14
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Maintenance and service
Installer reference guide
60
RXM-A, ARXM-A
R32 split series
4P718129-3A – 2023.07
14.1 Overview: Maintenance and service
This chapter contains information about:
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Maintenance safety precautions
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The yearly maintenance of the outdoor unit
14.2 Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
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Before carrying out any maintenance or repair activity, ALWAYS switch off the
circuit breaker on the supply panel, remove the fuses or open the protection
devices of the unit.
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Do NOT touch live parts for 10 minutes after the power supply is turned off
because of high voltage risk.
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Please note that some sections of the electric component box are hot.
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Make sure you do NOT touch a conductive section.
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Do NOT rinse the unit. This may cause electric shocks or fire.
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch a metal part of the unit in
order to eliminate static electricity and to protect the PCB.
14.3 Checklist for yearly maintenance of the outdoor unit
Check the following at least once a year:
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Heat exchanger
The heat exchanger of the outdoor unit can get blocked up due to dust, dirt,
leaves, etc. It is recommended to clean the heat exchanger yearly. A blocked
heat exchanger can lead to too low pressure or too high pressure leading to
worse performance.
14.4 About the compressor
When servicing the compressor keep in mind following precautions:
