Using The Leaving Water Temperature Home Pages (Main + Additional); Domestic Hot Water Control; Reheat Mode; Scheduled Mode - Rotex RHBH04CA3V Manuel D'utilisation

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 ).
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)
Result: This overrule period (Temperature lock) remains valid until
you change it again.
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: Under floor heating is designed for lower leaving
water temperature than radiators and heat pump 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 Reheat mode

In reheat mode ( ), the DHW tank continuously heats up to the
desired temperature (example: 50°C).
T t
1
2
60°C
50°C
40°C
15°C
00:00 07:00
T : DHW tank temperature
t
t: Time
INFORMATION
It is recommended NOT to use the selection of ([6-0D]=0,
[A.4.1] Domestic hot water Setpoint mode=Reheat only) in
case of a domestic hot water tank without internal booster
heater.
The risk of space heating (cooling) capacity shortage/comfort
problems is significant (in case of frequent domestic hot
water operation, frequent and long space heating/cooling
interruption will happen).
RHVH/X04+08S18CA+RHVH/X08S26CA+RHVH/X16S18+26CA +
RHBH/X04+08+16CA
Rotex HPSU low temperature Bi-Bloc
4P330421-1A – 2012.11
:
4
3
5
t
14:00 21:00

3.4.2 Scheduled mode

In scheduled mode ( ), the DHW tank produces hot water
corresponding to a schedule. The best time to produce hot water is
during the night, because (possibly):
Space heating demand is lower
Electric 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

3.4.3 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 the preset value. This ensures
that a minimum amount of hot water is available at all times.
Example:
T t
1
2
60°C
50°C
45°C
40°C
15°C
00:00 07:00

3.4.4 Using the DHW tank temperature home page

Typical DHW tank temperature home pages
Depending on the user profile, you can see and do more or less on
the home page. The examples in the illustrations below are in
DHW tank mode = Scheduled.
User profile = Basic
Mon 1 5 : 2 0
Tank
60°C
D e s i r e d t e m p e r a t u r e
Mon 1 5 : 2 0
Tank
4
D e s i r e d t e m p e r a t u r e
3 Operation
4
3
5
t
14:00 21:00
), the domestic hot water control is
3 4
t
14:00 21:00
User profile = Detailed
Mon 1 5 : 2 0
60°C
Ta n k
Storage comfort
Tue 0 0 : 0 0
Mon 1 5 : 2 0
4
Ta n k
Storage comfort
Tue 0 0 : 0 0
Operation manual
4