Pressure Dependent type VAV: Model PAC-PDVAV-2L / 2M

2L – For Low-pressure applications; 2M – For Medium pressure applications.
PACVENT pressure-dependent type VAV is a single duct pressure-dependent air terminal unit, designed to use with constant volume for low and medium pressure air handling systems . Pressure-dependent control represents the basic control of a VAV terminal unit. Pressure-dependent controls require field calibration of air flows according to job system conditions. The terminal unit damper is positioned from a signal sent directly from the zone thermostat to the damper actuator without regard for system conditions. The resulting flow at any given moment through the unit is very dependent upon the system conditions at that moment. In a pressure-dependent system, two zones on the same system are affected by the control of one another.