Whirlpool Electrical Requirements for Water Heaters and Safety Precautions
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Electrical Requirements

WARNING

Electric Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

WARNING

Fire Hazard

Use 10 gauge solid copper wire.

Use a UL listed or

CSA approved strain relief.

Connect ground wire to green ground screw.

Failure to do so can result in death, fire, or electrical shock.

If you lack the necessary skills required to properly install the electrical wiring to this water heater, do not proceed but have a qualifi ed electrician perform the installation.

When making the electrical connections, always make sure:

•The electrical supply has the proper overload fuse or breaker protection.

•Wire sizes and connections comply with all applicable codes.

•Wiring enclosed in approved conduit (if required by local codes).

•The water heater and electrical supply are properly grounded.

Figures 3, 4, and 5 are provided as reference drawings for the 120/240v 2-wire models only. Always reference the wiring diagram located on the water heater for the

Figure 2

Heating Element

NOTE: Applying electrical power to elements that are not submerged in water will destroy them. The manufacturer will not warranty any elements damaged in this manner.

Figure 3

 

 

 

 

120/240V 2-Wire Models

 

 

 

Junction Box

Green

Ground

 

Wire

 

Ground

Conduit

Cover

 

 

 

 

Screw

 

 

 

White Wire (120V Models)

Black Wire

 

 

Red Wire (240V Models)

 

 

 

 

Figure 4

Wiring Diagram

120V Models Only Overload Circuit

Protection

Breaker

Approved Connectors

Black

Hot

White

To 120V

Power Supply

 

Neutral

 

Ground

 

Screw

 

Electrical

 

Service Ground

Figure 5

Wiring Diagram

208/240v Models Only

Overload

Protection Circuit

Breaker

Approved Connectors

correct electrical connections and connect the electrical supply to the water heater in accordance with local utility requirements and codes.

When installing the electrical wiring to the water heater:

1.Be sure tank is completely filled with water before making any electrical connections. (See Figure 2)

2.Disconnect the electric power.

3.Loosen the screw holding the junction box cover to the top of the water heater and set aside.

4.Connect the electrical supply to the water heater. A standard 1/2 inch opening has been made in the junction box for conduit connections.

5.Connect ground wire to green ground screw in the junction box of the water heater. Reinstall the junction box cover.

Black

Red

Ground

Screw

Electrical

Service ground

L1

L2

To 208/240v

1Phase Power supply

5

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Contents Installation Instructions Use & Care Guide Your safety and the safety of others are very important Water Heater SafetyConsumer Information Installing Your Water HeaterConsumer Responsibilities Unpacking the Water HeaterSite location Location RequirementsElectrical Requirements Water System Piping Piping InstallationClosed System/Thermal Expansion Temperature and Pressure Relief ValveWater Heater Location Installation ChecklistWater System Piping Electrical ConnectionsOperating Your Water Heater Before UsingWater Temperature Regulation Reconnect power Adjusting the Thermostat/High Limit ControlAnode Rod/Water Odor Operational ConditionsWater Heater Sounds StackingDraining and Flushing Maintenance of Your Water HeaterHeating Element Replacement Problem Possible Causes Troubleshooting ChartRepair Part Illustration Repair PartsBranch Circuit Sizing Guide Thermostat Wiring Diagram

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