A.O. Smith DRE Page 28 Installation And Operation Manual Download | Manualshive

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28

McBee, South Carolina 29101

Phone: 1-800-527-1953 Fax: 800-433-2515

www.hotwater.com e-mail: [email protected]

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Summary of Contents for DRE

Page 1: ... READ THOROUGHLY BEFORE ATTEMPTING ANY CONVERSION PRINTED IN U S A 0906 PART NO 196674 001 A DIVISION OF A O SMITH CORPORATION MCBEE SOUTH CAROLINA www hotwater com Models DRE DVE 52 80 120 INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTY PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE ...

Page 2: ...ugh in Dimensions Model Number Tank Capacity in Gallons A B Inlet Outlet DRE DVE 52 50 55 1 4 21 3 4 1 1 4 DRE DVE 80 80 59 1 2 25 1 4 1 1 4 DRE DVE 120 119 62 1 4 29 1 2 1 1 4 Get to know your water heater ...

Page 3: ...90 100 110 120 130 140 DRE DVE 6 20 478 82 62 49 41 35 31 27 25 22 21 19 18 DRE DVE 9 30 717 123 92 74 62 53 46 41 37 34 31 28 26 DRE DVE 12 40 956 164 123 98 82 70 61 55 49 45 41 38 35 DRE DVE 13 5 46 075 184 138 111 92 79 69 62 55 50 46 43 40 DRE DVE 15 51 195 205 154 123 102 88 77 68 61 56 51 47 44 DRE DVE 18 61 434 246 184 148 123 105 92 82 74 67 61 57 53 DRE DVE 24 81 912 328 246 197 164 140 ...

Page 4: ...er faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system If hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPEN INSULATION BLANKETS Insulation blankets available to the ge...

Page 5: ...evices that activate based on the water pressure differential between the cold water and hot water pipes connected to the water heater Devices that will turn off the gas supply to a gas water heater while at the same time shutting off its water supply Locate the heater close to the point of major hot water usage and the power supply Try to make hot water piping and branch circuit wiring as short a...

Page 6: ...to operating the heater TEMPERATURE REGULATION DANGER THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE HOT WATER TEMPERATURES REQUIRED FOR AUTOMATIC DISHWASHERAND LAUNDRY USE CAN CAUSE SCALD BURNS RESULTING IN SERIOUS PERSONAL INJURY AND OR DEATH THE TEMPERATUREATWHICH INJURY OCCURS VARIES WITH THE PERSONS AGE AND TIME OF EXPOSURE THE SLOWER RESPONSE TIME OF...

Page 7: ... VALVE PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH ALL LOCAL CODES DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED ...

Page 8: ...ANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES ...

Page 9: ...ANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES ...

Page 10: ...PPLY HAS A BACK FLOW PREVENTER CHECK VALVE OR WATER METER WITH CHECK VALVE PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH ALL LOCAL CODES DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADE...

Page 11: ...ANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES ...

Page 12: ...ERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES INSERT B VACUUM RELIEF VALVE INSTALL PER LOCAL CODES ...

Page 13: ...ANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 6 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES ...

Page 14: ...rent version of NFPA 70 The National Electrical Code which may be ordered from National Fire Protection Association 1 Batterymarch Park Quincy MA 02269 WARNING AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF ELECTRIC SHOCK OR POSSIBLE ELECTROCUTION The water heater should be connected to a separate grounded branch circuit with overcurrent protection and disconnect switch The water heater should...

Page 15: ...HH MCM THWN RHH XHHW THHN MCM XHHW THHN USE XHHW USE ZW XHHW COPPER ALUMINUM OR COPPER CLAD ALUMINUM 18 21 16 22 22 14 15 15 25 25 12 20 20 30 30 15 15 25 25 12 10 30 30 40 40 25 25 30 30 10 8 40 45 50 50 30 40 40 40 8 6 55 65 70 70 40 50 55 55 6 4 70 85 90 90 55 65 70 70 4 3 80 100 105 105 65 75 80 80 3 2 115 120 120 75 90 95 95 2 1 130 140 140 100 110 110 1 0 150 155 155 120 125 125 0 00 175 185...

