Carrier 38EYA Installation And Start-Up Instructions Manual page 10

CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL HP
24 VAC HOT R
INDOOR FAN G
W/W1
HEAT STAGE 2
COOL/HEAT
Y/Y2
STAGE 1
RVS COOLING O/W2
NOT USED Y1/W2
C
24 VAC COM
NOT USED B
TROUBLE L
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
Fig. 16—Typical 24-v Circuit Connections using Carrier Model HP Thermostat with Smart Heat and No Outdoor
Thermostat, 1 Outdoor Thermostat, or Supplemental Heat Relay
FA, FB, FX
FAN COIL WITH HEAT
SMART HEAT PUMP
R
R
C
C
Y
G
O
O
W2
W2D
JW1
W2T
W3
Y
Y
0
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL HP
R
24 VAC HOT
G
INDOOR FAN
HEAT STAGE 2 W/W1
COOL/HEAT
Y/Y2
STAGE 1
RVS COOLING O/W2
NOT USED Y1/W2
24 VAC COM C
NOT USED B
L
TROUBLE
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL HP
24 VAC HOT
INDOOR FAN
HEAT STAGE 2
COOL/HEAT
STAGE 1
RVS COOLING
NOT USED
24 VAC COM
NOT USED
TROUBLE
OPTIONAL
OUTDOOR
SENSOR
CONNECTION
A97566
FA, FB, FX
FAN COIL WITH
SMART HEAT
SUPPLEMENTAL
HEATING
RELAY
R
C
SHR
Y
G
O
W2D
CUT
JW1
W2T
SHR
ODT
W3
Y
0
10
FA, FB, FX ONE
FAN COIL WITH OUTDOOR
SMART HEAT THERMOSTAT
R R
G C
W/W1 Y
Y/Y2 G
O/W2 O
Y1/W2 W2D
CUT
JW1
C W2T
ODT
B W3
L Y
0
S1
S2
HEAT
PUMP
R
C
O
W2
Y
HEAT
PUMP
R
C
O
W2
Y
A97567
A97568