SystemAir ECF LN 9 2P, Installation And Maintenance Manual

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9.5. CASSETTE INSTALLATION
Side openings are provided for installing separate ducts for outside air intake and treated air distribution to an
adjacent room.
Use a punch to remove the condensation protection insulation and
the pre-punched panels from the openings.
TAKE CARE not to damage the heat exchanger
coil located behind the openings.
Plug the gaps between the ducts and the opening edge with anti-
condensation insulation.
Use material which can withstand a continuous operating temperature
of 60° C. The ducts can be of the flexible type with a spring core or
of corrugated aluminium, covered inside with an insulating material
(12 to 25 mm thick glass fibre).
When the installation is finished, all the surfaces of the non-insulated ducts must be covered with anti-condensation
insulation material (6 mm thick expanded polystyrene or expanded neoprene). Fireproofing classification: M1)
IF THE ABOVE INSTRUCTIONS ARE NOT FOLLOWED, CONDENSATE LEAKS MAY OCCUR.
Distributing air to an adjacent room requires one or two of
the corresponding ducts’ air distribution flaps to be closed.
A decompression grille must be fitted in the partition between
the air conditioned room (where the cassette is installed) and
the adjacent room.
New air
intake
Treated air
distribution
Decompression grille
All ductwork connections to the unit must be made via flexible connections to prevent transmission
of vibration.
10. HYDRAULIC CONNECTIONS
The units may contain a small amount of oil incompatible with plastic polyethylene piping (PER/HTA/
PVC). The coil should be rinsed out before use to avoid any problem.It is the installer’s responsibility
to contact their pipe supplier and take into account the general instructions for the use of plastic
pipes (PER/HTA/PVC).
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