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MODELS DEN AND DEL
COMMERCIAL ELECTRIC WATER HEATERS
• Installation • Electrical • Wiring Diagrams • Replacement Parts
• Operation • Maintenance • Leakage Checkpoints • Limited Warranty
A DIVISION OF A. O. SMITH CORPORATION
McBee, South Carolina, USA
www.hotwater.com
CAUTION
TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTUR
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ROUGH-IN DIMENSIONS ROUGH-IN DIMENSIONS Approx. Models No. of Tank Capacity A B C D Shipping Weight. Dimensions Elements US Gals. Litres inches mm inches mm inches mm inches mm Lbs. Kg. DEL-6 1 6 23 15 1/2 394 14 1/4 362 11 279 - - 35 15.9 DEL-10 1 10 38 18 1/4 464 18 457 12 1/2 318 - - 54 24.5 DEL-15 1 15 57 26 660 18 457 20 1/2 521 - - 58 26.3 DEL-20 1 20 76 22 1/4 565 21 3/4 552 15 3/8 391 - - 73 3
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reduce the risk of injury under these conditions, it is recommended FOREWORD that the hot water faucet be opened for several minutes at a nearby Thank you for buying this energy efficient water heater from kitchen sink before using any electrical appliance connected to State. We appreciate your confidence in our products. Detailed the hot water system. If hydrogen is present, there will probably installation diagrams are in this manual. These diagrams will be an unusual sound such as air es
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• Sensors mounted in the drain pan that turn off the water supply CALCULATING to the entire home when water is detected in the drain pan. AMPERAGE/OVERCURRENT PROTECTION • Water supply shut-off devices that activate based on the water pressure differential between the cold water and how water The heaters come from the factory in two configurations: pipes connected to the water heater. 1. Two wire C-2 circuit for single element heater equipped with a high limit control, single phase power input.
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For ambient temperatures over 30° C (86° F), see Correction Not more than three conductors in Raceway or Cable or Direct Factors, Note 13 in Code. Burial (Based on Ambient Temperature of 30° C, 86° F. These ampacities relate only to conductors described in Table 310-13 Size Temperature Rating of Conductor in Code. See Table 310-13 in Code AMG 60° C 75° C For ambient temperatures over 30° C (86° F), see Correction MCM (140° F) (167° F) Factors, Note 13 in Code. TYPES: TYPES: RUW RH, RHW, RUH,
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TYPICAL PIPING CONNECTIONS This page shows typical water heater installations by model designations. DUAL ELEMENTS HEATER SINGLE ELEMENT HEATER INSTALL SUITABLE DRAIN PANS UNDER HEATERS TO PREVENT DAMAGE DUE TO LEAKAGE. REFER TO WATER HEATER LOCATION ON PAGE 2. INSTALL THERMAL INSTALL VACUUM RELIEF EXPANSION TANK IF IN COLD WATER INLET CHECK VALVE OR LINE AS REQUIRED BY PRESSURE REDUCING LOCAL CODES. VALVE IS USED IN † OVER CURRENT PROTECTION MUST BE SUPPLIED IN WATER HEATER CIRCUIT. SUPPLY LINE
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Figure 3 shows the approximate time-to-burn relationship for OPERATION normal adult skin. The thermostats on your water heater have a linear relationship between degrees of angular rotation and the CAUTION corresponding change in temperature. Thus rotating the DO NOT OPERATE THE HEATER WITHOUT INSTALLING AN temperature adjustment indicator 30 angular degrees will result APPROVED TEMPERATURE AND PRESSURE RELIEF VALVE in a 10 degree Fahrenheit change in water temperature. IN THE OPENING PROVIDE
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3. Using a flat tip screwdriver, rotate the adjusting knob to the Once a month the temperature and pressure relief valve should desired temperature setting. be checked to ensure that it is in operating condition. Lift the lever on the valve several times until the valve seats properly and 4. Replace the covers and access panels, and turn on heater operates freely. electrical supply. CAUTION Valves for reducing point-of-use temperature by mixing cold and THE WATER PASSING OUT OF THE VALVE DURI
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6. Look for leaking or open hot water faucets. valve in the inlet system will not permit the expanded hot water volume to equalize pressure with the main. A relief valve must WATER IS TOO HOT release this water or the water heater or plumbing system will be damaged. 1. Refer to TEMPERATURE REGULATION section. When such a condition is encountered, local codes or inspection WATER HEATER MAKES SOUNDS agency should be consulted to determine which system is acceptable in your area. These may consi
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LEAKAGE CHECKPOINTS Instructions: Use this illustration as a guide when checking for sources of water leakage. You or your dealer may be able to correct what appears to be a problem. NOTE: Cover and Insulation shown removed to reveal tank top Relief Valve Where possible remove or lift top cover to To Open Drain examine threads of fittings installed into tank for evidence of leakage. Correct fitting leaks as necessary. Condensation and dripping may appear Water leaks at the elements on pipes
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MODELS DEN AND DEL ELECTRIC WATER HEATER LIMITED WARRANTY A. 0. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater: 1. THE TANK If the glass-Iined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new A. 0. Smith water heater of equivalent size and current mod
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REPAIR PARTS LIST Now that you have purchased this water heater, should a need Be sure to provide all pertinent facts when you call or visit. ever exist for repair parts or service, simply contact the company it was purchased from or direct from the manufacturer listed on WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE the rating plate on the water heater. FOLLOWING INFORMATION: Selling prices will be furnished on request or parts will be • MODEL NUMBER shipped at prevailing prices and you will be
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Item Description DEL-6 DEL-10 DEL-15 DEL-20 Series 102 Series 102 Series 102 Series 102 1A ......... Anode, Alum... ....................................... 9003942 .............. 9003942 .............. 9003943 ............... 9003944 1B ......... Anode, Mag. (SMR P72 and S19) .......... 9002110................ 9002110 .............. 9004302 ............... 9003721 2 ........... Collar, Pipe ............................................ 9004610 .............. 9004610 .............. 9004610 .......
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Item Description DEL-30 DEL-40 DEL-50 DEN-30 Series 110 Series 110 Series 110 Series 110 1A ......... Anode, Alum. .................................... 9003888 ................ 9003889 ................ 9003889 ...............9003944...... 1B ......... Anode, Mag.(SMR P72) .................... 9003721 ................ 9003922 ................ 9001834 ...............9003721...... 2 ........... T&P Relief Valve ............................... 9003741 ................ 9003741 ................ 900374
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DEN-40 DEN-52 DEN-66 DEN-80 DEN-120 Series 110 Series 110 Series 110 Series 110 Series 110 .... 9003889 .......................... 9003889 ..........................9000029......................... 9003892 ....................... 9003893 .... 9003483 .......................... 9003487 ..........................9003465......................... 9003650 ....................... 9000734 .... 9000071 .......................... 9000071 ..........................9000071..................
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McBee, South Carolina 29101 Phone: 1-800-527-1953 Fax: 800-433-2515 www.hotwater.com e-mail: parts@hotwater.com 16
