Service and Parts Manual (2018, 2019, 2020, 2021, 2022)

99 PB
WIRING DIAGRAMS
Figure 802 (Used With Inverter Board PN XXX)
EMI FILTER
INPUT_N
OUTPUT_N
OUTPUT_L
ACN
ACL
DC-
DC+
L
DC+
L
DC+
DC-
REACTOR
W
V
U
COMP
IPM BOARD
MAINBOARD
POWER BOARD
TERMINAL BLOCK
INPUT_L
RELAY
4
3
MB_COMM
POWER&RELAYS
MB_COMM
DISPLAY
MOD_COM
CONTROL
POWER&RELAYS
INFAN
OUTFAN
INNER
OUTER FAN
SW2
SW3
ON
ON
1 2 3 1 2
RD
BL
BK WH
BL
PANEL
BL
INNER FAN CAPACITOR
FAN
OUTER
FAN
BK BK
BK
WH
RD
BK （ BN ）
WH （ BL ）
GN(YE/GN)
POWER SUPPLY
BK-BLACK WH-WHITE BN-BROWN OR-ORANGE RD-RED
YE/GN-YELLOW/GREEN
BL-BLUE GN-GREEN
SW1 FUNCTION(ON-Enable, OFF-Disable)
1-Reserved
2-Heat pump
3-Electric heater
4-Reserved
5-Freeze protect
SW2 MODEL TYPE SWITCH
RD
OR
YE/GN
YE/GN
RD
OR
E.HEATER1_L
BL
BK
BK
FUSE
FUSE
YE/GN
COM
NO
4WAY
REVERSING VALVE
BL
BK(BN)
U
V W
1 2 3
4 5 6 7 8
SW1
SW2
ON
1
2 3
SW2
ON
1
2 3
ON
6-Auto restart 7-Reserved 8-Reserved
1 ON,2 OFF,3 OFF 1 OFF,2 ON,3 OFF
H-COM
HEATER1
HEATER2
TRANS_IN
TRANS_24V
E.HEATER2_L
T1
T2
T3
T4
T5
6
3
12
6
2
2
IN
OUT
6
CIRCUIT DIAGRAM
Note2
Note2
COLOR CODE
RD
ELECTRIC HEATER2
FUSE
FUSE
ELECTRIC HEATER1
T1-T3
COM
NO
T4
TRANSFORMER
RELAY2
REMOTE THERMOSTAT
BK
2
Note1
Note1
WARNING:
SWITCHES SW2 ARE FOBBIDEN TO CHANGE, OTHERWISE UNIT WILL FAIL TO WORK AND MAY
BE DAMAGED !
9K 12K
BK(BN)
COM
NO
E.HEATER_N
RELAY1
BL
485 PORT
WIRE
CONTROLLER
IR RECEIVER
3
YE/GN
POWER CONNECTOR
YE/GN
BK WH
2
BL
BK
RD
T6
2
T5
T6
N
DOOR
MOTOR
AIR
FAN
FRESH_AIR
JUMPER
Note3
SW3 FUNCTION GUIDANCE
Note3
1-Fresh Air Enable/Disable
2-Fresh Air CONTINUOUSLY
Running/CYCLES With Indoor Fan
BL
BK
RD
BL
RD
BK
RD
BL
CAPACITOR
DC-
24V FAN
RD
BK
ACN
BL
HIGH
LOW
FA+
FAL
FAH
FRESH AIE
FAN SPEED
SWITCH
BL
RD
BK
EARTH