Installing The Indoor Unit; Refrigerant Pipe And Drain Pipe; Note; Refrigerant And Drainage Piping Locations - Mitsubishi Electric PMFY-P VBM-E Série Manuel D'installation

. Installing the indoor unit

1. 2. 3.
4.
5.
90 °
3. Refrigerant pipe and drain pipe
ø12.7
395
302
254
141
(96)
ø6.35
4
*
*
Fig. 2-7
Fig. 2-8
Fig. 2-9
250 288.5
Fig. 2-10
46 812
43 759
(56)
Fig. 3-1
(mm)
Check the pitch of the suspension bolt. (340 mm × 811 mm)
1. Thread washers 1 2 (supplied) and their nuts (procured locally) onto the sus-
pension bolt in advance. (Fig. 2-7)
* Do this in the following order (from the top): nut, insulated washer 2, washer
without insulation 1, 2 nuts.
* Position insulated washer 2 with the insulated surface pointing down, as in the
figure.
2. Lift the unit into place, aligned properly with the suspension bolt. Pass the brack-
et between washers 1 and 2, which are already in place, and secure it. Do the
same in all four places.
* Make sure the suspension bolt extends 20 mm or more from the surface of the
ceiling. Otherwise you will not be able to install the cover panel (option).
3. If the long opening in the bracket and opening in the ceiling do not align, adjust
them until they do.
Suspension bolt (3/8" or M10)
A
Ceiling surface
B
Nut (3/8" or M10)
C
Washer 2 (with insulation)
D
4. Check that the four corners are all level, using a spirit level or clear plastic tubing
with water in it. (Fig. 2-8)
* Make sure that any slant in the unit after installation is less than 0.5 degrees
(approx. 6 mm on the long dimension of the unit).
5. Tighten all the nuts. (Fig. 2-9)
Suspension bolt (3/8" or M10)
A
Clear plastic tubing
B
Underside of bracket
C
(mm)
Secure front panel here.
D
Make sure these surfaces are flush with each other (0 - 3 mm).
E
(mm)
2.5. Fresh air intake hole (Fig. 2-10)
At the time of installation, use the hole (knock out) located at the positions shown
in following diagram, as and when required.
Fresh air intake hole (Knock out)
A
4-ø2.8 burring hole
B

Note:

Make sure that the fresh air intake is no more than 20% of the entire air intake
(when the air flow speed is set to its highest setting).
Caution:
Linkage of duct fan and air conditioner.
If a duct fan is used, be sure to link it with the air conditioner when outside
air is taken in.
Do not run just the duct fan. Otherwise, condensation may form.
3.1. Refrigerant and drainage piping locations
(mm)
Drain pipe (Use PVC pipe O.D. ø26)
A
Ceiling panel (under side)
B
Refrigerant pipe (gas)
C
Refrigerant pipe (liquid)
D
Electrical box
E
Drain pan
F
Make sure these surfaces are flush with each other.
G
Washer 1
E
(Install with insulation facing down)
F
Measurement to upper face of bracket
G