Carrier 38YCX User Manual

Page 5

background image

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