Mitsubishi Mr.SLIM PUH18EK - Page 12

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MODELS : PUH24EK PUH24EK1
PUH30EK PUH30EK1 PUH30EK2
FAN CONTROLLER
FUSE(6A)
4-WAY VALVE SOLENOID COIL
BYPASS VALVE SOLENOID COIL
21R
21S4
F(O.B)
FC(O.B)
LED(CHECK,SERVICE)
LD1~LD8
MC
COMPRESSOR MOTOR
(INNER THERMOSTAT)
FAN MOTOR(INNER THERMOSTAT)
MF1,2
O.B
SW1•2•3(O.B)
T
TB1,3
RT
OUTDOOR COIL THERMISTOR
(32°F/15K',77°F/5.4K')
TERMINAL BLOCK
TRANSFORMER
SELECT SWITCH(CHECK,SERVICE)
OUTDOOR CONTROLLER BOARD
HC RELAY
X11(O.B)
PROTECT HIGH PRESSURE SWITCH
CONTROL HIGH PRESSURE SWITCH
COMPRESSOR CONTACTOR
VARISTOR
21R RELAY
21S4 RELAY
COMPRESSOR RELAY
X13(O.B)
X12(O.B)
X14(O.B)
ZNR(O.B)
52C
63H1
63H2
C1,2
C
COMPRESSOR CAPACITOR
FAN MOTOR CAPACITOR
CRANKCASE HEATER
HC
RED
RED
BLU
WHT
WHT
BLU
4
3
2
4
3
2
BLU
WHT
BLU
WHT
BRN
YLW
RED
ORN
RED
GRY
GRY
RED
WHT
WHT
1
1
X11X12X13
1234
CN2
63H263H1
BRN
3
1
X13X14
X14
SV
RED
RED
21R
21S4
21
S4
BLK BLK
MF1
MF2
C2
BRN
YLW
ORN
C1
RED
52C
1/L1
5/L3
6/T3
2/T1
BLU
WHT
BLU
C
RED
S
C
MC
R
63H1
BRN BRN
RED RED
GRN
T
LED
ORN
YLW
1
2
TB3
GR
L2
L1
RED AC12.3V
BRN AC12.3V
RED
ORN
BLK
RED
BLK
RED
230V
208V
4
1234
CN4T
CN3
2
3
12
SW3
SW2
O.B
SW1
TO INDOOR UNIT
CONNECTING WIRES
DC 12V (polar)
TB1
POWER SUPPLY
1[ 208/230V
60Hz
ON
OFF
LD7 LD1 LD2 LD3 LD4 LD5 LD6 LD8
WHT
WHT
F
5
RT
X11X12
CN4
TRF 52C
WHT WHT
GRY GRY
S
A1
A2
52C
HC
CH
ZNR
R/1 S/2 T/3
BLU BLU
YLW YLW YLW YLW
BLU BLU WHT
BLU
WHT
FC
26C
63H2
51CM
MF2
MF1
Since the indoor and outdoor connecting wires has polarity,make sure to connect the same terminal numbers(1,2,3)for indoor and outdoor units.
CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES
wiring connection in the following Procedure.
Since the indoor transformer(T) is connected with 230V power,if 208V power is used,change the
2. Symbols used in wiring diagram above are. :Terminal block :Connector :PC board insertion tab.
Bypass valve ON
4-Way valve ON
63H1 ON
Heating indoor command
ORANGE
230V
WHITE
RED
208V
When Power Supply is 208Vw
White connector
S
to output display(light).
in flushing mode. Pressing the switch again returns
SW2
but pressing displays the past check contents
The output display (light) remains during operation
loaded on the microcomputer.
SW1
Pressing erases the past check contents
SW3
(when both No.1 and 2 of are"OFF")
How to use SW1 and 2
Since LD8 lights when normal power is turned"ON",check the power supply with the"ON"or"OFF"LD8.
CAUTIONS FOR POWER SUPPLY WIRING
The compressor stops by disconnecting the white connector as shown at the right.
The connector marked is to turn the compressor ON-OFF during servicing.
CAUTION FOR SERVICING
1. If the operation stops to function of the protection device,the check display flushes.
NOTES:
Defective input
RT overheat protection
63H2 functions
Pipe temp.sensor short/open
Check display(flush)
Crankcase heater ON
Outdoor fan ON
Compressor ON
Compressor indoor command
Output display(light)
LD8
LD7
LD6
LD5
LD4
LD3
LD2
LD1
LED NO.
ÆÆ
Main functions of LED
w
OC245-C--1.qxp 02.12.19 9:58 AM Page 12