Page 16: ...ITS DVE MODELS The water heater s electrical components are pictured and identified on page 2 The model and rating plate illustration on page 4 identifies heater circuit ratings The DVE model has two electrical circuits The control circuit where the thermostat directly operates the contactor coils The power circuit which is operated by the control circuit carries the electrical load of the heating...

Page 17: ...17 DVE CONTROL CIRCUIT DIAGRAMS ...

Page 18: ... rated 600 volts 105 C Power circuit fusing consists of three 30 amp class G fuses for each contactor See wiring diagrams Do not substitute fuses of a different rating DVE POWER CIRCUIT DIAGRAMS THREE ELEMENTS SINGLE AND THREE PHASE SIX ELEMENTS SINGLE AND THREE PHASE ...

Page 19: ...ires to terminal L2 with red wires 4 Connect incoming power to terminals L1 and L2 CONVERSION TO THREE PHASE When heater is shipped for connection to a single phase electrical service it may be connected to a three phase electrical service of the same voltage by 1 Disconnect blue wires from terminal L1 2 Disconnect yellow wires from terminal L2 3 Reconnect all blue wires and yellow wires to termin...

Page 20: ...rams All heater circuits are designed for 60 50 hertz alternating current The DRE circuit wiring is 12 AWG AWM or TEW type rated 600 volts 105 C FUSING Fusing consists of two 30 amp class G fuses for each element See wiring diagrams Do not substitute fuses of a different rating DRE POWER CIRCUIT DIAGRAMS THREE ELEMENTS SINGLE AND THREE PHASE SIX ELEMENTS SINGLE AND THREE PHASE ...

Page 21: ...low wires to terminal L2 with red wires 4 Connect incoming power to terminals L1 and L2 CONVERSION TO THREE PHASE When heater is shipped for connection to a single phase electrical service it may be connected to a three phase electrical service of the same voltage by 1 Disconnect blue wires from terminal L1 2 Disconnect yellow wires from terminal L2 3 Reconnect all blue wires and yellow wires to t...

Page 22: ...a 30 F drop in water temperature DRAINING The water heater must be drained if it is to be shut down and exposed to freezing temperatures Maintenance and service procedures may also require draining the heater 1 Turn off the electrical disconnect switch 2 Close the supply water inlet valve to heater 3 Attach hose to outlet opening of drain valve and direct end to drain 4 Open a nearby hot water fau...

Page 23: ...ime scale accumulations may cause noises to occur during operation It is recommended that a heating element be removed periodically for examination If it is scaled all of the elements should be removed and cleaned If the tank bottom has an accumulation of sediment it should be cleaned Lime scale should be removed by dissolving the accumulation in UN LIME delimer UN LIME is a non muriatic delimer a...

Page 24: ...ctrical components of the water heater make sounds which are normal Contactors will click or snap as the heater starts and stops Transformers and contacts often hum Water leakage is suspected Refer to Leakage Checkpoint of following page 1 Check to see if the heater drain valve is tightly closed 2 If the outlet of the relief valve is leaking it may represent Excessive water temperature Faulty reli...

Page 25: ...minals or through flange Replace element 2 Loose element gasket leak Tighten element with element wrench If leak continues remove element and discard gasket Clean gasket seating areas and reinstall element with new gasket Condensation and dripping may appear on pipes when inlet water temperature is low Pipe fitting may be leaking All water which appears at the heater bottom or on the surrounding f...

Page 26: ...esponsible for all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstallation of the water heater or any component part b Shipping delivery handling and administrative charges for forwarding the new heater or replacement part from the nearest distributor and returning the claimed defective heater or part to such distributor c All cost nec...

Page 27: ...27 ...

Page 28: ...28 McBee South Carolina 29101 Phone 1 800 527 1953 Fax 800 433 2515 www hotwater com e mail parts hotwater com ...

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