Service Space - Mitsubishi Electric MLZ-KA25VA Installationsanleitung

1-3. SPECIFICATIoNS
Power supply *1
Model
Rated Voltage
MLZ-KA25/35VA
230 V
MLZ-KA50VA
*1 Connect to the power switch which has a gap of 3 mm or more when open to
interrupt the source power phase. (When the power switch is shut off, it must
interrupt all phases.)
*2 Use wires in conformity with design 60245 IEC 57.
*3 Never use pipes with thickness less than specified. The pressure resistance will
be insufficient.
*4 Use a copper pipe or a copper-alloy seamless pipe.
1-4. INSTALLATION DIAGRAM
E
Units should be installed
by licensed contractor
according to local code
requirements.

Service space

• The dimensions of ceiling opening can be regulated within the range
shown in following diagram; so center the main unit against the open-
ing of ceiling, ensuring that the respective opposite sides on all sides
of the clearance between them becomes identical.
E
Ceiling surface
ACCESSoRIES
Check the following parts before installation.
Alkaline battery (AAA) for
Drain hose (with insulation)
Special washer (with cushion, 4 pcs)
Installation template
Fixing screw for M5 × 30 mm
Band
Fixing screw for 4 × 16 mm
Remote controller
Remote controller holder
Fixing screw for 3.5 × 16 mm (Black)
Wire specifications *2
Frequency Indoor/outdoor connecting wire
50 Hz 4-core 1.5 mm
L
B
K
A
J
H
P
M
N
Grille
PARTS To BE PRoVIDED AT YouR SITE
Refrigerant pipe
A
2
Drain pipe VP20 (O.D. 26)
B
1
Installation tools (See 1-3)
C
8
Indoor/outdoor unit connecting wire*
D
1
Suspension bolt (M10)
E
4
Nut with flange (M10)
F
1
Nut (M10)
G
2
Insulating material for
1
(Heat resistant foamed polyethylene,
H
1
specific gravity 0.045, thickness more
than 14 mm)
2
Insulating material for
(Foamed polyethylene, specific grav-
J
ity 0.03, thickness more than 10 mm)
Pipe size (thickness *3)
Gas Liquid
ø9.52 mm
(0.8 mm)
ø6.35 mm
2
(0.8 mm)
ø12.7 mm
(0.8 mm)
*5 Be careful not to crush or bend the pipe during pipe bending.
*6 Refrigerant pipe bending radius must be 100 mm or more.
*7 Insulation material : Heat resisting foam plastic 0.045 specific gravity
*8 Be sure to use the insulation of specified thickness. Excessive thickness may
cause incorrect installation of the indoor unit and insufficient thickness may cause
dew drippage.
Be sure to use wall hole sleeve
connecting wire from contacting metal parts in the wall and to
D
prevent damage by rodents in case the wall is hollow.
Indoor unit
Wall hole
sleeve
K
Cut off the
extra length.
After the leak test, apply insulating material tightly so that there
is no gap.
When the piping is to be attached to a wall containing metals (tin
plated) or metal netting, use a chemically treated wooden piece 20
mm or thicker between the wall and the piping or wrap 7 to 8 turns
of insulation vinyl tape around the piping.
To use existing piping, perform COOL operation for 30 minutes and
pump down before removing the old air conditioner. Remake flare
according to the dimension for new refrigerant.
E
Air outlet Air inlet
Ceiling surface
1
1
1
1
4
8
4
A
1
B
1
Insulation thickness *7, *8
14 mm
to prevent indoor/outdoor
K
Wall hole cover
L
Seal the wall hole
gap with putty .
L
Fix the pipe to wall
with pipe fixing
band .
M
Pipe fixing band
M
Fixing screw
N
200 mm
or more
Ceiling surface
Wall hole sleeve
K
Parts for mending wall hole
L
(putty, cover)
Pipe fixing band 2 to 7
M
2 to 7
Fixing screw for
N M
Piping tape
1 to 5
P
* Note:
Place indoor/outdoor unit connecting wire
at least 1 m away from the TV antenna
D
wire.
1
1
En-2