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MODELS DEN AND DEL
COMMERCIAL ELECTRIC WATER HEATERS
Installation
•
•
Operation
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 FUTURE REFERENCE.
Printed in U.S.A. 0704
Electrical
•
•
Maintenance
A DIVISION OF A. O. SMITH CORPORATION
McBee, South Carolina, USA
www.hotwater.com
Wiring Diagrams
•
•
Leakage Checkpoints
CAUTION
1
Replacement Parts
•
•
Limited Warranty
PART NO. 195201-000
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Summary of Contents for A.O. Smith DEL
- Page 1 MODELS DEN AND DEL COMMERCIAL ELECTRIC WATER HEATERS Installation Electrical • • • Operation • Maintenance 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 FUTURE REFERENCE.
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Page 2: Rough-In Dimensions
F° 36F° 40F° 54F° 60F° 72F° C° 20C° 22.2C° 30C° 33.3C° 40C° * NO SIDE OUTLET AVAILABLE FOR DEL 6 MODELS Approx. Shipping Weight. inches inches Lbs. 12 1/2 20 1/2 15 3/8 24 1/8 25 9/16 25 1/8 80F°... -
Page 3: General Safety Instructions
Insulation blankets available to the general public for external use on electric water heaters are not approved for use on your A.O. Smith water heater. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters. -
Page 4: Chemical Vapor Corrosion
CLEARANCES A minimum clearance of 4” must be allowed for access to replaceable parts such as the thermostats, drain valve and relief valve. Adequate clearance for servicing this appliance should be considered before installation, such as changing the anodes, etc. FLOOD WARNING IF THE HEATER BECOMES IMMERSED IN WATER UP TO OR ABOVE THE LEVEL OF THE BOTTOM OF THE ELEMENT... -
Page 5: Wiring Diagrams
For ambient temperatures over 30° C (86° F), see Correction Factors, Note 13 in Code. Size Temperature Rating of Conductor See Table 310-13 in Code 60° C (140° F) TYPES: (14-2), T, TW, - - - - - - Portion of Table 310-18 follows: Allowable Ampacities of Insulated Aluminum and Copper -Clad Aluminum Conductors. -
Page 6: Temperature And Pressure Relief Valve
TYPICAL PIPING CONNECTIONS This page shows typical water heater installations by model designations. DUAL ELEMENTS HEATER INSTALL SUITABLE DRAIN PANS UNDER HEATERS TO PREVENT DAMAGE DUE TO LEAKAGE. REFER TO WATER HEATER LOCATION ON PAGE 2. INSTALL THERMAL EXPANSION TANK IF CHECK VALVE PRESSURE REDUCING... -
Page 7: Operation
OPERATION CAUTION DO NOT OPERATE THE HEATER WITHOUT INSTALLING AN APPROVED TEMPERATURE AND PRESSURE RELIEF VALVE IN THE OPENING PROVIDED IN THE TANK. GROUND THE HEATER TO GUARD AGAINST ELECTRIC SHOCK FROM THE HEATER OR WATER SYSTEM. NEVER OPERATE THE HEATER WITHOUT FILLING WITH WATER PER THE FILLING INSTRUCTIONS. -
Page 8: Troubleshooting
3. Using a flat tip screwdriver, rotate the adjusting knob to the desired temperature setting. 4. Replace the covers and access panels, and turn on heater electrical supply. Valves for reducing point-of-use temperature by mixing cold and hot water are available (See Figure 5). Also available are inexpensive devices that attach to faucets to limit hot water temperatures. -
Page 9: Water Is Too Hot
service, contact your dealer or utility company. Refer to TEMPERATURE REGULATION section. 4. The storage capacity of the heater may have been exceeded by large demands of hot water. 5. If the heater was installed when incoming water temperatures were warm, colder incoming temperatures will create the effect of less hot water. -
Page 10: Leakage Checkpoints
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 Where possible remove or lift top cover to examine threads of fittings installed into tank for evidence of leakage. - Page 11 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.
- Page 12 5621 W. 115TH STREET, ALSIP, IL 60803 Phone: 800-433-2545 Fax: 800-433-2515 www.hotwater.com e-mail: parts@hotwater.com...