Yearly Maintenance; Yearly Maintenance Outdoor Unit: Overview; Yearly Maintenance Outdoor Unit: Instructions; Yearly Maintenance Indoor Unit: Overview - Daikin EPRA18DAW1 Installer's Reference Manual

12 | Maintenance and service

12.3 Yearly maintenance

12.3.1 Yearly maintenance outdoor unit: overview

12.3.2 Yearly maintenance outdoor unit: instructions

12.3.3 Yearly maintenance indoor unit: overview

12.3.4 Yearly maintenance indoor unit: instructions

Installer reference guide
202
Check the following at least once a year:
▪ Heat exchanger
▪ Water filter
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.
Water filter
Clean and rinse the water filter.
NOTICE
Handle the filter with care. To prevent damage to the mesh of the filter, do NOT use
excessive force when you reinsert it.
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▪ Water pressure
▪ Water filters
▪ Magnetic filter/dirt separator
▪ Water pressure relief valve
▪ Relief valve hose
▪ Pressure relief valve of the domestic hot water tank
▪ Switch box
▪ Descaling
▪ Chemical disinfection
Water pressure
Keep water pressure above 1 bar. If it is lower, add water.
Water filters
Clean the water filters.
EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01