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Old 01-15-2010, 01:12 AM   #1
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Join Date: Jan 2010
Location: Harrison, Ohio
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Ritetemp 6036 replacement thermostat


I am trying to replace my old thermostat with a new Ritetemp 6036. Below is how the wires are connected on my old Arcoaire:

Name of old thermostat : Arcoaire

Model of old thermostat : 9105N or T874R1517 - I think 9105N because that number is on the subase as well.

Model of old subase : Q674L 1538 or 9105N

Below are the terminals that have wires attached which totals 8:
This many wires makes me think system is 2 stage heat and cool with aux heat.

W1 - connected to subase and in furnace
Y - connected to subase and in furnace
T - connected to subase and in furnace
R - connected to subase and in furnace
X - connected to subase and in furnace
O - connected to subase and in furnace

C - connected to subase but not in furnace
G - connected to subase but not in furnace

C & G - even though not wired to furnace connections may interact with circuit board of subase

Wire jumper from W1 to E - no other wire in E which makes me think there is a circuit board I can not see.

These are the terminals available on the new thermostat:

C - B - O - W2 - W - Y - Y2 - RH - RC - G - A

I have emailed and talked to the people at Ritetemp and they to not know how to connect it.

I would very much appreciate somebody's help.

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electric furnace, hvac operation, thermostat installation


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