Honeywell Thermostat Th5220 Wiring Diagram. Large clear backlit display is easy to readeven in the dark. Shielded cable is not required.
Put a hole in the wall and run the wire from the furnace through the socket. The t6360b room thermostat l641a cylinder thermostat and honeywell. To wire the thermostat for ac power connect the common side of the cool ing transformer to the cterminal as shown at left.
Please refer to the wiring diagrams over the page 32308181 020 a after powering up both devices the green led is on.
For example if a module will be powered up also it sends out the signal of half the voltage and the technician will not know this he would think he. If the color of your wires has faded or if 2 terminals have the same wire color use the wire labels provided in the package to label each wire. If you have a c wire place it into the c terminal on your wall plate. In some cases one of those wires may be your common.