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4
Wiring diagram
1. Wiring diagram of indoor unit
Symbol
Name
FM
Motor for airflow (built-in thermal protector)
Central
RC
Running capacitor
outdoor unit
controller
P Q
TR1,2
Supply transformer
terminal
TA
Ambient temperature sensor
Indoor & outdoor
Q
X Y
P
communication
BR
BR
GR
Indoor heat exchange sensor
TC1A
terminal
Indoor heat exchange sensor
TC2
Fan control relay
RY01,02,03,04
Fan control relay
RY05
Control relay for drainage pump
RY06
Control relay for air deflector
RY07
JEMA standard HA terminal-A
HA
GM1,2
Motor for air deflector
F1
Fuse 5A 250VAC
Electronic expanding valve
PMV
TNR
Piezoresistance
DSA
Discharge tube
LED indicates
LED
D08
Orange Serial signal input of linear controller
Green
Serial signal output of linear controller
D10
Red
Indoor abnormality
D16
Yellow LAN signal output of outdoor unit
D17
1. indicates terminal block; internal words
express code of terminal block.
2. Dotted line indicates wiring on the spot.
3.
indicates PCB
4.For the method of connecting with outdoor unit, please refer to the wiring diagram attached to each model.
Symbol
Name
FM
Motor for airflow (built-in thermal protector)
Running capacitor
RC
Centralized
Supply transformer
TR
control
outdoor unit
P Q
Ambient temperature sensor
TA
terminal
Indoor heat exchange sensor
Indoor & outdoor
TC1A
P
Q
X Y
communication
BR
BR
GR
Indoor heat exchange sensor
TC2
terminal
Fan control relay
RY01,02,03,04
Control relay for electrical heater
RY05
Control relay for drainage pump
RY06
RY07
Control relay for air deflector
HA
JEMA standard HA terminal-A
GM
Motor for air deflector
F1
Fuse 5A 250VAC
Electronic expanding valve
PMV
TNR
Piezoresistor
Discharge tube
DSA
LED indicates
LED
D08
Orange Serial signal input of linear controller
D10
Green Serial signal output of linear controller
D16
Red
Indoor abnormality
D17
Yellow LAN signal output of outdoor unit
1. indicates terminal block; internal words
express code of terminal block.
2. Dotted line indicates wiring on the spot.
3.
indicates PCB
4.For the method of connecting with outdoor unit, please refer to the wiring diagram attached to each model.
Convertible type circuit diagram
Special indoor unit for mrv intelligent
network air conditioner
FM
Remote controller
OR
R
BL
A
B
C
D
6
5
4
3
6
5
4
3
A
B
C
AC12.5V
Sealing-in
OR
R
BL
CN6 W
TC2
B
TA
OR Y
HA
GR
TC1A
CN14
W
CN26
JEM-A
CN04
CN05
CN21
CN02
1 2 3
1 2 3 4 5 6 7 8
2
1
1 2 3 4
2
1
3
2
1
3
2
1
9
7
5
3
B
W
W
R
W
1 2 3
1 2 3 4 5 6 7 8
2
1
1 2 3 4
2
1
3
2
1
3
2
1
9
7
5
3
1
1
2
2
CN15
W
1
1
MCC-1334
RY
RY
2
2
RY
RY
01
02
03
04
3 3
RY05
CN24
B
1
1
TNR
2
2
CN12
W
TNR
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
3
RY06
CN23
CN13
CN01
RY07
W
1
2
3
4
5
6
W
1
2
3
4
5
6
W
1
2
3
4
1
3
DSA
CN16
pressure
pressure
BL
sensor
sensor
1
3
5
CN03
7
5
3
1
CN10
TR1
W
BL
1
3
5
7
5
3
1
R W B
R W
1
2
3
4
5
6
1
2
3
4
5
6
R
L
F1
Y/G
MCC-1336
TR2
R
L
N
1
2 3 4 5
CN6
1
2 3 4 5
W
OR
BL Y OR R
Indoor unit power
1
2 3 4 5
1
2 3 4 5
1PH,220-230~,50Hz
CM2
Wiring diagram
FM
Special indoor unit for MRV
intelligent network air conditioner
Remot controller
OR
R
BL
A
B
C
D
6
5
4
3
6
5
4
3
A
B
C
AC12.5V
CN6 W
Sealing-in
OR
R
BL
TC2
OR Y
BL
TA
HA
TC1A
GR
W
CN26
JEM-A
CN04
CN05
CN21
CN02
1 2 3
1 2 3 4 5 6 7 8
2
1
B
1 2 3 4
2
1
3
2
1
3
2
1
9
7
5
3
W
W
R
W
1 2 3
1 2 3 4 5 6 7 8
2
1
1 2 3 4
2
1
3
2
1
3
2
1
9
7
5
3
1
1
2
2
CN15
W
1
1
