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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
OO
YY
SYSTEMS WITHOUT
OUTDOOR THERMOSTAT
FB4ASX
FAN COIL
W2W2 W2
CCC
R
R
G
THERMOSTAT
R
G
HEAT PUMP
E E
L
OO
YY
FB4ASX
FAN COIL
W2
W3
W2
W2
CCC
R
R
G
THERMOSTAT
R
G
ODTS
BLU
SYSTEMS WITH ONE
OUTDOOR THERMOSTAT
A97054
5