Page 5.2
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac return
Fan relay
Compressor relay
1st stage heat circuit
W1
W2
G
R
C
Y1
RS2
6 Wire, 1 Stage Cooling, 1 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(FAN)
Residential & Commercial 1 Stage Cooling,
with 1st Stage Gas Heat
Commercial Heat Pump 1 Stage Cooling
with 2 Stage Heat
OR
5
CK1
CKGND
ECON
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
W2
MISC1
RS2
MISC3
RSGND
RS+5
INSTALL HUMIDITY
MODULE WITH SENSING
ELEMENT OUTWARD
HUM
NO HUM
RS1
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