13 | Maintenance and service
Installer reference guide
247
ERGA04~08EA + EHVH04+08SU18+23EA
Daikin Altherma 3 R F
4P629090-1A – 2021.11
13 Maintenance and service
INFORMATION
This unit is a heating only model. Therefore, all references to cooling in this
document are NOT applicable.
NOTICE
General maintenance/inspection checklist. Next to the maintenance instructions in
this chapter, a general maintenance/inspection checklist is also available on the
Daikin Business Portal (authentication required).
The general maintenance/inspection checklist is complementary to the instructions
in this chapter and can be used as a guideline and reporting template during
maintenance.
NOTICE
Maintenance MUST be done by an authorised installer or service agent.
We recommend performing maintenance at least once a year. However, applicable
legislation might require shorter maintenance intervals.
NOTICE
Applicable legislation on fluorinated greenhouse gases requires that the refrigerant
charge of the unit is indicated both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent tonnes: GWP value of the
refrigerant × total refrigerant charge [in kg] / 1000
In this chapter
13.1 Maintenance safety precautions............................................................................................................................................ 247
13.2 Yearly maintenance ................................................................................................................................................................ 248
13.2.1 Yearly maintenance outdoor unit: overview ......................................................................................................... 248
13.2.2 Yearly maintenance outdoor unit: instructions..................................................................................................... 248
13.2.3 Yearly maintenance indoor unit: overview............................................................................................................ 248
13.2.4 Yearly maintenance indoor unit: instructions ....................................................................................................... 248
13.3 To drain the domestic hot water tank ................................................................................................................................... 251
13.4 To inspect the inside of the domestic hot water tank........................................................................................................... 252
13.5 About cleaning the water filter in case of trouble ................................................................................................................. 253
13.5.1 To remove the water filter..................................................................................................................................... 253
13.5.2 To clean the water filter in case of trouble ........................................................................................................... 254
13.5.3 To install the water filter........................................................................................................................................ 255
13.1 Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
NOTICE:Risk of electrostatic discharge
Before performing any maintenance or service work, touch a metal part of the unit in
order to eliminate static electricity and to protect the PCB.
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