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Instruction Manual

PRINTED 1213 

322055-002

place these InstructIons adjacent to heater and notIfy owner to keep for future reference.

coMMercIal electrIc water heaters 

Thank you for buying this energy efficient water heater. 
We appreciate your confidence in our products.

Models del-6/10/15/20 series 102

del-30/40/50 series 110

& den-30/40/52/66/80/120 series 110

InstallatIon - operatIon - serVIce  

- MaIntenance - lIMIted warranty

500 Tennessee Waltz Parkway

Ashland City, TN 37015

Summary of Contents for DEL-6

Page 1: ...COMMERCIAL ELECTRIC WATER HEATERS Thank you for buying this energy efficient water heater We appreciate your confidence in our products MODELS DEL 6 10 15 20 Series 102 DEL 30 40 50 Series 110 DEN 30 40 52 66 80 120 Series 110 INSTALLATION OPERATION SERVICE MAINTENANCE LIMITED WARRANTY 500 Tennessee Waltz Parkway Ashland City TN 37015 ...

Page 2: ...on testing or replacement of gas piping or b the connection installation testing repair or servicing of appliances and equipment that is experienced in such work that is familiar with all precautions required and that has complied with all the requirements of the authority having jurisdiction DANGER WARNING CAUTION DANGERindicatesanimminentlyhazardous situation which if not avoided will result in ...

Page 3: ...ly may also cause erratic control system operation on ELECTRONIC CONTROL models This water heater must be connected to a grounded metal permanent wiring system or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal or lead on the water heater Hydrogen Gas Flammable Hydrogen gas can be produced in a hot water system served by th...

Page 4: ...e National Electrical Code may be ordered from National Fire Protection Association 1 Batterymarch Park Quincy MA 02269 The Canadian Electrical Code is available from the Canadian StandardsAssociation 8501 East Pleasant Valley Road Cleveland OH 44131 3 If after reading this manual you have any questions or do not understand any portion of the instructions call the toll free number listed on the ba...

Page 5: ...6 230 192 173 153 138 128 115 110 5000 5000 GPH 113 101 75 68 56 51 45 41 38 34 32 10 LPH 426 384 284 256 213 192 170 153 142 128 122 6000 6000 GPH 135 122 90 81 68 61 54 49 45 41 39 12 LPH 511 460 341 307 256 230 205 184 170 153 146 Recovery capacities at 100 F rise equal for non simultaneous element operation 4 1 gal x KW of one element for simultaneous element operation 4 1 gal x 2 3 KW of both...

Page 6: ...6 APPROVALS model and rating DEL 30 40 50 DEN 30 40 52 66 80 120 DEL 6 10 15 20 All models are listed by Underwriters Laboratories Inc ...

Page 7: ... 1984 FOR PROPER INSTALLATION INSTALL IN ACCORDANCE WITH ALL LOCAL CODES INSTALL VACUUM RELIEF IN COLD WATER INLET LINE AS REQUIRED BY LOCAL CODES INSTALL SUITABLE DRAIN PANS UNDER WATER HEATERS TO PREVENT DAMAGE DUE TO LEAKAGE REFER TO WATER HEATER LOCATION ON page 8 INSTALL THERMAL E X PANS I ON TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY LINE DEN DEL DUAL ELEMENT HEATER DEN...

Page 8: ...OCATING THE NEW WATER HEATER to a drain However unanticipated damage can be reduced or prevented by a leak detector or water shut off device used in conjunction with a piped drain pan These devices are available from some plumbing supply wholesalers and retailers and detect and react to leakage in various ways Sensors mounted in the drain pan that trigger an alarm or turn off the incoming water to...

Page 9: ...ximum of 125 degree F Consult a qualified installer or service agency Follow all manufacturer s Instructions for installation of these valves Before changing the factory setting on the thermostat read the Temperature Regulation section in this manual Contaminated Water This water heater shall not be connected to any heating system s or component s used with a non potable water heating appliance To...

Page 10: ...d at an adequate drain inside the building Shall not have any valve or other obstruction between the relief valve and the drain The temperature pressure relief valve must be manually operated at least once a year Caution should be taken to ensure that 1 no one is in front of or around the outlet of the temperature pressure relief valve discharge line and 2 the water manually discharged can cause b...

Page 11: ...e on J terminal to L1 It is then possible for both elements to operate at once as determined by the thermostats Regardless of element connection the heater operates in an unbalanced fashion The heater may be field converted to single phase operation by moving the wire on L3 of the terminal block to L2 L3 is not used see page 12 The heater now in single phase non simultaneous operation may be field...

