Connections; Condensate Evacuation; Hydraulic Connections - Airwell K OG 30 LN 2T Manuel D'installation

CHILLED WATER CASSETTE
5
5.1

CONDENSATE EVACUATION

To ensure effective condensate evacuation, the downward
slope must be 1 cm per metre without any restricted or
ascending section.
OK
600 mm
MAXI
Ø16max
NO
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

WARNING !
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 use of regulation valves (factory-fitted, supplied as
an accessory or by the client) is mandatory to ensure that
the appliance operates correctly.
The installation and operating conditions require
the MANDATORY fitting of a valve ON the unit
OR/AND upstream in the hydraulic circuit. This
is to prevent chilled water from circulating in
the appliance when the fan is not operational
(condensation issue) or to prevent the simultaneous
circulation of chilled water and hot water in a
4-pipes exchanger.
c
onnectionS
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.
50 mini
WARNING !
THE CASSETTE MUST ALWAYS REMAIN
CONNECTED TO ELECTRICAL SUPPLY TO ALLOW
THE DRAINAGE OF WATER CONDENSATS.
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 vent must be done through the
water outlet connection (8).
It should be noted that over tightening the connections
can cause excessive material constraints during high
temperature operation.
WARNING !
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.
10