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10.5
To inspect the inside of the
domestic hot water tank
DANGER: RISK OF BURNING/SCALDING
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.
Prerequisite: Remove the top panel. See
unit" [ 4 6].
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
3 Reconnect the pipe to the tank.
4 Reinstall the clip to fix the domestic hot water OUT pipe.
ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644729-1E – 2023.10
"4.2.1 To open the indoor
2
3
10 Maintenance and service
10.6
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:
▪
"10.6.1 To remove the water
▪
"10.6.2 To
clean
trouble" [ 4 38]
▪
"10.6.3 To install the water
10.6.1
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:
▪
"4.2.1 To open the indoor
▪
"4.2.2 To lower the switch box on the indoor
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
a
b
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.
filter" [ 4 37]
the
water
filter
in
case
filter" [ 4 38]
unit" [ 4 6]
unit" [ 4 7]
Installation manual
37
of
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