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Note is valid for Turkey only: The lifetime of our products is ten (10) years
SERVICE OF THE FILTER
ü
Remove any dust adhering to the filter by using a vacuum cleaner or wash in lukewarm water (below 40°C) with neutral
cleaning detergent.
ü
Rinse the filter well and dry before placing it back onto the unit.
ü
Do not use gasoline, volatite substances or chemicals to clean the filter.
ü
Clean the filter at least once every 2 weeks. Or more frequently if necessary.
Filter Position
The filters are mounted in front of the indoor heat exchanger.
Unit shown in the diagram is UATYQ250. Other models shall follow the same method.
Remove filter cover for filter service.
For unit which is installed together with economizer kit, there is one additional filter which is mounted at the bottom
side of rain hood. Unit shown in the diagram is UATYQ250 + economizer kit (field installed). Other models shall follow the
same method.
VACUUMING AND CHARGING
The rooftop package units are factory pre-charged with sufficient refrigerant. However, there may be a need for charge
recovery during service and maintenance works. Therefore, some precautions must be taken to ensure optimum and
trouble-free system operation:
(i) The system should be throughly vacuumed to ensure no incompressible gas and moisture in the system.
(ii) Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants may damage the
vacuum pump or the unit.
(iii) The refrigerant should never be released directly into the environment.
(iv) When charging R410A, ensure that only liquid is being withdrawn from the cylinder or can.
SERVICE AND MAINTENANCE
Alternatively, remove side panel for filter service.
Dip-pipe
Rain hood (field installed)
Remove filter cover on the rain hood for filter
service.
CAUTION
Ensure the filter is placed properly and the filter cover is
fastened with screws tightly after the service to avoid water
leaking. If necessary, weather-proof sealant shall be applied
in order to ensure water-proof finishing on the filter cover
and rain hood.
Invert cylinder
without dip-pipe
Liquid
withdrawal
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