E-12
English
6.1
A variably-regulated (gliding) 2nd heat
generator has its own external temperature-
guided regulation and can be flowed through
with the full volume as required.
A constantly-regulated 2nd heat generator is
set to a constant temperature. The mixer
regulation is active.
Variable (sliding)
Constant
Bivalent
The runtime between the OPEN and CLOSED
end positions varies according to the mixer
used. The mixer runtime should be adjusted to
ensure optimal temperature regulation.
1 min
... 4 min ...
6 min
Bivalent
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.
0.5 K
...
2 K
Bivalent
This setting determines the response of the 2nd
heat generator during a utility block
(interruption of the supply voltage).
Utility (EVU) 1: The 2nd heat generator is only
enabled in the B3 bivalence level during the
utility block. The immersion heater of mono
energy systems is always blocked.
Utility (EVU) 2: The 2nd heat generator is
enabled during the utility block.
Utility (EVU) 3: The 2nd heat generator is
enabled during the utility block if the Limit
temperature Utility 3 is also undershot.
Utility1
Utility2
Utility3
Bivalent
Limit temperature for enabling the 2nd heat
generator when setting Utility (EVU) 3.
-10 °C
... 0 °C ...
+10 °C
Bivalent
Utility (EVU) 3
The special program should be used for old
boilers or bivalent systems with main cylinders.
It will help to prevent corrosion caused by
condensation. The 2nd heat generator remains
in operation for a minimum of 30 hours after
enabling.
No
Yes
Bivalent
Temperature difference between cylinder
(regenerative) and flow temperature that must
be overshot if the HP is to be blocked when a
heating request is pending
2 °C
...
10 °C
Bivalent-
regenerative
Parallel buffer tank temperature (regenerative)
that must be overshot if the HP is to be blocked
when a request for swimming pool water is
pending
10 °C
... 35 °C ...
50 °C
Bivalent-
regenerative
Swimming pool
Settings for heating circuit 1 Heating circuit 1
The following heating regulation options are
available for heating circuit 1:
* Return temperature regulation based on the
external temperature and the set heating curve
* Return temperature regulation via a fixed-
setpoint (horizontal heating characteristic
curve)
* Return temperature regulation based on the
room temperature in a reference room
External
temperature
Fixed-setpoint
Room temperature
Heating circuit 1
Room temperature:
Not bivalent-
regenerat.
Not heating circuit 3
or
silent cooling
System-specific parameters
Setting range Display
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