Installation For Indoor Unit - Mitsubishi Electric MSZ-WG18VA-H1 Operating And Installing Instructions

Wall-mounted inverter heat pump room air conditioner
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Installation instructions
1-1 How to set slide switch (inside battery
box of remote controller)
Details of slide switch.
①Remove the front lid.
②Be sure to place the slide switch in right position
inside the battery box of remote controller (identical
to space position of indoor unit installation, according
to requirement). Or else, this conditioner will not run
under the optimum state (Refer to page 4).
NOTICE:
If the indoor unit has been installed more than 50cm
away from the side walls, cabinets or other objects
nearby, place this slide switch to the "center" position.
③Insert two (AAA) 1.5V batteries
into battery box.
④Reattach the front lid.
⑤Press the RESET button with a
thin object (pen).

2. Installation for indoor unit

2-1 Fixing of mounting plate
Look for a structural part (such as a pole) so that you are sure to
·
fix the mounting panel horizontally. If the indoor unit declines, the
furniture will be wet and contaminated by water drop from the unit.
A thin string runs through the hole
Over 179mm
(Away from wall)
2
Captive screw
Plump
4×25 (7)
Mounting plate
1
To prevent the slight vibration of mounting plate, holes marked
with
should be fixed, and parts marked with
also fixed as possible.
• If user needs to break through the middle elliptical hole in
the back of mounting plate when installing the unit, please
affix the scratchproof plastic adhesive tape on the end face
of this hole (this adhesive tape shall be provided by user).
• When using expansion screws buried into cement wall, you
shall use elliptical holes of 11×20 and 11×26 with 45cm apart
from each other to fix the mounting plate. If the expansion
screw is too long, use short screws sold in market.
2-2 Drilling hole in the wall
① Confirm the hole position in wall.
② Drill a hole (diameter: 75mm) tilting slightly downwards
from inside to outside.
③ Insert Wall-hole sleeve
④ Embed the putty
between Wall-hole and sleeve.
H
Confirm the hole position
Insert ruler
Straighten the ruler
Slide switch
RESET button
For right piping:Over 82mm
For left piping:Over 123mm
Elliptical hole
One end of the thin string is attached with a
weight, in order to align it with the position
marked with V, so it is easy to fulfill alignment.
should be
in the Wall-hole.
C
100 mm
Mounting
plate
1
Hole center with 75 mm diameter
Hole of left shall be processed
by the same way
Wall hole
Diameter:75mm
(Indoor side)
(Wall-hole cross
section)
Always use the wall hole sleeve
wires between indoor and outdoor unit from contacting the metallic
parts inside wall and rodent pest from occurring.
2-3 Specifications for power supply and connection wires
·This unit is powered outdoors.
·Use special cables for air conditioner.
Specifications of connection wires
between indoor and outdoor unit
·Lead out a power cord from the left or right bottom of
the indoor unit.
• Each air conditioner should be equipped with special power
supply line. Power supply specification should accord with
national regulations and be installed with independent switch.
• It is prohibited to cut off the power cord and connect it to
other lines, or else fire may occur.
2-4 Connection of indoor/outdoor wires
Connect indoor/outdoor lead wire without removing front
frame.
① Open the front panel.
② Unscrew the captive screws in electrical cover to remove
it.
③ Unscrew the captive screws in cable clip to remove it.
④ Pass the connecting wire of indoor and outdoor units to
the front side from the back of the indoor unit, then pro
cess the wire end and then fix it to the terminal board.
⑤ Place the wire clip and the electrical cover in its home
position securely and tighten the captive screws.
(Figure 1)
Indoor terminal bed
Tension disc
Indoor/outdoor
connecting wire
A
20
Wall thickness
1cm
Leave 1 cm or so,
cut excessive
section
Wall-hole sleeve
C
, which prevents the connection
C
YZW type cable with the
section area of 1.5 mm
2
Warning
Electrical
Captive screw
Be sure to buckle the left hook to the claw.
Be sure to compact the indoor/outdoor
connecting wire.
Press the wire into terminal block
securely until the core wire
is invisible completely

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