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3. Installation of the Indoor Unit
12
Installation and Maintenance
CAUTION
2. Tools and Instruments for Installation
3.1 Initial Check
When moving the unit after unpacking, make sure to lift it by holding its lifting lugs. Do not exert any pressure
on other parts, especially the refrigerant piping, drain piping and flange parts.
Wear protective gears when installing the unit.
CAUTION
Fig. 3.1.1
(unit:mm)
During installation, do not damage the insulation material on the surface of the indoor unit.
1.Reserve necessary maintenance port when the
ceiling is not detachable.
2.The location of the maintenance port should
ensures remove electric box cover and internal
components are all easy to perform.
≥600
≥
1000
≥
1000
100
140
600
Electric control box
Top view
Maintenance port（ ≥450）
600
●
●
Number
1
2
3
4
5
6
7
Tool
Standard screwdriver
Vacuum pump
Charge hose
Pipe bender
Adjustable wrench
Pipe cutter
Cross head screw-driver
Number
Number
8
9
10
11
12
13
14
Tool
Tool
Leveler
Hammer
Churn drill
Knife or wire stripper
Pipe expander
Inner hexagon spanner
Measuring tape
·Optimum air distribution is ensured.
·The air passage is not blocked.
·Condensate can drain properly.
·The ceiling is strong enough to bear the weight of the
indoor unit.
·A false ceiling does not seem to be at an incline.
·Sufficient clearance for maintenance and servicing
is ensured.(See Fig.3.1.1 )
·Piping between the indoor and outdoor units is within
the allowable limits.(refer to the installation of the
outdoor unit )
·The indoor unit, outdoor unit, power supply wiring
and transmission wiring must be kept at least 1m
away from televisions and radio, this prevents image
interference and noise in electrical appliances.
(Noise may be generated depending on the conditions
under which the electric wave is generated, even if a
one-meter allowance is maintained.)
·Do not install the indoor unit in a machinery shop or
kitchen where vapor from oil or its mist flows to the
indoor unit. The oil will deposit on the heat exchanger,
thereby reducing the performance of the indoor unit,
and may deform and in the worst case, break the
plastic parts of the indoor unit.
Use suspension bolts to install the unit, check whether ·
or not the ceiling is strong enough to support the
weight of the unit. If there is a risk that the ceiling is
not strong enough, reinforce the ceiling before
installing the unit.
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