13 | Maintenance and service
Installer reference guide
244
EPRA08~12EAV3+W1 + ETVH12SU18+23EA6V
Daikin Altherma 3 H MT F
4P644482-1 – 2021.03
13.6.1 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:
▪ "7.2.5To open the indoor unit"[469]
▪ "7.2.6To lower the switch box on the indoor unit"[471]
2 Close the stop valves of the water circuit.
3 Close the valve (if equipped) of the water circuit towards the expansion vessel.
4 Remove the cap on the bottom of the magnetic filter/dirt separator.
5 Connect a drain hose to the bottom of the water filter.
6 Open the valve on the bottom of the water filter to drain water from the
water circuit. Collect the drained water in a bottle, sink,… using the installed
drain hose.
7 Remove the 2 clips that fix the water filter.
a Clip
b Magnetic filter/dirt separator
8 Remove the water filter.
9 Remove the drain hose from the water filter.
NOTICE
Although the water circuit is drained, some water may be spilled when removing the
magnetic filter/dirt separator from the filter housing. ALWAYS clean up spilled water.
13.6.2 To clean the water filter in case of trouble
1 Remove the water filter from the unit. See "13.6.1 To remove the water
filter"[4244].
NOTICE
To protect the piping connected to the magnetic filter/dirt separator from damage it
is recommended to perform this procedure with the magnetic filter/dirt separator
removed from the unit.
2 Unscrew the bottom of the water filter housing. Use an appropriate tool if
needed.
NOTICE
Opening the magnetic filter/dirt separator is ONLY required in case of severe issues.
Preferably this action is never to be done during the complete lifetime of the
magnetic filter/dirt separator.
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