Mitsubishi Electric MFZ-KA25VA Notice D'installation page 3

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1-3. SPECIFICATIoNS
Power supply *1
Model
Rated Voltage
MFZ-KA25/35VA
230 V
MFZ-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
Units should be installed by licensed contractor
according to local code requirements.
ACCESSoRIES
Check the following parts before installation.
(1) Drain hose*
(2) Remote controller holder
Fixing screw for (2) 3.5 × 16 mm
(3)
(Black)
(4) Pipe cover
(5) Band
(6) Battery (AAA) for (12)
(7) Indoor unit mounting bracket
(8) Fixing screw for (7) 4 × 25 mm
(9) Wood screw for indoor unit fixation
(10) Washer of (9)
(11) Felt tape (For left or left-rear piping)
(12) Wireless remote controller
(13) Air cleaning filter
* Note:
The Drain hose is connected to the unit.
Wire specifications *2
Frequency
Indoor/outdoor connecting wire
4-core
50 Hz
2
1.5 mm
(C) (H)
(G)
(E)
PARTS To BE PRoVIDED AT YouR SITE
1
(A) Indoor/outdoor unit connecting wire*
(B) Extension pipe
1
(C) Wall hole sleeve
2
(D) Wall hole cover
1
(E) Pipe fixing band
2
(F) Fixing screw for (E) 4 × 20 mm
2
(G) Piping tape
(H) Putty
1
5
Drain hose
(I)
(or soft PVC hose, 15 mm inner
4
dia. or hard PVC pipe VP16)
4
(J) Refrigeration oil
1
1
* Note:
Place indoor/outdoor unit connecting wire (A) and power supply
1
cord at least 1 m away from the TV antenna wire.
Pipe size
(thickness *3, *4)
Gas
ø9.52 mm (0.8 mm)
ø6.35 mm
ø12.7 mm (1.0 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 (C) to
prevent indoor/outdoor connecting wire (A)
from contacting metal parts in the wall and
to prevent damage by rodents in case the
wall is hollow.
(D)
(B)
After the leak test, apply insulating mate-
rial tightly so that there is no gap.
(F)
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.
1
1
1
1
2 to 5
2 to 5
1
1
1 or 2
1
Insulation
thickness *7, *8
Liquid
8 mm
(0.8 mm)
Wall hole
sleeve (C)
Wall hole cover (D)
Seal the wall hole
Indoor unit
gap with putty (H).
Fix the pipe to wall
with pipe fixing
band (E).
Cut off the
Pipe fixing band
extra length.
(E)
Fixing screw
(F)
En-

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