OFF

Page 5

Both LP and natural gas have an odorant added to aid in detecting a gas leak. Some people may not physically be able to smell or recognize this odorant. If you are unsure or unfamiliar with the smell of LP or natural gas, ask the gas supplier. Other conditions, such as “odorant fade”, which causes the odorant to diminish in intensity, can also hide or camouflage a gas leak.

DANGER!

NATURAL GAS AND LIQUEFIED PETROLEUM MODELS

● Water heaters utilizing LP gas are

different from natural gas models. A natural gas water heater will not function safely on LP gas and vice versa.

● No attempt should ever be made to

convert the water heater from natural gas to LP gas. To avoid possible equipment damage, personal injury or fire, do not connect the water heater to a fuel type not in accordance with the unit data plate; propane for propane units and natural gas for natural gas units. These units are not certified for any other fuel type.

● LP appliances should not be installed

below grade (for example, in a basement) if such installation is prohibited by federal, state and/or local laws, rules, regulations or customs.

● Propane or 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.

● Before attempting to light the water

heater, make sure to look and smell for gas leaks. Use a soapy solution to check all gas fittings and connections. Bubbling at a connection indicates a leak that must be corrected. When smelling to detect a gas leak, be sure to sniff near the floor also.

● Gas detectors are recommended in LP

and natural gas applications and their installation should be in accordance with the detector manufacturer’s recommendations and/or local laws, rules, regulations or customs.

● It is recommended that more than one

method, such as soapy solution, gas detectors, etc., be used to detect leaks in gas applications.

Notice: If a gas leak is present or suspected:

● Do not attempt to find the cause yourself.

● Do not

try to light any appliance.

● Do not

touch any electrical switch.

● Do not

use any phone in your building.

● Leave the building immediately and

make sure your family and pets leave also.

● Leave the doors open for ventilation and

contact the gas supplier, a qualified service agency or the fire department.

● Stay away from the building until the

service call has been made, the leak is corrected and a qualified agency has determined the area to be safe.

Page 6

Have the installer show you the location of the gas shut-off valve and how to shut it off if necessary. Turn off the manual shut-off valve if the water heater has been subjected to overheating, fire, flood, physical damage or if the gas supply fails to shut off.

● Read this manual entirely before

installing or operating the water heater.

● Use this appliance only for its intended

purpose as described in this Use and Care Manual.

● Be sure your appliance is properly

installed in accordance with local codes and the provided installation instructions.

● Do not attempt to repair or replace any

part of your water heater unless it is specifically recommended in this manual. All other servicing should be referred to a qualified technician.

SAFETY PRECAUTIONS

IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING.

WARNING!

For your safety, the information in this manual must be followed to minimize the risk of fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of life.

FOR INSTALLATIONS IN THE STATE OF CALIFORNIA

California Law requires that residential water heaters must be braced, anchored or strapped to resist falling or horizontal displacement due to earthquake motions. For residential water heaters up to 52 gallon capacity, a brochure with generic earthquake bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street, Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater dealer.

However, applicable local codes shall govern installation. For residential water heaters of a capacity greater than 52 gallons or tankless-style, consult the local building jurisdiction code for acceptable bracing procedures.

READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY.

SAVE THESE INSTRUCTIONS

Page 7

Installing the (INDOOR) water heater :

This water heater must be installed in accordance with these instructions, local codes, utility company requirements, and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association, 400 North Capitol Street Northwest, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as NFPA 54. In Canada, the latest edition of the CSA B149.1 Natural Gas and Propane Installation, and the Canadian Electrical Code, CSA C22.1 Part 1, in the absence of local codes.

Location of INDOOR Water Heater

The water heater should not be located in an area where leakage of the heat exchanger 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, adequately drained, must be installed under the water heater.

The pan must not restrict combustion air flow.

A gas fired water heater or any other appliance should not be installed in a space where liquids which give off flammable vapors are to be used or stored. Such liquids include gasoline, LP gas (butane or propane), paint or adhesives 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.

The water heater must be located so it is not subject to physical damage, for example, by moving vehicles, area flooding, etc.

If the water heater is installed in a garage, it should be installed so that the direct ignition system and main burner are no less than 18 inches (45 cm) above the garage floor.

Raising the gas fired water heater will reduce BUT NOT eliminate the possibility of lighting the vapor of any flammable liquids which may be improperly stored or accidentally spilled.

● The water heater should be installed as

close as practical to the vent termination to minimize vent length and the number of elbows required for venting.

● The water heater should be installed with

the proper venting materials and termination suitable for Category III venting.

● Failure to install and properly vent the

water heater to the outdoors as outlined in the Venting Section of this manual can result in unsafe operation.

● 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.

● Do not install the water heater in

bathrooms, bedrooms, any occupied rooms normally kept closed, or in outdoor areas.

● Do not install the water heater in small,

poorly ventilated rooms, or in air tight rooms with air-conditioning.

● Do not install water heater where subject

to vibrations.

● Do not install the water heater in

Recreational Vehicles, Mobile Homes, Boats and other Watercrafts.

● Do not install the water heater near vents

for heating or cooling. A minimum of 4 feet (1.2 m) should be maintained.

● Minimum clearance from combustible

and non-combustible construction is 1/2” (1.3 cm) sides, 0” rear (with support bracket); 12” (30 cm) from the bottom; 12” (30 cm) from the front of the water heater; and 12” (30 cm) from the top (24” (61 cm) from front and top is recommended for servicing purposes). Maintain a minimum clearance of 2” (5 cm) around the vent pipe to combustible or non-combustible construction. If the clearances stated on the Instruction/Warning Label, located on the front panel of the heater differ, install the water heater according to the clearances stated on the label.

WARNING: Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and materials. Combustible and/or flammable products and materials should never be stored in the vicinity of this or any gas appliance.

Minimum Clearance from

Combustible and

Non-Combustible

Construction.

WARNING: Follow vent manufacturers instructionwhile installing vent. If required, provide additional clearances from vent to combustibles per vent manufacturers instruction.

min. 1/2 "

(1.3 cm)

Top = 12"(30 cm) Vent = 2" Front = 12"(30 cm)

* (with support bracket)

min. 2"

(5 cm)

min. 2"

(5 cm)(5 cm)

min. 12" (24" (60 cm) minimum is recommended for service)

Back = 0" * Side = 1/2" Bottom = 12"

2" (5 cm) min

min. 1/2 "

(1.3 cm)

(30 cm)

(1.3 cm)

(30 cm)

3" (8 cm) min

2" (5 cm) min

Vent Pipe

Page 8

Installing the (OUTDOOR) water heater:

Location of the OUTDOOR water heater

This water heater is for OUTDOOR installation ONLY!

This water

heater is an outdoor model and must be mounted vertically. It must not be installed indoors or in a confined space.

The water heater should be installed close to the most frequently used outlet and its position chosen with safety and service in mind.

Make sure people (particular children, disabled, and elderly) will not touch the hot water outlet or the flue terminal. The flue terminal and air inlet must be clear of obstruction and shrubbery.

The water heater should not be located in an area where leakage of the heat exchanger or connections will result in damage to the area adjacent to it or to lower floors of the structure.

The water heater must be located so it is not subject to physical damage, for example, by moving vehicles, area flooding, etc.

● The water heater should be installed

vertically with the water, gas, and power connections on the underside pointing toward the ground.

● Failure to properly install the water

heater outdoors as outlined in this manual can result in unsafe operation.

● Hot and cold water lines should be

insulated to conserve water and energy.

● The water heater and water lines should

be protected from exposure to freezing temperatures.

● Do not install water heater where

subject to vibrations.

● Do not install the water heater in

Recreational Vehicles, Mobile Homes, Boats and other Watercrafts.

● Do not install the water heater near

vents for heating or cooling. A minimum of 4 feet should be maintained.

● Minimum clearance from combustible

and noncombustible construction is 1/2” (1.3 cm) sides, 0” rear (with support bracket); 12” (30 cm) from the bottom; 12” (30 cm) from the front of the water heater; and 12” (30 cm) from the top (24” (61 cm) from front and top is recommended for servicing purposes). If the clearances stated on the Instruction/Warning Label, located on the front panel of the heater differ, install the water heater according to the clearances stated on the label.

Minimum Clearance from

Combustible and

Non-Combustible

Construction.

min.

1/2 "

(1.3 cm)

Top = 12" (30 cm) Front = 12" (30 cm)

Back = 0" (with support bracket) Side = 1/2" (1.3 cm) Bottom = 12" (30 cm)

(1.3 cm)

min. 12" (30 cm) (24" (61 cm) minimum is recommended for service)

min. 1/2 "

Page 9

Installing the water heater:

Proper operation of the water heater requires air for combustion and ventilation. Provisions for combustion and ventilation air must comply with referenced codes and standards.

Combustion and Ventilation Air (Indoor Water Heater Only)

NOTICE: If the water heater is installed in an unconfined space within a building of conventional frame, masonry or metal construction, infiltration air is normally adequate for proper combustion and ventilation. If the water heater is installed in a confined space, provisions for combustion and ventilation air must be made.

A confined space is one having a volume of less than 50 cubic feet (1.4 cubic meters) per 1000 Btuh of the aggregate input of all appliances within that space.

The air must be supplied through two permanent openings of equal area. One is to be located within 12” (30 cm) above the floor and the other is to be located within 12” (30 cm) below the ceiling.

The minimum net free area of each opening must not be less than one square inch (6.5 sq cm) per 1000 Btuh of the total input rating of all the appliances in the enclosure (but not less than 100 square inches (650 cm2),) if each opening communicates with other unconfined areas inside the building.

