Connections; Hydraulic Connection; Condensate Connection - Technibel CWX series Aufstellungs- Und Bedienungshandbuch

4 - CONNECTIONS

4.1 - HYDRAULIC CONNECTION

• 3/4" female gas connections on the unit.
- Water inlet: lower connection.
- Water outlet: upper connection.
• For cold water use, a control valve must be installed, otherwise there is a risk that the condensate tank may overflow if
the unit shuts down due to a thermostat disconnection or in case of condensate pump failure (for valve installation, refer to
the "Accessories" paragraph).
Important: Securely hold the unit's connections with a wrench while tightening in order to avoid twisting the tubes
inside the unit.
• Carefully insulate the water inlet and outlet tubes as well as the elements installed on the network (shut-off valves, ...).
Use material that is adapted to the installation conditions and water system.
• The unit is equipped with an air bleeder above the connections. Depending on the installations, other bleeders may be
required on the hydraulic network.

4.2 - CONDENSATE CONNECTION

• Connect the hose (2) supplied to the unit's drain fitting (1) and secure it with
the clamp (3) provided. Do not force the drain fitting.
• Connect a rigid PVC pipe (4) on the end of the hose (2) and secure it with the
clamp (3) provided.
Note : secure the clamps while ensuring that the screws are facing upward
(figure 05).
• Carefully insulate the hose with polyethylene foam.
• Be aware of the risk of freezing in false ceilings during the winter.
• If necessary, the condensate tube can be raised immediately after the unit's
outlet. Max. height: 25 cm (figure 06).
• Make sure that the drain line has a slight slope in the flow direction and that it
does not form a siphon (figure 06).
• The tube must be held with supports (figure 07).
• Do not install air intakes (figure 08).
• The line must not have an upward slope near the outlet.
There is a risk that water may flow back when the unit is off. (figure 09).
figure 09
4.3 - FRESH AIR CONNECTION
• The unit can be connected to an outside air inlet conduit.
- Open the knock-out (A), secure a connection sleeve (not supplied) to the unit and connect a thermal insulated conduit.
- On the exterior, install a grille with filter to prevent drawing in dust and debris which could clog the unit's exchanger.
A
X
Model X
220
CWX 6
250
CWX 8/10
figure 08
1 3
figure 05
30 cm max.
(as short as possible)
25 cm max..
2 % min.
figure 06
figure 07
4 holes ø 3,1
55
GB
4
2
5