To Inspect The Inside Of The Domestic Hot Water Tank - Daikin Altherma 3 H HT F Installer's Reference Manual

13 | Maintenance and service

13.4 To inspect the inside of the domestic hot water tank

Installer reference guide
246
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. See
2 Remove the user interface panel. See
3 Lower the switchbox. See
4
unit" [ 73].
4 Remove the tube from the temperature and pressure relief valve that is
located on top of the tank.
5 Remove the temperature and pressure relief valve from the tank.
6 Use a drain hose and a pump to drain the tank via the access point.
1
7 Tightening torques for installation:
Tube connection
Temperature and pressure relief valve
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.
"7.2.6 To open the indoor
"7.2.6 To open the indoor
"7.2.7 To lower the switch box on the indoor
2
Item
4
unit" [ 71].
4
unit" [ 71].
Tightening torque
30 N•m
40 N•m
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03