5
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Operation
User reference guide
31
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663480-1 – 2021.07
5.7 Domestic hot water control
5.7.1 About domestic hot water control
Depending on the DHW tank mode (installer setting), you use a different domestic
hot water control:
▪
Reheat only
▪
Scheduled reheat
INFORMATION
In case of error code AH and no interruption of the disinfection function occurred
due to domestic hot water tapping, following actions are recommended:
▪
It is recommended to program the start-up of the disinfection function at least
4 hours later than the last expected large hot water tapping. This start-up can be
set by installer settings (disinfection function).
When weather-dependent operation is used for the tank, the tank temperature is
determined automatically by the outdoor temperature. For more information, see
To determine which domestic hot water mode you are using (method 1)
Check the installer settings table filled in by the installer.
To determine which domestic hot water mode you are using (method 2)
1
Go to [5]:
Tank
.
2
Check which items are displayed:
[5.1]
[5.5]
Schedule
Powerful operation
If… is displayed
Then the DHW tank mode =…
Only [5.1]
Powerful
operation
Reheat only
[5.1]
Powerful operation
and [5.5]
Schedule
are
displayed
Scheduled reheat
5.7.2 Reheat mode
In reheat mode the storage tank continuously heats up to the temperature shown
on the home screen (example: 50°C) when the temperature drops below a certain
value.
