44
FA ROTEX RoCon mb • 09/2017
6
x
Parameter settings
6.2.2 "System Configuration" level
Parameters
Description
Access
Setting range
Min / Max
Factory
setting
Incre-
ment
BE
HF
Power DHW
Heat output of the electric heater booster for hot water preparation
N
E
1000 -
40,000 W
3000 W
1000 W
BUH s1 power
Heat output of the electric heater booster for heating support stage 1
See operating instructions for heating element BUxx.
N
E
-
-
-
BUH s2 power
Heat output of the electric heater booster for heating support stage 2
See operating instructions for heating element BUxx.
N
E
-
-
-
Power BIV
Setting limits the heating support output.
N
E
3000 -
40000 W
15000 W
1000 W
TDiff-DHW CH Sup-
port
Only if parameter [HZU] = On.
Heating support is activated if
Tdhw > T
HZUmin
+ 4 K
and
Tdhw > [T-HS Setpoint] + 1 K.
Heating support is deactivated if
Tdhw < T
HZUmin
or
Tdhw < [T-HS Setpoint].
T
HZUmin
= currently active target hot water temperature [T-DHW Setpoint] + set parameter val-
ue [TDiff-DHW CH Support].
Tdhw = current hot water storage tank temperature
[T-HS Setpoint] = currently active target feed temperature (see tab. 6-12 and chap. 3.6.4)
N
E
2 - 15
5
1
T vbh1 max
Setting limits the target feed temperature (measured against t
V, BH
) when the heating support
function is active.
N
E
5 - 85 °C
60 °C
1 °C
Equilibrium Temp
Setting influences the effect of the potential-free AUX switching contact (toggle switch output
A) defined in the parameter [AUX Fct].
Only if parameter [Equilibrium Func.] = On:
Outside temperature as of which the optional heater booster is activated to support room heat-
ing. The bi-valence temperature is relevant to operation of the optional heater booster due to
a backup requirement (room heating mode). The temperature of the temperature sensor (info
value TA) integrated in the heat pump outdoor unit is used for this.
E
E
-15 to +35 °C
0 °C
1 °C
Function BSC
Selection of the functionality of switching contact EXT (J8):
0: evaluation of the resistance valves (see chap. 3.4.2)
1: evaluation as a burner blocking contact. If the switching contact is closed, the external heat
generator has priority.
S
E
0 - 1
0
-
Quite Mode
Mode for low-noise operation at reduced output (see chap. 3.4.11).
0: deactivated
1: activated
2: only operated in whisper mode at night from 22:00 to 06:00 hours.
E
E
0 - 2
0
-
Quiet level
On selection of low-noise operation, three noise levels can be set.
0: less quiet. The output can decline in colder ambient conditions.
1: medium quiet. Reduced output is possible under all conditions.
2: quietest. The output is reduced under all conditions.
S
E
0 - 2
0
-
AUX Fct
Setting assigns the switching conditions for the potential-free AUX switching contact (toggle
switch output A, see chap. 3.6.9).
0: function deactivated
AUX switching contact switches;
1: if storage tank temperature (Tdhw)
≥
value of parameter [T-DHW 1 min].
2: if a cooling request or heating request is present.
3: if a hot water request to the backup heater (BUxx) is present or the configured backup heater
is requested for heating support.
4: if an error is pending.
5: if the sensor value (TVBH) is > 60 °C.
6: if the outside temperature is < parameter value [Equilibrium Temp].
→
Heat pump continues to operate = parallel bi-valence mode.
7: if the outside temperature is < parameter value [Equilibrium Temp] + a heating request or a
hot water request is present.
→
Heat pump does not continue to operate = alternative bi-valence mode.
8: if a hot water request is present.
9: if the outside temperature is < parameter value [Equilibrium Temp] + heat request "room
heating" (not for hot water request). Heat pump no longer operates in room heating mode be-
low the value set in the parameter [Equilibrium Temp] - only in hot water mode.
Application: alternative room heating bi-valence mode if the boiler is hydraulically integrated so
that it directly heats the unpressurised storage tank water of the ROTEX HPSU monobloc com-
pact (connection via solar connections).
10: "multi-oil" - if the outside temperature is < parameter value [Equilibrium Temp] + heat re-
quest "room heating" (not for hot water request). Heat pump no longer operates in room heat-
ing mode below the value set in the parameter [Equilibrium Temp] - only in hot water mode.
Application: alternative room heating bi-valence mode if the boiler is hydraulically integrated in
the heat pump feed. For this application type, the frost protection function must be deactivated
on the ROTEX HPSU monobloc compact (parameter [T-Frost Protect] = Off).
11: if the heat pump is in "Cooling" operating mode.
N
E
0 - 9
0
1
AUX time
AUX switching contact (A) only switches after a delay if the switching condition (see parameter
[AUX Fct]) is present for longer than the set time.
N
E
0 - 600 s
120 s
5 s
T-DHW 1 min
Storage tank temperature (Tdhw) switching threshold for AUX switching contact (see parame-
ter [AUX Fct]).
N
E
20 - 85 °C
50 °C
1 °C
Delta-T CH
Target spread for room heating. The heating circulation pump of the ROTEX HPSU monobloc
compact regulates the flow rate to achieve the target spread stored in the parameter between
the target feed temperature and return temperature (t
V, BH
- t
R1
).
N
E
2 - 20 K
7 K
1 K
