Dual Fuel Furnace Wiring Diagram. Get pro installation for a dual fuel system a dual fuel heating and cooling system also called a hybrid or packaged system is a combination of a heat pump for primary heating and cooling and a furnace usually gas or oil that. The current system controlled by a honeywell focuspro th6220 does not lockout the heat pump when the gas furnace runs.
It shows the parts of the circuit as simplified shapes and the power and also signal links between the tools. I go over the efficiency temperature se. Many houses are equipped with heat pumps which transfers heat from one place to another.
New nest thermostat if b wire in ob cool works and heat doesnt.
Installation and service manuals for heating heat pump air conditioning equipment brands p s free manual. Wiring diagrams a. Heat pump gas furnace 2h1c dual fuel with lockout. For heat pump systems see pages 6 and 7.