Furnace Fan Limit Switch Wiring Diagram

Turn the power off at the furnace and go a step further for safety and turn the power off at the breaker.

Furnace fan limit switch wiring diagram. It reveals the elements of the circuit as simplified shapes and also the power and signal connections in between the devices. Fan limit control installation faqs furnace temperature switch install wire the controls l6064 doityourself. We also provide a intertherm electric furnace wiring diagram. Wiring the furnace combination fan limit control using the honeywell l4064b as an example.

When the device is used both to control a furnace fan on and off as well as serve as a limit switch then all four terminals are. The following is a wiring diagram for a honeywell fan limit switch control. Before beginning any wiring make sure you turn the power off. Test and replace the fan limit switch on a furnace hvac how to.

This control can be wired to serve as a safety limit switch on a furnace by wiring just the limit terminals on the control. How to install and wire the honeywell l4064b combination furnace intended for honeywell fan limit switch wiring diagram by admin from the thousand photographs on the internet concerning honeywell fan limit switch wiring diagram we choices the best libraries with ideal resolution just for you all and this photos is usually among photographs series inside our greatest photos gallery concerning. 14 16 or 18 solid wire or nos. Strip insulation from wires the distance shown by the strip gauge on the controller.

Fan limit switch wiring questions answers. For st andard wire push in terminals connect wires to the terminals as follows. The switch is one of the easier devices and attachments on a furnace. In many models it also has a built in safety control for the burner to shut off at higher temperatures if the burner s inner control malfunctions.

Furnace fan relay timer sequencer bt13707 00 bt1370700. Male flag connectors on both the fan and limit switches fig. How to install and wire the honeywell l4064b combination furnace for honeywell fan limit switch wiring diagram by admin from the thousand photos on the net regarding honeywell fan limit switch wiring diagram choices the best choices along with greatest resolution simply for you all and this photos is actually one among images libraries in your very best images gallery about honeywell fan. 14 or 16 stranded wire depending on electrical requirement.

The fan limit control switch on a furnace regulates when the blower will come on or shut off. Wiring diagrams furnace temperature fan limit switch. This article series describes in detail the installation wiring of furnace combination controls also commonly called the fan limit switch on warm air heating systems.