Energy Saving Tips; Maintenance And Service; Overview: Maintenance And Service - Daikin EWAA004D2V3P-H Operation Manual

6 Energy saving tips

Go to setpoint mode ...
[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
To change the type of weather-dependent curve
To change the type for all zones (main + additional), 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
To change the weather-dependent curve
Zone
Main zone – Heating
Main zone – Cooling
Additional zone – Heating
Additional zone – Cooling
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. 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:
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:
You feel ...
At regular outdoor At cold outdoor
temperatures ... temperatures ...
OK Cold
OK Hot
Operation manual
16
Set the setpoint mode to ...
WD heating, fixed cooling
OR Weather dependent
Weather dependent
WD heating, fixed cooling
OR Weather dependent
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
Fine-tune with slope and
offset:
Slope Offset
↑ —
↓ —
↓ ↑
— ↑
↓ ↑
↑ ↓
↑ ↓
— ↓
Fine-tune with
setpoints:
(a) (a) (a) (a)
Y2 Y1 X1 X2
↑ — ↑ —
↓ — ↓ —
You feel ...
At regular outdoor At cold outdoor
temperatures ... temperatures ...
Cold OK
Cold Cold
Cold Hot
Hot OK
Hot Cold
Hot Hot
(a) curve" [ 4 15].
See "5.8.2 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.
7

Maintenance and service

7.1 Overview: Maintenance and
service
The installer has to perform a yearly maintenance. You can find the
contact/helpdesk number via the user interface.
1 Go to [8.3]: Information > Dealer information.
As end user, you have to:
▪ Keep the area around the unit clean.
▪ Keep the user interface clean with a soft damp cloth. Do NOT use
any detergents.
▪ Regularly check if the water pressure is above 1 bar.
Refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
Periodical inspections for refrigerant leaks may be required
depending on the applicable legislation. Contact your installer for
more information.
Fine-tune with
setpoints:
(a) (a) (a) (a)
Y2 Y1 X1 X2
— ↑ — ↑
↑ ↑ ↑ ↑
↓ ↑ ↓ ↑
— ↓ — ↓
↑ ↓ ↑ ↓
↓ ↓ ↓ ↓
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688015-1C – 2022.09