Accessory Parts
Fresh Air Intake for MCK-A Model
Short Duct Specification
• 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 airflow distribution if there is an obstruction (such
as alighting fixture) 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 sufficient 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 flow. Also provide a chamber and
use a booster fan.
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