Buildings of unusually tight construction shall have the combustion and ventilation air supplied from outdoors, or a freely

ventilated attic or crawl space.

If air is supplied from outdoors, directly or through vertical ducts, there must be two openings located as specified above and each must have a minimum net free area of not less than one square inch (6.5 sq cm) per 4000 Btuh of the total input rating of all the appliances in the enclosure.

If horizontal ducts are used to communicate with the outdoors, each opening must have a minimum net free area of not less than one square inch (6.5 sq cm) per 2000 Btuh of the total input rating of all the appliances in the enclosure. If ducts are used, the minimum dimensions of rectangular air ducts shall not be less than 3” (7.6 cm).

NOTICE: If the duct openings which supply combustion and ventilation air are to be covered with a protective screen or grill, the net free area (openings in the material) of the covering material must be used in determining the size of the openings. Protective screening for the openings MUST NOT be smaller than 1/4” (0.64 cm) mesh to prevent clogging by lint or other debris.

Corrosive Atmospheres

The air in beauty shops, dry cleaning establishments, photo processing labs, and storage areas for liquid and powdered bleaches or swimming pool chemicals often contain such halogenated hydrocarbons.

An air supply containing halogenated hydrocarbons may be safe to breathe, but when it passes through a gas flame corrosive elements are released that will shorten the life of any gas burning appliance.

Propellants from common spray cans or gas leaks from A/C and refrigeration equipment are highly corrosive after passing through a flame.

The water heater warranty is voided when failure of the heater is due to operation in a corrosive atmosphere.

NOTICE: The water heater should not be installed near an air supply containing halogenated hydrocarbons.

Inspect Shipment

Inspect the water heater for possible damage. Check the markings on the rating plate of the water heater to be certain the type of gas supplied corresponds to the water heater requirements. Verify all included parts are present (see below).

DANGER: OUTDOOR water heaters must not be installed indoors or in a confined space. Install outdoor water heaters outdoors only.

Air Openings

Min. 200 Sq. In.

)

(1290 cm

Min. 3" (7.6 cm)

PRIORITY

°F

POWER

ON/OFF

Wood Screw x 5pcs.

foetacifitreC

detimiL

ytnarraW

AICREMMOC

SRETAEHRETAW

SSELKNATLAICREMMOC

SRETAEHRETAWSAG

DNAREGNAHCXETAEHRAEY3AHTIW

YTNARRAWDETIMILSTRAPRAEY1

)50/30(1-78431PA

Warranty

Remote Control

Assembly Kit

Washer x 4 pcs.

Use & Care Manual

With Installation Instructions for the Installer

Residential Gas

Tankless

Water Heaters

Warning: This waterheateris not suitable for

use in manufactured (mobile) homes!

The purpose of this manual is twofold: one, to provide the installerwith the basic directions and recommendations forthe properinstallation and adjustment of the waterheater; and two, to the owner–operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the waterheater. This manual also includes a parts list.

It is imperative that all persons who are expected to install, operate or adjust this waterheaterread the instructions carefully so they may understand how to perform these operations. If you don’t understand these instructions orany terms within it, seek professional advice.

Any questions regarding the operation, maintenance, service or warranty of this waterheatershould be directed to the sellerfrom whom it was purchased. If additional information is required, referto the section on How to Obtain Service Assistance.

Do not destroy this manual. Please read carefully and keep in a safe place forfuture reference.

Recognize this symbol as an indication of Important Safety

Information!

California Proposition 65 Warning:This product contains

chemicals known to the State of California to cause cancer, birth defects orotherreproductive harm.

WARNING: If the information in these instructions is not followed exactly,

a fire orexplosion may result causing property damage, personal injury ordeath.

FOR YOUR SAFETY!

● If you cannot reach yourgas supplier, call

—Do not store or use gasoline or other

the fire department. flammable vapors or liquids or other combustible materials in the vicinity of this or

● Do not return to yourhome until authorized

any otherappliance. To do so may result in an

by the gas supplierorfire department. explosion orfire.

—Improperinstallation, adjustment,

alteration, service ormaintenance can cause

—WHATTO DO IFYOU SMELL GAS

property damage, personal injury, ordeath .

●Do not try to light any appliance.

Referto this manual. Installation and service

● Do not touch any electrical switch; do not

must be performed by a qualified installer,

use any phone in yourbuilding.

service agency orthe gas supplier.

● Immediately call yourgas supplierfrom a

neighbor’s phone. Follow the gas supplier’s instructions.

Printed in USA

Tankless Unit

Use & Care Manual

Manual Appliance

Gas Shut-off Valve

Page 10

Water Supply Connections

IMPORTANT: Do not apply heat to the HOT or COLD water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connections on heater. Any heat applied to the water supply fittings will permanently damage the internal components of the water heater.

Mounting the Water Heater

Make sure the location of the appliance allows for easy access and operation.

Wall studs should be utilized when mounting the water heater to the wall. Alternately, a suitable piece of wood may be placed inside or outside of the wall to span the distance between the wall studs. Fasten the water heater mounting brackets to the wood.

In case of dry wall or concrete wall use dry wall anchors or lag bolts.

The water heater requires 120VAC/60Hz. Have a receptacle with ground terminal near the water heater. The length of the power supply cord is 10 feet (3 m), (Indoor water heater only.)

Install a wood screw for the upper bracket with a clearance of 1/8” (.32 cm) between the wall and the screw head. Hang the center of the upper bracket on the screw.

Using a wood screw and a washer, affix the lower bracket to the wall (Left and Right). Repeat to affix the top bracket.

The brackets can be adjusted to change the distance between the back of the appliance and the wall within the range of 3/8” (.95 cm) to 1½” (3.8 cm).

Loosen the adjustment screws of both the top and the bottom brackets to adjust the distance. (See diagram below)

Plumbing should be carried out by a qualified plumber in accordance with local codes.

Use approved plumbing materials only.

The diameter of the pipe lines should be a minimum of 3/4”.

To conserve energy and to prevent freezing, insulate both cold and hot water supply lines. DO NOT cover the drain or pressure relief valve.

To ensure proper operation of the water heater, the following water pressure guidelines should be followed:

● Operation of the water heater requires

the minimum water pressure of 14 psi (97 kPa) and a minimum water flow rate of 0.66 gpm (2.5 lpm).

● A water pressure of 40 psi (276 kPa) is

required to achieve maximum flow rate.

● To maintain proper performance, ensure

sufficient water supply pressure. The Required Water Pressure = Min. Operating Water Pressure (14 psi) (97 kPa) + Pipe Pressure Loss + Faucet and Shower Pressure Loss + Safety Margin (more than 5 psi) (34 kPa).

● To supply hot water to upper floors,

additional water pressure (0.44 psi/ft) (10 kPa/m) must be ensured. The measurement should be calculated by the distance between the water inlet of the water heater (ground level) to the hot water faucet (upper floor level).

● Well water systems should be set to

ensure a minimum system pressure of 40 psi (276 kPa).

● When the water is supplied from a

water supply tank, the height of the tank and the diameter of the pipes and their relation to water pressure, should be taken into consideration. Gravity

water pressure is not recommended.

Notice: If the water flow resistance of a

shower head is too high, the burner in the water heater will fail to ignite. Keep the shower head clean from debris that could cause additional pressure drop.

Notice: If using mixing valves on the outlet, choose one which prevents cold water pressure from overcoming hot water line pressure.

Notice: If multiple water heaters are installed in a manifold system, the water piping must be in “Parallel”. A water pressure of 40 psi (276 kPa) is recommended for each water heater for proper operation of the water heaters.

CAUTION: This water heater must only be used with the following water supply system conditions:

● With clean, potable water

free of corrosive chemicals, sand, dirt, or other contaminates.

● With inlet water

temperatures above 32°F (0°C), but not exceeding 140°F (60°C).

● Free of lime and scale

deposits.

● DO NOT reverse the hot

and cold water connections. The water heater will not operate.

CAUTION: Reinforcement of the wall is required in case the wall is not strong enough to hold the appliance.

Upper Bracket

Washer

Wood Screw

Washer

Wood Screw

Lower Bracket

1/8" (.32 cm)

Clearance

Wood Screw

Washer

TOP

Adjustment Screws

Bracket

Adjustment Screws

BOTTOM

Page 11

Installing the water heater:

Relief Valve

A new pressure relief valve, complying with the Standard for Relief Valves and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22/ CSA 4.4, must be installed at the hot water outlet connection of the water heater at the time of installation. Local codes shall govern the installation of relief valves.

For safe operation of the water heater, be sure that:

● The pressure rating of the relief valve

must not exceed 150 psi (1034 kPa), the maximum working pressure of the water heater as marked on the rating plate.

● The BTUH rating of the relief valve

must equal or exceed the BTUH input of the water heater as marked on its rating plate.

● No valve of any type should be

installed between the relief valve and the water heater

● Discharge from the relief valve should

be piped to a suitable drain to eliminate potential water damage. Piping used should be of a type approved for the distribution of hot water.

● Hot and cold water lines should be

insulated up to the water heater. Refer to page 24 for details.

● The discharge line must be NO

SMALLER than the outlet of the relief valve and must pitch downward to allow complete drainage (by gravity) of the relief valve and discharge line.

● The end of the discharge line should not

be threaded or concealed and should be protected from freezing. No valve of any type, restriction or reducer coupling should be installed in the discharge line.

Notice: Local codes govern the installation of relief valves. If local codes require that a temperature and pressure relief valve should be installed the manufacturer recommends a type 40XL Watts T&P relief valve or an equivalent model be used.

