Whirlpool Water Heater Wiring Diagram: A Comprehensive Guide

Whirlpool water heaters are an excellent choice for heating water. They are reliable, durable, and easy to install. However, if you have never installed a water heater before, you may need some guidance on how to wire it. In this article, we will provide a comprehensive guide on the whirlpool water heater wiring diagram. We will explain each step in detail and help you avoid common mistakes.

Overview of Whirlpool Water Heater Wiring Diagram

The whirlpool water heater wiring diagram is a blueprint of how the water heater should be wired. It is a visual representation of the connections between the various components of the water heater. The diagram is essential for ensuring that the wiring is done correctly to prevent electrical accidents.

The diagram consists of several parts, including the power supply, the thermostats, the heating elements, and the safety devices. Each component has its connection points, which must be correctly wired to ensure the system works correctly.

The following sections will provide a detailed explanation of how to wire the whirlpool water heater correctly.

Required Tools and Materials

Before we begin, let’s go over the tools and materials required to wire a whirlpool water heater:

Tools Materials
Screwdriver Whirlpool Water Heater
Pliers Black, Red, and Green 10-gauge wires
Wire Cutter Wire Nuts
Wire Stripper Flexible Conduit
Electrical Tape Electrical Box

Power Supply Wiring

The first step in wiring a whirlpool water heater is to connect the power supply. The power supply should be a 240-volt circuit, with two hot wires and a ground wire. The black and red wires are the hot wires, while the green wire is the ground wire. Here is how to wire the power supply:

  1. Turn off the power supply.
  2. Remove the cover of the electrical box.
  3. Feed the 10-gauge wire into the electrical box.
  4. Strip the insulation off the wires, leaving about 3/4 inch exposed.
  5. Connect the black and red wires to the circuit breaker and tighten the screws.
  6. Connect the green wire to the ground bar in the electrical box.
  7. Install the cover of the electrical box.

Thermostat Wiring

The next step is to wire the thermostats. Whirlpool water heaters have two thermostats, an upper and a lower one. Here is how to wire the thermostats:

  1. Turn off the power supply.
  2. Remove the access panel of the water heater.
  3. Locate the thermostats, which are attached to the heating elements.
  4. Remove the wires from the thermostats and heating elements.
  5. Connect the black wire from the power supply to the black wire of the upper thermostat.
  6. Connect the red wire from the power supply to the red wire of the lower thermostat.
  7. Connect the black wire from the lower thermostat to the black wire of the lower heating element.
  8. Connect the red wire from the upper thermostat to the red wire of the upper heating element.

Heating Element Wiring

The next step is to wire the heating elements. Whirlpool water heaters have two heating elements, an upper and a lower one. Here is how to wire the heating elements:

  1. Turn off the power supply.
  2. Remove the access panel of the water heater.
  3. Locate the heating elements, which are connected to the thermostats.
  4. Remove the wires from the heating elements and thermostats.
  5. Connect the black wire of the upper heating element to the red wire of the upper thermostat.
  6. Connect the red wire of the upper heating element to the black wire of the lower heating element.
  7. Connect the black wire of the lower heating element to the black wire of the lower thermostat.
  8. Connect the red wire of the lower heating element to the red wire of the power supply.

Safety Devices Wiring

Whirlpool water heaters have several safety devices, including a high-temperature limit switch, a pressure relief valve, and an aqua stat. Here is how to wire the safety devices:

  1. Turn off the power supply.
  2. Remove the access panel of the water heater.
  3. Locate the safety devices, which are attached to the water heater.
  4. Remove the wires from the safety devices.
  5. Connect the black wire of the aqua stat to the black wire of the power supply.
  6. Connect the green wire of the aqua stat to the ground screw of the water heater.
  7. Connect the red wire of the high-temperature limit switch to the red wire of the power supply.
  8. Connect the green wire of the high-temperature limit switch to the ground screw of the water heater.
  9. Connect the pressure relief valve to the water supply and the drainpipe.

FAQ

What is the purpose of the wiring diagram for a whirlpool water heater?

The wiring diagram is a blueprint of how the water heater should be wired. It is essential for ensuring that the wiring is done correctly to prevent electrical accidents.

What are the tools required for wiring a whirlpool water heater?

The tools required for wiring a whirlpool water heater include a screwdriver, pliers, wire cutter, wire stripper, electrical tape, and a flexible conduit.

What are the safety devices of a whirlpool water heater?

The safety devices of a whirlpool water heater include a high-temperature limit switch, a pressure relief valve, and an aqua stat.

What are the components of a whirlpool water heater?

The components of a whirlpool water heater include the power supply, thermostats, heating elements, and safety devices.

How do I wire the heating elements of a whirlpool water heater?

To wire the heating elements of a whirlpool water heater, connect the black wire of the upper heating element to the red wire of the upper thermostat. Connect the red wire of the upper heating element to the black wire of the lower heating element. Connect the black wire of the lower heating element to the black wire of the lower thermostat. Connect the red wire of the lower heating element to the red wire of the power supply.