Daikin ARXF20C5V1B Installer's Reference Manual page 53

(A)RXF20~42C5V1B
R32 split series
4P519439-10J – 2021.06
▪ 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.
12 Maintenance and service
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Installer reference guide
53