Bradford White EverHot Condensing Tankless Gas Water Heater For Exterior Installation TGHE-160E-N(X) and TGHE-199E-N(X) 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.
SECTION I: IMPORTANT INFORMATION READ CAREFULLY This gas-fired water heater is design certified by CSA International under the American National Standard, Z21.10.3 (as indicated on the rating plate) and CAN/CGA 4.3-M (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.
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. This water heater is for outdoor installation only. Do not install indoors. 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.
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.
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.
SECTION II: SPECIFICATIONS Table 1. Specifications. Model TGHE-160E-N(X) Minimum Rate Btu/h TGHE-199E-N(X) 9,500 (Natural) / 10,300 (Propane) Maximum Rate Btu/h 157,000 199,000 Flow Rate (Min-Max) * 0.4-8.0 GPM (1.5-30 L/min) 0.4-9.8 GPM (1.5-37 L/min) Flow Rate (45°F rise) 6.6 GPM (25 L/min) 8.
Dimensions TGHE-160E-N(X), TGHE-199E-N(X) Table 2. Water Heater Dimensions. DIM DESCRIPTION TGHE-160E-N(X) In. (mm) TGHE-199E-N(X) in. (mm) A Width 18 ½ (470) 18 ½ (470) B Depth 10 5/8 (271.9) 10 5/8 (271.9) C Height - Unit 26 3/8 (670) 26 3/8 (670) D Height - with brackets 28 3/8 (721.6) 28 3/8 (721.6) E Hot Water Outlet - from wall 4 ½ (115) 4 ½ (115) F Hot Water Outlet - from center 3 7/8 (100) 3 7/8 (100) G Cold Water Inlet - from wall 3 (75.0) 3 (75.
TGHE-199E-N(X) Pressure Drop (psi) Pressure Loss (ft head) TGHE-160E-N(X) Figure 1. Graph Showing Pressure Drop v. Water Flow Rate. Water Flow Rate (gpm) TGHE-199E-N(X) TGHE-160E-N(X) Temperature Rise (°F) Figure 2. Graph Showing Water Flow Rate v. Temperature Rise.
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.
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 WARNING 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.
MOUNT WATER HEATER ON THE WALL This water heater must be installed outdoors. Refer to Table 3 clearances under overhangs, windows, doors, etc. Also, avoid locations where there is heavy water run-off from roofs. Determine the proper height and location for the water heater to be installed. Consider the water and gas connections. Allow enough room for servicing the water heater and maintain the clearances from combustible materials.
State Regulations NOTICE BEFORE INSTALLATION Bradford White direct-vent appliance must be installed by a state qualified or licensed contractor. If you are not properly trained, you must not install this unit. IMPORTANT: In the State of Massachusetts (248CMR 4.00 & 5.
VENT TERMINAL K AIR SUPPLY INLET OPERABLE D E L B F B C A FIXED CLOSED G B B B A J FIXED CLOSED OPERABLE B H I M AREA WHERE TERMINAL IS NOT PERMITTED Figure 3. Installation Clearances.
Table 4. Installation Clearances.
Local codes supersede these clearances. Avoid termination locations near a dryer vent. Avoid termination locations near commercial cooking exhausts. 36" * (0.91 m) to ventilated or unventilated soffit or eve vent or to a deck or porch 12" (0.30 m) to an inside 2" (50 mm) between terminals at same level INSIDE CORNER Figure 4. Additional Installation Clearances.
High Altitude Installations The default setting for the water is 0-2,000 ft (0-610 m) with dip switch numbers 2 and 3 in the OFF position. If this water heater is installed at a higher altitude, it is necessary to modify the dip switch settings according to Table 5. Table 5. Dip Switch Settings for High Altitude Installations. 0-2000 ft (0-610 m) 2001-5200 ft (610-1585 m) 5201-7700 ft (1585-2347 m) 7701-10200 ft (2347-3109 m) Switch No. 2 OFF OFF ON ON Switch No. 3 OFF ON OFF ON Switch No.
