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Example of the temperature sensor feedback delay:
Initial Conditions:
Rated rotation speed is 60 % of the maximum speed.
Set temperature point is +25 °C.
Air duct temperature is +20 °C.
Fan impeller rotation speed is 60 %.
Air duct temperature increases.
Fan impeller rotation speed is 60 %.
Air duct temperature r27 °C.
Fan switches to impeller rotation speed 100 %.
Air duct temperature starts falling.
Fan impeller rotation speed is 100 %.
Air duct temperature r25 °C.
Fan switches to the pre-set lower speed 60 %.
Example of the timer feedback delay:
Initial Conditions:
Rated rotation speed is 60 % of the maximum speed.
Operation threshold is 25 °C.
Air duct temperature is +20 °C.
Fan impeller rotation speed is 60 %.
Air duct temperature increases, r25°C and continues to grow.
Fan switches to impeller rotation speed 100 %. The delay timer is activated for 5 minutes.
Air duct temperature starts falling down.
Fan operates with impeller rotation speed is 100 %.
Air duct temperature r25 °C and continues to drop.
After the timer countdown is over, the fan switches to the pre-set lower speed (=60%). After the speed
switches to 60% the timer starts 5 minutes countdown again.
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