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airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8253
Experience:  Furnace, A/C and heat pump specialist.
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I bought a Honeywell Rth 7600 thermostat. I have a heat pump

Customer Question

I bought a Honeywell Rth 7600 thermostat. I have a heat pump and have a C G Y W Rc and w2 and a O wire. Problem is I have nothing to hook up my orange wire to. Rally don't want to pay somebody $120 to screw in three wires
Submitted: 2 years ago.
Category: HVAC
Expert:  airheatman replied 2 years ago.
Hello. My name is ***** ***** I'll do my best to help. Let's get started and see what we can do.You should have an O/B terminal.
Wiring should be :
C to C(Common)
G to G (Fan)
Y to Y (AC Contactor)
W to AUX with a jumper to E(Heat strips)
RC to RC with a jumper to R(24v Power)
O to O/B(Reversing valve)
Expert:  airheatman replied 2 years ago.
Then you will also need to enter the setup menu and set as follows:
Function 0170-7
Function 0180=1
Function 0190-0