Fig. 7—24-v Control Circuit Connections
A97052
C
1
4
7
C
9
6
3
HEAT PUMP
Y
O
Y
O
W2
C
R
FB4ASX
FAN COIL
EMERGENCY HEAT RELAY
W2
W3
E
C
R
G
THERMOSTAT
W2
L
E
C
R
G
ODTS2
ODTS1
BLU
VIO
SYSTEMS WITH TWO
OUTDOOR THERMOSTATS
A97053
HEAT PUMP
E
L
O
O
Y
Y
SYSTEMS WITHOUT
OUTDOOR THERMOSTAT
FB4ASX
FAN COIL
W2
W2
W2
C
C
C
R
R
G
THERMOSTAT
R
G
HEAT PUMP
E
E
L
O
O
Y
Y
FB4ASX
FAN COIL
W2
W3
W2
W2
C
C
C
R
R
G
THERMOSTAT
R
G
ODTS
BLU
SYSTEMS WITH ONE
OUTDOOR THERMOSTAT
A97054
5
