8 Configuration
Installer reference guide
52
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1 – 2015.01
#
Code
Description
[A.2.3.2]
[6-03]
BUH: step 1: The capacity of the first
step of the backup heater at nominal
voltage. Nominal value 3 kW. Default:
3 kW.
Range: 0~10 kW (in steps of 0.2 kW)
[A.2.3.3]
[6-04]
BUH: step 2: Only applies to a two-step
backup heater (*9W). The capacity
difference between the second and first
step of the backup heater at nominal
voltage. Nominal value depends on the
backup heater configuration:
▪ 3 kW, 1N~ 230 V: 0 kW
▪ 6 kW, 1N~ 230 V: 3 kW (6 kW-3 kW)
▪ 6 kW, 3~ 230 V: 3 kW (6 kW-3 kW)
▪ 6 kW, 3N~ 400 V: 3 kW (6 kW-3 kW)
▪ 9 kW, 3N~ 400 V: 6 kW (9 kW-3 kW)
Range: 0~10 kW (in steps of 0.2 kW):
▪ *3V: default 0 kW
▪ *9W: default 6 kW
[A.2.3.6]
[6-07]
Bottom plate heater: Only applies to an
optional bottom plate heater. The
capacity of the optional bottom plate
heater at nominal voltage. Default: 0 W.
Range: 0~200 W (in steps of 10 W)
8.2.5
Space heating/cooling control
The basic required settings in order to configure the space heating/
cooling of your system are described in this chapter. The weather-
dependent installer settings define the parameters for the weather-
dependent operation of the unit. When weather-dependent operation
is active, the water temperature is determined automatically
depending on the outdoor temperature. Low outdoor temperatures
will result in warmer water and vice versa. During weather-
dependent operation, the user has the possibility to shift up or down
the target water temperature by a maximum of 5°C.
See the user reference guide and/or operation manual for more
details about this function.
Leaving water temperature: Main zone
#
Code
Description
[A.3.1.1.1]
N/A
LWT setpoint mode:
▪ Fixed (default)
The
desired
leaving
water
temperature is:
▪ NOT weather-dependent (i.e. does
NOT depend on the outdoor
ambient temperature)
▪ fixed in time (i.e., NOT scheduled)
▪ Weather dep.: The desired leaving
water temperature is:
▪ weather-dependent (i.e. depends
on
the
outdoor
ambient
temperature)
▪ fixed in time (i.e., NOT scheduled)
continued >>
#
Code
Description
[A.3.1.1.1]
N/A
<< continuation
▪ Fixed/scheduled: The desired leaving
water temperature is:
▪ NOT
weather-dependent
(i.e.,
does NOT depend on the outdoor
ambient temperature)
▪ according
a
schedule.
The
scheduled actions consists of
desired shift actions, either preset
or custom.
Remark:
This value can only be
set in leaving water temperature
control.
▪ WD/scheduled: The desired leaving
water temperature is:
▪ weather-dependent
(i.e.,
does
depend on the outdoor ambient
temperature)
▪ according
a
schedule.
The
scheduled actions consists of
desired
leaving
water
temperatures either preset or
custom.
Remark:
This value can only be
set in leaving water temperature
control.
#
Code
Description
[7.7.1.1]
[1-00]
[1-01]
[1-02]
[1-03]
Set weather-dependent heating:
[1-03]
[1-02]
Ta
Tt
[1-00]
[1-01]
▪ T
t
: Target leaving water temperature
(main)
▪ T
a
: Outdoor temperature
continued >>
