Daikin Altherma EABH16DA6V, Operation Manual

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3 Operation
Operation manual
6
EABH/X16DA+9W + EAVH/9W
Daikin Altherma – Low temperature split
4P556068-1 – 2018.10
To restrict automatic changeover according to a schedule
Conditions: You set the space operation mode to Automatic.
1 Go to [4.2]: Space heating/cooling > Operation mode
schedule.
2 Select a month.
3 For each month, select an option:
▪ Reversible: Not restricted
▪ Heating only: Restricted
▪ Cooling only: Restricted
4 Confirm the changes.
3.3.2 To change the desired room temperature
During room temperature control, you can use the room temperature
setpoint screen to read out and adjust the desired room temperature.
1 Go to [1]: Room.
You can read out the desired and actual room
temperature in the center of the setpoint screen.
2 Adjust the desired room temperature.
If scheduling is on after changing the desired room temperature
▪ The temperature will stay the same as long as there is no
scheduled action.
▪ The desired room temperature will return to its scheduled value
whenever a scheduled action occurs.
You can avoid scheduled behaviour by (temporarily) turning off
scheduling.
To turn off room temperature scheduling
1 Go to [1.1]: Room > Schedule.
2 Select No.
3.3.3 To change the desired leaving water
temperature
INFORMATION
The leaving water is the water that is sent to the heat
emitters. The desired leaving water temperature is set by
your installer in accordance with the heat emitter type.
Only adjust the leaving water temperature settings in case
of problems.
You can use the leaving water temperature setpoint screen to read
out and adjust the desired leaving water temperature.
1 Go to [2]: Main zone or [3]: Additional zone.
You can read out the desired and actual leaving
water temperature in the center of the setpoint
screen.
2 Adjust the desired leaving water temperature.
3.4 Domestic hot water control
3.4.1 Reheat mode
In reheat mode the DHW tank continuously heats up to the
temperature shown on the home screen (example: 50°C).
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
3
4
Tt
T
t
DHW tank temperature
t Time
INFORMATION
Risk of space heating capacity shortage for domestic hot
water tank without internal booster heater: In case of
frequent domestic hot water operation, frequent and long
space heating/cooling interruption will happen when
selecting the following:
Tank > Heat up mode > Reheat only.
INFORMATION
When the DHW tank mode is reheat, the risk for capacity
shortage and comfort problem is significant. In case of
frequent reheat operation, space heating/cooling function
is regularly interrupted.
3.4.2 Scheduled mode
In scheduled mode the DHW tank produces hot water corresponding
to a schedule. The best time to allow the tank to produce hot water is
at night, because the space heating demand is lower.
Example:
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
3
4
5
Tt
T
t
DHW tank temperature
t Time
3.4.3 Sch reheat mode
In scheduled + reheat mode, the domestic hot water control is the
same as in scheduled mode. However, when the DHW tank
temperature drops below a preset value (=reheat tank temperature –
hysteresis value; example: 35°C), the DHW tank heats up until it
reaches the reheat set point (example: 45°C). This ensures that a
minimum amount of hot water is available at all times.
Example:
t
Tt
60°C
00:00 07:00
50°C
45°C
15°C
14:00 21:00
35°C
1
2
4
5
3
T
t
DHW tank temperature
t Time