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PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE 

ADJUSTMENT OR SERVICE IS REQUIRED.

100357051_2000605443B

PRINTED 0322

Instruction Manual

COMMERCIAL LIGHT DUTY ELECTRIC WATER HEATERS

Compact 6/10/15/20 Models

Lowboy 30/40/50 Models

Tall 30/40/52 Models

INSTALLATION - OPERATION  - SERVICE - MAINTENANCE

   

 

       

LOW LEAD

CONTENT

Thank you for buying this energy efficient water heater. We 

appreciate your confidence in our products.

 

   

Read and understand this instruction

manual and the safety messages

herein before installing, operating or

servicing this water heater.
Failure to follow these instructions and

safety messages could result in death

or serious injury.
This manual must remain with the

water heater.

If the water heater becomes immersed 

in water up to or above the level of the 

bottom of the element doors, the 

heater should be examined by a 

qualified service agency before it is 

placed in operation.

Electrical Shock Hazard

Printed on 7/25/2022 7:17 AM CT

Summary of Contents for Compact 10

Page 1: ...Thank you for buying this energy efficient water heater We appreciate your confidence in our products Read and understand this instruction manual and the safety messages herein before installing oper...

Page 2: ...equired Ability 12 General 12 Contaminated Water 12 Circulating Pump 12 Insulation Blankets 12 Temperature Pressure Relief Valve 12 Closed Water Systems 13 Thermal Expansion 13 Electrical 13 START UP...

Page 3: ...is manual near the water heater WARNING indicates a potentially hazardous situation which if not avoided could result in injury or death CAUTION indicates a potentially hazardous situation which if no...

Page 4: ...ank temperature to a higher setting without increasing risk of scalds A higher temperature setting allows the tank to provide much more hot water and can help provide proper water temperatures for app...

Page 5: ...bathing or shower ing Temperature limiting devices such as thermostatic point of use mixing valves must be installed when required by codes and to ensure safe temperatures at fixtures Explosion Hazar...

Page 6: ...azard Hot water discharge Keep clear of Temperature Pressure Relief Valve discharge outlet Avoid damage Property Damage Hazard Inspection and replacement of anode rod required Printed on 7 25 2022 7 1...

Page 7: ...ing in water When replacing fuses always use the correct size for the circuit See Wiring Diagram page 23 The model and rating plate on page 9 interprets certain markings into useful information Both o...

Page 8: ...kage See Locating the Water Heater page 10 Install thermal expansion tank if check valve or pressure re ducing valve is used in supply line Install vacuum relief in cold water inlet line as required b...

Page 9: ...OUS OPERATION 3000 3000 GPH 68 61 45 41 34 30 27 24 23 20 19 6 LPH 256 230 170 153 128 115 102 92 85 77 73 4000 4000 GPH 90 81 60 54 45 41 36 32 30 27 26 8 LPH 341 307 227 205 170 153 136 123 114 102...

Page 10: ...5 Lowboy 40 2 38 144 32 00 813 23 00 584 24 00 610 8 00 203 118 53 5 Lowboy 50 2 51 193 36 00 914 26 50 673 25 00 635 8 00 203 172 78 0 Tall 30 2 40 151 49 75 1264 20 50 521 53 25 1353 8 00 203 118 53...

Page 11: ...the drain pan that turn off the water supply to the entire home when water is detected in the drain pan Water supply shut off devices that activate based on the water pressure differential between the...

Page 12: ...means such as a MIXING VALVE should be used at the hot water taps used by these people or at the water heater MIXING VALVES for reducing point of use temperature are available and are to be set at a...

Page 13: ...installed when required by codes and to ensure safe temperatures at fixtures The temperature pressure relief valve must be manually operated at least once a year Caution should be taken to ensure tha...

Page 14: ...terminal block to L2 L3 is not used See Wiring Diagram page 23 The heater now in single phase non simultaneous operation may be field converted to single phase simultaneous operation by moving the re...

Page 15: ...ater inlet pipe valve allowing the heater and piping to be filled 5 Close the hot water faucet as water starts to flow The heater is now ready for STARTUP and TEMPERATURE REGULATION INITIAL START UP T...

Page 16: ...relationship for normal adult skin The thermostats on your water heater have a linear relationship between degrees of angular rotation and the corresponding change in temperature Thus rotating the te...

Page 17: ...e junction box door for upper thermostat of dual element water heater only and or remove the lower thermostat access panel Do not remove the plastic personnel protectors covering the thermostats The t...

Page 18: ...water faucet opened in Step 3 9 If the water heater is going to be shut down for an extended period the drain valve should be left open FLUSHING THE WATER HEATER STORAGE TANK 1 Turn off the electrica...

Page 19: ...the anode 1 Turn off the power supply to the water heater 2 Shut off the water supply and open a nearby hot water faucet to depressurize the water tank 3 Drain approximately 5 gallons of water from t...

Page 20: ...tanks must be installed on all closed water systems DO NOT PLUG THE TEMPERATURE PRESSURE RELIEF VALVE OPENING THIS CAN CAUSE PROPERTY DAMAGE SERIOUS INJURY OR DEATH Explosion Hazard Temperature Press...

Page 21: ...ccumulations on the elements causes sizzling and hissing noises when the heater is operating The sounds are normal however the tank bottom and elements should be cleaned See the Maintenance section of...

Page 22: ...in humid weather or pipe connections may be leaking 3 The anode rod fitting may be leaking 4 The temperature pressure relief valve may be leaking at the tank fitting 5 Small amounts of water from tem...

Page 23: ...M A 8 CIRCUIT FOR DUAL ELEMENT HEATER C 2 CIRCUIT FOR SINGLE ELEMENT HEATERS EQUIPPED WITH HIGH LIMIT CONTROL FACTORY WIRED FIELD WIRING WHITE FOR 120V 277V Figure 8 A8 and C2 Circuit Wiring Diagrams...

Page 24: ...24 www hotwater com 500 Tennessee Waltz Parkway Ashland City TN 37015 Tech Support 800 527 1953 Parts 800 433 2545 Copyright 2022 All rights reserved Printed on 7 25 2022 7 17 AM CT...

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