Daikin Altherma 3 H HT F - About Cleaning the Water Filter in Case of Trouble; To Remove the Water Filter

13 | Maintenance and service
Installer reference guide
247
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
Prerequisite: Open all the hot water tapping points to allow air to enter the
system.
Prerequisite: Remove the top panel. See "7.2.6To open the indoor unit"[471].
1 Remove the clip that fixes the domestic hot water OUT pipe.
2 Disconnect the pipe such that the tank is accessible for visual inspection (e.g.
with an endoscope).
1
2
3
3 Reconnect the pipe to the tank.
4 Reinstall the clip to fix the domestic hot water OUT pipe.
13.5 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:
▪ "13.5.1To remove the water filter"[4247]
▪ "13.5.2To clean the water filter in case of trouble"[4248]
▪ "13.5.3To install the water filter"[4249]
13.5.1 To remove the water filter
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 The water filter is located behind the switch box. To get access to it, see:
▪ "7.2.6To open the indoor unit"[471]
▪ "7.2.7To lower the switch box on the indoor unit"[473]
2 Close the stop valves of the water circuit.