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Application Information ACK-E-2009
Short Duct Specifi cation
The indoor unit is provided with air discharge and air intake “knock-out” hole for duct connection. However
the connection of the short duct for air discharge is possible on only one side.
The use of short duct for air discharge will improve air fl ow distribution if there is an obstruction (such as
alighting fi xture) or in a long, narrow room or an L-shaped room. It is also used for air-conditioning of two
rooms simultaneously.
Possible Direction For Air Discharge and Air Intake
Possible Opening Dimension for Duct Connection
Note: 1. Avoid to use the short duct on which the air discharge grille can be completely closed, to
prevent evaporator freezing.
2. In order to prevent condensation forming, be sure that there is suffi cient thermal insulation
and no leakage of cool air when installing the short duct.
3. Keep the introduction of fresh air intake within 20% of total air fl ow. Also provide a chamber
and use a booster fan.
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Air Intake
Air DischargeAir Discharge
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05_Application Information_A.ind23 2305_Application Information_A.ind23 23 4/6/2009 3:32:54 PM4/6/2009 3:32:54 PM
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