MCC-1334
2
2
RY
RY
RY
RY
02
03
01
04
3 3
RY05
CN24
B
1
1
TNR
2
2
CN12
W
TNR
1
2
3
4
5
6
1
2
3
4
5
6
7
5
3
1
1
3
CN13
CN01
RY06
RY07
CN23
1
2
3
4
5
6
1
2
3
4
5
6
7
5
3
1
1
3
W
W
DSA
W
CN16
BL
1
3
5
CN03
7
5
3
1
pressure sensor
CN10
TR1
1
3
5
W
BL
7
5
3
1
R W B
F1
Y/G
L
N
Indoor unit power supply
1PH,220-230V~,50Hz
16
Switch function
Rotary switch
For setting unit code of indoor unit
SW01
SW02
Dial switch (7P) For setting centralized control address
SW03
Dial switch (3P)
For TA temperature modification when heating
Dial switch (1P) For emergency running
SW04
Dial switch (4P) For setting HP of indoor unit
SW05
Dial switch (2P) For testing rated capacity
SW07
RC
Setting content of dial switch
Settingstate whendelivering
B W
2
1
Setting of TA
2
1
temperature
SW03
B W
4deg
when heating;
(TA setting)
Modification
1
CN07
BL
6deg
1
1
1
CN19
2
2
W
W
3
3
When it is in ON state,the max. power will betransferred into ratedpower after 29 minutes
OFF
CN17
1
1
W
2
2
SW07
CN08 R
1
1
ON
3
3
5
5
7 7
R
CN25
1
1
W
6
6
2
2
4
4
Y
OR
3
3
3
3
PMV
BL
Inspection
Inspection part (Inspection place:indoor unit)
4 4
1 1
5
5
BR
2
2
code
6 6
5 5
R
3
1
CN09
Ambient temperature sensor (TA) circuit
OC
3
1
W
B B
12
Ambient temperature sensor (TA) circuit
Indoor base plate circuit
93
94
Indoor heat exchange sensor (TC1A) circuit
Indoor heat exchange sensor (TC2) circuit
97
98
Centralized control communication circuit
3
1
CN4
W
3
1
Centralized control address setting
99
Linear controller mismatch wiring
9A
Mismatch wiring of indoor unit
9F
Judgement for insufficient circulation of refrigerant
b5
Expression of external output
b6
1
2 3 4 5
Expression of external interlocking
CN5
b9
1
2 3 4 5
W
Circuit of indoor pressure sensor
OR BL Y OR R
Ed
1
2 3 4 5
1
2 3 4 5
Ed
Expression of insufficient refrigerant
CM1
Switch function
SW01
Rotary switch
For setting unit code of indoor unit
SW02
Dial switch (7P) For setting centralized control address
SW03
Dial switch (3P)
For TA temperature modification when heating
Dial switch (1P) For emergency running
SW04
RC
Dial switch (4P) For setting HP of indoor unit
SW05
Dial switch (2P) For testing rated capacity
SW07
B W
2
1
2
1
Setting content of dial switch
B W
Setting state
when
CN07
1
delivering
BL
1
Setting of TA
SW03
temperature
1
1
CN19
2
2
W
4deg
when heating;
(TA setting)
3
3
W
Modification
CN17
1
1
W
2
2
6deg
CN08 R
1
1
3
3
5
5
When it is in ON state,the max. power will
OFF
7 7
be transferred into
CN25
R
SW07
rated power after 29
W
1
1
6
6
4
4
Y
2
2
minutes
3
3
OR
3
3
PMV
ON
4 4
1 1
BL
BR
5
5
2
2
R
6 6
5 5
5 5
3
1
CN09
W
3
1
B B
I n s p e c t i o n p a r t ( I n s p e c t i o n p l a c e :
Inspection
code
i n d o o r u n i t )
1
2
OC
Ambient temperature sensor (TA) circuit
1
2
12
Ambient temperature sensor (TA) circuit
93
Indoor base plate circuit
GM
Indoor heat exchange sensor (TC1A) circuit
94
W
97
Indoor heat exchange sensor (TC2) circuit
Centralized control communication circuit
98
99
Centralized control address setting
9A
Linear controller mismatch wiring
9F
Mismatch wiring of indoor unit
b5
Judgement for insufficient circulation of refrigerant
Expression of external output
b6
Expression of external interlocking
b9
Circuit of indoor pressure sensor
Ed
Expression of insufficient refrigerant
Ed
: http://splitoff.ru/tehn-doc.html
ON
ON
ON
ON
ON
ON
ON
1
1
1
2
1
2
1
2
1
2
1
2
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