Settings
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>>> Block heating
>> Room temperature
B Set the room temperature that should apply in the event of enabled
external control.
B 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
B 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
B Set the room temperature that should apply in the event of enabled
external control.
B 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.
16.7 Installer
This section includes:
• General
• Heat pump x capacity
• Connected I/O boards
• Compressor working area
• Generated energy
• Operating times and consumptions
• Temperatures
• Programmable outputs
• Inputs
• Outputs
• Circulation pumps
> General
>> Anti-seizure mode
>>> Day of the week
>>> Start time
B Set date and time for anti-seizure operation of vital parts of the
installation.
Anti-seizure mode ensures that vital components do not become
clogged during periods when they are not used.
Anti-seizure mode operates differently in summer and in winter. This
enables the duration of the anti-seizure operation to be reduced.
Furthermore, during anti-seizure operation the entire system does not
need to be switched off in winter.
Anti-seizure mode in summer mode
Factory setting No
Alternative No/Yes
Table 106 Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Table 107 Room temperature
Factory setting No
Alternative No/Yes
Table 108 Blocking
Factory setting No
Alternative No/Yes
Table 109 Start collector circuit pump
Factory setting No
Alternative No/Yes
Table 110 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 (Æ Chapter 17.7 ).
Factory setting No
Alternative No/Yes
Table 111 Invert input
Factory setting No
Alternative No/Yes
Table 112 Blocking
Factory setting No
Alternative No/Yes
Table 113 Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Table 114 Room temperature
Factory setting Wednesday
Alternative Monday-Sunday
Table 115 Anti-seizure day
Factory setting 12:00
Alternative 0:00 - 23:00
Table 116 Anti-seizure start time
Anti-seizure mode starts only if there is no other type of
demand. When there is a demand, the anti-seizure
operation waits for one hour at the most for the demand
to be satisfied. Otherwise, the anti-seizure operation has
to wait until the next occasion.
Heat pump 1 runs first followed by heat pump 2, etc. 3-
way valves and circulation pumps are run for 1 minute
and mixing valves for the respective mixing valve's run
time + 10s. A pause of 30s is made between
components.
During anti-seizure mode, certain parts of the heating
system become hot for a short period of time, which is
completely normal.
The anti-seizure mode is not cancelled if hot water
demand arises during the anti-seizure operation. The hot
water temperature can thereby fall. A suitable time for
anti-seizure operation is when the hot water
consumption is low, e.g., at night.