Mitsubishi Electric FDT125VNVF Technical Manual page 122

Y/GN
Connecting line between
indoor unit and outdoor unit
1
Power source line 1 2 2
3
Signal line
3
Earth
TB1
Y/GN
Notes 1. indicates wiring on site.
2. See the wiring diagram of outside unit about the line between
inside unit and outside unit.
3. Use twin core cable (0.3mm
sheet of remote controller in case that the total length is more than 100m.
4. Do not put remote controller line alongside power source line.
Remote controller
Th
C
X
Y
t°
Power PCB
CNW0
1
WH
F1 (5A)
RD 3
Power circuit
WH 5
F2 (5A)
WH
1
CNW3
BL
3 WH
F3 F4
(2A) (2A)
CNWR
WH
1 4 5 6 7 1 4 5 6 7
RD BL BR OR WH RD BL BR OR WH
CNM1
CNM2
or or or or or or or or
BK WH Y BL BK WH Y BL
L WH
M M
FM 1 FM 2
I I
x 2) at remote controller line. See spec
2
Control PCB
1
WH
X
1 CNB
2
CNN
BK
Y
WH
3
3
Y
TB2 LED E2 LED E3
• •
4
5
6
1 WH WH
1
SW2
2 WH
2
3 WH
3
4 WH
CNW1 CNW2
4
1
5 WH
CNH
5
WH WH
6 WH
6
BK
7 WH
2
7
SW5
8 WH
8
9 WH
9
10 WH
10
SW6
11 WH
1
11 CNI
12 WH
12
BL
2
SW7
For HA
1
CNR
CNZ
WH
WH
2
BK
+12 1
2
CNT
3
4
BL
CNTA
5
6
BL
1 2
Connector
CNB ~ Z
Drain motor
DM
F1 ~ 4 Fuse
Fan motor (with thermostat)
FM 1,2
I
Float switch
FS
L Reactor
RD
Th -R1
t° I
Indication lamp (Green-Normal operation)
LED · E2
RD
Y
Indication lamp (Red-Inspection)
LED · E3
Th -R2
t° I
Y
Remote controller communication address
SW2
BK
Th -R3
Plural units Master/Slave setting
SW5
t° I
BK
Model capacity setting
SW6
SW7-1 Operation check, Drain motor test run
BK
Th -A
t°
I
TB1 Terminal block (Power source) ( mark)
BK
TB2 Terminal block (Signal line) ( mark)
FS
RD
Thc Thermistor (Remote controller)
RD
Th -A Thermistor (Return air)
I
Th -R1,2,3
Thermistor (Heat exchanger)
I
RD
M mark Closed-end connector
DM
WH
Option
Color Marks
XR1 (Operation)
Mark Color
XR2 (Heating)
BK Black
XR3
(Compressor ON)
XR4 (Inspection)
BL Blue
BR Brown
XR5 (Remote operation
input:volt-free contact)
OR Orange
Mark Color
RD Red
WH White
Y Yellow
Y/GN Yellow/Green