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Readings
ON
To read temperatures near the unit, external tempera-
ture sensors PT-1000 must be connected to DRV control
module.
Antifreeze
Antifreeze protection of the heat exchanger. When tem-
perature in the room drops below desired temperature
fans stops and valve is open to 100%. The unit must be
equipped with T3 sensor (optional equipment).
Slim
Antifreeze
Slim
Readings
ON/OFF valve
Temperature in
the room
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