Ceiling Suspended Type (Fden) - Mitsubishi SCM40ZJ-S Service Manual

Connecting line between
TB1
indoor unit and outdoor unit
RD 5
1
RD
F 3.15A
Power source line 1 2 WH 3
2
WH
F 3.15A
Signal line 1
3 BL
3
CNW0
Earth Y GN
RD
CNM3
WH
CNF1
WH
M
FMI 1
1
CNFI 1
WH
CF
Notes 1. indicates wiring on site.
2. See the wiring diagram of outside unit about the line between
indoor unit and outdoor unit.
3. Use twin core cable 0.3mm 2 at remote controller line. Refer to page 30
of remote controller in case that the total length is more than 100m.
4. Do not put remote controller line alongside power source line.
Trl
M
LM
220 240V
19V 24V
C
1 2 3 4 5
CNW1 CNW2
CNJ WH
WH
BK
X4
LED 2
X6 X2
X1 X3
CNR
CNI CNB WH
1 3 5 7 9 WH BL
1 3 1
C UH H M L
X Y
5
Y GN
1
I Receiver PCB
Indication lamp Green-Normal operation
LED2
Indication lamp Yellow-Timer Inspection
LED3
7-segment display
LED4
Switches for setting
SW1
Back-up switch Operation Stop
SW4
Th -R1 Th -R2 Th -R3 Th -A
I I I I
t t t t
Option
1 2 3 4 5 6 1 2
+12 1
CNN Y CNH
BK XR1
2
SW5
XR2
CNT
LED 3 3
SW2
BL XR3
4
SW6
XR4
5
6
SW7
XR5 Remote operation input :
3 Control PCB
volt-free contact
Wireless specification
Wired specification
TB2
CNB
AMP SW4 SW1
LED2 LED3 LED4 TB2
Remote
controller
CNB2
X X
Receiver PCB
WH Thc
Y Y
t
Remote
controller
When wired remote controller are used
only wireless type
It is necessary to remove the line that is
connected to the receiver.
Remove signal line connected to the receiver
from primary side of terminal block X,Y .
ATTENTION
Insulate with tape the removed line.
The LED of that removed connector will
not be able to make any indication.
Capacitor for FMI
CFI 1
CNB Z Connector
F Fuse
Fan motor with thermostat
FMI 1
Indication lamp Green-Normal operation
LED 2
Indication lamp Red-Inspection
Operation LED 3
Heating
Louver motor
LM
Compressor ON
Inspection
Remote controller communication address
SW2
Plural units Master Slave setting
SW5
Model capacity setting
SW6
Operation check, Drain motor test run
SW7-1
Terminal block Power source mark
TB1
Terminal block Signal line mark
TB2
Thermistor Remote controller
Thc
Thermistor Return air
Thl -A
Thermistor Heat exchanger
Thl -R1,2,3
Trl Transformer
X1 3,6 Relay for FM
X4 Relay for DM
Color Marks
Mark Color Mark Color
BK Black RD Red
BL Blue WH White
BR Brown Y Yellow
OR Orange Y GN Yellow Green
P Pink