2 Wire Thermostat Wiring Diagram Heat Only

2 Wire Thermostat Wiring Diagram Heat Only

Introduction

Heating systems are essential for maintaining a comfortable environment in residential and commercial spaces. The thermostat is a crucial component of the heating system that controls the temperature of the space. The 2 wire thermostat is a simple and affordable option for heating only systems, which includes baseboard heaters, wall mounted heaters, and other similar systems.

Wiring Diagram

The 2 wire thermostat wiring diagram for heat only systems is quite simple. It consists of two wires, typically red and white. The red wire is the power wire that connects to the R or RH terminal, and the white wire is the heat wire that connects to the W terminal. The wiring diagram is as follows:

Wire Color Terminal Description
Red R or RH Power wire
White W Heat wire

FAQs

Q: How do I know if my system is a heat only system?

A: If your system only has heating and no cooling, then it is a heat only system.

Q: Can I use a 2 wire thermostat for a cooling system?

A: No, a 2 wire thermostat is only suitable for heating systems.

Q: Do I need a C wire for a 2 wire thermostat?

A: No, a 2 wire thermostat does not require a C wire as it only needs two wires to function.

Q: Can I use a 2 wire thermostat with a furnace?

A: Yes, a 2 wire thermostat can be used with a furnace if the system is a heat only system.

Q: How do I install a 2 wire thermostat?

A: The installation process may vary depending on the specific thermostat and system. It is recommended to refer to the manufacturer’s instructions for installation.

Conclusion

The 2 wire thermostat is an affordable and simple option for heat only systems. The wiring diagram for this type of thermostat is straightforward, consisting of only two wires. It is essential to ensure that the thermostat is compatible with the system before installation. Overall, a 2 wire thermostat is a reliable and cost-effective option for regulating the temperature of a space.