Carrier 38MBR series - Page 10

10
WIRING DIAGRAMS (CONTINUED)

IPM & PFC BOARD
MAIN BOARD
WIRING DIAGRAM (OUTDOOR UNIT)
CN15
A
ELECTRONIC
EXPANSIVE
V
A
L
VE A
CN12
TH
CN10
RED
ORP
-
L
H-PRO
CN9
T4
T3
T
N
EI
BM
AR
O
SN
ES
P
MET
EPIP
R
O
SNES.
D
12
3
4
5
CN36
P5
CN19
CN20
CN28
CN24
CN25
CN31
CN17
FAN1
CN18
HEAT_D
OPTIONAL
HEAT_Y
OPTIONAL
SV
4-WAY
BLUE
RED
BLUE
CN4
CN2
CN3
CN1
COMP
U
V
W
Y/G
Ferrite bead
CH2
CN6
CN9
10
3
CN1
CN2
L
YELLOW
YELLOW
U
V
W
BLUE
BLACK
RED
WIHTE
/RED
BLACK
RED
BLACK
Ferrite bead
CH1
CT1
DCFAN2
DCFAN1
Y/G
Y/G
DC MOTOR
DRIVER BOARD
CON1
FAN1
CN1
FAN2
3
3
P6
2
CN6
CN3
Y/G
BLACK
TO INDOOR COMM. BUS
XT2
WOL
LEY
YARG
S1
S2
NOTEφ
shielded wire.
Please use 2-core
2
L2
L1
MAIN POWER SUPPLY
XT1
TO INDOOR UNIT
(1)L1
Y/G
XT2
OPTIONAL
N
L
P9
P7
P8
CN22
RED
BLUE
/BLACK
CN8
PAIQI
ORANGE
ORANGE
RED
BLACK
CH2
Ferrite bead
Ferrite bead
Ferrite bead
CH2
CH2
~
~
~
Ferrite bead
Ferrite
bead
Notes:
This symbol indicates the element
is optional,the actual shape shall
b
e prevail.
(2)L2
(1)N
(2)N
CN34
CN32
CN27
YELLOW
Fig. 6 – Wiring Diagram − Size 48K
OUTDOOR UNIT MAIN BOARD
CODE PART NAME
CN1~CN3 Input: 230VAC High voltage
P7~P8 Output: 230VAC High voltage to IDU
P5,P6,P9 Connection to the earth
CN22 Output:-24VDC-24VDC for IDU Communication
CN17~CN18 Output: 230VAC High voltage 4 way valve
CN19~CN20 Output: 230VAC High voltage Chassis Crankcase Heater
CN24~CN25 Output: 230VAC High voltage Compressor Crankcase Heater
CN2~CN4 Output: 230VAC High voltage to AC CURRENT DETECTOR
CN12 Input: Pin1 (0-5VDC),Pin2 (5VDC) Heatsink Temperature Sensor
CN8 Input: Pin1 (0-5VDC),Pin2 (5VDC) Compressor Top Sensor(PAIQI)
CN9 Input: Pin3,Pin4 (5VDC),Pin2 (0VDC),Pin1,Pin5 (0-5VDC) the ambient sensor and pipe sensor
CN10 Input: Pin2, Pin4 (0VDC),Pin1,Pin3 (0-5VDC) for the H/L pressure switch
CN15 Output: Pin1-Pin4: Pulse waveform (0-12VDC),Pin5, Pin6 (12VDC) EEV
CN6 Output: Pin1-Pin6: Pulse waveform (0-5VDC), Pin7, Pin9 (0VDC) Pin8 (0-5VDC), Pin10 (5VDC)