Daikin Altherma 3 H MT ECH2O - Weather-Dependent Curve; What Is a Weather-Dependent Curve

5 Operation
Operation manual
15
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663481-1 – 2021.07
3 Select Tuesday.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
C
4 Select Paste.
Delete
Edit
Copy
Paste
Result:
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
C
5 Repeat this action for all other weekdays.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
C
—
To program the schedule for Saturday and copy it to Sunday
1 Select Saturday.
2 Select Edit.
3 Use the left dial to select an entry and edit the entry
with the right dial.
0
8:00
23:00
--:--
21°C
18°C
--
12 24
Sat
4 Confirm the changes.
5 Select Saturday.
6 Select Copy.
7 Select Sunday.
8 Select Paste.
Result:
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
C
To rename the schedule
1 Select the name of the current schedule.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
2 Select Rename.
Delete
Rename
Select
3 (optional) To delete the current schedule name,
browse through the character list until ← is
displayed, then press to remove the previous
character. Repeat for each character of the schedule
name.
4 To name the current schedule, browse through the
character list and confirm the selected character.
The schedule name can contain up to 15characters.
5 Confirm the new name.
INFORMATION
Not all schedules can be renamed.
5.9 Weather-dependent curve
5.9.1 What is a weather-dependent curve?
Weather-dependent operation
The unit operates 'weather dependent' if the desired leaving water or
tank temperature is determined automatically by the outdoor
temperature. It therefore is connected to a temperature sensor on
the North wall of the building. If the outdoor temperature drops or
rises, the unit compensates instantly. Thus, the unit does not have to
wait for feedback by the thermostat to increase or decrease the
temperature of the leaving water or tank. Because it reacts more
quickly, it prevents high rises and drops of the indoor temperature
and water temperature at tap points.
Advantage
Weather-dependent operation reduces energy consumption.
Weather-dependent curve
To be able to compensate for differences in temperature, the unit
relies on its weather-dependent curve. This curve defines how much
the temperature of the tank or leaving water must be at different
outdoor temperatures. Because the slope of the curve depends on
local circumstances such as climate and the insulation of the house,
the curve can be adjusted by an installer or user.
Types of weather-dependent curve
There are 2 types of weather-dependent curves:
▪ 2-points curve
▪ Slope-offset curve
Which type of curve you use to make adjustments, depends on your
personal preference. See "5.9.4 Using weather-dependent
curves"[417].
Availability
The weather-dependent curve is available for:
▪ Main zone - Heating