SECTION IV: WATER CONNECTIONS WARNING Failure to install and maintain a new, listed pressure relief valve will release the manufacturer from any claim, which might result from excessive temperature and pressures. Keep clear of the pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash. WARNING DO NOT reverse the inlet and outlet (cold and hot water) connections on the water heater.
potable water. Unions should be installed on both the hot and cold water lines for future servicing and disconnection of the water heater. Install a shut-off valve in the cold water supply line. 2. In order to service the water heater in the event the heat exchanger needs to be flushed of mineral deposits, tee fittings with shut-off valves and service connections to hoses should be installed. Also, install a shut-off valve to the hot water supply to isolate the service tee fittings.
Figure 5. Scald Warning. Table 7. Approximate scald time/temperatures. APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS More than 5 minutes 120°F (49C) 1½ to 2 minutes 125°F (52C) About 30 seconds 130°F (54C) About 10 seconds 135°F (57C) Less than 5 seconds 140°F (60C) Less than 3 seconds 145°F (63C) About 1½ seconds 150°F (66C) About 1 second 155°F (68C) Condensate The TGHE series water heaters are factory equipped with a condensate trap and drain line.
Figure 6. Recommended Piping for a Basic Installation.
Pump to be of bronze or stainless construction Figure 7. Recommended Piping for a Circulation Systems.
Recommended Piping for Power Failure Freeze Protection As long as electrical power and gas are supplied to the EverHot water heater, freeze protection is provided to the heat exchanger and piping inside the water heater with ambient temperatures as cold as -4F (-20C), when protected from direct wind exposure. In the event of a power failure with ambient temperatures below freezing, the water heater must be drained of all water to prevent freeze damage.
PRESSURE RELIEF VALVE WARNING Keep clear of the pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash.
Combination Water and Space Heating Applications – Commercial Use Water Heaters Only Commercial use water heaters may be used for space heating or combination space heating/potable water heating applications, provided the following requirements and recommended piping diagrams are carefully followed. WARNING The following instructions must be carefully followed to assure safe and reliable operation of the water heater.
Note: in Massachusetts, the following must be done: Tempered potable water must meet temperatures in 248 CMR. All water piping must be insulated in accordance with 780 CMR (Massachusetts energy code). 50 feet maximum distance from water heater to space heating load (developed length). Piping loop between water heater and heating load must be in compliance with 248 CMR. All circulators must use an electronically controlled timer that activates every 6 hours for 60 seconds. Figure 9.
SECTION V: GAS CONNECTIONS WARNING Connect this water heater only to the type of gas as shown on the rating plate. Use clean black iron pipe or equivalent material approved by local codes and ordinances. Dirt and scale from the pipe can enter the gas valve and cause it to malfunction. The inlet gas line must have at least a 3 in. (7.62 cm) drip leg (sediment trap) installed as close to the water heater’s gas valve as possible.
Check the type of gas and the gas inlet pressure before connecting the EverHot® water heater to the gas supply. If the gas supply type does not match the type shown on the water heater rating plate, then DO NOT connect the water heater. Contact your Bradford White supplier for the correct water heater.
INITIAL OPERATION AND TESTING (INSTALLER ONLY) 1. Open the gas and water supply valves to the water heater. 2. Check for water and gas leaks. Use soap solution to check for gas leaks. 3. To check inlet supply pressure, remove the 1/8” NPT plug on the gas inlet supply fitting just below the bottom casing and install a barb fitting for attaching a hose to a manometer. For checking the gas manifold pressure, the plug is located just below the gas manifold connection inside the control panel. 4.
SECTION VI: ELECTRICAL CONNECTIONS WARNING Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. All electrical wiring must be installed and grounded in accordance with local codes, or in the absence of local codes, the National Electrical Code, ANSI/NFPA 70 (latest edition) and/or CSA C22.
TWIN THERMISTOR WATER LEVEL DETECTING CIRCUIT WATER LEVEL ELECTRODE Figure 10. Ladder Diagram. WARNING DO NOT adjust any dipswitch settings on PC board unless instructed to do so.
