Bradford-White TGHE-1991-N(X) User Manual

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Bradford White EverHot Condensing Tankless Gas Water Heater

For Interior Installation

TGHE-160I-N(X)&TGHE-199I-N(X)

Ambler, PA 19002

Tech. Service (800) 334-3393

Service Part (800) 538-2020

Warranty Service (800) 531-2111

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

Do not store or use gasoline or other

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

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

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

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

INSTALLATION AND OPERATION INSTRUCTION MANUAL

With Troubleshooting Guide

PLACE THESE INSTRUCTIONS ADJACENT TO WATER HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE

A Spanish language version of these instructions is available by contacting Bradford White.

La versión espãnola de estas instrucciones se puede obtener al escribirle a la fábrica cuyo nombre aparece en la placa de.

238-48793-00C07/11

SECTION I: IMPORTANT INFORMATION

READ CAREFULLY

This gas-firedwater heater is design certified by CSA International under the American National Standard, Z21.10.3 Latest Edition (as indicated on the rating plate) and CAN/CGA4.3-MLatest Edition (as indicated on the rating plate) available from CSA Standards Association, 5060 Spectrum Way, Mississauga, Ontario, Canada L4W 5N6.

This water heater must be installed in accordance with local codes. In the absence of local codes, it must be installed in compliance with the National Fuel Gas Code (ANSI Z223.1- Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition).

The following terms are used throughout this manual to bring attention to the presence of hazards at various risk levels, or to important information concerning product life.

DANGER

Indicates an imminently hazardous situation, which, if not avoided, will result in death, serious injury or substantial property damage.

CAUTION

Indicates potentially hazardous situation, which, if not avoided, may result in moderate or minor injury or property damage.

WARNING

Indicates a potentially hazardous situation, which, if not avoided, could result in death, serious injury or substantial property damage.

NOTICE

Indicates special instructions on installation, operation or maintenance, which are important but not related to personal injury hazards.

NOTICE

This water heater has a limited warranty. The warranty for this water heater is valid only if the water heater has been installed, maintained, and operated in accordance with these instructions.

TABLE OF CONTENTS

I

IMPORTANT INFORMATION

......... 2

II

SPECIFICATIONS ..........................

6

III

INSTALLATION

 

 

INSTRUCTIONS .............................

9

IV

WATER CONNECTIONS..............

13

V

VENTING ......................................

22

VI

GAS CONNECTIONS ...................

43

VII

ELECTRICAL CONNECTIONS ...

46

VIII

OPERATING INSTRUCTIONS....

56

 

TEMPERATURE

 

 

ADJUSTMENT.............................

58

IX

MAINTENANCE...........................

64

X

PARTS LIST ................................

68

XI

WARRANTY ................................

76

2

DANGER

DO NOT store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance.

Failure to properly install the vent and air intake (if applicable) system could result in property damage, personal injury, or death.

DO NOT install any damaged venting system components. If damage is evident, please contact the supplier where the water heater was purchased or the venting manufacturer.

Use only authorized terminals for venting this water heater.

This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death. The temperature at which injury occurs varies with the person’s age and the time of exposure. The slower response time of disabled persons increases the hazards to them. NEVER allow small children to use a hot water tap, or to draw their own bath water.NEVER leave a child or disabled person unattended in a bathtub or shower.

WARNING

Improper installation, adjustments, alteration, service or maintenance can cause property damage, personal injury or loss of life. Failure to follow all instructions in the proper order can cause personal injury or death. Read and understand all instructions, including all those provided with the appliance before installing, starting-up,operating, maintaining or servicing this appliance. Keep this manual and literature in legible condition with this water heater for reference by owner and service technician.

This water heater requires regular maintenance and service to operate safely. Follow the instructions contained in this manual.

Installation, maintenance, and service must be performed only by a qualified, skilled and knowledgeable installer or service provider.

Installation is not complete unless a pressure relief valve is installed into the proper location in the hot water outlet piping of this water heater.

It is the responsibility of the installing contractor to see that all controls are correctly installed and are properly operating when the installation is complete.

This water heater is NOT suitable for installation on combustible flooring. Install water heater exactly as shown in this manual.

DO NOT operate this water heater without first being certain it is filled with water.

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WARNING

DO NOT tamper with or alter the water heater and/or controls.

