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Ihave a 15 year old trane thermostat I am replacing.I
ihave a 15 year old trane thermostat I am replacing.I purchased a Honeywell rth111 to replace it with.I am not sure about the wiring of the new one.Can you help … read more
BillyHvac
BillyHvac
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Billy, As we had discussed I have purchased a HZ221 True
Hi Billy, As we had discussed I have purchased a HZ221 True zone panel. I was trying to match up the wires on my Trol a temp mm2 with HZ221 and did not find a match on HZ221 for a white wire from my o… read more
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I just purchased a new Honeywell RTH5100B Non-programmable
Hi--I just purchased a new Honeywell RTH5100B Non-programmable Digital Thermostat for my mother's home. While the instructions included with the thermostat were quite descriptive, I'm at a loss trying… read more
BillyHvac
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I am installing a new Honeywell thermostat model RTH7600D on
I am installing a new Honeywell thermostat model RTH7600D on a Rheem Heat pump. The problem is I have slots for O(orange) and (blue) on the old thermostat but the new thermostat only has a O/B slot. A… read more
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I'm replacing an old T874R mercury thermostat with a Digital
I'm replacing an old T874R mercury thermostat with a Digital Honeywell RTHL2310/RTHL221 series and don't know which colored wires to attach to which terminals after taking the old one off. I have an o… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
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Need to hook up a thermostat to an 8 wire system. The thermostat
Need to hook up a thermostat to an 8 wire system. The thermostat has only 7 terminals. Heater system has terminals labeled.... C , Y, R, E, W1, W2, W3, G, My THERMOSTAT Terminals are ..... G, Y, W, RH… read more
hvacexpertjoe
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Im trying to install a RHTL111B thermostat. I have 4 wires.
I'm trying to install a RHTL111B thermostat. I have 4 wires. Red, black, white, green, where do they go?… read more
airheatman
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I am replacing my LUX PSMH45 to Aprilaire 8465. I have a 2
I am replacing my LUX PSMH45 to Aprilaire 8465. I have a 2 stage heat and 1 stage AC its a heat pump. My question is the wiring. On the LUX it goes as follows R to R, G to G, Y to Y, Tan to X, Black t… read more
Scott
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Have a Tappan B2BM042K-B unit. Manual Intertherm thermostat
Have a Tappan B2BM042K-B unit. Manual Intertherm thermostat with X(blue), W2(white), R(red), G(green), O(orange), Y(yellow), E(black) wired. Want to install Ritetemp 8030 thermostat with C, RC, O, B, … read more
BillyHvac
BillyHvac
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just had a new heat pump/air handler with heat strip installed,
just had a new heat pump/air handler with heat strip installed, model is Rheem. the wiring on air handler to thermostat wiring is wh/bl - bl (w2), wh/bk - wh (w1), brown to brown (c), gr/bk - gr (g), … read more
BillyHvac
BillyHvac
Journeyman Service Technician
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Am replacing Robertshaw 9500 Thermostat with programable Honeywell
Am replacing Robertshaw 9500 Thermostat with programable Honeywell RTH6350/6450 series Thermostat. Old thermostat has four wires connected. Red to RH/RC with jumper, white to W, Blue to B, and Green t… read more
BillyHvac
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I just bought a new thermostat, Honeywell RTH6350/RTH6450 and
I just bought a new thermostat, Honeywell RTH6350/RTH6450 and the old thermostat (Carrier) has W O G R C Y connections. this does not match the honeywell model. Which of the old wires go to the connec… read more
gotoman for ac
gotoman for ac
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I have a heil furnace model# XXXXX , I had changed the
I have a heil furnace model# XXXXX , I had changed the wiring from the thermostat to the circut board but didn't pay attention how the wiring was put in place[not sure if it was right at all] there wa… read more
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My new home has a White Rodgers Model 1F 78 thermostat. The
My new home has a White Rodgers Model 1F 78 thermostat. The Aprilaire humidifier I'm installing, calls for connecting my humidistat to several furnace connections but also to the C connection of a the… read more
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i bought a hunter 44260 thermostat - I have 6 wires coming
i bought a hunter 44260 thermostat - I have 6 wires coming out of the wall: red, green, black, yellow, blue, orange. The letter on the thermostat are g, rc, rh, y/o, w/b, y/1 - which wire goes with wh… read more
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I am trying to wire a Hunter 4486 to a single stage heat pump.
I am trying to wire a Hunter 4486 to a single stage heat pump. The current thermostat is a Trane Baystat 239 with the following. B Blue W White R Red T tan/brown Y yellow G Green O Orange X2 Black I c… read more
Douglas
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Good Afternoon I am upgrading from an old Honeywell T841A1068
Good Afternoon I am upgrading from an old Honeywell T841A1068 thermostat, to a Honeywell TH3210D. The terminals for the T841A1068 are B, W, F, X2, G, Y, R, O, T * only the W and F terminals did not ha… read more
Douglas
Douglas
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i have a hunter thermastate model 44360 i have 4 wires red
i have a hunter thermastate model 44360 i have 4 wires red white blue green on the thermastat it has g for green ? rc/rh with a jumper y/o , w/b i assume the red goes to one of the r/c-r/h does it mat… read more
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