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5. Commissioning
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n Minimum collector temperature - CMIN
The minimum collector temperature function CMIN prevents the solar
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pump from starting up too frequently in the event of low temperatures
in the solar collector. The minimum collector temperature CMIN must
be exceeded in order for the solar heating pump to be able to start
up.
M002765-A
n Collector antifreeze option - OAC
CAUTION
The antifreeze function should only be used if non-glycol
water is used as the heat transporting fluid.
The function takes heat from the DHW calorifer; we
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therefore recommend using it only in regions where the
temperature rarely falls below 0°C.
When the collector temperature is lower than the TAON temperature,
the antifreeze function activates the solar pump in order to make the
heat-transporting fluid circulate between the collector and the DHW
M002766-A
calorifer to prevent it freezing. When the collector temperature
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exceeds the TAOF temperature, the antifreeze function stops the
solar pump.
CAUTION
The collector antifreeze function only runs if the DHW tank
temperature is higher than the collector temperature. The
M002800-A
collector antifreeze function is deactivated if the DHW tank
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temperature is lower than 5°C.
M002801-A
n Tubular collector option - FT
The tubular collector function is used to take into account the position
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of the temperature sensor in the tubular collectors. If the regulator
detects a temperature rise in the collector of 2 K compared to the last
measurement, the solar pump runs at full speed for 30 seconds to
measure the current average temperature. The measured
temperature thus becomes the new reference temperature. If the
measured temperature (new reference) then increases again by 2
M000399-C
K, the solar pump starts again for 30 seconds. The regulator switches
automatically to solar heating mode if the temperature difference
between the collector and the calorifer exceeds the switching-on
temperature difference when the solar pump is operating or the
system is stopped. If the collector temperature falls by 2 K while the
system is stopped, the tubular solar collector activation temperature
is rechecked.
200SE-2S - 300SE-2S
26/04/2016 - 7607575-05
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