Free match series
18
8 Maintenance
Regular check, Maintenance and care should be performed by professional personnel, which will prolong the unit
life span.
8.1 Outdoor heat exchanger
Outdoor heat exchanger is required to be cleaned once every two months. Use vacuum cleaner with nylon brush
to clean up dust and sundries on the surface of heat exchanger. Blow away dust by compressed air if it is available.
Never use water to wash the heat exchanger.
8.2 Drain Pipe
Regularly check if the drain pipe is clogged in order to drain condensate smoothly.
8.3 Notice before Seasonal Use
(1) Check if the inlet/outlet of the indoor/outdoor unit is clogged.
(2) Check if the ground wire is earthed reliably.
(3) Check if battery of remote wireless controller has been replaced.
(4) Check if the filter screen has been set soundly.
(5) After long period of shutdown, open the main power switch 8 hours before re-operating the unit so as to
preheat the compressor crankcase.
(6) Check if the outdoor unit is installed firmly. If there is something abnormal, please contact the appointed
service center.
8.4 Maintenance after Seasonal Use
(1) Cut off main power supply of the unit.
(2) Clean filter screen and indoor and outdoor units.
(3) Clean the dust and sundries on the indoor and outdoor units.
(4) In the event of rusting, use the anti-rust paint to stop spreading of rust.
8.5 Parts Replacement
Purchase parts from appointed service center or dealer if necessary.
NOTICE!
During airtight and leakage test, never mix oxygen, ethyne and other dangerous gas into refrigeration
circuit. In case of hazard, it's better to use nitrogen or refrigerant to accomplish such test.