Notice: Manual operation of relief valves should be performed at least once a year. Turn off the electrical power and gas shutoff valve. Lift and release lever on the relief valve and check the manual operation of the relief valve. You should take precaution to avoid contact with the hot water coming out of the relief valve and to prevent water damage.

Notice: If the relief valve on the system discharges periodically, a problem exists and service to the water system is required.

Water Supply Connections Continued

Install a shutoff valve near the inlet of the water heater for service and draining purposes.

It is not recommended to use pipes with smaller diameters than the water supply connection of the water heater.

Before connecting the water supply pipe to the water heater, open the shutoff valve and clean out sand, debris, air, caulking material, etc. inside the pipe. Connect to the water inlet, then check water flow. Close the shutoff valve and clean the water filter.

Be sure to connect the water inlet and the hot water outlet as shown on the water heater. If reversed, the water heater will not function.

Installation of unions or flexible copper connections are recommended on the HOT and COLD water lines, so that the water heater may disconnect easily for servicing if necessary.

Install a Check Valve between the water heater and the water shutoff valve. (See illustration the top left).

The following should be addressed in regards to the HOT WATER OUTLET:

● Connections between the water heater

and point(s) of use should be as short and direct as possible.

● DO NOT use lead or plastic pipe.

● To conserve energy and minimize heat

loss, insulation of hot water piping is recommended. (See Hot and Cold Pipe Insulation Installation on page 24).

Notice: The flow rate of hot water may vary when more than two faucets (appliances, fixtures, etc.) are being used simultaneously.

Notice: The pipes MUST be completely drainable. If the hot water faucets are located at a point higher than the water heater, place a drain valve at the lowest point (see diagram to the left).

Union

Pressure Relief Valve

Water

Shutoff

Valve

Cold

Water

Supply

Inlet

Hot Water

Supply

Outlet

Relief Valve Discharge Line

Notice: The above illustrates a pressure only relief valve. If local codes require a combination temperature and pressure relief valve be installed, an extension piece may be needed. (Refer to page 22 or 23 for example of extension piece for T&P relief valve installation.) The T&P relief valve probe should not be directly in the flow path of the water.

Notice: Use only teflon tape on cold and hot water connections and lines.

Water Filter

Clean the Water Filter

Water Inlet

Check Valve

Nipple

Air Relief Va lv e

Drain Valve

Wat er

Hot

Water

Tap

Page 12

WARNING: Do not attempt to convert this water heater for use with a different type of gas other than the type

shown on the rating plate. Such conversion could result in hazardous operating conditions.

Leak Testing

The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation.

Turn on the gas shut-off valve(s) to the water heater.

Use a soapy water solution to test for leaks at all connections and fittings. Bubbles indicate a gas leak that must be corrected.

The factory connections should also be leak tested after the water heater is placed in operation.

High Altitude

Input rating of this water heater is based on sea level operation. At higher elevations the actual input rate may be lower than the value listed on the rating label. This water heater can be installed at elevations up to 3,280 feet (1000 m)without any change or modification.

NOTICE: Select models may be available preset for operations at elevations up to 6,560 feet (2000 m).

NOTICE: For installations above 3,280 feet (1000 m) elevation, the connector on the PC board must be replaced. Do not install this water heater at elevations above 3,280 feet (1000 m) without installing the proper high altitude connector. Please contact your local distributor, dealer, or Rheem for replacement connector.

Pressure Testing the Gas Supply System

The water heater and its manual gas shutoff valve must be disconnected

from the gas supply piping system during any pressure testing of the system at pressures in excess of 1/2 psi (14” w.c.) (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” w.c.) (3.5 kPa).

Gas Supply

The supplied Manual Gas Appliance Shutoff Valve must be installed at the gas connection of the water heater at the time of installation (see diagram to the left).

The branch gas supply line to the water heater should be a minimum of 3/4” black steel pipe or other approved gas piping material.

A ground joint union or ANSI design certified semi-rigid or flexible gas appliance connector should be installed in the gas line close to the water heater. The National Fuel Gas Code (NFGC) ANSI Z223.1 and CAN B149 code mandates a manual gas shut-off valve: See NFGC & B149 for complete instructions.

If flexible connectors are used, the maximum length shall not exceed 36” (91 cm).

If lever type gas shut offs are used, they shall be T-Handle type.

Compound used on the threaded joints of the gas piping must be of the type resistant to the action of LP gas. Use compound sparingly on male threads only.

A sediment trap should be installed at the bottom of the gas line.

Do not use excessive force (over 31.5 ft lbs.) (42.7 Nm) in tightening the pipe, particularly if teflon pipe compound is used, as the unit may be damaged.

The inlet gas pressure to the water heater must not exceed 10.5” w.c. (2.6 kPa) for natural or 14” w.c. (3.5 kPa) for LP gas. For purposes of input adjustment, the minimum inlet gas pressure (with main burner on) is shown on the water heater rating plate. If high or low gas pressures are present, contact your gas supplier for correction.

NOTICE:

To ensure proper operation of the heater the gas pipe and gas meter must be sized correctly.

Gas piping shall be in accordance with local, utility company requirement and/or in the absence of local codes, use the latest edition of the National Fuel Gas Code. In Canada the latest edition of CSA B149.1 Natural Gas and Propane installation code.

WARNING: Never use an open flame to test for gas leaks, as property damage, personal injury, or death could result.

WARNING: Install a gas pressure regulator, in the gas supply line, which does not exceed the maximum supply pressure.

DO NOT use an industrial type gas regulator.

Manual Gas

Appliance

Shut-off

(Supplied)

Union

Sediment

Trap

Cap

Manual

Gas

Supply

Line

Shut-off

Va lv e

Page 13

Installing the water heater:

The water heater must be installed with a RTG20002B vent adapter or a UL approved Category III Stainless Steel equivalent.

Venting

The installation of venting must comply with national codes, local codes, and the vent manufacturer’s instructions.

The water heater must be vented to the outdoors as described in these instructions. DO NOT connect this water heater to a Chimney. It must be vented separately from all other appliances.

All vent components (adapters, pipe, elbows, terminals, etc.) should be UL1738 Certified Stainless Steel Venting Material (e.g. AL29-4C).

The specified vent termination must be used. The termination should be a 90° elbow type with screen. (Refer to page 17)

Use a vent pipe with an anti-disconnection structure.

The use of a High Temperature Silicone (500°F) (260°C) may be required to seal vent connections. To prevent accidental gas exhaust leakage, apply a 1/4” (6 mm) wide bead approximately 1/4” (6 mm) from the end and another bead against the joint side of the stop bead.

Follow vent manufacturer’s installation instructions.

The unit can be vented either horizontally or vertically.

Vent pipe runs must be adequately supported along both horizontal and vertical runs.

The maximum recommended unsupported span should be no more than five (5) feet (1.5 m) Support isolation hanging bands should be used. DO NOT use wire. (See

diagram below).

Notes on pr

e-existing vent:

If the water heater is being installed as a replacement for an existing water heater, a thorough inspection of the existing venting system must be performed prior to any installation work. Verify that the correct materials, vent lengths and terminal locations as detailed in this Use and Care manual have been met. Carefully inspect the entire venting system for any signs of cracks or fractures, particularly at the joints between elbows or other fittings and the straight runs of vent pipe. Check the system for signs of sagging or other stresses in the joints as a result of misalignment of any components in the system. If any of these conditions are found, they must be corrected in accordance with the venting instructions in this manual before completing the installation and putting the water heater into service.

DANGER: Failure to install the vent adapter and properly vent the water heater to the outdoors as outlined in the Venting section of this manual will result in unsafe operation of the water heater causing death, serious injury, explosion, or fire. To avoid the risk of fire, explosion, or asphyxiation from carbon monoxide, NEVER operate the water heater unless it is properly vented and has adequate air supply for proper operation as outlined in the Venting section of this manual.

WARNING: Use UL approved Category III Stainless Steel vent material only. No other vent material is permitted.

WARNING: Refer to page 7 for clearances to combustible material.

Venting Lengths

MAXIMUM VENT LENGTH - The

system will not operate if there is excessive restriction (pressure drop) in the venting system. A maximum of 47 feet 6 inches (14.4 m)

of vent pipe may be used provided there is only one 90° elbow in the system. If additional elbows are required: two elbows can be used with 42 feet 6 inches

(13 m)

, and three elbows can be used with 37 feet 6 inches

(11.4 m)

of vent pipe.

A 90° elbow is equivalent to 5 feet

(1.5 m) to straight pipe. A 45° elbow is equivalent to 2 feet 6 inches

(76 cm)

of straight pipe.

The termination elbow does not count as an elbow when determining total vent lengths.

The vent can be installed with a slight downward slope of 1/4” per foot of

horizontal run toward the vent terminal (see diagram below). This ensures that any condensate formed during operation of the unit is evacuated from the appliance.

A 1/4” per foot upward slope is acceptable when it is not possible to vent with a downward slope, however, a UL approved Category III Stainless Steel condensate trap MUST be installed at the beginning of the horizontal run (See page 17 “Typical Horizontal Termination w/ 1/4” per foot UPWARD Slope” or page 18, “Standard Vertical Vent Termination” for examples).

MINIMUM VENT LENGTH - The venting may be as short as 12” (30 cm), provided one vent termination is installed to the outdoors through a sidewall, one 90° elbow is included in the installation, and the wall thimble is installed.

Notice: Make sure that the seam of the vent pipe in horizontal runs is toward the top of the installation (see illustration to the far left).

Number of

90° elbows

(bends)

Maximum

Length of

Straight Pipe

47’ 6”

(14.4 m)

42’ 6”

(13 m)

37’ 6”

(11.4 m)

NO! YES!

