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Installing The Indoor Unit - Mitsubishi Electric PLFY-P20VFM-E1 Installationshandbuch

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2. Installing the indoor unit

J
7.5 - 24.5
88
H
150
K
F
Fig. 2-2
A
B
20
H
D
(576) C
625 D
576 - 610 C
7.5 - 24.5
408
I
525 B
570 A
*1
*1
E
G
Floor
C
140
F
120°
G
70
E
J
I
2.2. Ceiling openings and suspension bolt installation
(mm)
locations (Fig. 2-2)
grille), make an opening in the ceiling so that the main unit can be installed as shown
in the diagram. (The method for using the template and the gauge are shown.)
* Before using, check the dimensions of template and gauge, because they
change due to fluctuations of temperature and humidity.
* 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, en-
suring that the respective opposite sides on all sides of the clearance between
them becomes identical.
* Suspension bolts are to be procured at the field.
A
Outer side of main unit
B
Bolt pitch
C
Ceiling opening
D
Outer side of Grille
E
Grille
F
Ceiling
* Leave the maintenance space at the electric component box end.
*1 When installing in an existing ceiling unit location or applying additional heat insulation,
ensure a minimum space of 25 mm.
(mm)
Caution:
Linkage of duct fan and air conditioner
ln case that a duct fan is used, be sure to make it linked with the air conditioner
when outside air is taken.
Installation of duct flange
screws which should be prepared locally.
wrap the duct in a heat insulate to avoid causing dew drop on the wall.
A
Duct flange recommended shape
B
3-ø5 hole
C
Detail drawing of fresh air intake
D
Indoor unit
E
Ceiling surface
G
G
If setting the maintenance space for
, be
H
Maintenance space
I
Fresh air intake
J
Angle
K
Electric component box
F
3-Tapping screw hole
G
ø73.4 cutout hole
H
Duct flange (Prepared locally)
I
J
Insulation

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