Page 5.4 5, Hp gas b o elec gas (f a n ) – Venstar T1900 Installation User Manual
Page 16
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
Reversing Valve
O
W
2
G
R
C
Y
1
RS2
Residential Heat Pump with O Reversing
Valve 1 Stage Cooling, with 2 stage Heat
6 Wire, 1 Stage Cooling, 2 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(F
A
N
)
Page 5.4
5
HP
GAS
B
O
ELEC
GAS
(F
A
N
)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3
MISC2
MISC1
Y2
(MISC1
ONLY)
INSTALL HUMIDITY
MODULE WITH SENSING
ELEMENT OUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
H
U
M
N
O
H
U
M