Vent Seam

Max. 3 feet (91 cm)

1/4" per foot downward slope.

Min. 3"

(8 cm)

Page 14

Venting Through Closed Spaces

If the vent piping passes through a closed space, a minimum clearance of 8” (20 cm) when installed horizontally, 6”

(15 cm) when installed vertically should be maintained between the vent pipe and combustibles and noncombustibles. Be sure to follow local codes.

For maintenance and inspection purposes, the following access panels are required.

● Two (2) inspection access panels large enough to allow

access for venting inspection. One (1) of these access panels should be close to where the vent pipe enters the ceiling. The other access panel should be near the vent termination.

● A ventilation access panel with a 16 in2(103 cm2) opening

should be provided every 10 ft (3 m).

1/4” per foot

Vent Adapter

A UL 1738 approved stainless steel vent adapter is required for vent connection.

Read the following instructions before installation.

● Test fit the adapter over the water

heater collar before proceeding. Adjust clamp as needed.

● With an alcohol wipe, clean inside

surface "A" of adapter and outside surface of "B" of heater collar.

● Apply 1/4" (6 mm) wide bead of high

temperature silicone (500°F) (260°C) around outside of heater collar "B".

● Slide adapter end "A" down over heater

collar "B" as far as it will go.

● Tighten the clamp around the collar.

● Inspect the inside of the adapter to

verify that the collar and adapter are sealed. If more sealant is required, apply sealant to a flat tool, then spread around the collar edge on inside

adapter.

● Ensure that the clamp does not interfere

with the damper shaft.

NOTICE: Follow the vent adapter manufacturer’s instructions

Draining the Condensate

In order to prevent condensate from draining back into the water heater, a condensate trap and drain must be installed in a horizontal vent section as close as practical to the water heater vent connection, uless the water heater is vented horizontally with a 1/4” per foot DOWNWARD slope towards the vent terminal as shown below.

Condensate is known to be acidic; refer to local, state (provincial) or federal codes for proper handling and discharge methods.

downward slope

Exhaust

High Temp. Sealant

Water Heater

Inspection

Access Panel #1

Flow

Wall Thimble

Vent Pipe

Ceiling

Board

Inspection

Access Panel#2

Vent Adapter RTG20002B

Clamp

Collar

1/4” per foot downward slope

3” (8 cm) Clearance

3’

(91 cm)

Max

Ve nt Adapter

Support Hanger

Page 15

The following information should be used for determining the proper location of the vent terminal for indoor and outdoor tankless water heaters.

Canadian Installations

US Installations

Canadian Installations

US Installations

VENT TERMINAL

AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

1 In accordance with current CAN/CGA-B149 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.

* If clearances are not specified then follow local installation codes and the requirement of the gas supplier.

Installing the water heater.

Horizontal Vent Terminal Location

H = Clearance to each side of center line

extended meter/regulator assembly. above

3 feet (91 cm) within a height 15 feet (4.57 m) above the meter/regulator assembly.

I = Clearance to service regulator vent

outlet.

3 feet (91 cm)

J = Clearance to nonmechanical air

supply inlet to the combustion air inlet to any building or other appliance.

6 inches (15 cm) for appliances < 10,000 Btuh (3 kW), 12 inches (30 cm) for appliances > 10,000 Btuh (30 cm) for appliances > 10,000 Btuh (30kW), 36 inches (91 cm) for appliances > 100,000 Btuh (30kW).

4 feet (1.2 m) below or to side of opening; 1 foot (300 mm) above opening.

K = Clearance to mechanical air supply

inlet.

6 feet (1.83 m) 3 feet (91 cm) above if within 10 feet (3

m) horizontally.

L = Clearance above paved side walk or

paved driveway located on public

property.

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

M = Clearance under veranda, porch,

deck or balcony.

Not Allowed Not Allowed

A= Clearance above grade, veranda,

porch, deck or balcony.

12 inches (30 cm) above anticipated

snow level.

12 inches (30 cm) above anticipated

snow level.

B= Clearance to window or door that

may be opened.

4 feet (1.2 m) below or to side of opening; 1 foot (300 mm) above opening.

C= Clearance to permanently closed

window.

* *

D= Vertical Clearance to ventilated soffit

located above the terminal within a horizontal distance of 2 feet (61 cm) from the center line of the terminal.

4 feet (1.2 m) 4 feet (1.2 m)

E= Clearance to unventilated soffit. * *

F= Clearance to outside corner. * *

G= Clearance to inside corner. * *

M = Clearance under veranda, porch,

deck or balcony.

3 feet (91 cm) 3 feet (91 cm)

FIXED

RAB

FIXE

CLO

Page 16

Installing the water heater:

Additional Considerations

Do Not install vent terminal under any patio or deck.

To help prevent moisture from freezing on walls and under eaves, do not locate vent terminal on the side of a building with prevailing winter winds.

To help prevent water lines from freezing do not locate vent terminal on the side of a building with prevailing winter winds.

Do Not terminate vent directly on brick or masonry surfaces. A rust-resistant sheet metal backing plate (2 x 2 feet) (60 x 60 cm) is recommended behind vent. (See illustration.)

Do Not locate vent terminal too close to shrubbery, as flue gasses may damage them.

Caulk all cracks, seams and joints within six (6) feet (1.8 m) of vent terminal.

Caulk around thimble face plate for weather tight seal.

All painted surfaces should be primed to lessen the chance of physical damage. Painted surfaces will require maintenance.

Insulate vent pipe of indoor water heaters exposed to cold conditions (attics, crawl spaces, etc.) with inflammable material to help prevent moisture from accumulating in vent pipe.

Do Not extend exposed vent pipe of indoor water heaters outside of building.

Guard vent against accidental contact with people and pets.

WARNING: 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

Outdoor Water Heater

Indoor Water Heater

Inside Corner

Caulk

6’ (1.8 m)

Caulk Zone

If soffit vent is too close, block off and install new vent at another location.

Caulk

Rising moisture will collect under eaves.

6’

4’

2 ft. sq. (60 x 60 cm) sheet metal plate on brick or masonary surface, recommended.

(1.8 m)

6’ (1.8 m) Caulk

zone or to edge of window

etc.,starting within 6’ (1.8 m).

RTV silicone caulk

(1.2 m)

Caulk

If soffit vent is too close, block off and install new vent at another location

Inside corner

6' (1.8 m) caulk

zone

Caulk

(1.2 m)

Rising moisture will collect under eaves

(1.8 m)

6' (1.8 m) caulk zone or to edge of window etc., starting within 6' (1.8 m)

Caulk

Page 17

Vent Horizontal Wall Thimble Installation

An approved 4 inch (10 cm) Vent Horizontal Wall Thimble must be used.

The Wall Thimble requires mechanical support from the wall sufficient to support any incidental loads on the system. If the wall is not sufficient enough to support the Wall Thimble, then appropriate additional framing and/or blocking is required.

INSTALLATION PROCEDURE:

Prepare an opening for the Wall Thimble in the wall. The opening must be 6-1/2 inches (16 cm) in diameter for a 4 inch (10 cm) vent system.

If there are not sufficient support members to secure the Wall Thimble or if there is a semirigid foam insulation layer under the sheathing, appropriate fasteners must be used to secure the Wall Thimble to the support members.

The Wall Thimble is designed to adapt to any wall thickness from 3-1/2” (9 cm) to 6” (15 cm) thick. If the wall is thicker than 6” (15 cm) the Wall Thimble may be extended using a piece of 6” (15 cm) diameter snaplock or welded seam galvanized pipe up to 6” (15 cm) long.

Select the larger diameter half of the Wall Thimble for the outside of the wall.

● Apply a continuous bead of high

quality silicone or silicone/latex caulk on the inside of the outer flange. This will be the only weather seal to keep moisture outside the building. Ensure a sufficient seal is made.

● Position this portion of the Wall

Thimble into the prepared hole from the outside. Secure the assembly into the prepared opening using fasteners as indicated by sheathing or structural members, sealing the screw heads with

more caulking.

Use 4 hollow wall anchors, at least 1/8” (.32 cm) in diameter and of appropriate length for the thickness of the sheathing, if sheathing is particle board or other composite material. Use 4 #10x1-1/4” wood screws for plywood, solid wood sheathing or members. Use suitable masonry anchors when passing through solid masonry walls. Reinstall the decorative sheathing around the Wall Thimble. This assembly may be painted to match the exterior decor.

● Attach a screened 4 inch (10 cm)

termination fitting to the female end of a vent section or slip connector. Use the method described in the Venting installation instructions (page 13). Slide the vent in through the outside of the Thimble and seal the annular space with a thick bead of caulk.

● Slide the interior portion of the Thimble

into the inside hole. Be certain the interior and exterior Thimble halves overlap at least 1” (2.5 cm). If insufficient overlap exists, extend the interior portion with single wall galvanized pipe.

● Secure the Wall Thimble to the interior

sheathing using suitable fasteners.

● Secure the vent section or slip

connector that protrudes through the Wall Thimble to the rest of the vent system as described in the Venting installation instructions (page 13).

Inner Thimble

Side View

WARNING: Use UL approved Category III vent material only. No other vent material is permitted.

CAUTION: Follow the vent manufacturers installation instructions as design might vary from manufacturer to manufacturer.

Typical Horizontal Termination

w/ ¼” per foot DOWNWARD Slope

Typical Horizontal Termination

w/ ¼” per foot UPWARD Slope

Section

Inner Wall

Inner Thimble Section

90° Elbow

Mounting

Brackets

Wat er

Heater

Vent Pipe

Outer Wal l

Outside Wall

weather seal

1/4” per foot downward slope

3” (8 cm) Clearance

Outer Thimble

Section

Outer Thimble

Section

90° terminatio

with screen

Caulk for

1/4” per foot upward slope

3” (8 cm) Clearance

3’

(91 cm)

Max

Vent Adapter

Support Hanger

3’

(91 cm)

Max

Vent Adapter

Condensate Trap

Support Hanger

To Drain. Dispose of

condensate in accordance

to local codes

Page 18

Installing the water heater.

