Control Wiring - Carrier Air Conditioner Operation And Service Manual

1
1
2
2
3
3
4
4
5 TB5
5
BLU
MBB,
PLUG J8 6
TB5
BLU
6
7
TB5
PNK
7
8
TB5
8 PNK
9
9
Fig. 36 — Accessory Sensor

Control Wiring

MAIN BASE BOARD
PLUG
J10A
K11
LEGEND FOR FIG. 36-41
ALM — Alarm
CWFS — Chilled Water Flow Switch
CWP — Chilled Water Pump
CWPI — Chilled Water Pump Interlock
CXB — Compressor Expansion Board
HGBPS — Hot Gas Bypass Switch
LWT — Leaving Fluid Temperature
MBB — Main Base Board
OAT — Outdoor-Air Temperature Sensor
SPT — Remote Space Temperature Sensor
SW — Switch
TB — Terminal Block
UL — Unloader
Field Supplied Wiring
Factory Wiring
SPT ACCESSORY
T10
5
6
T9
7
8
OAT ACCESSORY OR
DUAL CHILLER LWT.
(MASTER CHILLER)
1
1
2
2
TB5
3
3 GRA 9
BLK
4
4
Fig. 38 — Hot Gas Bypass Control Wiring (115 V, 230 V)
CWPI
CWFS
TB5
13
REMOTE
RED
ON-OFF SWITCH
REMOTE
CONTACT A
SW1 OFF
RED
C
ENABLE
B
RED
DUAL SETPOINT
Fig. 37 — Control Wiring (24 V)
HGBPS-A
VIO
HGBPS-B
VIO
68
TB5
2
10
ORN
10
TB5
1
9
ORN 9
TB5
14
8
RED
8
7
RED 7
6
4 GRA
6
TB5
5
TB5
GRA 5
3
12 TB5
GRA
HGBPS-B
GRA
GRA 12 TB5
MBB,
PLUG J7