Electrical Work; Power Supply Wiring - Mitsubishi Electric CITY MULTI PLFY-P VCM-E Série Manuel D'installation

4. Electrical work

Fig. 4-1
B A
1
M1 M2 M1 M2
TB3 TB5
B
2
M1 M2
TB3
Fig. 4-2
G
*1
H
I
*3
L1
Fig. 4-3
SW1
ON
OFF
12345678910
SW2 SW3 SW4
ON ON
OFF OFF
123456 12345678910 12345
Fig. 4-4
A
S 1 2 M1 M2 S 1 2
TB15 TB5 TB15
C C
A A
M1 M2 S M1 M2 S
TB5 TB5
C C
J J J
L2 *2
K K L4
J J
r
K
L
L3
K K
SW14 SW12 SW11
0 0
CONNECTION
No. 3RD 2ND 1ST
DIGIT DIGIT DIGIT
4.1. Indoor unit (Fig. 4-1)
1.Remove 2 screws to detach the electric component cover.
2.Route each cable through the wiring intake into the electric component box. (Pro-
cure power supply cable and control cable locally.)
3.Securely connect the power supply cable and control cable to the terminal blocks.
4.Secure the cables with clamps outside the electric component box.
5.Attach the electric component cover as it was.
• Do not allow slackening of the terminal screws.
• Always install earth.
(Earth cable dia: Thicker than 1.6 mm)
• Fix power supply cable and control cable to electric component box by using buffer
bushing for tensile forse. (PG connection or the like.)
s s s s s Selecting non-fuse breaker (NF) or earth leakage breaker (NV).
A means for the disconnection of the supply with an isolation switch, or similar de-
vice, in all active conductors shall be incorporated in the fixed wiring.

Power supply wiring

• Power supply codes of appliance shall not be lighter than design 245 IEC 53 or 227
IEC 53.
• A switch with at least 3 mm contact separation in each pole shall be provided by the
air conditioner installation.
Power cable size: more than 1.5 mm
A Electric component cover
B Electric component box
C Entry for power supply cable
D Entry for control cable
E Cable clamp
4.2. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-2)
• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)
The "S" on indoor unit TB5 is a shielding wire connection. For specifications about
the connecting cables, refer to the outdoor unit installation manual.
• Install a remote controller following the manual supplied with the remote controller.
• Connect the remote controller's transmission cable within 10 m using a 0.75 mm
core cable. If the distance is more than 10 m, use a 1.25 mm
1 MA Remote controller
• Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-polar-
ized 2-wire)
• DC 9 to 13 V between 1 and 2 (MA remote controller)
2 M-NET Remote controller
• Connect the "M1" and "M2" on indoor unit TB5 to a M-NET remote controller. (Non-
polarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
A Terminal block for indoor transmission cable
B Terminal block for outdoor transmission cable
C Remote controller
Constraints on transmission cable (Fig. 4-3)
Longest wiring length (L
Length between indoor unit and remote controller (R): within 10 m
G Outdoor unit
H Earth
I BC controller
J Indoor unit
K M-NET Remote controller
L Non-polarized 2-wire
Note:
*1 Put the transmission cable earth via the outdoor unit's earth terminal
the ground.
*2 If the remote controller cable exceeds 10 m, use a 1.25 mm
over the exceeded portion, and add that exceeded portion to within 200 m.
*3 The BC controller is required only for simultaneous cooling and heating
series R2.
4.3. Setting addresses (Fig. 4-4)
(Be sure to operate with the main power turned OFF.)
• There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
0
2
.
F Power supply terminals
G Transmission terminals
H MA Remoto controller terminal
I Indoor controller
J Power board
+L +L or L +L or L +L +L ): less than 200 m
1 2 4 1 3 2 3 4
2
2
junction cable.
to
2 diameter cable