Daikin ETSX16E Installer's Reference Manual page 271

15.2 To drain the storage tank
15.2.1 To drain the storage tank without a connected pressureless solar system
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679467-1D – 2023.11
DANGER: RISK OF BURNING/SCALDING
The water in the storage tank and all the connected piping can be very hot.
To prepare draining when no optional fill and drain kit is available
1 Open the screw plug of the spillover connection.
2 Unplug the spillover connector.
a Spillover connector
b Screw plug
3 Connect the loose end of the spillover drain hose to an appropriate drain.
To prepare draining when an optional fill and drain kit is available
1 Remove the connection cover from the screw plugs on the front.
2 Open the screw plug of the upper connection on the front.
a Connection cover
b Screw plug
3 Insert the screw plug into the fill and drain kit and secure with the clip
contained in the option kit.
1
b
a
b
a
1
b
2
15 Disposal
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Installer reference guide
271