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S
INGLE
A Spanish language version of these instructions is available by contacting the
La version espanola de estas instruccions se puede obtener al escribirle a la
fábrica cuyo nombre aparece in la placa de especificaciones.
INSTALLATION/OPERATING MANUAL
WITH PARTS LISTING AND TROUBLESHOOTING GUIDE
-
WALL
WATER HEATER
manufacturer listed on the rating plate.
I
NDIRECT
WARNING
To avoid damage or injury,
there must be no materials
stored against the indirect
water heater and proper care
shall be taken to avoid
unnecessary contact (especially
by children) with the indirect
water heater.
Do not store or use
q
gasoline or other
flammable liquids in
the vicinity of this
water heater or any
other appliance.
238-43480-00B REV 12/03
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Summary of Contents for Bradford White GX1-55S
- Page 1 NDIRECT WATER HEATER To avoid damage or injury, there must be no materials stored against the indirect water heater and proper care shall be taken to avoid unnecessary contact (especially by children) with the indirect water heater. Do not store or use...
- Page 2 For your family’s comfort, safety, and convenience, we recommend this water heater be installed and serviced by a plumbing professional.
- Page 3 For your records we recommend that you write the model, serial number and installation date of your water heater in the back of this manual. This manual should be kept with the water heater.
- Page 4 IMPORTANT INFORMATION -READ CAREFULLY- The equipment must be installed in accordance with those installation regulations required in the area where the installation is to be made. These regulations must be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.
- Page 6 This water heater is supplied 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.
- Page 7 See the Water Connections section of this manual for details. This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings or attempt to disconnect any components of this water heater without positively assuring the water is cool and has no pressure.
- Page 10 DO NOT tamper with or alter the water heater and/or controls. DO NOT operate the water heater if any external part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system that was under water.
- Page 12 The maximum boiler water supply temperature to the indirect heat exchanger must not exceed 240°F (116°C). Insulation blankets are not required for this water heater. This water heater meets or exceeds the ASHRAE/IES 90.1b standards with re spect to insulation and standby loss requirements.
- Page 13 Figure 1 – Tank Layout Table 1: Water Heater Dimension (Inches) MODEL SW-2-30-L SW-2-40-L SW-2-50-L SW-2-65-L SW-65C-5 SECTION II SPECIFICATIONS 33-5/8 59-1/4 59-1/4 5-3/8 5-3/8 5-3/8 5-3/8 5-3/8...
- Page 14 SW-2-80-L SW-80C-5 SW-2-120-L SW-120C-5 62-1/2 62-1/2 5-3/8 5-3/8 6-3/8 6-3/8...
- Page 15 Table 2: Water Heater Capacities Tank Capacity MODEL (Gal) SW-2-30-L SW-2-40-L SW-2-50-L SW-2-65-L SW-65C-5 SW-2-80-L SW-80C-5 SW-2-120-L SW-120C-5 Table 3: Water Heater Performance Maximum First Hour Rating (Gal/Hr) @ MODEL 140 °F SW-2-30-L SW-2-40-L SW-2-50-L SW-2-65-L SW-65C-5 SW-2-80-L SW-80C-5 SW-2-120-L SW-120C-5 NOTES: All ratings based on 200 °F boiler water...
- Page 16 4 gallons per minute flow rate. The maximum heat transfer through the coil (heat input) of the water heater at 240°F boiler water supply temperature and 210°F potable water temperature is 94,100 Btu/hr for residential models and 180,300 Btu/hr for commercial models.
- Page 17 compliance with the code.
-
Page 18: General Information
“Section VII – Operating Instructions.” It is further recommended, in all cases, that the water temperature be set for the lowest temperature that satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater and minimizes scale formation. SECTION III... - Page 19 Setting the water heater temperature at 120°F will reduce the risk of scalds. Some states require settings to specific lower temperatures.
- Page 20 The combination temperature and pressure relief valve must also have an hourly rated temperature steam BTU discharge capacity not less than the hourly rating of the water heater. The supplied combination temperature and pressure relief valve, when properly installed and unrestricted, will discharge the maximum input produced by a 240°F (116°C) boiler supply temperature.
- Page 22 DO NOT thread, plug, or cap the discharge line. It is recommended that a minimum clearance of four (4) inches be provided on the side of the water heater for servicing and maintenance of the combination temperature and...
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Page 23: Before Installation
BEFORE INSTALLATION SIZING 1. Boiler DOE Heating Capacity – The Single-wall Indirect water heater will provide the rated performance only if used in conjunction with a boiler with a DOE heating capacity (Boiler Output) at least as much as the minimum noted in Table 3. - Page 24 SYSTEM ZONE CONTROL The Single-wall Indirect water heater must be installed as a zone separate from the space heating system. The domestic hot water zone’s piping and circulator must be sized for a minimum flow rate...
- Page 25 heater in use. For this reason, the preferred method of zone control is with circulators.
