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Instruction Manual
COMMERCIAL ELECTRIC WATER HEATERS
MODELS LTE 66D, LTE 80D & LTE 120D, Series 200
INSTALLATION - OPERATION - SERVICE
- MAINTENANCE - LIMITED WARRANTY
500 Tennessee Waltz Parkway
Ashland City, TN 37015
®
Thank you for buying this energy efficient water heater.
We appreciate your confidence in our products.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
PRINTED 0316
100270491
1
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Related Manuals for A.O. Smith LTE 66D
Summary of Contents for A.O. Smith LTE 66D
- Page 1 Instruction Manual COMMERCIAL ELECTRIC WATER HEATERS MODELS LTE 66D, LTE 80D & LTE 120D, Series 200 INSTALLATION - OPERATION - SERVICE - MAINTENANCE - LIMITED WARRANTY 500 Tennessee Waltz Parkway Ashland City, TN 37015 ® Thank you for buying this energy efficient water heater.
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Page 2: Safe Installation, Use, And Service
SAFE INSTALLATION, USE, AND SERVICE The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. -
Page 3: General Safety Information
GENERAL SAFETY INFORMATION PRECAUTIONS HYDROGEN GAS (FLAMMABLE) DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN EXPOSED TO FLOODING OR WATER DAMAGE. Immediately call a qualified service technician to inspect the water heater and to replace any part of the control system which has been under water. If the unit is exposed to the following, do not operate heater until all corrective steps have been made by a qualified service technician. -
Page 4: Table Of Contents
TABLE OF CONTENTS SAFE INSTALLATION, USE, AND SERVICE........2 ELECTRICAL ..................11 GENERAL SAFETY INFORMATION ............ 3 General ..................11 Precautions .................. 3 Branch Circuit ................11 Hydrogen Gas (Flammable) ............3 Calculating Amperage/Overcurrent Protection ......11 INTRODUCTION .................. 4 WIRING DIAGRAMS ................12 Preparing for the Installation ............ -
Page 5: Dimensions And Capacities Data
DIMENSIONS AND CAPACITIES DATA ANODE CONNECTION COLD 8" CONNECTION FIGURE 1 TABLE 1 - ROUGH-IN DIMENSIONS Approx. Capacity Shipping Weight US Gals. Litres Inches Inches Inches Lbs. 60.13 52.75 66.22 60.50 52.25 78.93 61.38 54.38 121.56 TABLE 2 - RECOVERY CAPACITIES U.S. -
Page 6: Approvals
APPROVALS ® All models are listed by Underwriters Laboratories Inc. MODEL AND RATING COMMERCIAL STORAGE TANK WATER HEATER 22U1 MODEL NUMBER SERIAL NUMBER ITEM ID / PART NUMBER WATTS WATTS MAX WORKING VOLTS - AC PHASE UPPER LOWER CIRCUIT PRESSURE PSI TOTAL WATTS CONNECTED INTERLOCK SIMULTANEOUS... -
Page 7: Features And Components
FEATURES AND COMPONENTS ANODE COLD ELECTRICAL JUNCTION BOX (ACCESS PANEL) ACCESS PANELS DRAIN VALVE INSTALL SUITABLE DRAIN PANS UNDER WATER HEATERS TO PREVENT DAMAGE DUE TO LEAKAGE. REFER TO WATER HEATER LOCATION ON PAGE 8. I N S TA L L T H E R M A L INSTALL VACUUM RELIEF E X PA N S I O N TA N K IN COLD WATER INLET... -
Page 8: Locating The New Water Heater
Drain pans suitable for these water heaters are available from Adequate clearance for servicing this water heater should your distributor or A.O. Smith Water Heater Parts Fulfillment, be considered before installation, such as changing the 125 Southeast Parkway, Franklin, TN 37068. -
Page 9: Installation
INSTALLATION REQUIRED ABILITY CONTAMINATED WATER Installation and service of this water heater requires ability equivalent This water heater shall not be connected to any heating system(s) to that of a qualified installer or service agency (page 2) in the or component(s) used with a non-potable water heating appliance. field involved. -
