Drainage Piping Work (Fig. 5-1); Electrical Work; Liquid Pipe; Fig - Mitsubishi Electric City Multi PKFY-P VFM-E Série Manuel D'installation

5. Drainage piping work (Fig. 5-1)

On-site drain pipe
Drain socket
Felt tape 5

Fig. 5-1

6. Electrical work

A
B
C
D
A Terminal block cover
B Securing screw on the terminal block cover G Terminal block for transmission
C Wire fastening band
D Printed circuit board cover
E Right side panel
Fig. 6-1
B A
1
M1 M2 M1 M2
TB3 TB5
B
2
M1 M2
TB3
Fig. 6-2
6
Unit's drain pipe
Apply PVC adhesive
Drain pipe Gas pipe
E
F Terminal block for MA Remote controller
H Terminal block for power supply
I Power supply wiring & connection wiring
J Cord clamp
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
• Drain pipes should have an inclination of 1/100 or more.
• Use PVC pipe VP-20 (O.D. ø26 PVC TUBE) for drain piping.
• Drain pipes can be cut with a knife at the connection point according to the on-site
conditions.
• When connecting the VP-20, use adhesive to attach the supplied drain socket.
• To prevent dripping condensation, put felt tape 5 over the insulation materials on
the refrigerant and drain pipes within the unit as shown in the diagram.
Caution:
The drain pipe should be installed according to this Installation Manual to en-

Liquid pipe

sure correct drainage. Thermal insulation of the drain pipes is necessary to
prevent condensation. If the drain pipes are not properly installed and insu-
lated, condensation may drip on the ceiling, floor or other possessions.
6.1. Indoor unit (Fig. 6-1)
F
1 Remove the right side panel.
To do this, remove the screws on the lower and right sides.
G
Remove the securing screw on the terminal block cover to take away the cover.
• The top end is hanging on a catch. Slide the cover to the right and upward for
removal.
2 Connect the power line, control line from the outdoor unit, and remote con-
H
trol lines.
After connecting, secure the wires with the cable band.
s Fix power source wiring to control box using buffer bushing for tensile force.
(PG connection or the like.)
I
• Since the electric box may need to be pulled out for servicing or other occasions,
J
wires must have enough slack.
• Class 3 grounding work must be conducted (grounding wire diameter: 1.6 mm or
more)
After wiring is completed, reinstall the parts in the reverse order of removal.
Note:
• Power supply codes of appliance shall not be lighter than design 245 IEC 53
or 227 IEC 53.
• Install an earth longer and thicker than other cables.
• Power cable size: more than 1.5 mm
• A means for the disconnection of the supply with an isolation switch, or simi-
lar device, in all active conductors shall be incorporated in the fixed wiring.
• Selecting non-fuse breaker (NF) or earth leakage breaker (NV).
• A switch with at least 3 mm contact separation in each pole shall be provided
by the air conditioner installation.
Warning:
Wiring should be done so that the power lines are not subject to tension. Oth-
erwise, heat may be generated or fire may occur.
6.2. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 6-2)
• 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
2 .
2 junction cable.
2