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Bradford White EverHot Tankless Gas Water Heater
For Interior Installation
TG-150I-N(X), TG-180I-N(X), TG-199I-N(X), TG237I-N(X) & TG-237I-N(X)A
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
WHA
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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. In the absence of local codes, it must be insta
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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
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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 he
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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 electri
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SECTION II: SPECIFICATIONS Table 1. Specifications. Model TG-150I-N(X) TG-180I-N(X) TG-199I-N(X) TG-237I-N(X) TG-237I-N(X)A Minimum Rate Btu/h 15,000 19,000 199,000 Natural Gas Maximum Rate Btu/h 150,000 180,000 237,000 190,000 Propane 0.6-5.0 GPM 0.6-7.5 GPM 0.6-9.4 GPM 0.6-9.8 GPM Flow Rate (Min-Max) * (2.3-18.9 (2.3-28.4 L/min) (2.3-35.5 L/min) (2.3-37 L/min) L/min) 5.0 GPM 6.7 GPM 7.1 GPM 8.5 GPM Flow Rate (45F rise) (18.9 L/min) (25.4 L/min) (27.0 L/min) (32.2 L/min) Def
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Dimensions TG-150I-N(X), TG-180I-N(X), TG-199I-N(X) TG-237I-N(X), TG-237I-N(X)A Table 2. Water Heater Dimensions (Approx.). TG-150I-N(X) TG-237I-N(X) TG-180I-N(X) DIM DESCRIPTION TG-237I-N(X)A TG-199I-N(X) in. (mm) in. (mm) A Width 14 (355.6) 18 1/2 (470) B Depth * 9 5/8 (244.5) 9 1/8 (230.5) C Height - Unit 22 7/8 (582) 23 5/8 (600) D Height - with brackets 25 1/2 (648.2) 25 1/8 (639.8) E Hot Water Outlet - from wall * 3 5/8 (91) 4
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TG-237I-N(X) TG-150I-N(X) TG-180I-N(X) TG-199I-N(X) TG-237I-N(X)A Water Flow Rate (gpm) Figure 1. Graph Showing Pressure Drop v. Water Flow Rate. TG-237I-N(X & TG-237I-N(X)A 10.0 9.0 TG-199I-N(X) 8.0 7.0 TG-180I-N(X) 6.0 5.0 4.0 TG-150I-N(X) 3.0 2.0 1.0 0.0 0 25 50 75 100 125 150 Temperature Rise (°F) Figure 2. Graph Showing Water Flow Rate v. Temperature Rise. 8 Water Flow Rate (gpm) Pressure Drop (psi) Pressure Loss (ft head)
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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 a
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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 Instruction 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 p otable water heating only. DO NOT use a residential
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MOUNT WATER HEATER ON THE WALL Determine the proper height and location for the water heater to be installed. Consider the venting system, as well as the water and gas connections. Allow enough room for servicing the water heater and maintain the clearances from combustible materials. The water heater is supported on the wall by means of a top and bottom slotted angle bracket. For convenience, the center hole of the bracket is slotted so that a center screw may be first installed in
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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 & 5.00) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwe
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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. This may
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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.
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Figure 3. Scald Warning. Table 5. Approximate scald time/temperatures. APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS More than 5 minutes 120°F (49 C) 1½ to 2 minutes 125°F (52 C) 130°F (54 C) About 30 seconds 135°F (57 C) About 10 seconds Less than 5 seconds 140°F (60 C) Less than 3 seconds 145°F (63 C) 150°F (66 C) About 1½ seconds 155°F (68 C) About 1 second 15
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Figure 4. Recommended Piping for a Basic Installation. 16
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Figure 5. Recommended Piping for a Circulation Systems. 17
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Recommended Piping for Power Failure Freeze Protection water heater, freeze protection is As long as electrical power and gas are supplied to the EverHot provided to the heat exchanger and piping inside the water heater with ambient temperatures as cold as -30 F (-34 C), 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. The water heater may be d
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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. For protection against excessive pressure, install pressure protective equipment required by local codes, but not less than a pressure relief valve certified by a nationally recognized testing laboratory that maintains periodi
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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. All piping components connected to this water heater must be sui
