Mitsubishi Electric Mr.Slim PLH42AK, Technical & Service Manual

Page: 26 / 73

OC193-24
MODELS PCH30EK
1
PCH36EK
1
PCH42EK
1
WIRING DIAGRAM
GRN
FS
WHT
YL
W
208V
AC
PCH36EK only
RED
H
FS
RED
CN22
REMO
TE CONTR
OLLER
INDOOR UNIT
MF
MV
ML
H
BLK
GRN
RED
BLK
RED
3 88H1 5
3 88H2 5
TB1
H2
88
H1
88
7
7
8
GRY 8
YLW
T
A
C11V
A
C15.5V
230V
AC
RED
LS
FS
26H
BLK
RED
GRY
YLW
WHT
RED
BLK
BLK
1 BLU
L1
L2
GROUND
1 PHASE
208/230V 60Hz
POWER SUPPLY
C
BLK BLK
WHT
BRN BLU YL
W
BLK
RED
ORN
ORN RED BLK YL
W
BLK BLK
GR
Y
GR
Y
BRN BRN
2
1
6
5
9 3 2 4 5 1 8
3 1
6 1 2 3 4 5
RED BLK WHT BRN BLU BLK ORN ORN GR
Y
GR
Y
BRN BRN WHT YL
W
BRN BRN RED RED YL
W
DC12V(polar)
CONNECTING WIRES
TO OUTDOOR UNIT
TB2
1 YLW
2 ORN
3 BRN
GRN
YL
W
2 BLU
TRANSMISSION WIRES
DC12V
F ZNR
X2
X3
X6 X5 X4
X2 X3 X6 X5 X4
R S M3 M2 MO M1 VANE LOUVER TRANS
CN40
POWER
REMOCON
CN4T
TRANS
CN24
HEATER
CN30
OUTDOOR
TB3
REMOCON
TO
CN23
POSITION
VANE
1 2 3 4
1 2 1 2 3 1 2
1 2 1 2 3 4
DRAIN
CN50
INTAKE
CN20
PIPE
CN21
D.U.M
CN27 CN51
CONTROL
CENTRALLY
1 2 1 2
1 2 3 4 5
I.B
SW3 SW1 SW6 SW5 SW2
ON
OFF
654321 987654321 4321 4321 10
TH2 TH1
SW17
SW18
ON
OFF
87654321
87654321
ON
OFF
R.B
1
2
TB6
CN2L
LOSSNAY
CN2
CN1
1 2 3
1 2 3 4 5
SYMBOL
C
CN1<R.B>
CN2<R.B>
CN27<I.B>
CN51<I.B>
CN2L<I.B>
F<I.B>
FS
FS
H
I.B
NAME
FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
DRAIN UP MECHA CONNECTOR
CENTRALLY CONTROL CONNECTOR
LOSSNAY CONNECTOR
FUSE (6A)
THERMAL FUSE (219˚F 10A)
(PCH36EK)
THERMAL FUSE (230˚F 16A)
(PCH30EK)(PCH42EK)
HEATER ELEMENT
INDOOR CONTROLLER BOARD
SYMBOL
LS
MF
ML
MV
R.B
TH1
TH2
SW1<I.B>
SW2<I.B>
SW3<I.B>
SW5<I.B>
NAME
LIMIT SWITCH
FAN MOTOR (INNER THERMOSTAT)
LOUVER MOTOR
VANE MOTOR
REMOTE CONTROLLER BOARD
ROOM TEMPERATURE
THERMISTOR(32˚F/15k
"
, 77˚F/5.4k
"
)
PIPE TEMPERATURE
THERMISTOR(32˚F/15k
"
, 77˚F/5.4k
"
)
MODE SELECTOR SWITCH
ADDRESS SELECTOR SWITCH
EMERGENCY OPERATION SWITCH
MODEL SELECTOR SWITCH
SYMBOL
SW6<I.B>
SW17<R.B>
SW18<R.B>
T
TB1~6
X2<I.B>
X3<I.B>
X4<I.B>
X5<I.B>
X6<I.B>
ZNR
26H
88H1,2
NAME
MODEL SELECTOR SWITCH
ADDRESS SELECTOR SWITCH
FUNCTION SELECTOR SWITCH
TRANSFORMER
TERMINAL BLOCK
LOUVER MOTOR RELAY
VANE MOTOR RELAY
FAN MOTOR RELAY
FAN MOTOR RELAY
FAN MOTOR RELAY
VARISTOR
HEATER THERMAL SWITCH
HEATER CONTACTOR
NOTES:
1.Since the indoor transformer (T) is connected with 230V power, if 208V power is used, change the wiring connection in the following procedure.
Indoor side transformer (T) for 208V YELLOW 208V RED
230V YELLOW
Indoor fan (MF) for 208V BLACK 208V BLACK
230V YELLOW
2.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
3.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal.
4.Symbols used in wiring diagram above are, :Terminal block, :connector, :PC board insertion tab.
5.Emergency operation
If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists, emergency operation for cooling or
heating can be performed by changing the setting of dip switch (SW3(I.B)) on the indoor controller board (emergency dry operation is not possible).