DO NOT operate water heater with jumpered or absent controls or safety devices.

DO NOT operate water heater if any external part has been under water. Immediately call a qualified service technician to inspect the water heater and to replace any part of the control system including gas controls, which has been under water.

DO NOT attempt to use this water heater with any gas other than the type listed on the rating plate. Do not attempt to convert this water heater for use with a gas other than the type for which it is equipped. Failure to use the proper gas can create an unsafe condition resulting in property damage, bodily injury, or death. Consult your local gas supplier or gas company if there are any questions.

DO NOT operate this water heater if the input rate exceeds the rate shown on the water heater rating plate.

This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings nor attempt to disconnect any components of this water heater without positively assuring the water is cool and is not under pressure. Always wear protective clothing and equipment when installing, starting up or servicing this water heater to prevent scald injuries. Do not rely on the temperature gauges to determine the temperature. Do not touch any components unless they are cool.

This water heater must be properly vented and connected to an approved vent system in good condition. DO NOT operate water heater with the absence of an approved vent system. A clean and unobstructed vent system is necessary to allow noxious fumes that could cause injury or loss of life to vent safely and will contribute toward maintaining the water heater’s efficiency.

This water heater is for indoor installation only. A venting system must be used to supply outdoor air for combustion to the water heater.

This water heater requires its own separate venting system. DO NOT connect the exhaust vent into an existing vent pipe or chimney.

Water heater materials of construction, products of combustion and the fuel contain carbon monoxide, nitrogen oxides, aldehydes and/or other toxic or harmful substances which can cause death or serious injury and are known to the state of California to cause cancer, birth defects and other reproductive harm. Always use proper safety clothing, respirators and equipment when servicing or working nearby this water heater.

4

WARNING

Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, closets and areas below ground level will serve as pockets for accumulation of leaking gas. Before lighting, smell all around the appliance area for gas. Be sure to smell next to the floor.

IF YOU SMELL GAS:

DO NOT try to light any appliance.

DO NOT touch any electric switch; do not use any telephone in your building.

Immediately call your gas supplier from a telephone in another building. Follow the gas supplier’s instructions.

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

DO NOT OPERATE THE APPLIANCE UNTIL THE LEAKAGE IS CORRECTED!

WARNING

Flammable items, pressurized containers or any other potential fire hazardous articles must never be placed on or adjacent to the water heater. Open containers of flammable material must not be stored or used in the same room with this water heater.

DO NOT USE AN INSULATION BLANKET WITH THIS WATER HEATER. This water heater meets or exceeds the ASHRAE/IES 90.1b (latest edition) standards with respect to insulation and standby loss requirements.

5

SECTION II: SPECIFICATIONS

Table 1. Specifications.

 

Model

 

TGHE-160I-N(X)

 

TGHE-199I-N(X)

 

Minimum Rate Btu/h

 

 

 

9,500 (Natural)

/ 10,300 (Propane)

 

 

Maximum Rate Btu/h

 

 

157,000

 

199,000

 

 

Flow Rate (Min-Max)*

 

 

 

0.4-8.0GPM(1.5-30L/min)

 

0.4-9.8GPM(1.5-37L/min)

 

Flow Rate (45°F rise)

 

 

 

6.6 GPM (25 L/min)

 

8.5 GPM (32 L/min)

 

Default Temperature Setting

 

 

104°F (40°C)

 

 

Maximum Temp Setting

 

185°F (85°C)

 

(commercial **)

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Temp Setting (residential)

 

 

Selectable at 120°F (49°C) or 140°F (60°C)

 

 

Minimum Temperature Setting

 

98°F (37°C)

 

Weight

 

 

 

64 lb (29 kg)

 

71 lb (32.2 kg)

 

Energy Factor

 

 

0.96

 

0.94

 

 

Thermal Efficiency

 

 

 

 

95%

 

 

Noise level (inside rating)

 

50 dB

 

Electrical

 

 

 

Normal

 

 

63 W

 

80 W

 

 

 

 

Standby

 

 

2 W

 

Consumption

 

 

 

 

 

 

 

 

 

Anti-frostProtection

 

 

220 W

 

220 W

 

By-PassControl

 

 

 

Electronic

 

Minimum Gas

 

 

Natural Gas

 

 

5.0 inch W.C.

