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6.1
EN-12
System-specific parameters
The runtime between the OPEN and CLOSED
end positions varies according to the mixer
used. The mixer runtime should be adjusted to
ensure optimum temperature regulation.
The mixer hysteresis forms the neutral zone for
operation of the 2nd heat generator. If the set
temperature plus hysteresis is reached, a
"Mixer closed" signal is generated. If the set
temperature minus hysteresis is undershot, a
"Mixer open" signal is generated.
This setting determines the response of the
2nd heat generator during a utility block
(interruption of the supply voltage).
Utility 1: The 2nd heat generator is only
enabled at bivalence level B3 during the utility
block. The immersion heater of mono energy
systems is always blocked.
Utility 2: The 2nd heat generator is enabled
during the utility block.
Utility 3: The 2nd heat generator is enabled
during the utility block if the utility 3 limit
temperature is also undershot.
Limit temperature for enabling the 2nd heat
generator when setting utility 3.
The special program should be used for old
boilers or bivalent systems with main cylinders
to help prevent corrosion caused by
condensation. The 2nd heat generator remains
in operation for a minimum of 30 hours after
enabling.
Temperature difference between cylinder
(renewable) and flow temperature that must be
overshot if the heat pump is to be blocked when
a heating request is pending.
With "Comfort" setting:
A renewable heating block is only active when
the temperature in the renewable cylinder is
higher than the current return flow setpoint
temperature hysteresis.
Temperature difference between cylinder
(renewable) and domestic hot water
temperature that must be overshot if the heat
pump is to be blocked when a DHW request is
pending.
Parallel buffer tank temperature (renewable)
that must be overshot if the heat pump is to be
blocked when a swimming pool water request
is pending.
Settings for heating circuit 1
The following heating regulation options are
available for heating circuit 1:
* Return flow temperature regulation based on
the external temperature and the set heating
curve
* Return flow temperature regulation via a fixed
setpoint (horizontal heating characteristic
curve)
* Return flow temperature regulation based on
the room temperature in a reference room
Setting range
Display
1 min
Bivalent
... 4 min ...
6 min
0.5K
Bivalent
...
2K
Utility1
Bivalent
Utility2
Utility3
-10 °C
Bivalent
... 0 °C ...
Utility3
+10 °C
No
Bivalent
Yes
2K
Bivalent-renewable
... 10K ...
20K
Comfort
Energy opt.
2K
Bivalent-renewable
... 5K...
Hot water
10K
Sensor
10 °C
Bivalent-renewable
... 35 °C ...
Swimming pool
50 °C
Heating circuit 1
External
Heating circuit 1
temperature
Room temperature:
Fixed setpoint
Not bivalent-
Room temperature
renewable
Not heating circuit 3
or
silent cooling
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