5 Operation
Operation manual
11
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680075-1B – 2022.02
4
Select
Paste
.
Delete
Edit
Copy
Paste
Result:
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined
C
5
Repeat this action for all other weekdays.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined
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
08:00
23:00
--:--
Comfort
Eco
--
12
24
Mon
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
C
5.8
Weather-dependent curve
5.8.1
What is a weather-dependent curve?
Weather-dependent operation
The unit operates 'weather dependent' if the desired tank
temperature is determined automatically by the outdoor temperature.
If the outdoor temperature drops or rises, the unit compensates
instantly. Thus, the unit does not have to wait for feedback by the
user to increase or decrease the target temperature of the tank.
Because it reacts more quickly, it prevents high rises and drops of
the 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 target temperature of the tank 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.
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
"5.8.4 Using weather-dependent
12].
Availability
The weather-dependent curve is available for:
▪ Tank (only available to installers)
INFORMATION
To operate weather dependent, correctly configure the
setpoint of the tank. See
"5.8.4 Using weather-dependent
5.8.2
2-points curve
Define the weather-dependent curve with these two setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Example
Y1
Y2
X1
X2
Item
Description
X1, X2
Examples of outdoor ambient temperature
Y1, Y2
Examples of desired tank temperature. The icon
corresponds to the heat emitter for that zone:
▪
: Domestic hot water tank
Possible actions on this screen
Go through the temperatures.
Change the temperature.
Go to the next temperature.
Confirm changes and proceed.
5.8.3
Slope-offset curve
Slope and offset
Define the weather-dependent curve by its slope and offset:
▪ Change the
slope
to differently increase or decrease the target
temperature of the tank for different ambient temperatures. For
example, if tank water temperature is in general fine but at low
