Carrier 38BYW Installation And Start-Up Instructions Manual page 8

OTHER
HP THERMOSTAT
24 VAC HOT R
C
24 VAC COM
COOL/HEAT
Y
STAGE 1
G
INDOOR FAN
RVS COOLING O
EMERGENCY
E
HEAT
HEAT STAGE 2
W2
Fig. 12—Typical 24-v Circuit Connections using Other HP Thermostats with Smart Heat and No Outdoor
Thermostat, 1 Outdoor Thermostat, or Supplemental Heat Relay
FA, FB, FC, FH
FAN COIL HEAT
PUMP
SMART HEAT
R
R
C
C
Y
G
O
O
W2
W2D
JW1
W2T
W3
Y
Y
0
OTHER
HP THERMOSTAT
24 VAC HOT R
C
24 VAC COM
COOL/HEAT
Y
STAGE 1
G
INDOOR FAN
RVS COOLING O
EMERGENCY
E
HEAT
HEAT STAGE 2
W2
OTHER
HP THERMOSTAT
24 VAC HOT
24 VAC COM
COOL/HEAT
STAGE 1
INDOOR FAN
RVS COOLING
EMERGENCY
HEAT
HEAT STAGE 2
A97410
FA, FB, FC, FH
FAN COIL
SMART HEAT
R
C
Y
G
O
SHR W2D
CUT
JW1
W2T
SHR
ODT
W3
Y
0
8
FA, FB, FC, FH
FAN COIL
SMART HEAT
R R
C C
Y Y
G G
O O
E W2D
W2 W2T
ODT
W3
Y
0
HEAT
PUMP
R
C
O
W2
Y
A97412
HEAT
PUMP
R
C
O
W2
CUT
JW1
Y
A97411