Starting; Preliminary Checks; Maintenance; General Maintenance - Technibel CWX series Aufstellungshandbuch

7 - STARTING

Before doing any work on the air conditioner, make sure it is switched off and put out of bounds.
Any work must be carried out by personnel qualified and authorised to work on this type of air conditioner.

7.1 - PRELIMINARY CHECKS

• Make sure:
- that the air handler is well fixed,
- that the power cables are well fixed to their connection terminals,
- that the electric cables are properly insulated from any pieces of sheet or metal parts which could damage
them,
- that the unit is connected to earth,
- that no tools or any other objects have been left in the unit,
- that the filter is correctly fitted,
- that the coil is clean,
- the hydraulic couplings are correctly tightened,
- that the condensate discharge outlet is correctly connected,
- that the condensate drain pan is clean,
- that the condensate discharge outlet pipes are securely fastened.
7.2 - SWITCH ON THE UNIT
• Using the isolation and protection device.
• Start the device using the control box.
• Check that the fan operates correctly at the three
ventilation speeds, without abnormal mechanical
noise.
7.3 - FILLING THE HYDRAULIC CIRCUIT
WITH WATER
• If a control valve is assembled, make sure that it
operates correctly, activating it by using the remote
control.

8 - MAINTENANCE

Before doing any work on the installation, make sure it is switched off and put out of bounds.
All operations must be carried out by personnel that are approved and qualified for this type of equipment.

GENERAL MAINTENANCE

All equipment must be properly maintained in order to provide optimum performance over time. Faulty maintenance
can result in the cancellation of the product guaranty. Depending on the products, maintenance operations consist
in the cleaning of filters (air, water), internal and external exchangers, casings, and the cleaning and protection of
condensate tanks. Treating odours and the disinfection of room surfaces and volumes also contributes to the
cleanliness of the air breathed by users.
• Air filter:
- Clean at least once a month or more frequently
(see Operating instructions).
• Electric connections :
- Once a year, check that the electric wires are well
fastened to their terminals.
• Electric box :
- Dusting is recommended once a year.
• Condensate drainage system :
- This requires regular specific maintenance.
- The maintenance cycle is determined by the
conditions of operation (minimum operations to
be performed each time the installation is
restarted in cooling mode).
IMPORTANT
• Check that all the connections are watertight.
• Check that the condensate pump operates correctly
by pouring a little water into the auxiliary drain pan
under the valve.
• Check that there is no water backflow when the
pump is stopped.
• Purge the cassette.
7.4 - STARTING
• See Operation Instruction manual.
IMPORTANT
- Clean the condensate recovery tray located under
the heat exchanger and check hoses/pipes.
- Clean with water containing 5% bleach.
WATER-LEVEL ALARM
The operation lamp flashes and the air conditioner
simultaneously stops during exceeding condensate
drainage or because of malfunctioning of the
condensate drainage system (due to a faulty pump,
a dirty tank, or a plugged drain line,...).
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