Air Handlers
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(4) Check if the unit is installed securely. If there is something abnormal, please
contact a licensed HVAC professional.
7.3 Maintenance after Seasonal Use
(1) Cut off main power supply of the unit.
(2) Clean filter screen of indoor units.
(3) Clean the dust of sundries on the indoor units.
(4) In the event of rusting, use the anti-rust paint to stop spreading of rust.
7.4 Parts Replacement
Purchase parts from a licensed HVAC professional if necessary.
8 After-Sales Service
If the air-conditioning unit you bought has any quality problems or is
malfunctioning, please contact a licensed HVAC professional or your installing
contractor.
Warranty should meet the following requirements:
(1) First run of the unit should be operated by a licensed HVAC professional
(2) Only factory manufactured accessories can be used on the machine.
(3) All the instructions listed in this manual should be followed.
(4) Warranty will be automatically invalid if you fail to follow the items
mentioned above.
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