Mitsubishi Electric MLP-444WU Installation Manual page 58

Unit suspension procedures
• Adjust the length of the bolt's protrusion from the ceiling surface beforehand.
• Check the pitch of the suspension bolt
1051 mm))
1) Install special washer and their nuts
advance.
* Do this in the following order (from the top): nut
cushion , special washer
* Position special washer, with cushion
down, as in the figure.
2) Lift the unit into place, aligned properly with suspension bolt
bracket between special washer, with cushion
which are already in place, and secure it. Do the same in all four places.
* Make sure the suspension bolt
the surface of the ceiling. Otherwise you will not be able to install the grille
(optional).
* If the points for securing the grille are not flush with the ceiling surface,
water may condense, or the panel may not open/close.
3) If the long opening in the bracket and opening in the ceiling do not align,
adjust them until they do.
4) Check that the four places for securing the grille are all level using a spirit
level.
5) Tighten all the nuts.
Secure 1 Push
2-2. HOLE DRILLING
1) Determine the wall hole position.
2) Drill a dia. 2-15/16 in. (75 mm) hole. The outdoor side should be 3/16 to 1/4
in. (5 to 7 mm) lower than the indoor side.
3) Insert wall hole sleeve K .
2-3. DRAIN PIPING
• Use drain pipe for drain piping. Be sure to connect the piping joints using
B
adhesive of polyvinyl chloride family to prevent leakage.
• Before drain piping work, remove the pipe cover, hose band, pipe band, and
spacer (cushion). Dispose of the spacer (cushion), as it will not be needed.
• Drain hose is 21-5/8 in. (550 mm) long, so that drain piping exit can be
moved up. Cut drain hose
En-5
. (12-1/8 × 41-3/8 in. (308 mm ×
E
F onto the suspension bolt
F , special washer with
, nut , nut .
F
G
with the insulated surface pointing
E . Pass the
and special washer
E extends 2-3/4 in. (70 mm) or more from
2 Secure 3 Position in the
center
1 2
into appropriate length before connecting.
in
E
,
Point for securing grille
Point for securing grille
Make sure these
surfaces are flush
with each other (0 to
1/8 in. (0-3 mm)).
Ceiling surface
Point for securing grille
Wall
ø2-15/16 in.
(ø75 mm)
Hose band
Indoor unit side
Suspension bolt (W 3/8)
E
Nut with flange (W 3/8)
F
Special washer (with cushion, 4 pcs)
Special washer
Nut with flange (W 3/8)
F
Nut (W3/8)
G
Make sure these
surfaces are
flush with each
other (0 to 1/8 in.
Unit
(0-3 mm)).
Drain pan
Point for securing grille
3/16 to 1/4 in.
(5-7 mm)
Outdoor side
Pipe band
Pipe cover
Spacer (cushion)
21-5/8 in. (550 mm)
16-15/16 in. (430 mm) Drain piping side
(Connect drain
Cut within this area
pipe
Enlarged view
)
B