The Perforated Supply Plenum (PSP) and AC Perforated Supply Plenum (AC-PSP) both introduce make-up air near the hood and direct air downward into the capture area of the hood. The dual plenum design (AC-PSP) adds an additional plenum to allow convenient termination of the HVAC ductwork to the kitchen and provide spot cooling. Providing up to 80% of make-up air, the PSP and AC-PSP both evenly distribute air along the length of the hood through the perforates stainless steel diffuser plates.

Field Installations

The AC-PSP Plenum is a Patented Product, Patent No. 7963830.

AC-PSP Accessory Features and Benefits
  • Stainless steel construction to match the ventilation hood
  • Make-up Air Plenum provides up to 80% make-up air
  • AC Plenum provides convenient termination for AC ductwork in kitchen and insulated to prevent condensation
  • Make-up Air Plenum is located nearest to the hood and AC Plenum is away from the hood
  • Make-up air stream and AC stream do not mix until leaving the dual plenum
  • Optional LED Lights
PSP Accessory Features and Benefits
  • Stainless steel construction to match the ventilation hood
  • Make-up Air Plenum provides up to 80% make-up air
  • Evenly distributes make-up air along the length of the hood
  • Easy installation
  • Optional Insulation for Make-up Air Plenum
  • Optional LED Lights
The Evolution of Make-up Air Delivery
Optional LED Lights

The Optional LED Lights accessory for the AC-PSP allows additional lighting around the hood. Choosing this option places round, recessed LED lights in the divider between the Make-up Air and the AC Plenum. The light is a 3.5 watt, warm white 20 cluster LED.