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Another RTH8500 thermostat

802 views 0 replies 1 participant last post by  JayBunnett 
#1 ·
Hi and thanks. Sorry current inquiries don't match my situtation? AC is not coming on, despite thermosat working as per set up instructions.
Trying to install this model:
Current wires available:
Green
White
Black
Orange
Red

Thermostat options; Conventional installation (no heating pump) - just AC and furnace.
R
RC - jumpered to R
W
Y
G
C

Y2
W2

Hooked:
Orange to RC
Red to R
White to W
Black to Y
Green to G

Previous thermostat had orange wire taped off.

Thanks in advance.
 
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