CLIMA-FLEX
19
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Before attempting to perform any maintenance work whatsoever on the equipment, it
is essential that the equipment is disconnected and completely isolated from the main
power supply.
After disconnection of the main power supply, a minimum of 1 minute should be allowed
for any rotating parts to come to rest before access panels are removed.
However, care should still be taken as it is possible for airflow generated in other parts
of the system to cause the fan impellor to rotate (windmill effect) even when power is not
present.
Access panels are not fitted with Restraints.
Appropriate PPE should be worn and correct
tools should be used when undertaking these various maintenance tasks.
Access panels that are removed for maintenance operations should be placed at floor
level in a safe location until they are ready to be re-fitted. Replace access panels at the
same locations and in the same orientation as found, and ensure that the screw fixings
are fastened securely, but not over-tightened.
If failure of the equipment occurs or is suspected, then it should be taken out of service
until the appropriate maintenance or repair can be undertaken.
FILTERS
Filters must be properly maintained in order to ensure proper air cleaning efficiency and to maintain design
airflow. Acoustic output may also be adversely affected by dirty filters.
The length of time between cleaning of filters is dependent upon the air condition. A three month cycle is normal,
however more frequent maintenance may be required in some cases. There is one air filter fitted to the equipment in
the inlet air path, upstream of the heat exchange coil. The filter may be slid out to either side of the unit. Alternatively,
the crosshead screws which fix the filter retaining angle to the equipment body may be loosened to provide sufficient
clearance for the filters to be maneuvered out of their retaining channels.
Where the equipment includes for the filter to be fitted within a separate in-board filter section, remove the screws
securing the access panel and remove the filter. Initially, cleaning can be performed by gently tapping and removing
loose dust with an air line or vacuum cleaner.
Once removed, washable filters may be fully immersed in warm water with a mild detergent solution. Agitate the
water until all contaminants have been removed. The filter should then be rinsed in clear water, allowed to drain
and air dried before replacement. In the event of heavy soiling or damage to the filter media or wire support frame,
the entire filter should be changed. When refitting new filters into the equipment, it is important to ensure these are
fitted correctly in respect of airflow. The correct orientation is obtained when the wire frame is positioned towards
the heat exchanger, and the filter media completely covers the wire frame.
Maintenance
WARNING
