Bradford White 238-37281-00R manuale d’uso

238-37281-00R REV 05/07 GAS WATER HEATER 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 [...]

2 CONGRATULATIONS! You have just purchased one of the finest water heaters on the market today! This installation, operation and instruction manual will explain in detail the installation and maintenance of your new Direct Vent Gas Water Heater. We strongly recommend that you contact a plumbing professional for the installation of this water heater[...]

3 TABLE OF CONTENTS Page GENERAL INFORMATION ............................................................ 4 INSTALLATION ............................................................................. 5 Locating The Water Heater .................................................... 5 Minimum Clearances .................................................[...]

4 GENERAL INFORMATION This water heater must be installed in accordance with The Federal Manufactured Home Construction And Sa fety Standard (H.U.D. Title 24, Part 3280.707d2) or CAN/CSA Z240 MH series, mobile home. In the absence of such a standard, the water heater should be installed in accordance with the Standard For Mobile Homes (ANSI/NFPA NO[...]

5 General Information continued- This water heater has been manufactured for operation at altitudes from sea level to 2000 feet (610m) (unless other wise specified on the water heater). For use of this appliance at an elevation greater than 2000 feet (610m), contact the dealer or manufacturer listed on t he rating plate for information on any neces[...]

6 Installation (Locating The Wate r Heater) continued - Water heater corrosion and component failure can be caused by the heating and breakdown of airborne chemical v apors. Examples of some typical compounds that are potentially corrosive are: spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool c[...]

7 Installation (Locating The Wate r Heater) continued - This water heater MUST be installed indoors out of the w ind and w eather. This water heater must be located in an area where leakage of the tank, water line connections, or the combination tem perature and pressure relief valve will not result in damage to the area adjacent to the water heate[...]

8 Installation continued- Figure 1 Combustion Air Supply All combustion air must be supplied from outdoors by one of the following installation methods and as illustrated in Figure 2. The flow of combustion and ventilating air must not be obstructed. Adequate air must be supplied for combustion and ventilation. An insufficient supply of air will ca[...]

9 Combustion air supply continued- 1. After selecting the proper location for the water heater, cut a 4” (10.2cm ) diameter hole through the floor and all other layers of flooring and sheathing directly beneath the front center of the water heater. 2. Insert the air intake into the 4” (10.2cm ) diameter hole and fasten to the floor with the scr[...]

10 Installation (Venting) continued- Figure 2 Water Connections NOTE: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE. After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the pipes while making the water connections to the water heater. After [...]

11 Water connections continue d- If this water heater is installed in a cl osed water supply system, such as the one having a back-flow preventer in the cold water supply, provisions shall be made to control thermal expansion. DO NOT operate this water heater in a closed system without provisions for contro lling thermal expansion. Your water suppl[...]

12 Water Connections continued- This water heater can deliver scalding te mperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances such as dishwashers and aut omatic clothes washers may require increased temperature water. By setting the thermostat on this water heater to obtain t[...]

13 Gas Connections The gas supply lines must meet all requi rements of 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 minimum permissible gas supply pressure for the purpose of input adjustment is on[...]

14 Gas Conversion Instructions Unless specifically ordered for operation on natural gas, this water heater is normally equipped for operation on liquefied petroleum (LP) gas but may be converted by following these gas conversion instructions. Caution: Make sure gas to be supplied to this water heater follow ing the conversion matches the gas being [...]

15 Gas Conversion Instruc tions continued- 7. Replace the burner assembly, reconnect all fittings and check for leaks. Refer to “Gas Connections”, page 13. 8. Close and/or replace inner and outer doors. 9. To light pilot, follow the lighting instructions provided on the water heater and in this installation and operation instruction manual. 10.[...]

16 Gas Conversion Instruc tions continued- 7. Replace the burner assembly and reconnect all fittings and check for leaks. Refer to “Gas Connections”, page 13. 8. Close and/or replace inner and outer doors. Note: For closed combustion product, make sure screws are tight and seal is made around gas supply tube to burner. 9. To light pilot, follow[...]

17 General Operation continued- TO DRAIN THE WATER HEAT ER Should it become necessary to completely dr ain the w ater heater, make sure you follow the steps below: 1. Rotate the thermostat di al to the lowest position. 2. Rotate and partially depress gas control knob clockw ise to the “OFF” position. 3. Shut off the gas supply to the w ater hea[...]

18 Thermostat Adjustment Figure 5 The thermostat dial is set to its lowest te mperature setting when shipped from the factory. Remember that lower temperature settings are more energy efficient . Adjust the temperature by turning the thermostat dial. It is suggested t hat the starting point setting not be greater than the ” “ mark on the thermo[...]

19 General Operation continue d- Burner Flame Check Steel Burner: These models are equipped with self adjusting air mixture and do not have an adjustable air shutter (See Figure 7). At periodic intervals, a visual check of the main burner and pilo t flames should be made to determine if they are burning properly. The main bur ner flame should light[...]

20 Maintenance Continued- 2. The flow of combustion and ventilation air MUST NOT be restricted. Clear the combustion air openings of any di rt, dust, or other restrictions. 3. At all times keep the water heater area clear and free from combustible materials, gasoline and other flammable vapors and liquids. 4. Bi-annually conduct a visual check of t[...]

21 Maintenance Continued- 10. Who installed the water heater or the manufacturer listed on the rating plate for anode replacement information. The use of a water softener may increase the speed of consumption. More frequent inspection of the anode is needed when using softened (or phosphate treated) water. The vent system must be inspected at least[...]

22 TYPICAL INSTALLATION[...]

23 GAS FIRED MANUFACTURED HOME (MOBILE HOME) PARTS LIST PART NAME & DESCRIPTION 1. Gas Conversion Kit 12. Inner Door 2. Jacket Top 13. Thermostat w/ECO (Convertible- Nat. or L.P. Gas) 3. Fiberglass Insulation 14. Pilot Assembly 4. Glass Lined Tank 15. Gas Feed Line (Burner) 5. Tank Skirt Assembly 16. Main Burner Orifice 6. Jacket Base Assembly [...]

24 STEEL BURNER ASSEMBLY NOTE: part description, part number, model and serial number and gas type must be specified when ordering service parts ITEM NO. PART DESCRIPTION 14 Pilot Assembly 15 Gas Feedline (Main Burner) 16 * Orifice (Main Burner) 17 Steel Burner[...]