2 Unit installation
KPI energy and KPI active unit
SMGB0099 rev.0 - 12/2016
70
2.10.3 Duct connection
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N O T E
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Use field-supplied flexible ducts to avoid abnormal acoustic vibrations.
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The unit is fitted with a pre-drilled hose to connect the supply duct.
Check that there is no dust, sawdust or other foreign particles inside the ducts before connecting them.
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C A U T I O N
When connecting the ducts, do not touch the damper plate located behind the main unit.
Position and secure the ducts in the connection hoses and apply aluminium tape (field-supplied) around the connection
to avoid air leaks. The duct connection hoses have a previously installed sealing system.
Suspend the ducts from the ceiling so that the weight does not rest on the unit.
Cover the two outdoor ducts with suitable heat insulation material to prevent the formation of condensation.
Secure the flexible air duct to the outsides of the hoses supplied with the unit.
Duct connecting flange
Outdoor duct
Unit
Flange
Heat-insulating material
Do not install ducts along complex layouts or sharp bends. The volume of air
may be reduced, leading to abnormal circulation noises. Particularly avoid the
following situations:
A: extremely tight bends.
B: multiple bends.
C: bends next to the outlet.
D: extreme reduction of the diameter of the connected ducts.
