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Channel + preHeat: Additionally a pre-heating mode is activated for all heating circuits of the ice
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detection channels.
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Off: All ice detection channels are switched off.
An additional holiday program, which affects all week programs, allows you to override the set week
programs for a period of time, e.g. company holi-days.The time underlying the week programs must be
set manually (summer/winter time changeover is auto-matic), provided the system is not connected to
the internet via the Internet Gateway.
PRE-HEATING FUNCTION IN WEEK PROGRAM
Pre-heating is activated via the week program of the zone by setting the "Channel + preHeat" control
mode. If the system is run in the „Multi Channel" applica-tion also option "Time control" of the respective
zone has to be activated. In the "System" application the time control is always active.
The pre-heating mode, like the base temperature mode, allows heating of an open area even before
moisture is detected. In contrast to the base temperature mode, however, the pre-heating mode opera-
tes with PWM performance control based on the measured or predicted outdoor temperature.
The pre-heating mode is a zone function that affects all assigned ice detection channels of the zone.
If both pre-heating and base temperature mode are set for a channel, the pre-heating mode is automati-
cally inactive.
The pre-heating mode operates within the parameter limits "start temperature" and "end temperature",
which represent the upper and lower temperature limits. Both values are pre-defined with useful values,
but can be adapted to local conditions if required.
The PWM performance at the start temperature is defined via the "start value". The performance at the
end temperature is always 100%. The heating capacity is adjusted linearly between the start and end
temperature.
The lower temperature limit is used to deactivate the base temperature mode in case of very low tem-
peratures. At very low temperatures, the surface might not be completely heated so that the thawed ice
could freeze again, increasing the risk of slipperiness.
If both pre-heating and base temperature mode are set for a channel, the pre-heating mode is automati-
cally inactive.
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WARRANTY
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