CPC F24F 11/0001 (2013.01) [F24F 11/35 (2018.01); F24F 11/72 (2018.01); F24F 11/77 (2018.01); E05Y 2900/132 (2013.01); F24F 2011/0004 (2013.01); F24F 2110/40 (2018.01); F24F 2221/50 (2013.01); F24F 2221/56 (2013.01)] | 20 Claims |
1. A method comprising:
receiving a trigger command for controlling a ventilation system;
determining that the trigger command relates to opening an entrance door, wherein the entrance door is swingable about an axis;
determining a swinging direction of the entrance door for opening the entrance door;
determining, based on the swinging direction, a polarity for an opening differential air pressure between opposite sides of the entrance door for opening or for easing an opening of the entrance door; and
inducing the opening differential air pressure between the opposite sides of the entrance door in response to the trigger command.
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