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 water heater vent collar outlet. Support vertical or horizontal runs as previously mentioned. If required, use silicone sealant at the point the vent connector joins the water heater.

Install adequate flashing where the vent pipe passes through the roof. Determine the vent terminal height and install the vent pipe accordingly. Refer to the illustration above for proper vent terminal height. Connect vent elbow on to vertical pipe through roof. Connect short piece of vent pipe (approximately 6" long (15 cm)) to elbow, and the terminal elbow with the protective screen.

Standard Vertical Vent Termination

Alternate

Vertical Vent Termination with Rain Cap

Vertical Vent Termination Location

The location of the vent terminal depends on the following minimum clearances and considerations (see illustration):

Minimum twelve (12) inches

(30 cm)

above roof.

Minimum twelve (12) inches

(30 cm)

above

anticipated snow level.

Maximum twenty-four (24) inches

(60 cm)

above

roof level without additional support for vent.

Four (4) feet

(1 m)

from any gable, dormer or other roof structure with building interior access (i.e., vent, window, etc.).

Ten (10) feet

(3 m)

from any forced air inlet to the building. Any fresh or make-up air inlet such as a dryer or furnace area is considered to be a forced air inlet.

Min. 12"

(30 cm)

Above Roof

Min. 12"

(30 cm)

Above Anticipated Snow Level.

Max. 24"

(60 cm)

Above Roof (Without Additional Support)

Vent Pipe Through Roof

Elbow

Termination Elbow w/ Protective Screen

Small (6” min)

(15 cm)

section of vent

Chase Requires 6” (15 cm) Clearance to Combustibles

1/4” per foot upward slope

3” (8 cm) Clearance

3’

(91 cm)

Max

Roof Jack

Vent Adapter

Storm Collar

Adjustable Roof Flashing

Support Clamp

Support

Condensate

Hanger

Trap

To Drain. Dispose of

condensate in accordance

to local codes

Firestop

Storm Collar

Roof Jack

Support Clamp

Chase Requires 6” (15 cm) Clearance to Combustibles

1/4” per foot upward slope

3” (8 cm) Clearance

3’

(91 cm)

Max

Condensate Trap

To Drain. Dispose of

condensate in accordance

Vent Adapter

to local codes

Rain Cap

Adjustable Roof Flashing

Firestop

Support Hanger

Page 19

Remote Control Installation

One (1) remote control is provided with the water heater.

The following are considerations for determining the location of the remote control(s):

●

DO NOT install any remote control outdoors or areas were it can come in contact with water.

●

Place remote control out of children’s reach.

●

The remote control can be installed in convenient locations such as the kitchen, laundry room, utility room, or directly beside the indoor water heater.

●

Avoid areas where the remote control may be exposed to heat, e.g. stove ranges or heaters.

●

Avoid areas where the remote control may be subjected to oil and/or steam from cooking.

●

Avoid areas where chemical agents (such as thinner, benzine and alkaline) are used.

●

Avoid areas of direct sunlight.

●

The MAXIMUM distance between the water heater and the remote control installation location is limited to 195 feet (59 m) of wire.

NOTICE: Only main remote control (UMC-117) and manifolding control can be connected to the water heater.

No other manufacturer’s controls are suitable for use with this water heater.

DO NOT attempt to disassemble the remote control.

WARNING: Field wiring connections and electrical grounding must comply with local codes, or in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA 70, or in Canada, Canadian Electrical Code, CSA C22.1 Part 1.

Remote Control

Model Number

Remote Control

Description

Temperature

Set Point Range

Availability

UMC-117 MAIN

100°F - 120°F (38°C)-(49°C)

Factory Default

125°F - 180°F (52°C)-(82°C)

With Dip Switch

Adjustment

NOTICE: The provided remote control will allow a maximum temperature setting of 120°F (49°C). Temperatures of up to 180°F (82°C) can be achieved with dip switch adjustment. Only qualified service personnel should perform this adjustment.

NOTICE:

Manifolding Applications: Certain Commercial installations may require more than one water heater piped together in a manifold to supply enough capacity for high temperature and/or water flow applications. Special manifolding control kits are available for operating multiple heaters together. Contact your dealer for details.

MAIN

Control

Base Plate

PRIORITY

°F

POWER

ON/OFF

Mounting Screw x 2

Control screw

Page 20

Installing the Main Remote Control.

NOTICE: Extension cable can be any Type-T 18 AWG wire similar to a thermostat wire and need not be polarity sensitive.

Do Not apply sealant to the remote control cable.

It is not recommended to have wiring exposed.

Remote Control Installation

Connecting the MAIN (UMC-117 ) remote control to the water heater:

●

Drill a 1” (2.5 cm) to 1.5” (4 cm) hole at the proposed control location.

●

Install the extension cable between the location of the remote control and the water heater.

●

Remove the base plate from the control.

●

Draw the remote control extension cable through the central in the base plate.

●

Fix the base plate to the wall using suitable screws and wall anchors. Ensure the projections on the base plate are pointing upwards.

●

Connect the remote control cables to the extension cable from the water heater.

●

Place the remote control over the base plate. Ensure the projections in the base plate fit into the housings in the remote control.

●

Fix the control to the base plate at the bottom of the remote control using the screw provided.

●

Proceed to “Connecting the remote control to the water heater”, to complete installation.

Connecting the remote control to the water heater:

●

Ensure that the power to the water heater has been disconnected.

●

Remove the front cover of the water heater.

●

Insert the remote control extension cable throught the hole at the bottom right hand corner of the water heater.

●

Connect the wires to the terminals on the top right hand side of the Printed Circuit Board (PCB) as shown in illustration to the left.

NOTICE: The remote control wire connection terminals are not polarity sensitive.

●

Firmly tighten the terminal screws.

●

Secure the remote control extension cable using the appropriate clamp.

●

Replace the front cover of the water heater.

●

Switch on the power supply to the water heater.

●

Ensure proper operation of the remote control and water heater.

NOTICE: If water heaters are in a manifold system the main remote control connected to the mainfold controller (MIC-180) has priority over remote controls connected to the water heaters.

Remote Control

Connection Terminals

Clamp

Gas Valve

PCB

18 AWG

Extension

Cable

Remote Control

Control

Screw

Extension

Cable

Projections

Wall

Penetration

Suitable

Wall Anchors

Base Plate

Screws

Page 21

Electrical Connection

POWER CORD (Indoor water heaters only):

● The electric power supply requirement

for this water heater is 120 VAC/60HZ, 2 Amps.

● The water heater comes with a three (3)

pin power supply cord (INDOOR MODELS ONLY). Use only a power outlet with a ground terminal.

● The installation of an electric leakage

breaker is recommended.

● Keep any excess of the power supply

cord on the outside

of the water heater.

● If local codes require hardwiring, see

instructions for “Hardwiring the Electrical Connections”.

HARDWIRING THE ELECTRICAL CONNECTIONS (Indoor or Outdoor water heaters):

● Wiring should be carried out by a

qualified electrician in accordance with local codes.

● The water heater requires 120 VAC/60Hz

and should be properly grounded.

● DO NOT connect grounding wire to

water pipes, gas pipes, telephone cables, lightning conductor circuits and to grounding circuit of other equipment that carry a ground-fault interrupter.

● An ON/OFF switch must be provided

and installed for the incoming 120VAC power.

● Wire the water heater exactly as shown

below. A wiring diagram is also found inside of the cover panel.

● A green screw is provided in the

junction box for grounding connection.

● Connect the live wire to black leg wire

and the neutral wire to the white neutral wire.

WARNING: Shock hazard line voltage is present. Before servicing the water heater, turn off the electrical power to the water heater at the main disconnect or circuit breaker. Failure to do so could result in severe personal injury or death.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify correct operation after servicing.

WIRING DIAGRAM

SW2

SW1

MAX

MIN

BUTTON

SW3

ADJUSTER

SV3 SV2

234

DIP SWITCH

W R B W

R BK BR

G/Y

SV1

S O

BUTTON

FLAME ROD1 FLAME ROD2 FLAME ROD3

OVER HEAT LIMITER

WAT E R FLOW SENSOR

GND

WATER VOLUME

CONTROL MOTOR

LIMITER

B8RGRY B OWBR

OFF

LED

MOTOR

Y B O W

8 7 6 5 4 3 2 1

2 1

3 2 1

AIR INTAKE FILTER SWITCH

G A

SV0

L E T

CIRCUIT

BOARD

BK BK

R3R4

I S T O R

MAIN REMOTE CONTROL

(UMC-117)

2 1

FUSE (5A)

PSV

2 1

T H E

O C O U P L E

FOR INDOOR MODEL ONLY

BATH REMOTE CONTROL1

(USC1-117)

6 5 4

3 2 1

ANTI-FROST HEATER

BATH REMOTE CONTROL2

(USC2-117)

FAN

MOTOR

1234

B R O Y

CONNECTOR FOR CHECKING THERMOELECTROMOTIVE FORCE

GR GR

6 5 4

IGNITER

GY GY

TRANSFORMER

AC 100V

(BLUE)

THE CONNECTORS OF DUAL AND MULTIPLE ARE INTERAPPLICABLE TO THE BODY CONNECTORS EACH OTHER.(RED)

WATER BY-PASS

SOLENOID VALVE

(RED)

W W

G/Y:GREEN/YELLOW

ELECTRODE

FUSE(3A)

WW W

COLOUR CODE

R:RED

W:WHITE BR:BROWN BK:BLACK

B:BLUE GY:GRAY GR:GREEN

O:ORANGE

Y:YELLOW

BK BK

FROST PROTECTION THERMOSTAT

FOR INDOOR MODEL ONLY

G/Y

GND

120V

BK BK

Ground Screw

Junction

Box

Connections

On/Off Switch

Wire

Page 22

Installing the water heater.

