Mitsubishi Electric CITY MULTI PLFY-PNBMU-E2 Serie Manuel D'installation page 4

2. Installing the indoor unit
Min. 1-3/16
Fig. 2-5
Fig. 2-7
3. Refrigerant pipe and drain pipe
2-3/8 11-3/16
14-27/32
Models
P08, P12, P15, P18
P24, P30, P36
Fig. 3-1
45 2
Fig. 3-2
4
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A
Suspension bolt 2.5. Unit suspension procedures (Fig. 2-5)
B
Ceiling
Suspend the main unit as shown in the diagram.
C
Nut
Figures given in parentheses represent the dimensions in case of installing optional
D
Washer (with insulation)
multi function casement.
E
Mounting plate
1. In advance, set the parts onto the suspension bolts in the order of the washers
F
Washer (without insulation)
G
Check using the Installation gauge
• Fit the washer with cushion so that the insulation faces downward.
• In case of using upper washers to suspend the main unit, the lower washers (with
2. Lift the unit to the proper height of the suspension bolts to insert the mounting
3. When the main unit can not be aligned against the mounting hole on the ceiling,
• Make sure that A is performed within 17-22 mm, 11/16-7/8 inch. Damage could
Use the top half of the box as a protective cover to prevent dust or debris
A
Main unit
from getting inside the unit prior to installation of the decorative cover or
B
Ceiling
when applying ceiling materials.
C
Gauge
D
Ceiling opening dimensions
2.6. Confi rming the position of main unit and tighten-
• Using the gauge attached to the grille, ensure that the bottom of the main unit is
Fig. 2-6
• Confi rm that the main unit is horizontally levelled, using a level or a vinyl tube
• After checking the position of the main unit, tighten the nuts of the suspension
A
Main unit
• The installation template (top of the package) can be used as a protective sheet to
B
Ceiling
C
Installation template (top of the
package)
D
Screw with washer (Accessory)
* As for the details of fi tting, refer to the instructions given on the Installation tem-
3.1. Refrigerant and drainage piping locations of
The fi gure marked with * in the drawing represent the dimensions of the main unit
excluding those of the optional multi function casement. (Fig. 3-1)
(mm, inch)
A
B
*
80, 3-5/32 74, 2-29/32
85, 3-11/32
77, 3-1/32
3.2. Connecting pipes (Fig. 3-2)
• When commercially available copper pipes are used, wrap liquid and gas pipes
• The indoor parts of the drain pipe should be wrapped with polyethylene foam
• Apply thin layer of refrigerant oil to pipe and joint seating surface before tighten-
• Use two wrenches to tighten piping connections.
• Use refrigerant piping insulation provided to insulate indoor unit connections. In-
(with insulation), washers (without insulation) and nuts (double).
insulation) and nuts (double) are to be set later.
plate between washers and then fasten it securely.
it is adjustable owing to a slot provided on the mounting plate.
result by failing to adhere to this range. (Fig. 2-6)
Caution:
ing the suspension bolts (Fig. 2-7)
properly aligned with the opening of the ceiling. Be sure to confi rm this, otherwise
condensation may form and drip due to air leakage, etc.
fi lled with water.
bolts securely to fasten the main unit.
prevent dust from entering the main unit when the grilles are left unattached for a
while or when the ceiling materials are to be lined after installation of the unit is fi n-
ished.
plate.
indoor unit
A
Drain pipe
B
Ceiling
C
Grille
D
Refrigerant pipe (liquid)
E
Refrigerant pipe (gas)
F
Water supply inlet
G
Main unit
When the optional multi-functional casement is installed, add 135 mm, 5-5/16
inch to the dimensions marked on the fi gure.
with commercially available insulation materials (heat-resistant to 100 °C, 212 °F
or more, thickness of 12 mm, 1/2 inch or more).
insulation materials (specifi c gravity of 0.03, thickness of 9 mm, 23/64 inch or
more).
ing fl are nut.
sulate carefully.
A Flare cutting dimensions
Copper pipe O.D. Flare dimensions
(mm, inch) øA dimensions (mm, inch)
ø6.35, 1/4" 8.7 - 9.1, 11/32-23/64
ø9.52, 3/8" 12.8 - 13.2, 1/2-33/64
ø12.7, 1/2" 16.2 - 16.6, 41/64-21/32
ø15.88, 5/8" 19.3 - 19.7, 49/64-25/32
ø19.05, 3/4" 22.9 - 23.3, 15/16-61/64