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20.6 EXTERNAL CONTROL
When an external input is connected, the control unit performs functions
which are set to Yes or is separated from 0 (Room temperature). When
the external input is no longer connected, the control unit returns to
normal mode. Only installed functions are displayed.
This is where the functions for the external inputs 1 and 2 per heat pump
and the external inputs for circuits 2, 3, etc. are located.
> Heat pump x
>> External input 1, 2
>>> Invert input
Factory setting
Alternative
Table 100 Invert input
▶ Select Yes if the input signal is to be reversed (i.e. activated with open
contact).
>>> Block additional heat 100% at trigged power guard
Function not used.
>>> Max output additional heat at trigged power guard
Function not used.
>>> Block compressor x
Factory setting
Alternative
Table 101 Blocking
>>> Block additional heat
Factory setting
Alternative
Table 102 Blocking
>>> Block heating at tripped underfloor temperature limiter
Factory setting
Alternative
Table 103 Blocking
>>> Block heating
Factory setting
Alternative
Table 104 Blocking
>> Room temperature
Factory setting
Lowest value
Highest value
Table 105 Room temperature
▶ Set the room temperature that should apply in the event of enabled
external control.
▶ Value > 0 °C enables the function.
>>> Block hot water production
Factory setting
Alternative
Table 106 Blocking
6 720 806 768 (2013/02)
>>> Start collector circuit pump
Table 107 Start collector circuit pump
>>> Alarm at low pressure in collector circuit
Table 108 Alarm at low pressure in collector circuit
No
No/Yes
>> External input circuit 2, 3...
>>> Invert input
Table 109 Invert input
No
▶ Select Yes if the input signal is to be reversed (i.e. activated with open
No/Yes
>>> Block heating at tripped underfloor temperature limiter
(Circuit 2)
No
No/Yes
Table 110 Blocking
>>> Block heating
No
No/Yes
Table 111 Blocking
>>> Room temperature
No
No/Yes
Table 112 Room temperature
▶ Set the room temperature that should apply in the event of enabled
No (0.0 °C)
▶ Value > 0 °C enables the function.
10.0 °C
The highest temperature is used if temperature changes have been set
35.0 °C
for a certain circuit at several external inputs.
No
No/Yes
Factory setting
Alternative
Factory setting
Alternative
This function requires the installation of a pressure
switch in the collector circuit and its connection to the
external input. In the event of incorrect pressure in the
circuit, the external input closes, triggering a category A
alarm ( Chapter 21.8).
Factory setting
Alternative
contact).
Factory setting
Alternative
Factory setting
Alternative
Factory setting
Lowest value
Highest value
external control.
SETTINGS
No
No/Yes
No
No/Yes
No
No/Yes
No
No/Yes
No
No/Yes
No (0.0 °C)
10.0 °C
35.0 °C
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