Heating Cooling Wiring Diagram. Heating and cooling thermostat wiring diagram heating and cooling wiring diagram wiring diagram is a simplified conventional pictorial representation of an electrical circuit. A gas oil or electric furnace 2 or 3 wires a central air conditioner 2 or 3 wires a hot water system steam or gravit y with or without pump 2 wires a millivolt system 2 wires a central heating system with air conditioning 4.
A gas oil or electric furnace 2 or 3 wires a central air conditioner 2 or 3 wires a hot water system steam or gravit y with or without pump 2 wires a millivolt system 2 wires a central heating system with air conditioning 4. Heating and cooling wiring diagram. It shows the components of the circuit as simplified shapes and the.
A wiring diagram is a simplified conventional photographic depiction of an electrical circuit.
We have 7 wires to connect to the nest. There are also differences when it comes to wiring one to control the heating and cooling system in your home. A new system may need as many as ten wires like a two stage heat two stage cooling system heat pump reversing valves fan control etc if the system had two stage heating andor cooling the 2nd stage termainals would be labelled w1 and w2 for heating y1 and y2 for cooling. Mar 16 2021 heating and cooling thermostat wiring diagram.