Mobile homes have become an affordable housing option for many people. These homes are known for their ability to be moved from one location to another, and for being energy-efficient. As with any home, mobile homes require proper heating systems to keep the occupants comfortable during the colder months. In this article, we will discuss the wiring diagram for mobile home furnace, which is an important aspect of the furnace installation process.
What is a Mobile Home Furnace?
A mobile home furnace is a heating unit designed specifically for use in mobile homes. These furnaces are typically smaller in size than regular furnaces, and are designed to fit in tight spaces. They are also energy efficient, helping to reduce energy costs. Mobile home furnaces are available in gas, electric, and oil-powered options.
There are several important components that make up a mobile home furnace. These include:
| Component | Description |
|---|---|
| Heat exchanger | The component responsible for transferring heat from the furnace to the air in the home. |
| Burner | The part of the furnace that ignites and burns fuel to produce heat. |
| Blower | The component that circulates warm air throughout the home. |
| Control board | The electronic component that controls the operation of the furnace. |
Wiring Diagram for a Mobile Home Furnace
The wiring diagram for a mobile home furnace is a diagram that shows the connections between the components of the furnace. This diagram is important because it helps the technician to understand how the furnace is wired, and how to troubleshoot any problems that may arise.
Mobile home furnace wiring diagrams may vary depending on the make and model of the furnace. However, most wiring diagrams will include the following components:
- Thermostat wiring
- High limit switch wiring
- Rollout switch wiring
- Pressure switch wiring
- Gas valve wiring
- Transformer wiring
- Blower motor wiring
- Ignitor wiring
Thermostat Wiring
The thermostat is the component that controls the temperature in the home. The thermostat wiring diagram will show how to connect the wires from the thermostat to the furnace control board.
The most common wires that are connected to the thermostat include:
- R (red wire) – connects to the 24-volt power supply
- W (white wire) – connects to the furnace control board to turn on the heat
- G (green wire) – connects to the furnace control board to turn on the blower fan
- B (blue wire) – connects to the furnace control board to activate the heat pump (if applicable)
The wiring diagram for your specific thermostat will provide detailed instructions on how to connect these wires.
High Limit Switch Wiring
The high limit switch is a safety feature that shuts off the furnace in the event that the temperature inside the furnace gets too high. The wiring diagram for the high limit switch will show how to connect the wires from the switch to the furnace control board.
The high limit switch wiring diagram will typically include the following wires:
- W1 (white wire) – connects to the furnace control board to turn on the heat
- C (blue wire) – connects to the same terminal as the white wire to complete the circuit
- L1 (black wire) – connects to the high limit switch
- L2 (red wire) – connects to the high limit switch
Rollout Switch Wiring
The rollout switch is another safety feature that shuts off the furnace in the event that the temperature inside the furnace gets too high. The wiring diagram for the rollout switch will show how to connect the wires from the switch to the furnace control board.
The rollout switch wiring diagram will typically include the following wires:
- W1 (white wire) – connects to the furnace control board to turn on the heat
- C (blue wire) – connects to the same terminal as the white wire to complete the circuit
- L1 (black wire) – connects to the rollout switch
- L2 (red wire) – connects to the rollout switch
Pressure Switch Wiring
The pressure switch is a safety feature that ensures that the furnace is not releasing harmful gases into the home. The wiring diagram for the pressure switch will show how to connect the wires from the switch to the furnace control board.
The pressure switch wiring diagram will typically include the following wires:
- C (blue wire) – connects to the furnace control board to complete the circuit
- NO (white wire) – connects to the pressure switch normally open terminal
- COM (black wire) – connects to the pressure switch common terminal
Gas Valve Wiring
The gas valve is the component that controls the flow of gas to the furnace. The wiring diagram for the gas valve will show how to connect the wires from the valve to the furnace control board.
The gas valve wiring diagram will typically include the following wires:
- TH (brown wire) – connects to the thermostat to signal the gas valve to open
- TH/TP (pink wire) – connects to the thermostat to signal the gas valve to close
- 24V (red wire) – connects to the 24-volt power supply
- COM (blue wire) – connects to the furnace control board to complete the circuit
- LP (yellow wire) – connects to the pressure switch to confirm proper gas flow
Transformer Wiring
The transformer is the component that converts the 120-volt power supply to 24-volts, which is needed to power the furnace control board. The wiring diagram for the transformer will show how to connect the wires from the transformer to the furnace control board.
The transformer wiring diagram will typically include the following wires:
- H1 (black wire) – connects to the 120-volt power supply
- H2 (white wire) – connects to the 120-volt power supply
- X1 (red wire) – connects to the furnace control board to provide 24-volt power
- X2 (blue wire) – connects to the furnace control board to provide 24-volt power
Blower Motor Wiring
The blower motor is the component that circulates warm air throughout the home. The wiring diagram for the blower motor will show how to connect the wires from the motor to the furnace control board.
The blower motor wiring diagram will typically include the following wires:
- Black wire – connects to the furnace control board to provide power to the motor
- White wire – connects to the furnace control board to complete the circuit
Ignitor Wiring
The ignitor is the component that ignites the fuel in the furnace. The wiring diagram for the ignitor will show how to connect the wires from the ignitor to the furnace control board.
The ignitor wiring diagram will typically include the following wires:
- H1 (white wire) – connects to the furnace control board to provide power to the ignitor
- H2 (white wire) – connects to the furnace control board to provide power to the ignitor
FAQ
Can I install a mobile home furnace myself?
No, it is not recommended to install a mobile home furnace yourself. It is best to hire a licensed HVAC technician to install the furnace to ensure it is installed safely and efficiently.
What should I do if my mobile home furnace is not working?
If your mobile home furnace is not working, the first thing you should do is check the thermostat to make sure it is set to the correct temperature. If that does not solve the problem, you should call a licensed HVAC technician to troubleshoot the furnace.
How often should I have my mobile home furnace serviced?
You should have your mobile home furnace serviced once a year to ensure it is functioning properly and efficiently. Regular maintenance can help prevent breakdowns and prolong the lifespan of your furnace.
What are some signs that my mobile home furnace needs to be replaced?
Some signs that your mobile home furnace needs to be replaced include:
- The furnace is more than 15 years old
- The furnace is making strange noises
- The furnace is not keeping the home warm enough
- Your energy bills are increasing
Can I use a regular furnace in a mobile home?
No, it is not recommended to use a regular furnace in a mobile home. Mobile home furnaces are designed specifically for use in mobile homes and are built to fit in tight spaces. Regular furnaces may not fit properly and can be a safety hazard.
In conclusion, the wiring diagram for mobile home furnace is an important aspect of the furnace installation process. By understanding how the furnace is wired, technicians can troubleshoot any problems that may arise. It is important to hire a licensed HVAC technician to install and service your mobile home furnace to ensure it is operating safely and efficiently.
