Mitsubishi Electric MLZ-KA25VA Notice D'installation page 3

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
(1)
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
opening of ceiling, ensuring that the respective opposite sides on all
sides of the clearance between them becomes identical.
ACCESSoRIES
Check the following parts before installation.
(1) Alkaline battery (AAA) for (8)
(2) Drain hose (with insulation)
(3) Special washer (with cushion, 4 pcs)
(4) Installation template
(5) Fixing screw for (4) M5 × 30 mm
(6) Band
(7) Fixing screw for (6) 4 × 16 mm
(8) Remote controller
(9) Remote controller holder
(10) Fixing screw for (9) 3.5 × 16 mm (Black)
All manuals and user guides at all-guides.com
Wire specifications *2
Frequency Indoor/outdoor connecting wire
50 Hz 4-core 1.5 mm
(E)
(K)
(2)
(B)
(J)
(A)
(8)
(9)
( I )
( H )
(10)
( N )
( L )
( M )
PARTS To BE PRoVIDED AT YouR SITE
(A) Refrigerant pipe
2
(B) Drain pipe VP20 (O.D. 26)
1
(C) Installation tools (See 1-3)
8
(D) Indoor/outdoor unit connecting wire*
1
(E) Suspension bolt (M10)
4
(F) Nut with flange (M10)
1
(G) Nut (M10)
2
Insulating material for (A)
1 (Heat resistant foamed polyethylene,
(H)
specific gravity 0.045, thickness more
1
than 14 mm)
2
Insulating material for (B)
(I) (Foamed polyethylene, specific grav-
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 (J) to prevent indoor/outdoor
connecting wire (D) from contacting metal parts in the wall and to
prevent damage by rodents in case the wall is hollow.
Indoor unit
Wall hole
sleeve (J)
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.
Air outlet Air inlet
Ceiling
Grille
surface
1
1
1
1
4
8
4
1
1
Insulation thickness *7, *8
14 mm
Wall hole cover (K)
Seal the wall hole
gap with putty (K).
Fix the pipe to wall
with pipe fixing
band (L).
Pipe fixing band (L)
Fixing screw (M)
Ceiling surface
200 mm
(E)
or more
Ceiling surface
(J) Wall hole sleeve
Parts for mending wall hole
(K)
(putty, cover)
(L) Pipe fixing band 2 to 7
(M) Fixing screw for (L) 2 to 7
(N) Piping tape 1 to 5
* Note:
Place indoor/outdoor unit connecting wire
(D) at least 1 m away from the TV an-
tenna wire.
1
1
En-