Room Thermostat Control - Using The Leaving Water Temperature Home; Domestic Hot Water Control; Instant Dhw (No Tank Installed); Tank - Daikin Altherma EHYHBX08AA Operation Manual

To read out the actual and desired room
temperature
1 Go to the room temperature home page (Room).
Result: You can read
20.0°C
Actual temperature
2 Press .
Result: You can read
22.0°C
Desired temperature
To temporarily overrule the room temperature
schedule
1 Go to the room temperature home page (Room).
2 Use or to adjust the temperature.
To change the mode from scheduled to preset
value
Prerequisite: User profile = Detailed.
1 Go to the room temperature home page (Room).
2 Press or to select a preset value ( or ).
Result: The mode will return to Scheduled according to the overrule
period.
To set the overrule period
Prerequisite: You switched the permission level to Advanced end
user.
1 Go to [7.2]: > User settings > Temperature lock.
2 Select a value and press
▪ Permanent
▪ hours (2, 4, 6, 8)
3.3.3 Room thermostat control - Using the
leaving water temperature home pages
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.
Example: Underfloor heating is designed for lower leaving
water temperature than
convectors and/or fan coil units. You only have to adjust
leaving water temperature settings in case of problems.
For more information about the leaving water temperature, see the
user reference guide.
3.4

Domestic hot water control

3.4.1

Instant DHW (no tank installed)

When there is a demand for hot water tapping, the boiler provides
DHW instantly.
Using the instant DHW home page
Depending on the user profile, the user interface gives you either a
basic or a detailed home page.
EHYHBH05AAV3* + EHYHBH/X08AAV3*
Daikin Altherma hybrid heat pump
4P349588-1D – 2016.02
out the actual temperature.
out the desired temperature.
:
radiators and heat pump
User profile = Basic
01:03
Tue
DHW
44°C
Desired temperature
To adjust the instant DHW temperature
1 Go to the instant DHW home page.
2 Press or to adjust the instant DHW temperature (DHW).
The instant DHW set point temperature may NOT be below 40°C.
3.4.2

Tank

The following modes are only applicable if a tank is installed and are
set by the installer.
Reheat mode
In reheat mode ( ),the DHW tank continuously heats up to the
temperature shown on the DHW tank temperature home page
(example: 50°C).
T t
1
60°C
50°C
40°C
15°C
00:00 07:00
T DHW tank temperature
t
t Time
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.
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 t
1
2
60°C
50°C
40°C
15°C
00:00 07:00
T DHW tank temperature
t
t Time
Scheduled + 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.
3 Operation
User profile = Detailed
Tue 01:03
44°C
DHW
Desired temperature
3
2 4
t
14:00 21:00
4
3
5
t
14:00 21:00
Operation manual
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