Carrier 38YSA - Manual (Page 9)

FAN COIL
Y
W
C
R 24 VAC HOT
24 VAC COM
HEAT STAGE 2
COOL/HEAT
STAGE 1
INDOOR FAN
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL HP
HEAT
PUMP
RVS COOLING
EMERGENCY
HEAT E
W3
G
R
FK4B
R
W2
Y Y/Y2
G
W2
C C
O O O
Y1
E
L
A95279
FAN COIL
Y
W
G
R 24 VAC HOT
24 VAC COM
HEAT STAGE 2
COOL/HEAT
STAGE 1
INDOOR FAN
RVS COOLING
EMERGENCY
HEAT
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL HP
HEAT
PUMP
E
C
R
G
W2
O
Y
O
W2
R
C C
FA, FB, FC,
FD, FF
A95280
R
G
W/W1
ODT
Y/Y2
Y1/W2
O/W2
CORPORATE
THERMOSTAT
MODEL HP
INDOOR
SPLICE
CONNECTION
OUTDOOR
SPLICE
CONNECTION
DEFROST
BOARD
W1
W1
Y
W2
E
G
R R
O
C C
C
B
L
S1
S2
24 VAC HOT
FAN
HEAT
STAGE 2
COOL/HEAT
STAGE 1
RVS
COOLING
N/A
24 VAC COM
RVS
HEATING
USED WITH FB4, FB5, FC4, FA4, FH4 FAN COILS
(WITH 1 OUTDOOR TSTAT)
TROUBLE
OUTDOOR
SENSOR
CONNECTION
SYSTEM WITH ONE OUTDOOR THERMOSTAT
A96528
R
G
W/W1
ODT
Y/Y2
Y1/W2
O/W2
CORPORATE
THERMOSTAT
MODEL HP
INDOOR
SPLICE
CONNECTION
OUTDOOR
SPLICE
CONNECTION
DEFROST
BOARD
W1
W2 W1
Y
G
R R
O
C C
C
EHR
B
L
S1
S2
24 VAC HOT
FAN
HEAT
STAGE 2
COOL/HEAT
STAGE 1
RVS
COOLING
N/A
24 VAC COM
RVS
HEATING
USED WITH FB4, FB5, FC4, FA4, FH4 FAN COILS
(WITH 2 OUTDOOR TSTATS)
TROUBLE
OUTDOOR
SENSOR
CONNEC-
TION
E
ODT
EHR
EHR
SYSTEM WITH TWO OUTDOOR THERMOSTATS
A96529
Fig. 12—Typical Circuit Connections (continued)
9