Daikin EBVZ-D9W - Yearly Maintenance; Yearly Maintenance Outdoor Unit: Overview; Yearly Maintenance Outdoor Unit: Instructions; Yearly Maintenance Indoor Unit: Overview

14 | Maintenance and service
Installer reference guide
239
ERLA11~16D + EBVZ16S18+23D
Daikin Altherma 3 R F
4P643604-1B – 2022.05
14.2 Yearly maintenance
14.2.1 Yearly maintenance outdoor unit: overview
Check the following at least once a year:
▪ Heat exchanger
14.2.2 Yearly maintenance outdoor unit: instructions
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.
14.2.3 Yearly maintenance indoor unit: overview
▪ Water pressure
▪ Water filter
▪ 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
14.2.4 Yearly maintenance indoor unit: instructions
Water pressure
Keep water pressure above 1bar. If it is lower, add water.
Water filter
Clean the water filter.
NOTICE
Handle the water filter with care. Do NOT use excessive force when you reinsert the
water filter so as NOT to damage the water filter mesh.