pump's documentation or to confirm your wiring.
If your thermostat has a connector labeled E and a wire is plugged into it, you likely have Emergency Heat. Experience: Retired HVAC/ Electrical & Boiler contractor.
And I need to know which wiring diagram was followed on page 3 of the manual above. X2 Y the new unit only shows B O G T W/Aux R RC with R and RC jumped.
I have an carrier condensor unit outside model # XXXXX 2 wire from that. From your description you have a heat pump which may not have any working auxiliary heat and your orange wire should be connected to terminal "O" on the The standard wiring for thermostat terminals used with a single stage heat Honeywell WiFi thermostat jumper loop separate ac and gas furnace.
My biggest question is - do I go by wire labels or by "HEAT PUMP" labels has another "E"/"W2" labelled going from the AUX to E on the thermostat? The jumper between Aux and E was installed to allow emergency heat or. Any ideas what these features are or what wire(s) I need to install?
So I'd go E to W1, Aux to W2, and the rest as wired. permalink; embed.i have an old honeywell mercury thermostat and am planning on installing a hunter digital thermostat.
the honeywell has O, R, Y, G, W1 and C. the hunter has Y/O, RH, Y1, G, W/B and RC.
which wire . Thermostat Wiring Guide | 3 RH RC Z W2 W C Y Y2 G OB Diagram of conTrol wire connecTions for 4-wire heaT/cool-conTrol wires plus c wire RH RC Z W2 W C Y Y2.
Right now, my thermostat has an orange wire in O, a green wire in G, a yellow wire in Y, a red wire in R, a blue wire taped off, and BOTH a black and white wire in W/Aux. B and RC have no wires.
I cannot figure out this black wire. I think maybe it is being used as the common wire, as there is no C terminal on this thermostat.
Any ideas? Old thermostat has terminals C,G,R,W2,O,,Y AND E.
Based on the diagram I have on the installation manual--C or X, B wires, do not connect G or F wires, connect to G W or W1, H, O/B wires connect to W O/B--unused terminal in between--Y or Y1, M wires connect to Y R or RH, 4, V connect to R Rc or R connect to Rc.Help with wiringSOLVED: Thermostat Wiring: W2? E?
Where to connect? - Fixya