Daikin RXF20D5V1B Installer's Reference Manual page 53

RXF20~42D5V1B + ARXF20~42D5V1B
Daikin room air conditioner
4P519439-17R – 2021.12
▪ 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