DC Inverter U-match Series Cassette Type Unit
59
5.3.5 Notices at the Beginning of the Using Season
(1) Check if the air inlet/outlet of indoor/outdoor unit is blocked.
(2) Check if the ground connection is reliable.
(3) Check if the battery of remote controller is replaced.
(4) Check if the air filter screen is properly installed.
(5) If starting up again after long-term shut down, preset the power switch of air
conditioner to “ON” status before 8h of operation, to preheat the crankcase of
outdoor compressor.
(6) Check if the installation of outdoor unit is firm, if not, please contact with Gree
appointed maintenance center.
5.3.6 Maintenance at the End of the Using Season
(1) Cut off the main power of air conditioner.
(2) Clean the filter screen, indoor and outdoor unit.
(3) Clean the dust and sundries in indoor and outdoor unit.
(4) If the outdoor unit is rusty, coat the rusty location with paint to prevent it from
expanding.
5.3.7 Components Replacement
Components are available in Gree agency or Gree distributors nearby.
5.4 Notice on Maintenance
5.4.1 Information on Servicing
The manual shall contain specific information for service personnel who
shall be instructed to undertake the following when servicing an appliance that
employs a flammable refrigerant.
5.4.1.1 Checks to the Area
Prior to beginning work on systems containing flammable refrigerants,
safety checks are necessary to ensure that the risk of ignition is minimized. For
repair to the refrigerating system, the following precautions shall be complied
with prior to conducting work on the system.
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