Carrier RAV-SP180UT-UL Service Manual page 145

<Maintenance>
Periodic Maintenance - periodic maintenance is recommended to ensure proper operation of the unit.
Recommended maintenance intervals may vary depending on the installation environment, e.g. dusty zones, etc.
Refer to table below.
Periodic Maintenance
INDOOR UNIT
Clean Air Filter ∗1
Clean Drain Pan
Clean indoor heat exchanger ∗2
Clean fan ∗2
Change Remote Control Batteries
OUTDOOR UNIT
Clean Outdoor heat exchanger from Outside
Clean Outdoor heat exchanger from Inside ∗2
Blow Air Over Electric Parts ∗2
Check Electric Connection Tightening ∗2
Clean Fan Wheel ∗2
Check Fan Tightening ∗2
Clean Drain Pans ∗2
∗1: Increase frequency in dusty zones.
∗2: Maintenance to be carried out by qualified service personal.
REQUIREMENT
Be sure to clean the heat exchanger with pressurized water.
If a commercially available detergent (strong alkaline or acid) cleaning agent is used, the surface treatment of
the heat exchanger will be marred, which may degrade the self cleaning performance.
For further details, contact the dealer.
Replacing antibacterial glass (4-Way Air Discharge Cassette Type only)
Request your dealer to replace the antibacterial glass every 10000 hours of cooling operation.
Part code
EVERY MONTH
EVERY MONTH
43179152
EVERY 4 MONTHS
1 (2)
EVERY 4 MONTHS
Antibacterial glass
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EVERY YEAR
1
1
1
1
EVERY YEAR
1
1
1
1
1
1
1
( ): High Wall Type