Figure 11. Wiring Diagram for TGHE Models.
TEMPERATURE CONTROLS The included temperature control allows the end user to set the hot water supply temperature and will display certain diagnostic codes of the water heater if there is a malfunction. All models have the option of up to four controllers that can be used to conveniently control water temperatures for bath and shower fixtures. The main control is to be at a convenient location inside the installation home or building. The adjustment range is 98-120F.
WARNING Do not adjust this water heater in any residential application above 120ºF. If this water heater is used in a commercial application where temperatures in excess of 120ºF are required, use an ASSE approved mixing device. WARNING This water heater is equipped with an energy cut out device to prevent overheating. Should overheating occur or the gas supply fails to shut off, turn off the manual gas control valve to the water heater, and call a qualified service agency.
In Use Indicator Temperature Display Priority Button Priority Indicator Figure 12. Remote Control and the Description of Functions on All Controls. Residential Control, p/n 239-48788-00 Commercial Control, p/n 239-48789-00 Installation of Control(s) 1. The controls may be wired in parallel only. 2. Mark the holes on the wall using the control mounting plate and drill two mounting holes using a 3/32” (2.4 mm) drill bit and a clearance hole for the cable using a ¼” (6.4 mm) drill bit.
8. Remove the plastic cover from the PCB and electrical connections. 9. Thread the cable through the access hole at the base of the water heater and connect the wires to the control terminals on the right hand side of the PCB. REMOTE CONTROL CONNECTION TERMINALS REMOTE CONTROL CABLE CABLE CLAMP Figure 14. Illustration Showing Where to Connect Remote Control Harness. 10. Secure the control cable using the clamp provided in the control compartment. 11.
Troubleshooting – Electrical There are a number of (live) tests that are required when fault finding this product. Extreme care should be used at all times to avoid contact with energized components inside the water heater. Only trained and qualified service technicians should attempt to repair this product. Before checking for resistance readings, disconnect the power source to the unit and isolate the item from the circuit (unplug it). Table 11.
Table 16. (FM) Combustion Fan Motor. n/a Connector No. L1 Pin Nos. 1-2 5-10 VDC 9.2-9.4k ohms L1 2-4 11-13 VDC 3.5-3.9k ohms L1 2-3 Wire Color Voltage Resistance Red-Black 6-45 VDC White-Black Yellow-Black Set your meter to the hertz scale. Reading across the white and black wires at terminals 2 and 4 you should read between 60 and 420 hertz. Table 17. Thermal Fuse / Overheat Switch. Wire Color Voltage Resistance Connector No. Pin Nos.
Table 21. Remote Controls. Wire Color Voltage Resistance Terminals A1 10-13 VDC 1.5-3.0k ohms Connector No. A Pin Nos. 1-3 Frost Protection: This unit has frost protection heaters mounted at different points to protect the water the water heater from freezing. The heaters located on the hot water outlet line should have a resistance reading of 10-20 ohms through each of these heaters.
SECTION VII: OPERATING INSTRUCTIONS WARNING Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and direct vent system.
LIGHTING INSTRUCTIONS 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. A. This water heater does not have a Immediately call your gas supplier from a pilot. It is equipped with a direct neighbor’s phone. Follow the gas supplier’s ignition device, which automatically instructions. lights the burner.
CAUTION In climates where below freezing temperatures may occur, the water heater must be drained when power is off to the water heater to prevent freeze damage to the heat exchanger. Drain solenoids are recommended to prevent freeze damage during power failures in cold climate regions. TURNING OFF THE WATER HEATER FOR AN EXTENDED PERIOD OF TIME If the EverHot water heater is to be turned off for an extended period of time, the following steps should be taken. 1.
2. To set the desired temperature on the control, all hot water faucets must be closed. If there are more remote controls installed, press the “Priority” button on the control you want to change the setting on and the “Priority” indicator light will glow. 3. Press the “Up” or “Down” button until the required temperature is displayed on the digital monitor. The default available water temperature range for the main control is 98-120ºF. 4. To operate the water heater, simply turn any hot water tap on.