 

 

Supply

 

 

Propane

 

8.0 inch W.C.

 

Pressure

 

 

 

Maximum Gas

 

 

Natural Gas

 

 

10.5 inch W.C.

 

 

Supply

 

 

Propane

 

13.5 inch W.C.

 

Pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

Type of Appliance

 

 

 

Condensing, Tankless, Direct Vent, Temperature controlled continuous flow gas

 

 

 

 

 

water heater

 

 

 

 

 

 

 

 

 

 

 

Operation

 

 

 

With or without remote controls, mounted in kitchen, bathroom, etc.

 

 

 

 

 

 

 

 

 

 

 

Approved Gas Type

 

 

 

Natural Gas or Propane - ensure unit matches gas type supplied at the installation

 

 

 

 

location.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4"

 

Connections

 

 

 

 

 

 

 

MNPT

 

 

 

 

 

 

 

 

 

Ignition System

 

 

 

Direct Spark Ignition

 

 

Electric Connections

 

 

 

Water Heater: AC 120 Volts, 60Hz. Remote Control: DC 12 Volts (Digital)

 

Water Temperature Control

 

 

Simulation Feedforward and Feedback

 

 

Minimum Water Supply Pressure

 

50 PSI (Recommended 60-80PSI for maximum performance)

 

Maximum Water Supply Pressure

 

 

150 PSI

 

 

Remote Control Cable

 

 

 

Non-PolarizedTwo Core Cable (Minimum 22 AWG)

 

ENERGY STAR® Qualified

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

*Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature.

**For commercial and hydronic applications requiring higher temperatures. Requires the use of an optional controller (P/N 239-48789-00).

Bradford White Corporation is continually updating and improving products. Therefore, specifications are subject to change without prior notice.

The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the purpose of input adjustment.

6

Dimensions

TGHE-160I-N(X),TGHE-199I-N(X)

Table 2. Water Heater Dimensions (Approx.).

DIM

DESCRIPTION

TGHE-160I-N(X)

TGHE-199I-N(X)

in. (mm)

in. (mm)

 

 

 

 

 

 

A

Width

18 ½ (470)

18 ½ (470)

 

 

 

 

B

Depth *

10 ½ (266.9)

10 ½ (266.9)

 

 

 

 

C

Height - Unit

26 3/8 (670)

26 3/8 (670)

 

 

 

 

D

Height - with brackets

28 ½ (723.2)

28 ½ (723.2)

 

 

 

 

E

Hot Water Outlet - from wall *

4 ¼ (110)

4 ¼ (110)

 

 

 

 

F

Hot Water Outlet - from center

3 7/8 (100)

3 7/8 (100)

 

 

 

 

G

Cold Water Inlet - from wall *

2 ¾ (70.0)

2 ¾ (74.6)

 

 

 

 

H

Cold Water Inlet - from center

½ (12.8)

1 1/16 (27.7)

 

 

 

 

I

Gas Connection - from wall *

3 7/8 (99)

3 7/8 (99)

 

 

 

 

 

J

Gas Connection - from center

4 1/16

(103.2)

4 1/16 (103.2)

 

 

 

 

 

 

From base to gas connection

1 5/8

(40.2)

1 5/8 (40.2)

 

 

 

 

K

From base to cold connection

2 (50.2)

2 (50.2)

 

 

 

 

 

 

From base to hot connection

1 5/8

(40.6)

1 5/8 (40.6)

 

 

 

 

 

L

Condensate Drain – from wall *

5 3/16

(132.6)

5 3/16 (132.6)

 

 

 

 

M

Condensate Drain – from center

7 11/16 (195)

7 11/16 (195)

 

 

 

 

 

* This is the minimum dimension from the wall. The wall bracket is adjustable to allow an additional 1 5/8 in. (40 mm).

7

Pressure Drop (psi)

Water Flow Rate (gpm)

TGHE-199I-N(X)

TGHE-160I-N(X)

Pressure Loss (ft head)

Water Flow Rate (gpm)

Figure 1. Graph Showing Pressure Drop v. Water Flow Rate.

TGHE-199I-N(X)

TGHE-160I-N(X)

Temperature Rise (°F)

Figure 2. Graph Showing Water Flow Rate v. Temperature Rise.

