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Replace old Coleman Heat Pump thermostat with new Hunter model 44272

Replace old Coleman Heat Pump thermostat with new Hunter model 44272

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  #1  
Old 01-30-13, 09:43 PM
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Replace old Coleman Heat Pump thermostat with new Hunter model 44272

I am trying to replace a 30 year old thermostat for a Coleman Heat Pump that has electric emergency heat with a new Hunter thermostat model# 44272. The thermostat instructions state that it will work for this type of system, but the instructions are helping me with mapping the old connections to the new. Here is a layout of the old thermostat (I know that 30 years ago, there wasn't a strictly adhered to standard for wire color):

Wire Color / Letter on the old thermostat
Red / R
Green / G
Yellow / Y1
White / W1
Blue / X
Black / W2
Brown / A

The instructions for the Hunter thermostat say to connect the old 'X' to either the new 'C' or the new 'L'.

Here are the available letters for the heat pump side of the new thermostat:
R
Y
G
L
O
B
E
Y2
C

Here are the available letter for the 'conventional' side of the new thermostat:
RH
RC
Y
G
W
Y2
C
A

Can anyone help me figure out how to hook this new thermostat up?

Thanks!
 

Last edited by Nate_B; 01-30-13 at 09:44 PM. Reason: fix typo
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  #2  
Old 01-31-13, 12:54 PM
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Do you have the model# on the old stat?


 
  #3  
Old 01-31-13, 03:46 PM
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The old thermostat is Coleman 3AAT82B13B1.

Thanks!
 
  #4  
Old 01-31-13, 06:30 PM
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I don't see a reversing valve terminal listed (like B, V, or O).
List any unused terminals on the old stat.

A picture of the Coleman subbase with the wires connected to it would be even better...

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This example shows a Q674 number on the subbase....
 

Last edited by Houston204; 01-31-13 at 06:53 PM.
  #5  
Old 01-31-13, 08:03 PM
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I agre with Houston, I am not able to come up with anything on the 3AAT82B13B1 number.
 
  #6  
Old 01-31-13, 08:13 PM
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The furnace is a Presidential II. I've attached 2 images of the thermostat. Sorry for the poor quality. I've added text to show where the letters are.

Thanks for the help guys.
 
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  #7  
Old 01-31-13, 08:16 PM
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I almost forgot, all terminals are being used.
 
  #8  
Old 02-01-13, 04:46 AM
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I see some unusual functions for terminals with Evcon/ Coleman Thermostats.
I cannot find that specific Thermostat.
Post a picture of the control wire connections at the air handler.
 
  #9  
Old 02-01-13, 05:45 AM
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I found the same thing too, Houston.

Nate, can you also give us the make and model of the air handler/furnace, and outdoor unit?
 
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