Typical Installation of Indoor Water Heater

NOTICE: The National Fuel Gas Code (NFGC) and B149 mandates a manual gas shut-off valve: See NFGC/B149 for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions.

90° Elbow

Vent Adapter

1/4" Per Foot Downward Pitch

PRIORITY

°F

POWER

ON/OFF

Wall Thimble

Outside Wall

Vent Termination

With Protective

Screen

Outside Wall

To Hot Water

Faucet(s)

Water Filter

Drain Valve

Union

Cold Water

Supply

Shut-off

Val v e

Check Val v e

Relief Valve

Discharge

Line

(To Suitable Drain)

6" (15 cm) Air Gap

Manual Gas

Appliance

Union

Sediment

Trap

Cap

Power

Supply

Cord

Shut-off

(supplied)

Manual

Gas Supply Line

Shut-off

Val v e

Remote

Control

Vacuum Relief Valve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

Page 23

Installing the water heater:

Typical Installation of Outdoor Water Heater

To Hot Water

Faucet(s)

Drain Valve

Union

Relief Valve

Discharge

Line

(To Suitable Drain)

6" (15 cm) Air Gap

Page 24

For increased energy efficiency, use pipe insulation. Please install the insulation, according to the illustrations above,

making sure to insulate all the way to the top. Do not cover any drain or pressure relief valve(s).

Do’s

❑ Do follow all installation instructions

convered in this manual.

❑ Do check inlet gas pressure to ensure that

it is within the range specified on the rating plate.

❑ Do provide adequate air for combustion

and ventilation as discussed in the Use & Care Manual and the National Fuel Gas Code (CAN/CGA B149 in Canada).

❑ Do maintain proper clearances to

combustibles and non-combustibles as specified on the nameplate.

❑ Do ensure that the venting system

complies with the guidelines found in the Use & Care Manual and National Fuel Gas Code (CAN/CGA B149 in Canada).

❑ Do contact local gas company to ensure

gas meter and gas piping are adequately sized.

❑ Do use teflon tape on water line

connections and fittings.

Don’ts

❑ Don’t block or restrict Air Intake

Opening located bottom left corner of the water heater.

❑ Don’t remove the front cover unless

absolutely necessary. This should only be done after being examined by a qualified service technician.

❑ Don’t install this product where standing

water may occur.

❑ Don’t use pipe dope on water line

connections and fittings.

During Installation of this water heater...........

Hot and Cold Pipe Insulation Installation

Insulation Blankets

Insulation blankets, available to the general public, for external use on gas water heaters are not necessary. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters. This water heater does not store water making an insulation blanket unnecessary.

The manufacturer’s warranty does not cover any damage or defect caused by installation, attachment or use of any type of energy saving or other unapproved devices (other than those authorized by the manufacturer) into, onto or in conjunction with the water heater. The use of unauthorized energy saving devices may

shorten the life of the water heater and may endanger life and property.

The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized devices.

CAUTION: If local codes require the application of an external insulation blanket to this water heater, pay careful attention to the following so as not to restrict the proper function and operation of the water heater:

● Do not cover the air inlet, flue outlet, or

operating and warning labels attached to the water heater or attempt to relocate them on the exterior of insulation blanket.

WARNING: If local codes require external application of insulation blanket kits the manufacturer’s instructions included with the kit must be carefully followed.

NOTICE: The hot and cold pipes should be insulated as shown to provide additional freeze protection.

Insulate all the way to the top

Hot

Wat er

Cold Water

Check Valve

Inlet Pipe

Gas Inle

Page 25

Installing the water heater:

A. Outdoor Water Heater Location

❑ Outdoor water heaters must be installed outdoors.

❑ Protected from freezing temperatures.

B. Indoor Water Heater Location

❑ Close to area of vent termination.

❑ Indoors and protected from freezing temperatures .

C. Outdoor and Indoor Water Heater Location

❑ Proper clearance from combustible surfaces

observed.

❑ Sufficient fresh air supply for proper operation of

water heater.

❑ Air supply free of corrosive elements and

flammable vapors.

❑ Provisions made to protect area from water

damage.

❑ Sufficient room to service heater.

❑ Combustible materials, such as clothing, cleaning

materials, rags, etc. clear of the heater and vent piping.

❑ Water heater is properly attached to the wall.

D. Water Supply

❑ Water supply has sufficient pressure.

❑ Air purged from water heater and piping.

❑ Water connections tight and free of leaks

❑ Water filter is clean and in place.

❑ Materials used are as instructed in this manual.

❑ Water pipes are insulated and protected from

freezing.

E. Gas Supply

❑ Gas type matches rating plate.

❑ Gas supply pressure is sufficient for the water

heater.

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

sediment trap.

❑ Approved pipe joint compound used. ❑ Soap and water solution used to check all

connections and fittings for possible gas leak.

❑ Gas Company inspected installation (if required).

F. Relief Valve

❑ Pressure Relief Valve properly installed and

discharge line run to open drain

❑ Discharge line protected from freezing.

G. Venting (Indoor Water Heaters Only)

❑ Materials used are as instructed in the manual. ❑ Vent connector(s) pitched downward to termination

(¼" per foot of length minimum) See page 13.

❑ Vent connector(s) securely fastened together with

high temperature silicone (500°F)

(260°C)

and air-

tight.

❑ All vent runs are properly supported. ❑ Vent terminal is properly installed. ❑ Sufficient combustion air is available.

❑ Maximum and minimum vent lengths are

observed.

H. Electrical Wiring

❑ Voltage matches rating plate.

❑ Water heater is properly grounded.

❑ Supply cord and/or wiring meets all local codes.

Installation Check List

Page 26

Lighting the water heater:

Before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the water heater resulting in property damage, personal injury, or death . Should you have any problems reading or following the instructions in this manual, STOP, and get help from a qualified person.

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING : If you do not follow these instructions exactly, a fire or explosion may result

causing property damage, personal injury or loss of life.

OPERATING INSTRUCTIONS

1.STOP! Read the safety information above on this label.

2.Turn off all electric power to the appliance.

3.Do not attempt to light the burner by hand.

4.Turn the Gas Shutoff Valve located on the outside of the unit clockwise to the "OFF" position.

5.Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to the next step.

6.Turn the Gas Shutoff Valve located on the outside of the unit counterclockwise to the "ON" position.

7.Turn on all electric power to the appliance.

8.If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance" and call your service technician or gas supplier.

GAS SHUTOFF

VALVE

OPEN CLOSE

TO TURN OFF GAS TO APPLIANCE

1.Turn off all electric power to the appliance if service is to be performed. .

Turn the Gas Shutoff Valve located on the outside of the unit clockwise to the "OFF" position.

Page 27

Time/Temperature Relationship in Scalds

Water Temperature Time To Produce a Serious Burn

120°F (49°C) More than 5 minutes 125°F (52°C) 11/2 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 11/2 seconds 155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

DANGER: There is a hot water scald potential if the temperature is set too high. Households with small children, disabled, or elderly persons may require a 120°F (49°C) or lower temperature setting to prevent contact with HOT water.

Water Temperature Setting

The temperature of the water in the water heater can be regulated by setting the temperature on the front of the remote control.

Safety factors should be considered when selecting the water temperature setting of the water heater’s remote control.

The remote control was set at 100°F (38°C) before the water heater was shipped from the factory. This is the recommended starting point.

Water temperatures above 125°F (52°C) can cause severe burns or death from

scalding. Be sure to read and follow the warnings outlined in this manual and on the label located on the water heater.

Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines. Contact a licensed plumber or the local plumbing authority for further information. (See page 4 for more details.)

The chart below may be used as a guide in determining the proper water temperature for your home.

Safety Precautions

Do turn off manual gas shut-off valve if water heater

has been subjected to over heating, fire, flood, physical damage or if the gas supply fails to shut off.

Do Not turn on water heater unless water and gas supplies are fully opened.

Do Not turn on water heater if cold water supply shut-off valve is closed.

Do Not allow combustible materials such as newspaper, rags or mops to accumulate near water heater.

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 the vicinity should be shut off including their pilot lights, to avoid vapors lighting.

NOTICE: Flammable vapors can be drawn by air currents from surrounding areas to the water heater.

If there is any difficulty in understanding or following the Operating Instructions or the Care and Cleaning section, it is recommended that a qualified person or serviceman perform the work.

Operating the water heater:

Page 28

Water Temperature Setting…

Maximum water temperature occurs while the burner is on. To determine the water temperature, turn on a hot water faucet and place a thermometer in the water stream. Water temperature at the faucet may vary depending on season and length of pipe from the water heater.

The factory setting of the remote control temperature range is between 100°F (38°C) and 120°F (49°C).

The remote control is factory preset to 100°F (38°C).

To turn the remote control ON or OFF, press the POWER button.

To adjust the temperature to a required setting , press the UP arrow temperature button.

Pressing the UP or DOWN temperature adjustment buttons will change the temperature set point.

The temperature set point on the remote control cannot be increased above 112°F (44°C) when a hot water faucet is in the open position.

The hottest temperature water will be at the hot water faucet closest to the water heater.