- Page 26 Zone Valves – Select a valve with a low-pressure drop to assure adequate flow through the water heater. Hybrid – The space heating zone can be zoned using zone valves and the Single-wall Indirect zoned with a circulator.
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Page 27: Recommended Service Clearances
Component Location This water heater must be located in an area where leakage of the tank, water line connections, or the temperature and 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. -
Page 28: Appliance Location
2. Unions – Allows water heater movement during service if adequate clearance cannot be provided. 3. Thermal Expansion Tank – If the water heater is installed in a closed water supply system, such as one having a back-flow preventer in the cold water line, provide thermal expansion control. - Page 29 CAUTION If sweat fittings are to be used, DO NOT apply heat to the nipples on top of the water heater. Sweat the tubing to the adapter before fitting the adapter to the water connections. It is imperative that heat is not applied to the nipples containing a...
- Page 30 Install a shut-off valve in the cold water supply line. 2. If this water heater is installed in a closed water supply system, such as one having a back-flow preventer in the cold water supply, provisions must be made to control thermal expansion.
- Page 31 “FROM BOILER SUPPLY” should be piped to the boiler supply piping. Mount the circulator making sure the flow arrow points toward the water heater. The use of shut-off valves and unions are recommended for future service convenience. The use of an air separator and vent is recommended to eliminate air in the system.
- Page 32 “FROM BOILER SUPPLY” should be piped to the boiler supply piping. Mount the circulator making sure the flow arrow points toward the water heater. The use of shut-off valves and unions are recommended for future service convenience. The use of an air separator and vent is recommended to eliminate air in the system.
- Page 33 The use of an in-line “Y”-style strainer is required to prevent accumulation of sludge in the water heater’s coil. Figure 4 – Typical Steam Boiler Connections (connections available...
-
Page 34: Electrical Connections
The Single-wall Indirect is supplied with an aquastat temperature control. This aquastat must be installed in the aquastat well location of the water heater. Refer to Figure 5. Remove the cover and loosen the clamping screws. Insert the aquastat capillary bulb to the well bottom as shown and screw the aquastat clamp securely in the well groove. - Page 35 made to not rotate this dial while wiring the control. Once electrical connections are...
- Page 36 AT NO TIME SHOULD WATER HEATER OPERATION TAKE PLACE WITHOUT THE COVER ON THE CONTROL. Figure 5 - Aquastat Control...
- Page 37 WATER HEATER OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER. Installation or service of this water heater requires ability equivalent to that of a licensed tradesman in the field involved. Plumbing and electrical work are required.
- Page 38 The differential is a fixed 5°F with a 160°F maximum setting, set at the factory to 120°F. This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. By setting the aquastat on this water heater to obtain an increased water temperature, you may create the potential for scald injury.
- Page 40 Adjusting to a lower temperature setting will not immediately affect water temperature. Draw sufficient water or allow the water heater to sit until a heat-up cycle is initiated. Repeat step 3. b. Adjusting to a higher temperature may not immediately affect water temperature.
- Page 41 Repeat step 3.
- Page 42 Components that require service, however, may be subject to failure. Failure to use the correct procedures or parts in these circumstances may make the water heater unsafe. The owner should arrange to have the following inspections and simple maintenance procedure performed by qualified service personnel at the frequencies suggested.
- Page 43 To inspect or replace an anode: The anodes on this water heater are easily accessible from the top of the heater making replacement simple and quick. Turn the water heater electricity off for the zone containing the Single-wall Indirect.
- Page 44 Open the cold water supply to the heater and allow the tank to fill. Check your anode and drain valve for leaks. Turn the water heater electricity on for the zone containing the Single-wall Indirect. Sediment (Annual, but harsh water quality may...
- Page 45 TROUBLE SHOOTING GUIDE PROBLEM No hot water at Boiler does not faucet operate Circulator does not operate Improper aquastat setting or calibration Zone valve does not open (if used) Electrical problem (relay, wiring, etc.) Scale build-up Clogged cold water filter or boiler supply strainer (if used) Water at faucet...
- Page 46 TROUBLE SHOOTING GUIDE (CONT.) PROBLEM Insufficient hot Aquastat setting too water Undersized boiler with no priority to domestic hot water Peak use of hot water is greater than tank storage capacity Faulty tank aquastat Replace aquastat Boiler cycles Excessive demand more than 5 times per day in Faulty aquastat...
- Page 47 PART NAME & DESCRIPTION 1. Aquastat Control 2. Aquastat Well 3. Anode 4. Diptube 5. Outlet Nipple 6. T & P Relief Valve SECTION X PARTS LIST 7. Drain Valve 8. Jacket Head Pan 9. Hole Closure 10. Heat Exchanger Escutcheon 11.
- Page 48 Provide the part name, model, and serial numbers of the water heater when ordering parts. READ THE WARRANTY FOR A FULL EXPLANATION OF THE LENGTH OF TIME THAT PARTS AND THE WATER HEATER ARE WARRANTED. Manufactured under one or more of the following U.S. Patents: 4,416,222;...
- Page 49 Notes...