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Maintenance and service
Installer reference guide
212
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
Chemical disinfection
If the applicable legislation requires a chemical disinfection in specific situations,
involving the domestic hot water tank, please be aware that the domestic hot
water tank is a stainless steel cylinder. We recommend to use a non-chloride based
disinfectant approved for use with water intended for human consumption.
NOTICE
When using means for descaling or chemical disinfection, it must be ensured that the
water quality remains compliant with EU directive 98/83 EC.
12.4 To drain the domestic hot water tank
DANGER: RISK OF BURNING
The water in the tank can be very hot.
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
Prerequisite:
Close the cold water supply.
Prerequisite:
Open all the hot water tapping points to allow air to enter the
system.
1
Remove the top panel, the user interface panel and the front panel.
2
Lower the switch box.
3
Remove the stop from the access point to the tank.
4
Use a drain hose and a pump to drain the tank via the access point.
a
a
Access point to the tank
12.5 About cleaning the water filter in case of trouble
INFORMATION
For yearly maintenance, you do not have to remove the water filter from the unit to
clean it. But in case of trouble with the water filter, you might have to remove it so
that you can thoroughly clean it. Then you need to do as follows:
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"12.5.1 To remove the water filter"
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"12.5.2 To clean the water filter in case of trouble"
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