Outdoor Unit Installation; Drain Piping - Mitsubishi Electric MS-GA60VB Series Installation Manual

4 Insert the drain hose into the section to which the drain hose is
to be attached at the rear right of the indoor unit.
Insert the drain hose fully into the drain pan. Check if the hose is hooked securely to
the projection of its inserting part at the drain pan.
INDOOR UNIT INSTALLATION
• Insert the drain hose into the wall hole sleeve C, and hook the upper part of
indoor unit on the installation plate 1. Then, move the unit to the very edge of the
left side for putting the piping easily in the back space of the indoor unit. After that,
cut the part of packing material (spacer assembly) to hook it on the back rib and
lift the indoor unit as shown in the fi gure below.
Cut part of packing material (spacer assembly) to
hook it on the back rib.
Spacer assembly
Securely attach the spacer
assembly in the concave
part of the rib, taking care its
direction is correct as shown
in the fi gure right.
•
Connect the refrigerant piping with the extension pipe B.
•
Thrust the lower part of the indoor unit into the installation plate 1.

4-7 DRAIN PIPING

•
If the extension drain hose has to pass through a room, be sure to wrap it with
commercially sold insulation.
•
The drain hose should point downward for easy drain fl ow. (Fig. 1)
Do not make drain piping as shown in Fig. 2 to 5.
Downward
slope
Water
leakage
(Fig. 1) (Fig. 2)
Tip of drain
hose dipped
in water.
Water
leakage
Ditch
(Fig. 4) (Fig. 5)
•
If the drain hose provided with the indoor unit is too short, connect it with drain
hose I that should be provided at your site. (Fig. 6)
•
When connecting the drain hose to the hard vinyl chloride pipe, be sure to insert it
securely into the pipe. (Fig. 7)
Drain hose
Soft hose
I.D. 15 mm
(Fig. 6)
Drain hose
Spacer
Accumulated
drain water
Do not raise.
Air
Water
Waving
leakage
(Fig. 3)
Less than
50 mm gap
Drain hose
Hard vinyl
70 cm chloride pipe
or more I.D. 30 mm
Be sure to insert the
drian hose securely
into the pipe.
Different
diameter joint
(Fig. 7)

5. OUTDOOR UNIT INSTALLATION

INDOOR/OUTDOOR UNIT CONNECTING WIRE
CONNECTION AND OUTDOOR POWER SUPPLY CORD
CONNECTION
• Connect the indoor/outdoor unit connecting wire A from the indoor unit correctly
on the terminal block.
•
For future servicing, give extra length to connecting wire.
• Connect to the supply terminals and leave a
Rated Breaker
contact separation of at least 3 mm at each pole
Voltage capacity
to disconnect the source power pole. (When the
power switch is shut off, it must disconnect all
poles.)
230 V 25 A
• Max. Permissive System Impedance 0.17(Ω) for
71/80 types
Peel off both ends of connecting wire (extension wire).
When too long, or connected by cutting off the middle,
peel off power supply wire to the size as shown in the
right.
Be careful not to contact connecting wire with piping.
Make earth wire a little longer than the others.
(more than 35 mm)
•
For the power supply cord and the indoor/outdoor unit connecting wires, be sure to
use the ones in compliance with the standards.
•
Be sure to push the core until it is hidden and pull each cable to make sure that it is
not pulled up incomplete insertion may cause a risk of burning the terminal blocks.
Power supply cord 3-core 2.5 mm
Specifi cation with Design 60245 IEC 57.
Indoor and Outdoor
Cable 2-core 1.0 mm
connecting wire
Design 60245 IEC 57.
Specifi cation
A means for disconnection of the supply with an isolation switch, or similar
device, in all active conductors shall be incorporated in the fi xed wiring.
Never cut the power cord and connect it to other wires.
It may cause a fi re.
MS Type and MSH Type
Loosen terminal screw.
Lead wire
Terminal block
<Connection details>
Use care not to make mis-wiring.
Firmly tighten the terminal screws to prevent them from loosening.
After tightening, pull the wires lightly to confi rm that they do not move.
If the connecting wire is incorrectly connected to the terminal block, the unit
does not operate normally.
35 mm
2 or more, in conformity
10 m or less
2
, in conformity with
WARNING
Indoor
terminal 3 N
block
Indoor/outdoor unit
connecting wire A
2-core 1.0 mm
Outdoor
terminal 3 N L~ N~
block
Power supply cord K
CAUTION
15 mm
2