8

SECTION III: INSTALLATION INSTRUCTIONS

WARNING

INSTALLATION OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED PLUMBER. Plumbing, air supply, venting, gas supply and electrical work are required.

DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT CERTAIN OF THE FOLLOWING:

Liquefied petroleum gases/propane gas and natural gas have an odorant added by the gas supplier that aids in detection of the gas.

Most people recognize this odor as a “sulfur” or “rotten egg” smell.

Other conditions, such as “odorant fade” can cause the odorant to diminish in intensity, or “fade,” and not be as readily detectable.

If you have a diminished sense of smell, or are in any way unsure of the presence of gas, immediately contact your gas supplier from a telephone in another building.

Gas detectors are available. Contact your gas supplier or plumbing professional for more

information.

Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, closets and areas below ground level will serve as pockets for accumulation of leaking gas. Before lighting, smell all around the appliance area for gas. Be sure to smell next to the floor.

IF YOU SMELL GAS:

Do not try to light any appliance.

Do not touch any electric switch; do not use any telephone in your building.

Immediately call your gas supplier from a telephone in another building. Follow the gas supplier’s instructions.

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

DO NOT OPERATE THE APPLIANCE UNTIL THE LEAKAGE IS CORRECTED!

WARNING

This water heater must be located in an area where leakage of the heat exchanger coil, water line connections, or the pressure relief valve will not result in damage to the area adjacent to the water heater or to lower floors of the structure. When such locations cannot be avoided, a suitable drain pan must be installed under the water heater. The drain pan depth must be suitable for draining and collecting water, and have a minimum length and width of at least four (4) inches (10.2 cm) measured from the jacket of the water heater. The drain pan, as described above, can be purchased from your plumbing professional. The drain pan must be piped to an adequate drain. The piping must be at least ¾ inch (1.9 cm) in diameter and pitched for proper drainage.

CAUTION

If building cold water supply has a back-flowpreventer, check valve or water meter with check valve, provisions for thermal expansion of water in the hot water system must be provided.

WARNING

Pressure relief valve discharge piping must be piped near floor to eliminate potential of severe burns. Do not pipe in any area where freezing could occur. Do not install any shut-offvalves, plugs or caps to the temperature and pressure relief valve or piping.

9

DANGER

Temperature setting should not exceed safe temperature at fixtures. See water temperature control warning in the “Temperature Adjustment” section of this Installation and Operation Manual. If higher preheat temperatures are necessary to obtain adequate booster output, add an ASSE approved mixing valve for hot water supplied to fixtures.

WARNING

Residential use water heaters are suitable for potable water heating only. DO NOT use a residential use water heater for space heating or combination space heating/domestic water heating. Commercial use water heaters may be used for space heating or combination space heating/domestic water heating. Refer to the instructions for space heating in this Installation and Operation Instruction Manual.

This water heater is not suitable for use in pool or spa applications.

The water heater must be installed indoors using the proper venting system components for combustion air supply and discharging flue products to the outdoors. Contact the supplier of this water heater, the suppliers listed in this manual, or Bradford White for venting components.

DO NOT operate this water heater without the vent piping connected.

All pipe joints should be taped to help prevent leakage around joints.

UNPACKING

INSPECT SHIPMENT carefully for any signs of damage.

1.All equipment is carefully manufactured, inspected and packed.

2.Any claims for damage or shortage in shipment must be filed immediately with Bradford White Corporation and noted on the Bill of Lading.

WATER HEATER LOCATION

1.The TGHE series water heaters may be vented either horizontally through an outside wall or vertically through the roof using the venting components designed for this water heater. Contact your Bradford White supplier or those suggested in this manual to order the required venting components. The venting system should be as short as possible. Refer to the Venting System Installation section of this Installation and Operation Manual for the vent terminal location restrictions before choosing a final location for the water heater.

2.The water heater must be installed on a wall capable of supporting up to 71 pounds (32 kg), depending on the model. Locate the water heater at a height convenient for servicing and above the reach of small children.

3.Refer to Table 3 for minimum clearances to combustibles.

4.If the water heater is installed in a confined space, such as a closet, ventilation air must be provided to prevent increased room temperature. Excessive ambient temperatures surrounding the water heater may shorten the life of the controls.

REMOVE CARTON

Move water heater to a location near where it will be installed. Carefully slide water heater out from the carton and remove all the contents.

10