Always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury.

Always supervise young children or others who are incapacitated.

The water heater is equipped with a device that will shut off the gas supply to the burner if the water heater exceeds normal operating temperatures. Refer to the (Before You Call For Service) section located near the back of this manual, or contact your dealer.

WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.

If the water heater has been subjected to fire, flood or physical damage, turn off the manual gas shut-off valve(s), and do not operate the water heater again until it has been checked by qualified personnel.

Notice: The water heater may not operate with a small water flow. In such case, increase the water flow. If water heater still does not operate and hot water faucet is completely open, increase the temperature setting on the remote control.

* Temperatures above 120°F (49°C) can be achieved by adjusting the dip switch. See page 35 for dip switch adjustment.

In Use Indicator (Lit during operation)

LED Display

(Displays water

temperature and error

codes)

ON/OFF Indicator

Temperature

Adjustment

Buttons

Priority Indicator

Notice: The remote controller cannot be turned on when water is flowing or circulating through the water heater.

Notice: Display shows °F only.

PRIORITY

°F

POWER

ON/OFF

Higher (Hotter) Lower (Cooler)

100 102 104 106 108 110 112 114 116 118 120* 125 130 135 140 150 160 170 180 °F

38 39 40 41 42 43 44 46 47 48 49* 52 54 57 60 66 71 77 82 °C

Page 29

Care and cleaning of the water heater:

Routine Preventative Maintenance

Properly maintained, your water heater will provide years of dependable troublefree service.

It is recommended that a periodic inspection of the burner, relief valve, air intake filter, water filter and venting system should be made by service personnel qualified in gas appliance repair.

It is suggested that a routine preventive maintenance program be established and followed by the user.

At least once a year, lift and release the lever handle on the pressure relief valve, located in the hot outlet piping of the water heater, to make certain the valve operates freely. Allow several gallons to flush through the discharge line to an open drain.

NOTICE: If the pressure relief valve on the hot water heater discharges periodically, this may be due to a problem in the water system. Contact the water supplier or your plumbing contractor on how to correct this. DO NOT plug the relief valve outlet.

Rapid closing of faucets or solenoid valves in automatic water using appliances can cause a banging noise heard in a water pipe. Strategically located risers in the water pipe system or water hammer arresting devices can be used to minimize the problem.

Inspect the area around the water heater to ensure a safe operating environment. Keep appliance area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Ensure the unit has not been damaged. If damage or denting is present, contact a service personnel to verify proper operation.

Check for any abnormal sounds during normal operation of the water heater.

All piping should be checked for gas and/or water leaks. Refer to page 12 of this manual for instructions on leak testing.

The air intake and cold water supply filters should be cleaned monthly. Refer to the “Housekeeping” section for further information.

DO NOT operate the water heater if you feel something is wrong with the unit.

DO NOT allow children to operate or otherwise handle the unit.

Notice: After inspection, maintenance, and/or cleaning, ensure proper operation by turning on a hot water faucet.

Housekeeping

Before performing Housekeeping tasks to this water heater, turn the unit off and disconnect the power supply.

Vacuum around the water heater for dust, dirt and lint on a regular basis.

Clean the water heater and remote control by using a damp soft cloth with a few drops of mild detergent and gently wiping the surfaces of the unit. Wipe any remaining moisture with a dry soft cloth.

To ensure sufficient ventilation and combustion air supply, proper clearances must be maintained.

DO NOT block or obstruct the air intake opening located at the lower left corner of the water heater. A minimum of 12”

(30 cm) is required between this

combustion air inlet opening and any obstruction.

The Air Intake and Water filters should be cleaned on a monthly basis.

HOW TO CLEAN THE WATER FILTER:

● Make sure the unit is OFF and the

electrical power supply has been disconnected.

● Turn the water supply OFF to the

heater.

● Drain heater. See “Draining The

Water Heater” section on page 31.

● Unscrew the water filter, and slide the

filter out.

● DO NOT tap the filter as it may

deform and/or damage the filter.

● To remove severe sediment and dirt,

use a soft brush and wash with running water.

● Return the filter to the water heater and

screw in the filter.

● Turn the electrical power supply and

cold water supply ON to the water heater.

DANGER: Before manually operating the relief valve, make certain no one will be exposed to the danger of the hot water released by the valve. The water may be hot enough to create a scald hazard. The water should be released into a suitable drain to prevent injury or property damage.

DANGER: Combustible materials, such as clothing, cleaning materials, or flammable liquids, etc., must not be placed against or next to the water heater.

DANGER: Failure to perform the recommended Routine Preventative Maintenance can harm the proper operation of this water heater, which can cause carbon monoxide dangers, excessive hot water temperatures and other potentially hazardous conditions.

DANGER: Hotter water increases the potential for Hot Water Scalds.

DANGER: Shock Hazard

Make sure the electrical power to the water heater is off to avoid potential serious injury or damage to components.

Page 30

Venting System Inspection

The venting system of an indoor water heater should be inspected annually to ensure all of the vent sections are secure and air-tight.

It is recommended that qualified service personnel familiar with Category III venting inspect the venting system.

Check vent connection joint sections with a solution of soapy water to assure airtightness while the unit is operating.

Bubbles around a joint connection indicates a seal leak. Refer to page 13 for vent sealing instructions.

DO NOT operate the unit if vent system shows signs of leaking exhaust.

Check to make sure that the air intake and vent outlet on the OUTDOOR water heater or the air intake filter and the vent terminal on the INDOOR water heater has not been blocked or contain debris.

Burner Inspection

Visually inspect the main burners annually.

Through the sight glass, inspect the burner flame with the main burner off and inspect the main burner while firing.

If any unusual burner operation is noted, the water heater should be shut off until qualified service assistance can be obtained.

CAUTION: For your safety, burner inspection and cleaning should be performed only by qualified service personnel.

For cleaning, a vacuum cleaner can be used on the burner.

Proper burner pattern.

Care and cleaning of the water heater:

Vacation and Extended Shut-Down

If the water heater is to remain idle for an extended period of time, the power and water to the appliance should be turned off.

The water heater and piping should be drained if they might be subjected to freezing temperatures.

After a long shut-down period, the water heater’s operation and controls should be checked by qualified service personnel.

NOTICE: Refer to the Freeze Protection Section on page 31.

Housekeeping continued

CLEANING THE AIR INTAKE FILTER/AIR FILTER:

● Make sure the unit is OFF and the

electrical power supply has been disconnected.

● Unscrew the holding screw to the right

of the filter, and slide the filter down.

● Using a vacuum cleaner, remove any

loose dust particles. DO NOT tap the filter as it may deform and/or damage the filter.

● To remove severe dust, use a soft brush

and wash with running water.

● Allow the filter to dry completely

before reinstalling the filter on the water heater. Be sure to secure the filter by lining the guide tab in the hole and

tightening the screw.

CLEANING THE WATER HEATER AND REMOTE CONTROL(S):

● Make sure the unit is OFF and the

electrical power supply has been disconnected.

● DO NOT scrub the appliance with a

brush.

● Use only mild soapy water, other

cleaners may damage the surface of the water heater.

● DO NOT remove any label including

the rating plate while cleaning or servicing.

● DO NOT splash water on the remote

controls when cleaning.

DANGER: DO NOT attempt to operate the water heater without the air intake filter. DO NOT alter the proving switch to force the unit to operate without the air intake filter.

Notice: The water heater may

not work if the air intake filter is severely clogged.

Blue Flame

Page 31

Draining the Water Heater

Freeze Protection

Where the water heater may be exposed to freezing conditions, even for a short period of time, be sure to drain all water from the unit as instructed above.

Exposure to freezing conditions can occur from down draft of venting system or from installation in areas exposed to cold air.

The water heater is equipped with a Freeze Protection Electric Heater. As long as the electricity is supplied to the water heater, it prevents freezing inside the water heater up to an ambient temperature of approximately minus 30°F (-34°C) (without wind conditions)

This device only protects the internal components of the water heater. It does NOT protect piping and valves. Therefore, piping and valves should be wrapped with insulation material as instructed on page 24.

Another method of freeze prevention is by running a small volume of water. Running water will protect the water heater, piping and valves.

Follow the steps below to ensure proper water flow through the water heater and piping:

Turn off the switch on the remote control.

Close the gas shut-off valve.

Open the hot water faucet slightly until a stream of approximately 1/8” (.32 cm) is flowing. Be sure to check the flow periodically.

WARNING: Failure to drain the water heater can cause serious damage to the water heater as well as personal injury.

Below are instructions for draining water out of the water heater.

Turn off the switch on the remote

control.

Close the gas shut-off valve(s).

Unplug the power supply cord (or

disconnect breaker) at least 10 seconds after step #1.

Open all hot water faucets. Before

proceeding to the next step, make sure that COLD water is coming out of all hot water faucets.

Close the water shut-off valve.

Using a suitable container to catch

water, remove the water filter from heater. Attach a garden hose to the drain valve installed in the hot water outlet line and direct the stream of water to a suitable drain where it will cause no damage. Leave water heater as is until next use.

To put the water heater back into operation after draining, follow the steps below.

Reinstall the drain plug and water filter. Close the hot water outlet drain valve.

Open the water shut-off valve and close again after making sure that water comes out from hot water faucets. (This step is to remove air from the water lines.)

Plug into an electrical outlet, fully open the gas shut-off valve and the water shut-off valve.

NOTICE: The water heater may not operate unless the above procedure is followed correctly.

Draining the water heater

WARNING: Failure to follow these instructions while draining the water heater can cause serious damage to the water heater as well as personal injury including scalding.

NOTICE: DO NOT

unplug the electric power supply cord for freeze protection.

