It shows how the electrical wires are interconnected and will also show where fixtures and components might be attached to the system. Honeywell thermostat wiring diagram 4 wire. Commonly used green white yellow and red thermostat wires. You can avoid a major headache later on that could damage your entire system. No c wire in this example. I show where the wires go at the thermostat the color code then down at the furnace control board. Of course though you should check that the wires in your hvac system match up with their expected functions. So 4 4 and 5 5 when dealing with the wire setup. The major component to look out for if you don t know the wiring system is the common wire which is always absent from a. Installing the wrong thermostat type always install a thermostat to its compatible base.
Red wire for 24 volt hot.
The basic heat a c system thermostat typically utilizes only 5 terminals. Blue wire is the common wire common wire can be of any other color cooling wire of yellow color as in 5 wire heating system is not found here because this wiring is for heat only thermostat which does not have dual temperature controls. I show where the wires go at the thermostat the color code then down at the furnace control board. It reveals the parts of the circuit as streamlined shapes and the power and also signal connections in between the gadgets. This shows where to hook them up in a typical heat cool setup. Red wire for 24 volt hot.
The major component to look out for if you don t know the wiring system is the common wire which is always absent from a. I show where the wires go at the thermostat the color code then down at the furnace control board. Honeywell thermostat wiring diagram 4 wire. No c wire in this example. Commonly used green white yellow and red thermostat wires. We have a 19 year old condo with an old carrier mercury thermostat. On the back of the thermostat are a number of labeled contacts only the following have wires connecting them. Blue wire is the common wire common wire can be of any other color cooling wire of yellow color as in 5 wire heating system is not found here because this wiring is for heat only thermostat which does not have dual temperature controls. Basic thermostat wiring for furnace and air conditioner. Variety of 4 wire thermostat wiring diagram.
We have both a natural gas furnace and an ac unit. Variety of 4 wire thermostat wiring diagram. We have a 19 year old condo with an old carrier mercury thermostat. These thermostats have 4 wires described as below. There are only four wires going into the existing thermostat red green blue white. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable. This shows where to hook them up in a typical heat cool setup. Of course though you should check that the wires in your hvac system match up with their expected functions. Red wire for 24 volt hot. The major component to look out for if you don t know the wiring system is the common wire which is always absent from a.
Installing the wrong thermostat type always install a thermostat to its compatible base. How to replace a 4 wire thermostat. Basic thermostat wiring for furnace and air conditioner. The basic heat a c system thermostat typically utilizes only 5 terminals. How to wire a honeywell thermostat with 4 wires in the installations we ve worked with the most common wire color code guide for a four wire t stat are as follows. We have both a natural gas furnace and an ac unit. 4 wire or 5 wire thermostat wiring problem question. Red wire for 24 volt hot. Variety of 4 wire thermostat wiring diagram. On the back of the thermostat are a number of labeled contacts only the following have wires connecting them.
Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable. Honeywell thermostat wiring diagram 4 wire. So 4 4 and 5 5 when dealing with the wire setup. Red wire for 24 volt hot. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above. A wiring diagram is a streamlined conventional pictorial representation of an electrical circuit. This shows where to hook them up in a typical heat cool setup. Of course though you should check that the wires in your hvac system match up with their expected functions. Basic thermostat wiring for furnace and air conditioner. Green wire for the fan.
Of course though you should check that the wires in your hvac system match up with their expected functions. I show where the wires go at the thermostat the color code then down at the furnace control board. There are only four wires going into the existing thermostat red green blue white. We have a 19 year old condo with an old carrier mercury thermostat. Basic thermostat wiring for furnace and air conditioner. You can avoid a major headache later on that could damage your entire system. Commonly used green white yellow and red thermostat wires. No c wire in this example. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable. This shows where to hook them up in a typical heat cool setup.
