Using Weather-Dependent Curves; Energy Saving Tips - Daikin ETSHB12P30EF Operation Manual

5.9.4

Using weather-dependent curves

Configure weather-dependent curves as following:
To define the setpoint mode
To use the weather-dependent curve, you need to define the correct
setpoint mode:
Go to setpoint mode ...
Main zone – Heating
[2.4] Main zone > Setpoint
mode
Main zone – Cooling
[2.4] Main zone > Setpoint
mode
Additional zone – Heating
[3.4] Additional zone >
Setpoint mode
Additional zone – Cooling
[3.4] Additional zone >
Setpoint mode
Tank
[5.B] Tank > Setpoint mode
To change the type of weather-dependent curve
To change the type for all zones (main + additional) and for the tank,
go to [2.E] Main zone > WD curve type.
Viewing which type is selected is also possible via:
▪ [3.C] Additional zone > WD curve type
▪ [5.E] Tank > WD curve type
Restriction: Only available to installers.
To change the weather-dependent curve
Zone
Main zone – Heating
Main zone – Cooling
Additional zone – Heating
Additional zone – Cooling
Tank
INFORMATION
Maximum and minimum setpoints
You cannot configure the curve with temperatures that are
higher or lower than the set maximum and minimum
setpoints for that zone or for the tank. When the maximum
or minimum setpoint is reached, the curve flattens out.
To fine-tune the weather-dependent curve: slope-offset curve
The following table describes how to fine-tune the weather-
dependent curve of a zone or tank:
You feel ...
At regular outdoor At cold outdoor
temperatures ... temperatures ...
OK Cold
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663481-1A – 2022.07
Set the setpoint mode to ...
WD heating, fixed cooling
OR Weather dependent
Weather dependent
WD heating, fixed cooling
OR Weather dependent
Weather dependent
Restriction: Only available to
installers.
Weather dependent
Go to ...
[2.5] Main zone > Heating WD
curve
[2.6] Main zone > Cooling WD
curve
[3.5] Additional zone >
Heating WD curve
[3.6] Additional zone >
Cooling WD curve
Restriction: Only available to
installers.
[5.C] Tank > WD curve
Fine-tune with slope and
offset:
Slope Offset
↑ —
You feel ...
At regular outdoor At cold outdoor
temperatures ... temperatures ...
OK Hot
Cold OK
Cold Cold
Cold Hot
Hot OK
Hot Cold
Hot Hot
To fine-tune the weather-dependent curve: 2-points curve
The following table describes how to fine-tune the weather-
dependent curve of a zone or tank:
You feel ...
At regular outdoor At cold outdoor
temperatures ... temperatures ...
OK Cold
OK Hot
Cold OK
Cold Cold
Cold Hot
Hot OK
Hot Cold
Hot Hot
(a) curve" [ 4 16].
See "5.9.2 2-points
6

Energy saving tips

Tips about room temperature
▪ Make sure the desired room temperature is NEVER too high (in
heating mode) or too low (in cooling mode), but ALWAYS
according to your actual needs. Each saved degree can save up
to 6% of heating/cooling costs.
▪ Do NOT increase/decrease the desired room temperature to
speed up space heating/cooling. The space will NOT heat up/cool
down faster.
▪ When your system layout contains slow heat emitters (example:
underfloor heating), avoid large fluctuation of the desired room
temperature and do NOT let the room temperature drop too low/
rise too high. It will take more time and energy to heat up/cool
down the room again.
▪ Use a weekly schedule for your normal space heating or cooling
needs. If necessary, you can easily deviate from the schedule:
▪ For shorter periods: You can overrule the scheduled room
temperature until the next scheduled action. Example: When
you have a party, or when you are leaving for a couple of hours.
▪ For longer periods: You can use the holiday mode.
Tips about DHW temperature
▪ Make sure the desired DHW temperature, reflected by storage
tank temperature, is NOT too high. Example: After installation,
lower the tank temperature daily by 1°C and check if you still have
enough hot water.
6 Energy saving tips
Fine-tune with slope and
offset:
Slope Offset
↓ —
↓ ↑
— ↑
↓ ↑
↑ ↓
↑ ↓
— ↓
Fine-tune with
setpoints:
(a) (a) (a) (a)
Y2 Y1 X1 X2
↑ — ↑ —
↓ — ↓ —
— ↑ — ↑
↑ ↑ ↑ ↑
↓ ↑ ↓ ↑
— ↓ — ↓
↑ ↓ ↑ ↓
↓ ↓ ↓ ↓
Operation manual
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