Piping Installation - Mitsubishi Electric MFZ-KA25VA Installation Manual

4-7 MAKING HOLES IN THE WALL AND FLOOR
MAKING HOLES
1 Make ø65 mm holes (ø75 mm for KA50) that are approximately 5–7 mm deep and angled slightly downward
outward from the room.
2 Insert the wall hole sleeves C into the holes.
Wall hole
65 mm dia.
(ø75 mm for KA50)
(Indoor side)
(Wall hole cross section)
Caution:
Be sure to use the wall hole sleeves C C C C C . Otherwise, the indoor/outdoor unit connecting wires may con-
tact a metal object in the wall or, in the case of hollow walls, small rodents may gnaw on the wires,
resulting in a very dangerous situation.
DETERMINING HOLE POSITIONS
• The areas where the piping can be routed are indicated with oblique lines in the figure.
FOR REAR OR LEFT-REAR PIPING
(The following figure is a front view of the indoor
unit installation location.)
700
131 131
288
78 23
599
SEALING THE HOLES
• Use putty or a caulking compound to seal the holes.
Wall thickness
One scale
Cut with 1 extra
scale length.
Wall hole sleeve C
FOR RIGHT DOWNWARD OR LEFT DOWNWARD PIPING
(The following figure is a view of the bottom of the indoor
unit from above.)
61
31
When the unit is
150
installed on the wall.
75
168
When the unit is
62
installed on the floor.
700
FOR LEFT PIPING
FOR RIGHT PIPING
60
60
4-8

PIPING INSTALLATION

CONNECTING PIPE INSTALLATION
• Install the connecting pipes so that the piping can move slightly to the front, back, left, and right.
FOR RIGHT DOWNWARD PIPING
Bands 5
• Be sure to insulate the connecting pipes and place them near the rear of the indoor unit so that they do not
contact the front panel.
• Be careful not to crush the connecting pipes when bending them.
6
FOR PIPING OTHER THAN RIGHT DOWNWARD
Pipe covers 4
Bands 5
Remove the cover.