Page 12: ...12 Figure 3 WIRING DIAGRAMS C 2 CIRCUIT FOR SINGLE ELEMENT HEATERS EQUIPPED WITH HIGH LIMIT CONTROL A 8 CIRCUIT FOR DUAL ELEMENT HEATER FACTORY WIRED FIELD WIRING WHITE FOR 120V 277V ...

Page 13: ...Also check connections on top and or sides of heater Repair water leaks and tighten electrical connections as necessary 3 Depress the red manual reset button on each Thermostat ECO combination control See Figure 5 Figure 6 Figure 7 or Figure 8 4 Turn on the electrical disconnect switch 5 Observe the operation of the electrical components during the first heating cycle Use care as the electrical ci...

Page 14: ... MED and HI See Figure 5 The approximate equivalent temperatures for these three settings are LO 140 F 60 C MED 160 F 71 C and HI 180 F 82 C These thermostats are set from the factory at the LO 140 F 60 C setting The over temperature device ECO high limit attached to each thermostat has a manual reset The C 2 circuit thermostat is adjustable from approximately 130 F 54 C to 170 F 77 C See Figure 6...

Page 15: ...ay the anode rod This does not affect water s taste or color The rod must be maintained to keep tank in operating condition Anode deterioration depends on water conductivity not necessarily water condition A corroded or pitted anode rod indicates high water conductivity and should be checked and or replaced more often than an anode rod that appears to be intact Replacement of a depleted anode rod ...

Page 16: ...rating The sounds are normal however the tank bottom and elements should be cleaned See the Maintenance section of this manual Water leakage is suspected Refer to Leakage Checkpoint on the following page 17 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 relief valve Excessive water pressu...

Page 17: ...sary to shut off electricity and drain tank to perform procedure Water leaks at the elements may be due to 1 Defective element which leaks at terminals or thru flange Replace element 2 Loose element gasket leak a Screw in type tighten with 1 1 2 socket wrench If leak continues remove element discard gasket and clean thread areas Apply nonhardening Permatex Number 2 to thread areas install new gask...

Page 18: ...heater or part thereof The owner is responsible 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 pa...

Page 19: ...19 nOTES ...

Page 20: ...ts will be shipped at prevailing prices and you will be billed accordingly The model number of your Water Heater will be found on the rating plated located above the lower access panel Be sure to provide all pertinent facts when you call or visit WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION MODEL NUMBER VOLTAGE AND ELEMENT WATTAGE SERIAL NUMBER PART DESCRIPTION Del 6 10 15 20 S...

Page 21: ...Instruction Manual 322055 0 322055 0 322055 0 322055 0 10 Personnel Protector 9003914015 9003914015 9003914015 9003914015 11 Pipe Nipple 194130 194130 3 194130 3 194130 3 12 Plate Knockout 43293 1 43293 1 43293 1 43293 1 PLUG 15 16 Thermostat with High Limit Switch 9006586015 9006586015 9006586015 9006586015 17 Bracket Thermostat 9003898015 9003898015 9003898015 9003898015 18 Valve Relief 90034840...

Page 22: ...02857015 9002857015 9002857015 9002857015 9002857015 9002857015 9002857015 7 Thermostat Bracket each 9003898215 9003898215 9003898215 9003898215 9003898215 9003898215 9003898215 9003898215 9003898215 8 Personal Protector 9003914015 9003914015 9003914015 9003914015 9003914015 9003914015 9003914015 9003914015 9003914015 9 Lower Access Panel 9003900005 9003900005 9003900005 9003900005 9003900005 9003...

Page 23: ...74005 9002875005 Table 7 Incoloy Sheath Element and Wattage Chart for SMR P72 K W ELEMENT WATTAGE 120 V 208 V 240 V 277 V 480 V PART NO PART NO PART NO PART NO PART NO 1 5 1500 W 9004279005 9004283005 9004290005 9004736105 Not Available 2 0 2000 W 9004280005 9004284005 9004283005 9004290005 9004298005 2 5 2500 W 9004281005 9004285005 9004291005 9004295005 9004299005 INCOLOY ELEMENTS BELOW THIS LIN...

Page 24: ...24 www hotwater com 500 Tennessee Waltz Parkway Ashland City TN 37015 Tech Support 800 527 1953 Parts 800 433 2545 Copyright 2012 A O Smith Water Heater Company All rights reserved ...

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