Care and cleaning of the water heater:

PRIORITY

°F

POWER

ON/OFF

To Hot Water

Faucet(s)

Page 32

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.

CAUTION: For your safety DO NOT attempt repair of electrical wiring, gas piping, remote control, burners, vent

connectors or other safety devices. Refer repairs to qualified service personnel.

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

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

dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.

Problem Possible Cause What To Do

Not enough or no hot water. Water Shutoff valve is not fully

opened.

● Check shutoff valve and open fully.

Hot water faucet is not fully opened.

● Open how water faucet completely.

(The main burner goes off when incoming water volume is inadequate.)

Water piping is frozen.

● Allow piping to thaw.

No electricity or water supply is cut off.

● Check that proper power is being

supplied and/or water supply is adequate.

Unit is not "ON".

● Turn the unit "ON" by the button

on the remote control.

The temperature may be set too low.

● Increase the temperature setting.

Mixing Valve Malfunctions (if applicable)

● Check and replace if necessary.

Error code displayed on remote controller.

● See instructions for Error Code and

if required, contact a dealer for service.

Not enough water demand.

● Increase water flow.

Water inlet filter clogged.

● Clean water inlet filter.

Fixture aerator is clogged.

● Clean aerator.

Scale build up in heat exchanger.

● Check for error code. If required,

contact a dealer for service.

Hot and cold water lines reversed.

● Reverse water connections.

Water not hot enough. The temperature may be set too low.

● Check and open the gas valve fully.

The gas valve is not fully opened.

● Call your gas company to verify

the gas meter and gas piping size.

Gas supply pressure is low.

● Call dealer for service.

Bleed over in one of the hot water fixtures.

● Decrease the temperature setting.

Water too hot. Temperature is set too high.

● Check shutoff valve and open fully.

Water shutoff valve is not fully opened.

● Allow more water to flow.

Small amount of water has been heated.

● Normal operation. There is no need

to call for service.

Fan continues to rotate after hot water faucet is closed.

This function is to supply hot water when the hot water faucet is reopened.

● Normal operation. There is no

need to call for service.

Page 33

Error Code Guide

When an error code is displayed:

● Close the hot water faucet, turn off the switch on the

remote control.

● Wait for about 5 minutes before turning the switch on

again.

● Open the hot water faucet.

If the error code remains shown:

● Close the hot water faucet and turn off the switch on the

remote control.

● Take the proper action shown below and attempt

operation of the appliance again.

If the error code is still shown:

● Turn off the hot water faucet and turn off the switch on

the remote control.

● Take note of the error code displayed and call the

customer service assistance number in the “If You Need Service” section of the manual on the back cover.

Notice: If an error code other than those listed below is displayed, immediately turn off the hot water faucet, take note of the error code, turn off the switch on the remote control and call the customer assistance number.

CAUTION: For your safety DO NOT attempt repair of gas piping, remote control, burners, vent connectors or other

safety devices. Refer repairs to qualified service personnel.

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

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

dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.

Error Code Possible Cause What To Do

11 The Gas Shutoff Valve is not opened

completely.

● Open the Gas Shutoff Valve

completely.

12 Gas Service has been interrupted.

LP Gas is running low. (LP models only)

● Contact Gas Utility Company.

● Fill up LP Gas container or

replacewith a new cylinder of LP Gas.

15 The hot water faucet is not opened enough.

● Open the faucet more to secure

enough volume.

16 The method of restarting the unit after

draining the water from it was not performed in sequesnce.

● See the section "Draining the Water

Heater"

Indoor Water Heater Only

Air intake filter may not be attached, or may not be firmly in place.

● See the section "Cleaning the Intake

Filter".

(Every 60 seconds you hear

an alarm or when the faucet is

closed, the alarm stops.)

Indoor Water Heater Only

Air intake of the unit and/or vent termination may be blocked.

Ventilator or other vents of the room may be blocked.

The air inside the room may be contaminated due to long use of a fireplace or spaceheater.

Heavy ventilation by other equipment or appliances causing the lack of air intake to the water heater.

Air shortage may be caused by too much steam in the unit.

Air intake filter is clogged.

● Remove any obstructions of the air

intake or vent termination.

● Clean the air intake of any dust or

grease build up.

● Open a window or vent to keep the

air inside the room fresh.

● Lower the level of the ventilation of

other equipment or appliances.

● Avoid direct contact from steam.

● Clean the air intake filter.

Indoor Water Heater Only

If the error code is still displayed after taking the above steps.

● Please contact a dealer for service.

1L Water heater has build up of lime deposits.

● Contact a dealer for service.

Outdoor Water Heater Only

Decrease of blower motor ventilation amount. (Operation Stops)

● Clean any blockage from heat

exchanger fins and/or blower motor

Page 34

Replacement Parts.

Indoor Water Heater

Instructions For Placing a Parts Order

Address parts orders to the distributor or store from where the water heater was purchased.

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 electrical wiring, gas piping, burners, vent connectors or other safety devices. Refer repairs to qualified service personnel.

WARNING: For your safety, DO NOT attempt to disassemble this unit for any reason.

Outdoor Water Heater

Unit Cover Panel

Heat Exchanger

Thermistor

3A (250V)

Fuses

Water Filter

SW1 SW2

SW3

DIP1

3A (250V)

Fuses

Water Filter

Burner Assembly

Cover

(w/ sight glass)

0401

A.C. 100V ACS-201X

SPARK UNIT

SW1 SW2

ONOFF

SW3

DIP1

4 3

Ignitor

Proving Switch

PC Board (PCB)

5A (250V) Fuse

Burner

Assembly

(with ODS)

Water Flow

Solenoid

Transformer

Inlet Thermistor

Outlet

Thermistor

Heat Exchange

Flame Rod/

Electrodes

Blower

Motor

Gas Valve Assembly

Unit Cover Panel

Heat Exchanger

Thermistor

Burner Assembly

Cover

(w/ sight glass)

0401

A.C. 100V ACS-201X

SPARK UNIT

ONOFF

4 3

Ignitor

PC Board (PCB)

5A (250V) Fuse

Burner

Assembly

Water Flow

Solenoid

Transformer

Inlet Thermistor

Outlet

Thermistor

Heat Exchange

Flame Rod/

Electrodes

Blower

Motor

Gas Valve Assembly

Page 35

Required adjustment for up to 180°F (82°C) water temperature settings

WARNING: Refer to scald potential warnings on page 4 before

making adjustment. Changing this setting is done at your own risk.

DO NOT alter the #4 DIP Switch if the setting of up to 180°F (82°C) is not required.

Follow the instructions below if it is determined that a setting of up to 180°F (82°C) is required.

●

Turn off remote control. Turn off the gas and water shutoff valves.

●

Remove the front cover.

●

Find the DIP Switch #4 located at the top left hand side of the PCB. (See illustration to the right for DIP Switch location)

●

Change the DIP Switch #4 setting to the “ON” position. DO NOT alter any other DIP Switch. The LED on the PCB is flashing. At the same time, the display of the Main Remote Control starts to flash.

●

Press the “Max” button on the left hand side of the PCB for more than 1 second. The LED on the PCB starts illuminating continuously. At the same time, the display of the Main Remote Control is on continuously.

●

Change the DIP Switch #4 setting back to the “OFF” position. DO NOT alter any other DIP Switch. The LED on the PCB will stop illuminating. At the same time, the display of the Main Remote Control will turn off.

●

Attach the unit’s front cover.

●

Turn on the remote control, gas and water shutoff valves.

●

Check and ensure safe operation and performance of the water heater.

See steps below to LIMIT maximum water temperature setting to 120 (49°C).

Follow first four bullets points listed above, then continue as listed below:

●

Press the “Min.” button on the left hand side of the PCB for more than 1 second. The LED on the PCB starts illuminating continuously. At the same time, the display of the Main Remote Control is on continuously.

●

Change the DIP Switch #4 setting back to the “OFF” position. DO NOT alter any other DIP Switch. The LED on the PCB will stop flashing. At the same time, the display of the Main Remote Control turn off.

●

Attach the unit’s front cover.

●

Turn on the remote control, gas and water shutoff valves.

●

Check and ensure safe operation and performance of the water heater.

DIP1

OFF

Location of DIP Switches on PC Board.

Temperature Setting DIP Switch Adjustment

The content on this page is intended for use by qualified

installation/service personnel ONLY.

“Max” Button

“Min.” Button

LED

DIP

Switches

WARNING: Improper adjustment, alteration, service or maintenance can cause property damage, personal injury, or death.

Time/Temperature Relationship in Scalds

DANGER: Hotter water increases

the potential for Hot Water SCALDS.

120°F (49°C) More than 5 minutes

125°F (52°C) 1 ½ 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 ½ seconds

155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

Water Temperature Time To Produce a Seroius Burn

SW3

SW1

DIP1

SW2

ONOFF

DIP1

OFF

SW1 SW2

ONOFF

SW3

DIP1

As set from factory

Setting during adjustment

to DIP Switch #4

for temperature.

Setting after adjustment

to DIP Switch #4

for temperature.

Page 36

IF YOU NEED SERVICE

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 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 the following address:

2600 Gunter Park Drive Montgomery, Alabama 36109-1413 Phone: 1-800-432-8373.

When contacting the manufacturer, the following information will be requested:

a. Model and serial number of the water heater as shown on the rating plate attached

to the front panel of the heater.

b. Address where the water heater is located and physical location. c. Name and address of installer and any service agency who performed service on

the water heater.

d. Date of original installation and dates any service work was performed. e. Details of the problem as you can best describe them. f. List of people, with dates, who have been contacted regarding your problem.