koppel KV24 ODU-ARF21C Service Manual page 22

Features
1.
Features
1.1 Installation accessories: (Optional)
Front Board, Canvas Air Passage, Filter, Panel, for easy installation

Front Board
1.2 Easy Installation: Two air inlet styles (Bottom side or Rear side)
 Air inlet from rear is standard for all capacity; air inlet from bottom is optional.
 The size of air inlet frame from rear and bottom is same, it's very easy to move the cover from bottom to
rear side, or from rear to the bottom, in order to match the installation condition.
Air intake from rear (Standard)
1.3 Fresh air intake function(Optional for 18~60k)
 Install one duct from the reserved fresh-air intake to outdoor.
Continually introduce fresh air to improve the quality of the indoor air, fulfills air quality for more healthy
and comfortable condition
.
1.4 Easy maintenance
 Clean the filter (Optional, standard product without filter)
It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or
bottom side.
20
Filter
Air intake from bottom (Optional)
Panel
Indoor Units