Original message
| mar1111
|  "T874G/Q674F REPLACE WITH RTH7400D"
, posted Mon 22 Sep 13:44:  
Hello,
I have a honeywell T874G/Q674F 1212
(T874G/Q674F in heat pump system. Includes AUX. HT. and EM.
HT. LEDs.)and I have the following wires on terminals
W2= White
G = Green
R = Red
X = Black
L = Brown
E = Blue
Y = Yellow
O = Orange
Where do they go on the new RTH7400D??
Mike R
[this message was edited by mar1111 on Mon 22 Sep 13:53] |
| Replies:
|
| Houston204
| "Re(1):T874G/Q674F REPLACE WITH RTH7400D" , posted Mon 22 Sep 14:51
Aux = white
G = green
Rc & R = red (use provided jumper)
C = black
L = brown
E = blue
Y = yellow
O/B = orange
You must also configure your new stat to match your system.
Set option 170 to 7.
190 = 0
240 = 9
"Tip of the Day" Remember to remove power first.
|
| | mar1111
| "Re(2):T874G/Q674F REPLACE WITH RTH7400D" , posted Mon 22 Sep 15:30
Thank you Houston204
Mike R
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