SCALDING Figure 17. Scalding Warning. This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances, such as dishwashers and automatic clothes washers may require increased water temperature. By setting the thermostat on this water heater to obtain the increased temperature water required by these appliances, you may create the potential for scald injury.
DIAGNOSTIC CODES ON THE TEMPERATURE CONTROL DISPLAY The Bradford White EverHot tankless water heaters have the ability to monitor and display any operating faults on the control display. The diagnostic codes will display on the monitor and will assist in servicing the water heater. The following is a listing of the diagnostic codes, which may flash on the monitor in case of a malfunction with the water heater. Please quote the code displayed when calling for service.
Code Code Description Remedy 16 Over Temperature Warning 25 Condensate Trap Error Check for restrictions in air flow around unit and vent terminal. Check for low water flow in a circulating system causing short-cycling. Check for foreign materials in combustion chamber and/or exhaust piping. Check for clogged heat exchanger. Condensate container is full. Check condensate drain for blockage. Replace condensate trap. 31 Burner Sensor Error Measure resistance of sensor. Replace sensor.
SECTION VIII: MAINTENANCE WARNING Always turn off the electrical power supply, the manual gas valve, and the manual water control valve whenever servicing this appliance. KEEP THE WATER HEATER AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND LIQUIDS. The EverHot water heater should be checked annually by a qualified technician. Regular maintenance will keep the water heater operating efficiently and help to assure reliable operation and a long service life. 1.
CAUTION Before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation. FLUSHING PROCEDURE FOR MINERAL SCALE REMOVAL FROM HEAT EXCHANGER The amount of calcium carbonate (minerals) released from water is in direct proportion to water temperature and usage.
Eve r Hot® Rinnai Water Heater In-line Filter V2 V1 H3 V4 V3 Cold Water Line Hot Water Line H2 H1 5 gallon pail of virgin, food grade, white vinegar (or virgin, food grade, citric acid). Circulating Pump Figure 19. Piping for Mineral Scale Flushing.
Common Troubleshooting Comments on the Operation of the EverHot® Tankless Water Heater Comment: I don’t have any hot water when I open the tap! Make sure the gas and electricity is turned on to the water heater. The temperature display should have the green light lit when a hot water tap is open and the water heater is operating. Make sure there are no diagnostic codes flashing on the display.
SECTION IX: PARTS LIST TGHE-160E and TGHE-199E Models 50
TGHE-160E No.
TGHE-160E No.
TGHE-160E No.
TGHE-160E No.
SECTION X: WARRANTY What does this Limited Warranty Cover? This limited warranty covers both the heat exchanger and component parts for leakage or other malfunction caused by defects in materials and/or workmanship. It applies to the original consumer purchaser and to any subsequent owner as long as the water heater remains installed at its original place of installation.
demand recirculation is not incorporated. A system that incorporates a continuous recirculation due to timer settings, excessive heat loss of the loop or aquastat / thermostat setting will be treated as a continuous circulation system and have a reduced warranty of 3 years. On-demand recirculation is defined as a hot water re-circulating loop or system that utilizes existing hot and cold lines or a dedicated return line, and only activates when hot water is used.
EverHot® Limited Warranty Registration In order to confirm Limited Warranty coverage at 12 years for Residential Applications1, complete the information below and click submit.
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Ambler, PA For U.S. and Canada field service, Contact your professional installer or local Bradford White representative. Sales/800-523-2931 Fax/215-641-1670 Parts Fax/215-641-2180 Technical Support/800-334-3393 Fax/269-795-1089 Warranty/800-531-2111 Fax/269-795-1089 International: Telephone/215-641-9400 Telefax/215-641-9750 Mississauga, ON Sales/866-690-0961 905-238-0100 Fax/905-238-0105 Technical Support/800-334-3393 Email parts@bradfordwhite.com techserv@bradfordwhite.com www.bradfordwhite.