Daikin Altherma 3 R ECH2O, Руководство по установке для специалистов, Страница: 261 / 316

14 | Maintenance and service
Installer reference guide
261
ERLA11~W1 + EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH₂O
4P663482-1A – 2021.11
14.3 Yearly maintenance
14.3.1 Yearly maintenance outdoor unit: overview
Check the following at least once a year:
▪ Heat exchanger
14.3.2 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.
14.3.3 Yearly maintenance indoor unit: overview
DANGER: RISK OF BURNING/SCALDING
The water in the storage tank and all the connected piping can be very hot.
▪ Water pressure
▪ Magnetic filter/dirt separator
▪ Water pressure relief valve
▪ Relief valve hose
▪ Switch box
▪ Storage tank water level
14.3.4 Yearly maintenance indoor unit: instructions
Water pressure – Space heating/cooling circuit
Keep water pressure above 1 bar. If it is lower, add water.
Magnetic filter/dirt separator
NOTICE
The optional magnetic filter/dirt separator requires yearly maintenance. Follow the
instruction of the manual of the optional equipment.
Water pressure relief valve
Open the valve and check if it operates correctly. The water may be very hot!
Checkpoints are:
▪ The water flow coming from the relief valve is high enough, no blockage of the
valve or in between piping is suspected.
▪ Dirty water coming out of the relief valve:
- open the valve until the discharged water does NOT contain dirt anymore
- flush the system
It is recommended to do this maintenance more frequently.