Replacing Thermostat

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  #1  
Old 07-22-14, 01:08 PM
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Replacing Thermostat

Replacing my old 1985 Arcoaire heat pump thermostat with a White-Rodgers !F89-211 digital thermostat. Current wiring is:

B = blue wire
G = green wire
Y = yellow wire
X2 = no wire
C = red wire
U = jumped to W2
W2 = white wire
L = black wire
RC = orange wire

My GUESS for proposed wiring is:

C = blue wire
L = black wire
W2 = white wire
E = ???
R = red wire
G = green wire
O/B = orange wire
Y = yellow wire

Any help in confirming or correcting my guesswork will be greatly appreciated.
 
  #2  
Old 07-22-14, 03:49 PM
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It looks like the old stat used orange for 24v power and red for the common.
 
  #3  
Old 07-22-14, 09:53 PM
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B = blue wire = O/B
G = green wire = G
Y = yellow wire = Y
X2 = no wire = E
C = red wire = C
U = jumped to W2
W2 = white wire = W2 (place a piece of wire from W2 to E)
L = black wire = L
RC = orange wire = R


Set the O/B switch to B
Set the fan switch to electric.
 
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Old 07-23-14, 08:26 AM
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Thanks for your help, Houston -- works perfectly.
 
  #5  
Old 07-23-14, 11:31 AM
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That is great news. I am glad that I was able to offer assistance.
 
 

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