Installation Location - Mitsubishi Electric PMFY-P VBM-E Série Manuel D'installation

. Installation location

Fig. 2-2
20
74.5
26
20
Fig. 2-3
Fig. 2-4
Fig. 2-5
Fig. 2-6
(mm)
(mm)
1000
960
20
811
74.5
759 26
20
53
(mm)
(mm)
*1
2.2. Service space (Fig. 2-2)
• The dimensions of ceiling opening can be regulated within the range shown in
following diagram; so centre the main unit against the opening of ceiling, ensur-
ing that the respective opposite sides on all sides of the clearance between them
becomes identical.
Air intake
A
Air outlet
B
Ceiling panel
C
Min. 200 mm
D
Suspension bolts W3/8 or M10
E
Grille
F
2.3. Ceiling openings and suspension bolt installation
locations (Fig. -)
• Make an opening in the ceiling 430 mm × 960 mm in size. This functions as a
check window and will be needed later during servicing.
• If the dimensions are not accurate, when the grille is installed there may be gaps
between it and the indoor unit. This may result in dripping water or other prob-
lems.
• When deciding on placement, consider carefully the space around the ceiling and
make your measurements generous.
• Ceiling types and building construction differ. Therefore you should consult with
the builder and decorator.
The centres of the ceiling opening and the indoor unit should be aligned.
A
Outer side of grille
1
Ceiling opening
2
Bolt pitch
3
Electric box
4
• Using the installation template (top of the package) and the gauge (supplied as
an accessory with the 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.)
• Use M10 (3/8") suspension bolts.
*Suspension bolts are to be procured at the field.
• After suspending the indoor unit, you will have to connect the pipes and wiring
above the ceiling. Once the location has been fixed and the direction of the pipes
has been determined, place the refrigerant and drainage pipes, the wiring for the
remote controller, and the wiring that connects the indoor and outdoor units in
their desired locations before suspending the indoor unit. This is especially im-
portant in cases where the ceiling is already in existence.
Wooden structures (Fig. 2-4)
1
• Use tie beams (single storied houses) or second floor beams (2 story houses) as
reinforcing members.
• Wooden beams for suspending air conditioners must be sturdy and their sides
must be at least 6 cm long if the beams are separated by not more than 90 cm
and their sides must be at least 9 cm long if the beams are separated by as
much as 180 cm. The size of the suspension bolts should be ø 10 mm (3/8"). (The
bolts do not come with the unit.)
• Use channel, duct and other parts procured locally to suspend the indoor unit.
Ferro-concrete structures (Fig. 2-5)
2
Secure the suspension bolts using the method shown, or use steel or wooden
hangers, etc. to install the suspension bolts.
Ceiling panel
D
Rafter
E
Beam
F
Roof beam
G
Use inserts rated at 100 - 150 kg each
H
(procure locally).
2.4. Unit suspension procedures (Fig. 2-6)
Procure 3/8" bolts or M10 bolts locally.
• Adjust the length of the bolt's protrusion from the ceiling surface beforehand.
*1. When using an extra upper nut in suspending the unit, in some cases you
may have to add it later.
Suspension bolt
A
Ceiling panel
B
Nut
C
Washer (with insulation)
D 2
Washer (without insulation)
E 1
Suspension bolts M10 (3/8")
I
(procure locally)
Steel reinforcing rod
J
C channel
K
Channel suspension bracket
L
M10 suspension bolt
M