Design Technical Manual

Table Of Contents
INDOOR UNIT
For the air conditioner to operate satisfactorily, install it as outlined in installation manual.
z
Indoor unit mounting position
Decide the mounting position with the customer
Install the unit level on a strong wall, floor, ceiling which is not subject to vibration.
The inlet and outlet ports should not be obstructed. The air should be able to blow all over the room.
Install the unit where the refrigerant pipes can be easily installed.
Install the unit where the drain pipe can be easily installed.
Take servicing, etc. into consideration and leave the necessary space.
Install the unit in a position that satisfies the pipe length and height limitations.
z
Indoor unit mounting limitation
Install at a place that can withstand the weight of the indoor unit and install securely so that the unit will not
topple or fall.
Do not install the unit where there is the danger of combustible gas leakage.
Do not install the unit near heat sources and the location with high temperature.
Mount with the lowest moving parts at least 7ft. (2.4m) above floor or grade level.
Do not install the unit near a source of heat, steam, or flammable gas.
Unit is designed for comfort cooling applications. Do not use where process type cooling equipment may be
required.
Do not allow children to interfere with the unit.
Do not install where there is oily smoke, machine oil (i.e. factory), salty environment with direct sea breeze, and
too much of dust.
Install the unit where drainage does not cause any trouble.
Welded parts may be damaged if the unit is installed where corrosive gases such as sulphuric acid are
generated.
Control may not operate correctly if the unit is installed near machinery which emit electromagnetic waves.
Install the unit in a well-ventilated place avoiding rains and direct sunlight.
Install the unit where air from the outlet and noise do not disturb the neighbor.
Install the indoor and outdoor units, power wiring, signal wiring and remote control wiring 39-3/8in. (1 m) away
from televisions and radios to avoid distorted images and noise. (However, distorted images and noise may not
be avoidable even if the units and wiring mentioned above are installed 1m away from televisions and radios
depending on conditions of the electromagnetic disturbance.)
When installing an indoor unit in a small room, a care must be taken to keep refrigerant concentrations from
exceeding limitations if there is a refrigerant leak.
Ducted units should be considered for rooms that require quiet operation, such as bedrooms and hotel guest
rooms.
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SYSTEM
DESIGN
SYSTEM
DESIGN