Installing The Refrigerant Piping - Mitsubishi Electric Mr.SLIM PCH-GAK Manual De Instalación

3. Installing the indoor unit
Fig. 3-4
A
Fig. 3-5
(mm)
Fig. 3-6
Fig. 3-7
4. Installing the refrigerant piping
4
B
3..4. Indoor unit preparation (Fig. 3-4)
1. Install the suspending bolts. (Procure the W3/8 or M10 bolts locally.)
Predetermine the length from the ceiling (1 within 100 mm).
A Ceiling surface
B Suspending bolt
C Suspending bracket
2. Remove the intake grille.
Slide the intake grille holding knobs (at two locations) backward to open the intake
grille.
3. Remove the side panel.
Remove the side panel holding screws (one in each side, right and left) then slide
the side panel forward for removal.
3.3. Installing the indoor unit
Use a proper suspending method depending on the presence or absence of ceiling
materials as follows. (Fig. 3-5)
A In the presence of ceiling materials.
B In the case of unit suspension (In the absence of ceiling materials)
a Suspending bolt (To be locally procured)
b Suspending bracket
c Unit
d Nut (To be locally procured)
e Washer (To be locally procured)
f Washer 1 (Provided with the unit)
g Double nuts (To be locally procured)
There are two installing procedures.
(The instructions are for the case of the presence of ceiling materials.)
1) Directly suspending the unit (Fig. 3-6)
Installing procedures
1. Install the washer 1 (supplied with the unit) and the nut (to be locally pro-
cured).
2. Set (hook) the unit through the suspending bolts.
3. Tighten the nuts.
Check the unit installing condition.
• Check that the unit is horizontal between the right and left sides.
• Check that the unit slopes continuously downward from the front to the rear.
When embedding pipes, into the wall
2) Installing the suspending bracket first onto the ceiling (Fig. 3-7)
Installing procedures
1. Remove the suspending brackets, U-shaped washers, and suspending bracket
holding screws from the unit.
2. Adjust the suspending bracket holding bolts on the unit.
3. Attach the suspending brackets to the suspending bolts.
4. Set (hook) the unit to the suspending brackets.
∗ Be sure to install the U-shaped washers.
A Bolt
B Unit
C Washer
D Suspending bracket holding screw
E Bolt
F Washer 1
G Double nuts
4.1. Indoor unit
• When commercially available copper pipes are used, wrap liquid and gas pipes
with commercially available insulation materials (heat-resistant to 100 °C or
more, thickness of 12 mm or more).
• The indoor parts of the drain pipe should be wrapped with polyethylene foam
insulation materials (specific gravity of 0.03, thickness of 9 mm or more).
Refrigerant and Drainage Piping Sizes
Model
PC-2, 2.5, 3, PCH-2.5, 3, 4
Item
Liquid ODø9.52 (3/8")
Refrigerant
piping Gas ODø15.88 (5/8")
Drainage piping
(mm)
PC-2, PCH-2 900 - 905
H
PC-2.5, 3, 4,
1207 - 1212
PCH-2.5, 3, 4
PC-5, 6,
1514 - 1519
PCH-5, 6
PC-4, 5, 6, PCH-4, 5, 6
ODø9.52 (3/8")
ODø19.05 (3/4")
ODø26 (1")