Maintenance - Lennox 4 Series Installation Manual

9.0.

MAINTENANCE

CAUTION
• Regular maintenance and service should be performed by authorised personnel to prolong the
unit life span.
9.1. Outdoor Heat Exchanger
• Outdoor heat exchanger is required to be cleaned once every two months.
• Use a 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.
9.2. Drain Pipe
• Regularly check the drain pipe to ensure it is not blocked and condensate can be drained freely.
9.3. Maintenance Before Usage Season
• Check the inlet/outlet of the indoor/outdoor unit is not blocked.
• Check the ground wire is earthed.
• Check the battery of remote wireless controller has been replaced.
• Check the filter screen has been set soundly.
• After long period of shutdown, turn on the main power switch 8 hours before re-operating the unit
so as to preheat the compressor crankcase.
9.4. Maintenance After Usage Season
• Cut off main power supply of the unit.
• Clean filter screen and indoor and outdoor units.
• Clean the dust and sundries on the indoor and outdoor units.
• In the event of corrosion, use the anti-rust paint to stop spreading of rust.
28
LENNOX MULTI SPLIT INVERTER
13 23 50
Outdoor Unit
| lennoxaus.com.au