Using Weather-Dependent Curves; Energy Saving Tips - Daikin ETVH12S18EA6V Operation Manual

Item
Y1, Y2, Examples of desired tank temperature or leaving water
Y3, Y4 temperature. The icon corresponds to the heat emitter
for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
▪ : Domestic hot water tank
Possible actions on this screen
Select slope or offset.
Increase or decrease the slope/offset.
When slope is selected: set slope and go to offset.
When offset is selected: set offset.
Confirm changes and return to the submenu.
4.9.4

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
ETVH/X12S18+23EA6V+9W + ETBH/X12EF6V+9W
Daikin Altherma 3 H MT F+W
4P634883-1 – 2021.03
Description
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
Zone
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
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 "4.9.2 2-points
5

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.
5 Energy saving tips
Go to ...
Restriction: Only available to
installers.
[5.C] Tank > WD curve
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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