112
Smart Power
1UH200W1ERK 1UH200W1ERK
CIRCUIT DIAGRAM OF OUTDOOR UNIT
0
1
2
3
SW 8
Definition
（
model
）
1UH090N1ERG
1UH105N1ERG
4
5
6
7
8
9
A
B
C
D
E
F
1UH125P1ERG
1UH250W1ERK
Reserved
Reserved
Reserved
Reserved
T
1
2
POWER SUPPLY
TO INDOOR UNIT
Y/G
3
N
COMPRESSOR
DRIVER
MODULE
1UH071N1ERG
L
E
D
1
L
ED
2
power
indicate
communication
indicate
T6.3A/250VAC
F
USE1
CN
2
DRED
CN
1
CN
14
CN10
CN23
CN
5
CN
3
CN
4
C
N6
CN
7
CN24
CN
8
CN
18
CN13
CN12
M
M
L
E
D
3
error&status indiate
O
N
SW6
O
N
4321
8765
0
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
S
W
8
S
W2
S
W3
S
W5
S
W4
MODE
UP
SET
DOWN
L
NSIG
M
E.E.V
CN19
SV1
CN17
SV2
CN20
CN16
CN9
W
U
V
U
V
W
RD
WHT
BLK
module
com1
C
N
15
CN22
Crankcase
heater
(CHTR)
4WV
Tcm
Td
Te
Ta
TS
Reserved
1UH140P1ERG
Reserved
Reserved
1UH140P1ERK
1UH125P1ERK
SW7
O
N
21
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7
SW1-8
ON
OFF
Manually
forced operation
Valid
Manually
forced operation
invalid
Manually
forced
cooling
Manually
forced
heating
low stand
by power
cost
normal
stand by
cost
Driver module
select unit≥
16KW
Refrigerant
R410A
Defrost
automatic
Defrost
by time
Not for
base
station
GND
S
CN8
5V
BLK
WHT
Y/G
SR
N
P
DC F
AN MOT
OR 1
DC F
AN MOT
OR 2
( UPPER MOTOR )
( LOWER MOTOR)
central
control
***************************************************************
Tcm:Temperature sensor of condenser’s middle position
Ts:Compressor suction temperature sensor
Te: Defrost tempreature sensor
Tao:Outdoor unit ambient temperature sensor
Td:Compressor dischargetemperature sensor
Tfin:Temperature sensor of driver module’s IPM
E.E.V:Electronic expansion valve
LP:Low pressure switch
HP:High pressure switch
DERD:Demand response enabling device
(Only used in
Australia and New Zealand area
）
***************************************************************
BLK:black WHT:white RD:red Y/G:yellow/green
Explanation of abbreviations 1:
BLU:blue
4WV:Four way valve
BMS:Building Management System
2.SW6 is used for central control adress selection
refer to service manual to get more details
3.Once out of factory ,do not change the switches
of SW1,SW6,SW7,SW8 without technical guidence.
4.Can do the parameters checking work by button
switches SW2/SW3/SW4/SW5 and digital display
LED 3,refer to service manual to get more details.
5.For maintenance safety ,please operate after pow-
er supply cut off at least 5 minutes.
CON1
Y/G
LP
HP
A
B
C1 C2
RD
BRN
BRN:brown
SW1
4321
8765
NOTE:
SW7-1
OFF
OFF
OFF
ON
ON
OFF
ON
ON
SW7-2
Definition
DERD test selcetion 0
DERD test selcetion 1
DERD test selcetion 2
DERD non-test selcetion
④Bottom heater
(BHTR)
③
BMS
⑤Refriger
ant R32
⑥Base
station
application
CENTRAL
CONTROLLER
/③BMS DEVICE
Parameters monitor
adaptor /②
Hydro unit
①external dry contact
input(
ON/OFF signal）
1.Dashed parts are optional.marks①②③④
⑤⑥⑦are function in future.
CN7
Tfin
CN3
＋
＋
CB1
R1 R2
CB2
L1’
L2’
L3’ N’
E’
L1
FILTER BOARD
L2
L3 N
E
REACTOR
＋
12
3
5
4
PTC
RELAY
1
3
2
BLK
BLK
CN9
4
RECTIFIER
1UH200W1ERK
Driver module
select unit
<16KW
BLK
BLK
BLK
WHT
WHT
WHT
BLK
WHT
Y/G
CONTROL BOARD
RD
WHT
BLK
BLU
-
-
CB1,2:Electrolytic capacitor
BLK
WHT
RD
BLK
RD
RD
BLK
BLK
0150526773
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