Oil Furnace And Heat Pump Wiring Diagram
Some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.
Oil furnace and heat pump wiring diagram. A heat pump with oil furnace backup combines the benefits of both systems. C is known as the common terminal. 4000 series p24a2 p31a. If you use a thermostat like the iaq.
4052 series fuel saver modules. 9 this diagram is to be used as reference for the low voltage control wiring of your heating and ac. 4091 series water source heat pumps. I go over the efficiency temperature settings what to watch out for so the heat pump is not damaged what the thermostat wire terminals colors and functions are what happens during defrost and.
Before uninstalling the old thermostat take a picture of the wiring with your cell phone before removing the wires. The basic heat pump wiring for a heat pump thermostat is illustrated here. Answered by a verified hvac technician. You can probably set your heat pump lock out temp to 30 maybe even 25.
As shown in the diagram you will need to power up the thermostat and the 24v ac power is connected to the r and c terminals. You can set the furnace lock out at 35 and the heat pump lock out at 30 with a 2 degree droop. Heat pump thermostat wiring a typical wire color and terminal diagram. Finally the third thermostat diagram showing the average type of split system with an air conditioner or gas or oil furnace used for heating.
This way you have a reference. 4050 series wqs30 wqsd30. 4088 series bc36 blower coils. My paperback and e book.
These two connections will ensure that there is power to the thermostat that you are operating. But when temps dip low instead of switching to a heating panel your heat pump will turn off and activate the oil furnace backup. Heat pump cop would still be well above 1 5. The heating system could also be a boiler however is it necessary to ensure with split systems and the type of heating systems described that you.
Ac heat pump with single stage gas furnace and all fuel kit control wiring heat pump standard thermostat standard furnace outdoor heat pump thermostat. The second wiring diagram showing a heat pump system. The color of wire r is usually red and c is black. 4047 series fm oil furnaces.
This will use the heat pump first between those temps and if the indoor temp drops 2 degrees. It corresponds to the chart below to explain the thermostat terminal functions. Heat pump thermostat wiring chart diagram. To determine wiring diagrams specfic to your product refer to the 2110 product parts manual.