01_Airwell_ST-NKFL7R_GB.fm Page 11 Thursday, July 2, 2009 4:01 PM
OI-824-11-GB
Parts Names and Functions of
Direct-Expansion-Coil Outdoor Air
Treatment Unit
This unit is designed to remove dirty or stale air from offices, conference rooms and other
indoor spaces and replace it with fresh outdoor air. The unit exchanges heat between the air-
conditioned indoor air and the outside one, and it cools or heats the air using a direct expansion
coil so that it can get fresh air into the room with closely adjusted to the indoor air temperature.
It also provides the appropriate level of humidification during heating operations using a natural
vaporizing-type humidifier.
Direct-expansion-coil outdoor air treatment unit
Long-life filter
High-performance filter
RA
SA
OA
EA
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