Mitsubishi Electric Mr.SLIM PKA-M-KA Series Installation Manual page 5

3. Installing the indoor unit
E
A
I
D
Fig. 3-4
C
D
A
B
C
Fig. 3-9
F
C
B
G
H
B
A
A
A
E
D
A
B
Min. 220 mm
C
Min. 70 mm (130 mm or greater with left, rear left, or lower left piping, and optional drain
D 2
E
Level
F
Fasten a thread to the hole.
G
Place the level against the horizontal reference line of the mount board and mount so that it is
level. Hang a weight from the thread and align with
H
Weight
I 1
Mount board
be embedded into the wall in advance, the extruding pipes etc, may have to be
bent and have their length modified to suit the unit.
embedded cooling pipe.
A 1
Mount board
B
Reference marking for flare connection
C
Through hole
D
On-site piping
3.4. Preparing the indoor unit
* Check beforehand because the preparatory work will differ depending on the
exiting direction of the piping.
* When bending the piping, bend gradually while maintaining the base of the
2. Apply refrigerating machine oil to the flare sheet surface. (Preparation on
3. Facing the direction in which the L-shaped connection pipe 4 will be removed,
make a quick connection to the indoor unit flare connection opening.
5. Attach the charge nut 5 to the liquid pipe side joint portion, and check for
leakage of the L-shaped connection pipe 4 connection portion.
Remove the charge nut 5 after completion of the work.
6. Cover the flare connection portion with the pipe cover of the L-shaped
connection pipe 4
A 4
L-shaped connection pipe
B
C
Tightening direction
D
Cover with pipe cover
E
Cover the flare nut connection portion with the pipe cover.
1. Cut L-shaped connection pipe 4
2. Insert the flare nut that was removed earlier onto the straight pipe side of the cut
L-shaped connection pipe 4 and then flare the end of the pipe.
4. Apply refrigerating machine oil to the flare sheet surface. (Preparation on
5. Quickly connect the L-shaped connection pipe 4 that has been processed as
7. Attach the charge nut 5 to the liquid pipe side joint portion, and check for
leakage of the L-shaped connection pipe 4 connection portion.
Remove the charge nut 5 after completion of the work.
8. Cover the flare connection portion with the pipe cover of the L-shaped
connection pipe 4
EPK of the mount board to permit leveling.
4