Old Mercury Thermostat Wiring Diagram

Thermostat wiring diagram honeywell flat four wiring diagram size.
Old mercury thermostat wiring diagram. Here are several of the leading illustrations we get from different sources we hope these images will work to you as well as with any luck very appropriate to exactly what you want regarding the honeywell mercury thermostat wiring diagram is. Ct87a b j roundfi thermostat 69 0274 6 6 wire the thermostat 1. A look at a iconic bit of equipment the classic honeywell round thermostat. The blue brown or b lack wires also referred to as the c wire this wire connects the low side of the output of the low voltage power to the t stat.
If you have only two wires in your heating or cooling system there is no thermostat blue wire or common wire to power the thermostat. A wiring diagram is a streamlined conventional photographic depiction of an electric circuit. You need a battery powered or mechanical model. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system.
It reveals the elements of the circuit as simplified shapes as well as the power as well as signal connections between the gadgets. How to replace your old thermostat. These run from the thermostat to the furnace and control the heat in a home. Never attach wires to both the b and o terminals.
They re there and i ll tell you how to find them. Variety of honeywell mercury thermostat wiring diagram. By the use of an adjustable set point the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home and to turn off the system when the desired temperature is achieved. 8 through 13 wiring diagrams.
I recently replaced my old white rodgers mercury thermostat with a programmable lux model tx9600ts but not before i had a moment of panic all the instructions and how to videos say to note what wire is connected to what lettered connection point. The red wire the red wire r rc rh connects the high side of the output of the control transformer to the t stat. Replacing mercury thermostat with a. 800 x 600 px source.
Note that in our case we had to use the green wire for c as discussed below because there were only four wires coming from. How to replace an analog thermostat with a digital thermostat music curtsey of army of techno www. Use the wiring cross reference table below to match each old thermostat wire with its corresponding terminal on the ct87 wallplate or subbase. To wire a thermostat of this kind basic electrical skills tools and safety techniques are required.
To avoid confusion with thermostat wire colors label the wires before removing them from the old thermostat.