Carrier 38MGR Series Service Manual page 16

WIRING DIAGRAMS (CONT)
Size 30K
BLACK
RED
COMP
BLUE
Y/G
CODE
CN1~CN2 Input: 230VAC High voltage
CN5~CN6 Output: 230VAC High voltage
P-1 Connection to the earth
CN10~CN44 Output: 230VAC High voltage Chassis Crankcase Heater
CN4~CN40 Output: 230VAC High voltage Compressor Crankcase Heater
CN3~CN22 Output:230VAC High voltage
CN17~CN21 Output: Pin1-Pin4: Pulse waveform (0-12VDC), Pin5, Pin6 (12VDC)
CN7 Output: Pin1 (12VDC), Pin2 (5VDC), Pin3 (EARTH)
CN27~CN30 Output: Pin 2~Pin 3 (230VAC High voltage) - IDU Power & "S"
CN13 Pin1, Pin3, Pin5, Pin7, Pin9 (5VDC); Pin2, Pin4, Pin6, Pin8, Pin10 (0-5VDC)
CN33 Input: Pin1 (0-5VDC), Pin2 (5VDC) - Discharge Temp
CN8 Input: Pin3, Pin4 (5VDC), Pin2 (0VDC), Pin1, Pin5 (0-5VDC) T3 & T4
CN9 Input: Pin2, Pin4 (0VDC), Pin1, Pin3 (0-5VDC) H/L Pressure Switches
16
Applicable to the units
adopting DC motor only
3
FM1
Y/G
3
4-WAY1 SV
BLUE
7
BLUE
HEAT_Y
HEAT_D
BLACK
RED
L
L1 L2
L1(A) L2(A) S(A)
Fig. 16 — Size 30K - 4 Zone Max
Table 10 — Size 30K 4 Zone Max Codes
Specifications subject to change without notice.
CN41 CN9
CN43
BLUE CN42
CN3
CN22
BLUE
RED
CN4
BLACK
CN40
RED
CN10
CN44
BLACK
7
CN7
CN5
CN6
CN1
CN2
3 3
L1(B) L2(B) S(B)
TO A TO B
Y/G
Y/G
PART NAME
5(6)
CN8 CN33 M
A CN20
5(6)
M
B CN21
5(6)
EEV
M
C CN17
5(6)
M
D CN18
5(6)
M
E CN19
P-1
Y/G
3 3
L1(C) L2(C) S(C) L1(D) L2(D) S(D)
TO C TO D
Y/G Y/G
38MGR-04SM