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7) Wrap the refrigerant pipes and drain hose together with
insulation tape as right figure.
8) While take extra care while going through activities so that
the interconnecting wires do not damaged by indoor unit,
press the bottom edge of indoor unit with both hands until
it is firmly caught by the mounting plate hooks. Secure indoor
unit to the mounting plate with the screws (M4 × 12L).
Wall embedded piping.
Follow the instructions given
Left-side, left-back, or left-bottom piping
1) Insert the drain hose to this depth so it won't be pulled
out of the drain pipe.
The indoor unit must be installed in such a way so as to prevent short circuit of the cool discharged air with the
hot return air. Please follow the installation clearance shown in the figure. Do not place the indoor unit where there
could be direct sunlight shining on it. Also, this location must be suitable for piping and drainage, and be away from
doors or windows.
Return Air
Air flow
(Indoor)
min. 1-15/16
(50)
Required space
(Space for
maintenance)
4
• Connect the drain hose, as described below.
• Water Drainage
Water
Water
leaking
leaking
Correct
Wrong
• Remove the air filters and pour some water into the
drain pan to check the water flows smoothly.
min. 1-15/16
(50)
(Space for
maintenance)
All dimensions are in inch (mm)
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end of
the hose in water.
Water
retention
End
dipped
Water
into
leaking
water
Drain
Wrong
Wrong
Bottom frame
Insert drain hose to this
depth so it won't be pulled
out of drain pipe.
1-15/16" (50 mm)
Outer wall
How to attach the
indoor unit
Hook the claws of the
bottom frame to the
mounting plate.
How to remove the
indoor unit.
Push up the marked
area (at the lower
part of the front grille)
to release the claws.
DRAIN PIPING
• When drain hose requires extension, obtain an
extension hose commercially available. Be sure to
thermally insulate the indoor section of the extension
hose.
Indoor unit
drain hose
• When connecting a rigid polyvinyl chloride pipe
(inside diameter 5/8" (16mm)) directly to the drain
hose attached to the indoor unit as with embedded
piping work, use any commercially available drain
socket (inside diameter 5/8" (16mm)) as a joint.
Drain hose
supplied with
the indoor unit
1-10
Mounting
Drain hose
plate
Refrigerant
pipes
M4 × 12L (2 point)
Inner wall
Drain hose
or more
Vinyl chloride drain pipe
(VP-30)
Bottom frame
Front grille
Mark (rear side)
Extension drain hose
Heat insulation
tube (Field supply)
inside
polyvinyl pipe
socket (
(diameter 5/8"
diameter 5/8"
(16mm))
(16mm))
Mounting
plate
Claw
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