Page 10: Closed Water Systems
paragraph. The new valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 psi = 1,035 kPa) and a discharge capacity not less than the water heater Btu/hr or KW input rate as shown on the water heater’s model rating plate. -
Page 11: Electrical
ELECTRICAL This is an example of calculating heater amperage for both types of element operation. From this, the branch circuit conductor and overcurrent protection sizing can be established. The example (T-4) is of a single-phase 240 volt unit with two, 3 kw elements. -
Page 12: Wiring Diagrams
WIRING DIAGRAMS 208 or 240 VOLT 208 or 240 VOLT SIMULTANEOUS OPERATION NON-SIMULTANEOUS SINGLE PHASE OPERATION SINGLE PHASE OPERATION SUPPLY LEADS SUPPLY LEADS GREEN GREEN FIGURE 3... -
Page 13: Operation
OPERATION GENERAL INITIAL START UP The following checks should be made by the installer when the heater Refer to the Features and Components section of this manual (page is placed into operation for the first time. 7) for the location of components mentioned in the instructions that follow. -
Page 14: Temperature Regulation
TEMPERATURE REGULATION T-4 THERMOSTAT T-6 THERMOSTAT T-6 THERMOSTAT (UPPER & LOWER) (UPPER) (LOWER) FIGURE 5 THE WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT WATER AT TEMPERATURES DESIRED FOR AUTOMATIC NOTE: It is not necessary to adjust the upper thermostat for a dual DISHWASHER AND LAUNDRY USE CAN CAUSE SCALDS element unit. -
Page 15: Maintenance
MAINTENANCE GENERAL ANODE ROD INSPECTION The anode rod is used to protect the tank from corrosion. Most hot water tanks are equipped with an anode rod. The submerged rod sacrifices itself to protect the tank. Instead of corroding tank, water ions attack and eat away the anode rod. -
Page 16: Troubleshooting Checklist
TROUBLESHOOTING CHECKLIST CHECKLIST ABNORMAL SOUNDS Before calling for service, check the following points to see if the 1. Sediment or lime scale accumulations on the elements causes cause of trouble can be identified and corrected. sizzling and hissing noises when the heater is operating. •... -
Page 17: 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. Relief Valve Where possible remove or lift top cover to To Open Drain examine threads of fittings installed into tank for evidence of leakage. -
Page 18: Warranty
WARRANTY COMMERCIAL WATER HEATER LIMITED WARRANTY EFFECTIVE WHAT'S NOT COVERED For 3 Years, in the event of a tank leak, we will repair or, at our • Problems caused by improper: gas supply line sizing, gas type, discretion, replace the defective water heater. venting, connections, combustion air, voltage, wiring, or fusing For 1 Year, •... -
Page 19: Repair Parts List
REPAIR PARTS LIST Now that you have purchased this water heater, should a need ever Be sure to provide all pertinent facts when you call or visit. exist for repair parts or service, simply contact the company it was WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE purchased from or direct from the manufacturer listed on the rating FOLLOWING INFORMATION: plate on the water heater. - Page 20 FIGURE 8 TABLE 6 - COPPER SHEATH ELEMENT AND WATTAGE CHART 208V 240V K.W. ELEMENT WATTAGE PART NO. PART NO. 3000 9003956115 9001879005 3500 9000092015 9003948115 4000 9003951115 9003956115 4500 9002645005 9000092015 5000 9004688105 9003957005 5500 9003951115...
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Page 21: Notes
NOTES... - Page 22 NOTES...
- Page 23 NOTES...
- Page 24 www.hotwater.com 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Tech Support: 800-527-1953 Parts: 800-433-2545 Copyright © 2016 A. O. Smith Water Heater Company, All rights reserved.