Need Help - Old heat pump thermostat 7 wire - to new honeywell rth6350
#1
08-09-14, 09:29 PM
Need Help - Old heat pump thermostat 7 wire - to new honeywell rth6350
I have an old Janitrol heat pump 3aat83d21a1, I am replacing it with a Honeywell rth6350d. The Janitrol does have an emergancy heat switch.
Here is how the current thermostat is connected:
Wires:
G
Y
E
W
C
O
R
Here are the available connections on my new unit:
L
AUX/E
G
O/B
Not Used
Y
R
RC
I had:
E to E/Aux
Y to Y
G to G
O to O/B
R to R and jumped to RC
It said to not use C.
I am not sure where W goes.
Without W connected, I have the air conditioning working, but not the heat.
Any and all help is greatly appreciated! Thanks in advance!
Here is how the current thermostat is connected:
Wires:
G
Y
E
W
C
O
R
Here are the available connections on my new unit:
L
AUX/E
G
O/B
Not Used
Y
R
RC
I had:
E to E/Aux
Y to Y
G to G
O to O/B
R to R and jumped to RC
It said to not use C.
I am not sure where W goes.
Without W connected, I have the air conditioning working, but not the heat.
Any and all help is greatly appreciated! Thanks in advance!
#2
08-09-14, 09:34 PM
Forum Topic Moderator
You wired it correctly.
You must also configure the new thermostat for heat pump operation with Aux heat. Set function 1 to 5.
Your heat pump is the reverse of most brands so you must also configure the reversing valve to energize for cooling. Function 2 = 0.
Last edited by Houston204; 08-09-14 at 09:58 PM.
#3
08-09-14, 09:42 PM
Function 1 is set to 5 correctly.
Function 2 is set to 0, because I have the "O" wire connected to the O/B. Do I need to change that function to 1? (opposite of what it should be?)
Thanks for your help!
Function 2 is set to 0, because I have the "O" wire connected to the O/B. Do I need to change that function to 1? (opposite of what it should be?)
Thanks for your help!
#4
08-09-14, 10:08 PM
Forum Topic Moderator
You are correct. 2 = 0
It is getting late. I was thinking of weatherking for some reason.
Did you wait over 5 minutes between the heat and cool demand before giving up on it?
It is getting late. I was thinking of weatherking for some reason.
Did you wait over 5 minutes between the heat and cool demand before giving up on it?
