mercredi 13 mai 2015

tstat wiring

I'm replacing an old mercury tstat with a new digital tstat For a heat pump. New tstat works with heatpumps, and heat pump is a Rheem

old tStat wires connected
G
Y
R
X1
B
W2 jumpered to E

New tstat options
Y2
Y1
G
RC
C
W1
W2/O

Where do X1 and b go?
tstat wiring

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