8 Configuration
Installer reference guide
61
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1 – 2015.01
The storage economic temperature denotes the lower desired tank
temperature. It is the desired temperature when a storage economic
action is scheduled (preferably during day).
#
Code
Description
[7.4.3.2]
[6-0B]
30°C~min(50, [6‑0E])°C (default: 45°C)
Reheat
The desired reheat tank temperature is used:
▪ in reheat mode or scheduled + reheat mode: The guaranteed
minimum tank temperature is set by T
HP OFF
–[6‑08], which is either
[6‑0C] or the weather dependent setpoint, minus the reheat
hysteresis. If the tank temperature drops below this value, the tank
is heated up.
#
Code
Description
[7.4.3.3]
[6-0C]
30°C~min(50, [6‑0E])°C (default: 45°C)
Weather dependent
The weather dependent installer settings define the parameters for
the weather dependent operation of the unit. When weather
dependent operation is active the desired tank temperature is
determined automatically depending on the averaged outdoor
temperature: low outdoor temperatures will result in higher desired
tank temperatures as the cold water tap is colder and vice versa. In
case of scheduled or screheat domestic hot water
preparation, the storage comfort temperature is weather dependent
(according to the weather dependent curve), the storage economic
and reheat temperature are NOT weather dependent. In case of
reheat only domestic hot water preparation, the desired tank
temperature is weather dependent (according to the weather
dependent curve). During weather dependent operation, the end-
user cannot adjust the desired tank temperature on the user
interface.
#
Code
Description
[A.4.6]
N/A
Weather dependent desired tank
temperature is:
▪ Fixed (default): disabled. All desired
tank temperature are NOT weather
dependent.
▪ Weather dep.: enabled. In scheduled
or
screheat
mode,
the
storage
comfort
temperature
is
weather dependent. Storage economic
and reheat temperatures are NOT
weather dependent. In reheat mode,
the desired tank temperature is
weather dependent.
Note:
When the displayed tank
temperature is weather dependent, it
cannot be adjusted on the user
interface.
#
Code
Description
[A.4.7]
[0-0E]
[0-0D]
[0-0C]
[0-0B]
Weather-dependent curve
T
DHW
T
a
[0-0C]
[0-0B]
[0-0E]
[0-0D]
▪ T
DHW
: The desired tank temperature.
▪ T
a
: The (averaged) outdoor ambient
temperature
▪ [0-0E]:
low
outdoor
ambient
temperature: –40°C~5°C (default: –
10°C)
▪ [0-0D]:
high
outdoor
ambient
temperature:
10°C~25°C
(default:
15°C)
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops
below
the
low
ambient
temperature: 45°C~[6‑0E]°C (default:
60°C)
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises
above
the
high
ambient
temperature: 35°C~[6‑0E]°C (default:
50°C)
Booster heater and heat pump operation
For systems with separate domestic hot water tank (only for
RHBH/X
)
