Using The Leaving Water Temperature Home Pages (Main + Additional); Domestic Hot Water Control; Instant Dhw (No Tank Installed); Tank - Rotex HPU Hybrid Série Manuel D'utilisation

To set the overrule period
1 Go to [7.2]: > User settings > Temperature lock.
2 Select a value and press
▪ Permanent
▪ hours (2, 4, 6, 8)
3.3.3 Using the leaving water temperature
home pages (main + additional)
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. The DHW temperature is visible on the boiler's main
display.
Using the instant DHW home page
Depending on the user profile, the user interface gives you either a
basic or a detailed home page.
User profile = Basic
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.
RHYHBH05AA + RHYHBH/X08AA
ROTEX HPU hybrid heat pump module
4P353066-1B – 2013.10
:
radiators and heat pump
User profile = Detailed
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
desired temperature (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 booster mode is active, the risk of
space heating/cooling and capacity shortage comfort
problems is significant. In case of frequent domestic hot
water operation, frequent and long space heating/cooling
interruptions will happen.
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
▪ Electricity tariffs are 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 same as in scheduled mode. However, when the DHW tank
temperature drops below a preset value (=Reheat; example: 45°C),
the DHW tank heats up until it reaches this preset value. This
ensures that a minimum amount of hot water is available at all times.
3 Operation
3
2 4
14:00 21:00
t
4
3
5
14:00 21:00
t
), the domestic hot water control is
Operation manual
15