Electrical Work; Power Supply Wiring - Mitsubishi Electric City Multi PLFY-P Installationsanleitung

4. Electrical work

Fig. 4-1
Fig. 4-2
M1 M2 M1 M2 S 1
TB3 TB5
M1 M2 M1 M2
TB3 TB5
CN90
Pair No.
M1 M2 M1 M2
0
TB3 TB5
9
Pair No.
0
Fig. 4-3
6
2 M1 M2 S 1 2
TB15 TB5 TB15
S M1 M2 S
TB5
CN90
Pair No.
S 1 2 M1 M2 S 1 2
0
TB15 TB5
9
4.1. Indoor unit (Fig. 4-1)
1. Remove the electrical wiring service panel.
2. Remove the electrical box cover.
3. Remove the MA Remote controller terminal cover.
4. Wire the power cable and control cable separately through the respective wiring
entries given in the diagram.
• Do not allow slackening of the terminal screws.
• Leave excess cable so that the electical box cover can be suspended below the
unit during servicing.(Approx. 50 to 100 mm)
Entry for remote controller cable
Entry for power and control cable
Clamp
Electrical box cover
Service panel for electrical wiring
Temporary hook for elrctrical box cover
MA Remote controller terminal cover
Power supply terminals (with earth terminal) (L, N,
Transmission terminals (M1,M2,S)
MA Remote controller terminal (1,2)
Secure with the clamp
Selecting non-fuse breaker (NF) or earth leakage breaker (NV).
For breaker, means shall be provided to ensure disconnection of all active phase
conductors of the supply.

Power supply wiring

• Install an earth longer than other cables.
• Power supply codes of appliance shall not be lighter than design 60245 IEC 53 or
60227 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 1.5mm
[Fig.4-2]
Switch 16 A
Overcurrent protection 16 A
Indoor unit
4.2. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-3)
• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)
The "S" on indoor unit TB5 is a shielding wire connection. For specifi cations about
the connecting cables, refer to the outdoor unit installation manual.
• Install a remote controller following the manual supplied with the remote control-
ler.
• 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
MA Remote controller
• Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-
polarized 2-wire)
• DC 9 to 13 V between 1 and 2 (MA remote controller)
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)
Wireless remote controller(When installing wireless signal receiver)
• Connect the wire of wireless signal receiver (9-pole cable) to CN90 of indoor con-
troller board.
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
• To chang Pair No. setting, refer to installation manual attached to wireless remote
controller. (In the default setting of indoor unit and wireless remote controller, Pair
No. is 0.)
Terminal block for indoor transmission cable
Terminal block for outdoor transmission cable(M1(A), M2(B),
Remote controller
wireless signal receiver
wireless remote controller
TB15
)
2
Total operating current be less than 16 A
Pull box
2
junction cable.
(S))
2