Such an operation pattern results in
tremendous energy waste from those areas that are not occupied.
Although many HVAC Control consoles provide
ON-OFF switch for user to shut off the ventilation if it is not
needed, this still requires manual operation that people tends
Therefore, we decided to develop an occupancy
sensor for today´s HVAC systems, so their operation can be more
Unlike conventional PIR sensors for security or light control
(AP has a wide range of this product) which require immediate
response to the human presence, the HVAC occupancy sensor must be
smart enough to distinguish the nature of occupancy before
activating the ventilation.
To those short-time occupancies, non-purpose
visits and inevitable passages, the local HVAC device should not be
activated by these activities in order to save energy and prolong
the life span of ventilator.
By utilizing a high sensitivity passive
infrared (PIR) motion sensor and a unique delay processor, our HVAC
Occupancy Sensor is smart enough to verify true occupancy, thus
avoid deactivating the local HVAC operation.
Every AP:s HVAC Occupancy Sensor features an
adjustable delay control, for deactivation of control signal.
This so-called ¨OFF¨ delay, this is the time
that automatically shuts off the HVAC ventilation after the area is
Change-over relay signal output an 12-24Vac/dc
power supply are available for universal HVAC system control.