Instruction manual

SETTINGS
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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
▶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
>>> Block additional heat
>>> Block heating at tripped underfloor temperature limiter
>>> Block heating
>> 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
>>> Start collector circuit pump
>>> Alarm at low pressure in collector circuit
>> External input circuit 2, 3...
>>> Invert input
▶Select Yes if the input signal is to be reversed (i.e. activated with open
contact).
>>> Block heating at tripped underfloor temperature limiter
(Circuit 2)
>>> Block heating
>>> Room temperature
▶ Set the room temperature that should apply in the event of enabled
external control.
▶ Value > 0 °C enables the function.
The highest temperature is used if temperature changes have been set
for a certain circuit at several external inputs.
Factory setting No
Alternative No/Yes
Table 100 Invert input
Factory setting No
Alternative No/Yes
Table 101 Blocking
Factory setting No
Alternative No/Yes
Table 102 Blocking
Factory setting No
Alternative No/Yes
Table 103 Blocking
Factory setting No
Alternative No/Yes
Table 104 Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Table 105 Room temperature
Factory setting No
Alternative No/Yes
Table 106 Blocking
Factory setting No
Alternative No/Yes
Table 107 Start collector circuit pump
Factory setting No
Alternative No/Yes
Table 108 Alarm at low pressure in collector circuit
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 No
Alternative No/Yes
Table 109 Invert input
Factory setting No
Alternative No/Yes
Table 110 Blocking
Factory setting No
Alternative No/Yes
Table 111 Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Table 112 Room temperature