9
CHILLED WATER CASSETTE
The condensate evacuation pipe must be heat insulated
to a thickness of 5 to 10 mm with insulating material such
as polyurethane, propylene or neoprene (Fireproofing
classification: M1) to prevent condensation.
If several cassettes are installed in the room, the evacuation
system can be designed as illustrated below.
THE CASSETTE MUST ALWAYS REMAIN
CONNECTED TO ELECTRICAL SUPPLY TO ALLOW
THE DRAINAGE OF WATER CONDENSATS.
5.1 CONDENSATE EVACUATION
To ensure effective condensate evacuation, the downward
slope must be 1 cm per metre without any restricted or
ascending section.
600 mm
MAXI
1cm/m
50 mini
Ø16max
OK
NO
5
C
ONNECTIONS
WARNING !
The condensate extraction height is limited to a maximum
of 0.60 metre.
For heights above 0.60 m, an auxiliary condensate pump
with a level regulator should be installed.
Furthermore, a siphon with a height of at least 50 mm must
be provided to avoid any unpleasant odours in the room.
5.2 HYDRAULIC CONNECTIONS
For the system to operate in complete safety,
regulating valves must be fitted, if they are not
already fitted at the factory.
The regulation valves are installed inside the cassettes. A
lock spanner must be used for tightening the pipe work.
The first time the cassettes are filled with water
to check the tightness of the circuits, they can
be filled on a temporary basis, without power
being connected to the unit. If, on the other hand,
continuous water circulation is planned, the units
must be connected to the power supply to ensure
condensate drainage by the draining pump and
to avoid the condensate tray overflowing.
WARNING !
WARNING !
For connecting the coils the use of stop cock valves with
flexible pipes is recommended.
It is imperative to envisage a support of these pipings
independently of the cassette.
The connection must not be over tightened.
The hot water coil air purge must be done through the water
outlet connection (8
1
).
It should be noted that over tightening the connections can
cause excessive material constraints during high temperature
operation.
Содержание K 30 OG 2T
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