Bradford White DW280L Скачать руководство пользователя страница 33

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Trouble Shooting Guide continued-

PROBLEM CAUSE

SOLUTION

Insufficient hot
water

Thermostat setting
too low

Adjust thermostat to higher
setting. See Section VII

Undersized boiler
with no priority to
domestic hot water

Rewire for priority

Peak use of hot
water is greater than
tank storage
capacity

Determine peak usage and
compare to tank capacity

Faulty tank
thermostat

Replace thermostat

Boiler cycles
more than 5
times per day in
summer

Excessive demand

Reduce demand or consider
larger tank

Faulty thermostat

Replace thermostat

Boiler high limit set
too low

Increase boiler high limit
setting

Содержание DW280L

Страница 1: ...ION OPERATING MANUAL WITH PARTS LISTING AND TROUBLESHOOTING GUIDE For your family s comfort safety and convenience we recommend this water heater be installed and serviced by a plumbing professional W...

Страница 2: ...water heater We require that you carefully read this manual as well as the enclosed warranty and refer to it if questions arise If you have any specific questions concerning your warranty please cons...

Страница 3: ...er heater meets or exceeds the ASHRAE IES 90 1b standards with respect to insulation and standby loss requirements TABLE OF CONTENTS I IMPORTANT INFORMATION 4 II SPECIFICATIONS 8 III GENERAL INFORMATI...

Страница 4: ...l regulations The following terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning product life DANGER Indica...

Страница 5: ...und level will serve as pockets for accumulation of leaking gas This water heater is supplied with an adjustable thermostat to control water temperature Hot water temperatures required for automatic d...

Страница 6: ...heater contains components that become very hot Do not touch any components unless they are cool Improper installation adjustments alteration service or maintenance can cause property damage personal...

Страница 7: ...eater without first being certain it is filled with water Flammable items pressurized containers or any other potential fire hazardous articles must never be placed on or adjacent to the heater Contai...

Страница 8: ...Gal 22 46 1 4 40 1 8 47 5 3 8 27 1 2 65 Gal 22 59 1 4 53 1 8 60 5 3 8 27 1 2 80 Gal 24 59 52 7 8 59 3 4 5 3 8 27 1 2 DRAIN COUPLING 3 4 NPT DRAIN VALVE 5 8 NH TO BOILER RETURN 3 4 NPT THERMOSTAT UNDE...

Страница 9: ...0 9 65 000 8 0 65 Gal 148 98 0 7 65 000 8 0 80 Gal 158 98 0 6 65 000 8 0 NOTE These certified ratings were obtained with a heat source output and flow rate as specified in Table 3 and a 180 F boiler w...

Страница 10: ...e may occur Hot water availability is based on drawing 80 of the heated tank volume at 4 gallons per minute flow rate The maximum heat transfer through the coil heat input of the water heater at 240 F...

Страница 11: ...ting plate for additional guidance This indirect fired water heater is appropriate for all potable heating systems even where a single wall exchanger is not approved by the authority having jurisdicti...

Страница 12: ...perature and pressure relief valve must be marked with a maximum set pressure not to exceed the maximum working pressure of the water heater The combination temperature and pressure relief valve must...

Страница 13: ...listed on the rating plate for anode replacement information WARNING Install a discharge line so that water discharged from the temperature and pressure relief valve will exit within six 6 inches abov...

Страница 14: ...N SIZING 1 Boiler DOE Heating Capacity The indirect fired water heater will provide the rated performance only if used in conjunction with a heat source with a DOE heating capacity Heat Output at leas...

Страница 15: ...ate at the combined pressure drop SYSTEM ZONE CONTROL The indirect fired water heater must be installed as a zone separate from the space heating system The domestic hot water zone s piping and circul...

Страница 16: ...ry of domestic hot water can be reduced during simultaneous space and domestic hot water heating operations depending on such factors as boiler output boiler over sizing number of space heating zones...

Страница 17: ...Additional Recommended Components 1 Shut off Valves Allows isolation of water heater from domestic water system and or boiler system during service 2 Unions Allows water heater movement during servic...

Страница 18: ...SSIVE TEMPERATURE AND PRESSURES Hydrogen gas can be produced in an operating water heater that has not had water drawn from the tank for a long period of time HYDROGEN GAS IS EXTREMELY FLAMMABLE To pr...

Страница 19: ...tem such as one having a back flow preventer in the cold water supply provisions must be made to control thermal expansion DO NOT operate this water heater in a closed system without provisions for co...

Страница 20: ...piping The use of a union and a shut off valve is recommended The use of a flow control or check valve is required to prevent back flow through the water heater during operation of the space heating...

Страница 21: ...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 convenienc...

Страница 22: ...pical steam boiler without connections available below the water line is not recommended due to insufficient water temperature especially during warmer months when the space heating system is not oper...

Страница 23: ...erature Turn off all power related to the boiler and heating system before proceeding with the electrical connections DANGER Positively assure all electrical connections are unpowered before attemptin...

Страница 24: ...flow from the water heater to the boiler a zone relay is required between the water heater thermostat and the boiler Connect the white wire on the water heater to one leg of the circulator The second...

Страница 25: ...The secondary side of the transformer is to be connected to the zone valve coil The contact side of the zone valve is to be connected to the boiler operating control Connect the black wire on the wat...

Страница 26: ...er priority only Normally closed contacts close returning boiler control to space heating WARNING Water heaters are heat producing appliances To avoid damage or injury there must be no materials store...

Страница 27: ...al for scald injury To protect against injury you should install an ASSE approved mixing valve a device to limit the temperature of water to protect against scald injury via mixing hot and cold water...

Страница 28: ...ergy efficient Rotate the temperature dial clockwise to increase water temperature Rotate the thermostat dial counter clockwise to decrease the temperature setting Replace the insulation making sure t...

Страница 29: ...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 foll...

Страница 30: ...de Inspection and Replacement This water heater is equipped with multiple sacrificial anodes Anodes protect the glass lined tank from corrosion by sacrificing themselves through electrolysis When the...

Страница 31: ...r sealant when reinstalling the anode f Close the drain valve Open a hot water fixture to allow air to escape Open the cold water supply to the heater and allow the tank to fill g Check your anode and...

Страница 32: ...riate setting See Section VII Zone valve does not open if used Check power supply Replace as necessary Electrical problem relay wiring etc Check fuse and replace Check circuit breaker and reset if app...

Страница 33: ...domestic hot water Rewire for priority Peak use of hot water is greater than tank storage capacity Determine peak usage and compare to tank capacity Faulty tank thermostat Replace thermostat Boiler c...

Страница 34: ...Outlet Cover 8 T P Relief Valve 2 Conduit Grounding Cover 9 Heat Exchanger Escutcheon 3 Outlet Anode Device 10 Thermostat Bracket 4 Hole Closure 11 Access Cover 5 Hex Head Anode 12 Drain Valve 6 Inlet...

Страница 35: ...ress Supplier Supplier Phone No Manufactured under one or more of the following U S Patents 5 277 171 5 341 770 5 372 185 5 485 879 5 574 822 5 596 952 5 660 165 5 682 666 5 761 379 5 943 984 5 954 49...

Страница 36: ...36 NOTES...

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