Version Nr. 1-1 - 05.03.2020
Doc. Nr. 9951650033
13 / 14
12. Taking into operation
As described before the unit is controlled in relation to the cabinet internal temperature. The required cabinet
temperature can be set on the potentiometer on the controller.The temperature adjustment range is between
0°C (left-hand stop) and 60°C (right-hand stop). The thermostat is pre-set at 35°C.
To adjust the cabinet internal temperature proceed as follows:
Remove the MCB access plate on the front of the unit.
Using a screw driver turn the adjustment wheel on the potentiometer “TEMP” slightly to the right (higher)
or to the left (lower).
Please note that the setting for the alarm signal should be at least 5 - 10°C higher than the setting for the
cabinet internal temperature.
Check that the new adjustment meets the necessary requirements. If necessary, repeat the procedure. Inspect
and if necessary replace the MCB access plate sealing tape.
13. Trouble shooting
In case of a fault logon to our website
to locate your nearest servicing office or find
your nearest contact in the chapter “contacts” in this manual.
14. Maintenance & Cleaning
Danger from electrical voltage
Maintenance and cleaning must be carried out by specialists
(electricians). The personnel must ensure that for the duration of this
work the unit and the cabinet are disconnected from the electrical
supply and protected against unauthorised reactivation.
Danger through incorrect work on the unit.
The instructions in the cabinet manufacturer’s manual must be
adhered to!
Damage to the unit through incorrect maintenance and
repair! Maintenance and repair must be carried out by the
manufacturer or another specialist.
Fan replacement
The rated life expectancy of the fan is L10 =30,000 hours under normal operating conditions.
To replace the internal or external fan, please proceed as following:
Remove the internal access panel by unscrewing the 10 fixing screws.
Disconnect the blower cables from the connectors.
Unscrew the four screws fixing the blower bracket to the cabinet.
Unscrew the fan from the bracket.
Re-assembly with the new blower is in reverse order.
Make sure that the blower cable length is the same as the one of the removed fan to ensure that the cable does
not come in contact with the blower while in operation. Make sure that the correct polarity is maintained. (Refer
to circuit diagram). Inspect and if necessary replace the internal access panel sealing tape.
In addition the unit should have regular functional tests (approx. every 2,000 hours depending on the grade of
ambient pollution).
