Ceiling-Mounted Type
DO:
• select an appropiate position from which every corner of the
room can be uniformly cooled.
• select a location where the ceiling is strong enough to support
the weight of the unit.
• select a location where tubing and drain pipe have the
shortest run to the outside.
• allow room for operation and maintenance as well as
unrestricted ai flow around the unit.
• install the unit within the maximum elevation difference (H)
above or below the outdoor unit and within a total tubing
length (L) from the outdoor unit as detailed in table 1-4.
• allow room for mounting the remote controller about 1 moff
the floor, in an area that is not in direct sunlight nor in the flow
of cool air from the indoor unit.
7
NOTE
Air delivery will be degraded if the distance from the floor to
the ceiling is greater than 3 m.
4-Way Semi-Concealed Type
Ceiling
Wall
25 cm min.
Air
discharge
Side view
Air intake
30 cm
min.
25 cm min.
NOTE
The rear of the indoor unit can be installed
flush against the wall.
Front view
1 m
1 m
1 m
1 m
1 m
AVOID:
• heat source, exhaust fans, etc. (Fig. 2-1).
• damp, humid or uneven locations.
DO:
• choose a place as cool as possible.
• choose a place that well ventilated and autside air
temperature does not exceed maximum 45 °c constantly.
• allow enough room around the unit for air intake/exhaust
and possible maintenance. (Fig. 2-2).
• provide a solid base; about 15 cm above ground level to
reduce humidity and possible water damage in unit and
drecrease service life. (Fig. 2-3).
• use lug bolts or equal to bolt down unit, reducing vibration
and noise.
OUTDOOR UNIT
Air in
Air in
Min. 15 cm
Air
discharge
Anchor bolts
(4 pieces)
Model
Min. (cm)
425 type
10
436, 448 type
20
Fig. 2-3
Hot air
Out-
door
unit
Exhaust fan
Heat
source
Fig. 2-1
Fig. 2-2
Min.
1 cm
Min.
1 cm
Min.
2 m
Ground
Min.
2 m
Obstacle
Air
dis-
charge
Min. 50 cm
Obstacle above
Table 2-1 Dimension
A
➩
2. INSTALLATION SITE SELECTION
AVOID:
• areas where leakage of flammable gas may be expected.
• places where large amounts of oil mist exist.
• direct sunlight.
• location where nearby heat sources may affect performance
of the unit.
• locations where nearby external air may enter the room
directly. This may cause “sweating” in the air discharge ports,
causing them to spray or drip.
• location where the remote controller will be splashed with
water or affected by dampness or humidity.
• installing the remote controller behind curtains or furniture.
INDOOR UNIT
EG