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INSTALLATION OF THE UNIT
(a) Location For Installation
Install the unit in such way that air distributed by the unit cannot be drawn in again (as in the case of short circuit of
discharge air). Allow suffi cient space for maintenance around the unit.
When two or more units are installed in a location, they must be positioned such that one unit will not be taking the
discharge air from another unit.
Ensure that there is no obstruction of air fl ow into or out of the unit. Remove obstacles which block air intake or air
discharge.
The location must be well ventilated, so that the unit can draw and distribute plenty of air.
The unit is recommended to install in:-
A place capable of bearing the weight of the unit and isolating noise and vibration.
A place where has adequate drainage.
A place where the unit will not be buried in snow.
A place where air outlet port is not exposed to strong wind.
A place where the air discharge and operating sound level will not annoy the neighbours.
The location where it is not accessible by general public.
(b) Duct Construction
• This unit are equipped with supply and return air openings. Duct connection to the unit should be made with duct
fl anges and secured directly to the air openings with fl exible duct connectors to avoid normal noise transmission.
• To prevent air leakage, all duct seams should be sealed.
• Ducts in the spaces that not air-conditioned, must be insulated.
• Ducts exposed to the outside must be weather proofed.
• Ducts that entering building through the roof, the entering should be sealed with weather stripping to prevent rain, sand,
dust etc, from entering the building.
• Correct size of fi lter must be installed at the return air duct.
IM 1 5RTBR-1209(0)-EN.indd 9IM 1 5RTBR-1209(0)-EN.indd 9 1/14/10 11:37:13 AM1/14/10 11:37:13 AM
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