Help ! Hooking up new thermostat


Old 01-22-14, 04:55 PM
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Help ! Hooking up new thermostat

Hi I have a new thermostat I need to install but don't understand all these wires. It has 6. I have pics of how the original was hooked up and the new Honeywell unit hasn't got the same letters :/
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Old 01-22-14, 04:58 PM
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The second pic is of the new stat.
Old 01-22-14, 05:12 PM
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Welcome to the forums.

You've got a heat pump and the blue wire is the reversing valve for heat/cool. Make sure in programming you select heat pump as a system type. The following should get you working. Jay or Houston will usually stop by and tell you how to fine tune the programming.

X = brown = C
W2 = white = aux and E - use a jumper. (I'm not 100% certain on this connection)
R = red = R/Rc
G = green = G
Y = yellow = Y
O= blue = O/B
Old 01-23-14, 04:17 AM
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Thank you so much. I hooked it up this way but I'm not sure on the programs. It's a Honeywell th52200d 1029.
Old 01-23-14, 05:59 PM
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1 = 5
2 = 0
3 = 1 (if this option appears)
5 = 3 (if this option appears)
6 = 3
8 = 3
9 = 3
12 = 1
15 = 5
26 = 0 (1 is more economical. see quote)

Systems with heat pumps can be set to operate in one of two ways:

Comfort setting:
The thermostat will prioritize comfort over economy
depending on heat pump performance, load conditions and whether the
equipment is calling for heat. Raising the temperature just a few degrees
will often activate auxiliary heat.

Economy setting:
The thermostat will attempt to reach the temperature set-
ting without activating auxiliary heat. The thermostat waits a preset time
before allowing auxiliary heat to be activated depending on the compressor
stage performance, and on how many degrees the temperature setpoint is

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