
– 22 –
Split Inverter Air-to-Water Heat Pump
12
V
485
A2
485
B2
GN
D
12
V
485
A1
485
B1
CN
2
RO 16
CA
N-
L
GN
D
5V
GN
D
CA
N-
H
12
V
12
V
485
A3
485
B4
GN
D
AI 01
AI 02
AI 03
AI 04
AI 05
AI 06
AI 07
AI 08
AI 09
AI 10
AI 11
AI 12
AI 13
AI 14
AI 15
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
DI 01
DI 02
DI 03
DI 04
DI 05
DI 06
DI 07
DI 08
DI 09
DI 10
GND
GND
DO1-PWM
AO1
DI1-PWM
AO2
DO2-PWM
DI2-PWM
DO3-PWM
DI3-PWM
DO4-PWM
DI4-PWM
DO5-PWM
DI5-PWM
RO 15
RO 14
RO 13
RO 12
RO 11
RO 10
RO 09
RO 08
RO 17
RO 18
RO 07
RO 06
RO 05
RO 04
RO 03
RO 02
RO 01
L1
L2
CN
1
CN
3
CN
4
L1 L2
GND
1 2 3 4 5 6
48
5A
48
5B
12
V
485
A2
485
B2
GN
D
YE
L
BL
K
BL
U
BL
K
BL
U
YE
L
RE
D
BL
K
WH
T
GRN
SPL-WG1362-02
FM1
FM2
FAN MOTORS
FAN SPEED CO
NTROLLER
CN
14
BLK
BLK
YEL
RED
COMPRESSOR SPEED
CONTROLLER
BL
K
WH
T
L2
L1
L2
L1
L1 IN
L2 IN
W
V
U
P1 P2
PE ACNACL L1 L2
W
V
U
COMP
KM
1
PT
C*
*PTC POST
IT
IVE TEMP
ER
ATURE COEFFICIEN
T
OV
ER
CURRENT
PR
OTECTI
ON
EMI FILTER
BOAR
D
01
L2
L2
L2
L1 OU
T
L2
OU
T
CRANKCASE HEATER
CONDENSATE PAN HEATER
REVERSING VALVE
4V
SUT
10k
EIT
10k
EOT
EEV
EIV
COMMUNICATION TO INDOOR MODULE
10k
10k
CT
AT
10k
ET
10k
REACTOR
REMOTE ENABLE
REMOTE HEAT/COOL
POWER INPUT, 230v,40A 1PH
L1
L2
GND
SUT
CT
AT
ET
EIT
EOT
10k
10k
EOT
EOT
FACTORY WIRING
FIELD WIRING RELAY
L1 L2
AT
COMP
CH
CT
EEV
EIT
EOT
ET
LP
SUT
4V
AMBIENT TEMPERATURE
COMPRESSOR
CRANKCASE HEATER
COIL TEMPERATURE
ELECTRONIC EXPANSION VALVE
EVI INLET TEMPERATURE
EVI OUTLET TEMPERATURE
EXHAUST (DISCHARGE) TEMP.
LOW PRESSURE
SUCTION TEMPERATURE
4-WAY (REVERSING) VALVE
PH
PAN HEATER
PC8002
Section 4: Wiring
Figure 4.1 SIS Outdoor Unit