Wiring Diagram - Carrier 38MPRA Series Service Manual

WIRING DIAGRAM

Sizes 09K to 12K
BASE PAN HEATER
Y/G
BLUE
L1
L2
Y/G
TO INDOOR UNIT
CODE
CN2 Output: communication signal (to indoor unit)
CN7, 8 Input: 220 VAC High voltage (to indoor unit)
CN60 Output: 220 VAC for 4-way valve control
CN16 Output: 220 VAC High voltage to crankcase heater
CN414 Output: Pulse (0-320VDC) to outdoor fan motor
CN5 (CN4) Output: 220 VAC High voltage to base pan heater
ABBREVIATION
SG-38MPRA-02
OUTDOOR
DC FAN
3
CN4
CN414
CN16
CN6-1
CN8
CN3
CN7
CN2
BLACK
S L1 L2
L1 L2
POWER SUPPLY
Fig. 6 —Wiring Diagram - Sizes 09K and 12K
Table 6 — Diagram Sizes 09K and 12K (208-230V)
PART NAME
Table 7 — Abbreviation
4-Way
AC-FAN
DC-FAN
CT1
COMP
L-PRO
H-PRO
Specifications subject to change without notice.
OUTDOOR
MAIN
PCB
CN18
CN1
WHITE
OUTDOOR AMBIENT
ELECTRONIC
TEMPERATURE SENSOR
EXPANSION
VALVE
CONDENSER
TEMPERATURE SENSOR
CODE
CN12,CN13
U V W Output: Pulse (0-320VDC) to compressor
Input: Pin1-Pin2 (0-5VDC) from discharge temperature
CN10
Input: Pin1, Pin3, Pin4, Pin5 (0-5VDC) from condenser
CN1
and outdoor ambient temperature sensors
CN6-1
CN18 Output:Pin5&6 (12V) to electronic expansion valve
Refrigerant Valve Assembly / 4-WAY VALVE
Alternating Current FAN
Direct Current FAN
AC Current Detector
Low Pressure Switch
High Pressure Switch
BLUE
CN13
CN12
BLUE
1
U
2
V
CN30
3
W
CN10
U
V
W
COMPRESSOR
Y/G
DISCHARGE SENSOR
16022000019211
OUTDOOR WIRING DIAGRAM
PART NAME
Output: High voltage to reactor
sensor
Ground Connector
PARAPHRASE
Compressor
9