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Table 3.2 Maximum number of indoor units
4 PREPARATIONS BEFORE
INSTALLATION
4.1 Overview
This chapter mainly describes the precautions and
things to note before the unit is installed at the site.
This mainly includes the following information:
Choose and Prepare the Installation Site.
Select and Prepare the Refrigerant Piping.
Select and Prepare the Electrical Wiring.
4.2 Choosing and Preparing the
Installation Site
4.2.1 Site requirements for installation of
outdoor unit
Provide sufficient space around the unit for
maintenance and air circulation.
Make sure the installation site can bear the weight
of the unit and vibrations.
Make sure the area is well ventilated.
Make sure the unit is stable and level.
Choose a place where the rain can be avoided as
much as possible.
The unit should be installed in a location where the
noise generated by the unit will not cause any
inconveniences to any person.
Choose a site that will comply with the applicable
law.
Do not install the unit in the following locations:
An environment where there is a potential risk of
explosions.
Where there are equipment emitting electromagnetic
waves. Electromagnetic waves may disrupt the
control system, and cause the unit to malfunction.
Where there are existing fire hazards like leakage of
flammable gases, carbon fibers, and combustible
dust (such as diluents or gasoline).
HP
Max Qty. of indoor units
8
10
12
14
16
18
20
22
Where corrosive gases (such as sulphurous gases)
are produced. Corrosion of copper pipes or welded
parts may lead to refrigerant leakage.
Where mineral oil mist, spray, or steam may exist in
the atmosphere. Plastic parts may age, fall off or
cause water leakage.
Where there is a high salt content in the air such as
places near the sea.
15
13
16
19
23
26
29
33
36
CAUTION
Electric appliances that should not be used
by the general public must be installed in the
safety area to prevent others from getting
close to these electric appliances.
Both indoor and outdoor units are suitable for
the installation of commercial and light
industrial environment.
An
excessively
high
concentration
refrigerant in an enclosed area can lead to
anoxia (oxygen deficiency).
NOTE
This is a class A product. This product may
cause radio interference in the home
environment. The user may need to take the
necessary measures if such a situation does
arise.
The unit described in this manual may cause
electronic noise generated by radio
frequency energy. The unit conforms to the
design specifications and provides
reasonable protection to prevent such
interference. However, there is no guarantee
that there will be no interference during a
specific installation process.
Therefore, it is suggested that you install the
units and wires at an appropriate distance
from devices like sound equipment and
personal computers.
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