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Maintenance and service
Installer reference guide
246
EPRA14~18D + ETV23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
Prerequisite:
Close the cold water supply.
Prerequisite:
Open all the hot water tapping points to allow air to enter the
system.
1
"7.2.6 To open the indoor unit"
71].
2
Remove the user interface panel. See
"7.2.6 To open the indoor unit"
3
Lower the switchbox. See
"7.2.7 To lower the switch box on the indoor
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.
2
1
7
Tightening torques for installation:
Item
Tightening torque
Tube connection
30 N•m
Temperature and pressure relief valve
40 N•m
13.4 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.
Summary of Contents for Altherma 3 H HT F
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