Color Marks
Mark Color Mark Color Item
Meaning of Marks
Description Item Description
BK
BR
Black
Brown
RD Y／GRed Yellow／Green
WH White
OR Orange
CNA-CN20S
EEV A,EEV B
R
Compressor motor
Electric expansion valve
（coil）
Reactor
Tho-A
Tho-D
Heat exchanger sensor
Outdoor air temp. sensor
Discharge pipe temp. sensor
CM
Tho-R
Connector
20S 4 Way valve（coil）
Suction pipe temp. sensor
Tho-S
FMo Fan motor
Terminal blockTB1-TB3
（outdoor unit）
HEATER Crank case heater
FunctionColorIndication lamp
Warning lampRedLed e （1）
Self diagnosis function by led e
1 Time flash Current cut
2 Time flash Trouble of outdoor unit
3 Time flash Over current
4 Time flash Transmission error
5 Time flash Over heat of compressor
6 Time flash Error of signal transmission
7 Time flash Lock of compressor
8 Time flash Sensor error
（Except discharge pipe sensor）
Four sec light
and Discharge pipe sensor error
four sec off
Caution ・When the compressor does not run Immediately after
hitting on the button,wait for 5 to 10 minutes.（There is
possibility of delayed start.）
・High voltage is produced in the control box. don't touch
electrical parts in the control box for 5 minutes after
cutting power supply.
Light on Outdoor fan motor error
WIRING DIAGRAM
EEV
S
BK
WH
RD
V
W
U
FM0
CM
R
CNTH
CNFAN
S-2
BK
WH
WH
S-1
CNSUB
CNMAIN
S
R
BK
WH
IN
IN
S
R
O
O
250V 15A
FUSE
CN20S
G2
Y／G
C-2
RD
C-1
CN20V
CN20V
5
2
G1
Y／G
G
Y／G
CNEEV1
CNTH
TB2
CNA
CNB
TB1
N
L
A
EEV
B
Y／G
WH
BK
UNIT A
UNIT B
M
3～
M
M
M
POWER
SUPPLY
WH
RD
PWB 2（SUB）
PWB 1（MAIN）
20S
HEATER
WH
RD
CNHEAT
T2
T1
R
OR
YE
3
2
1
BK
WH
RD
3
2
1
BK
WH
BR
TB3
2 2 2
t゜
t゜
t゜
t゜
2
Tho-S
Tho-R Tho-A Tho-D
YE Yellow
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