AES Catalog - Catalog - Page 144
Makeup Air Hood Styles
Back-Return Plenum (BRP)
• Design can be an e昀昀ec琀椀ve way to introduce Makeup Air (MUA)
• Discharge area of the back wall MUA should be at least 12"
below the cooking surface to prevent interference with gas
burners and pilot lights
• Meets “clearance to combus琀椀ble” code requirement
• Ability to pair with IPS/Short Cycle or PSP for 100% Return Air
• Allows for low-pro昀椀le front dimension for ceiling height issues
Perforated Supply Plenum (PSP)
• Directs the MUA downward into the capture area
of the hood
• MUA is introduced downward on the outside front of the hood
above where the cook stands and causes discomfort (cold in
winter and hot in summer)
• Use with Fresh Air or Condi琀椀oned Air Supply Fans, condi琀椀oned
air is required in most applica琀椀ons
• Op琀椀onal Low Pro昀椀le Hood style
PSP Hoods blow make-up air
down and onto workers
Internal Perforated Supply Hoods (IPS, a.k.a. Short Cycle)
• Internal compensa琀椀ng design directs the air into the front inside of the hood
• Slows the air by di昀昀using air across the length of the hood for easy balancing
• Does not a昀昀ect the ambient room temperature and has the following bene昀椀ts:
– Lower Up-Front Cost/Energy Bills: No purchase of costly tempered unit
– Lower Energy Bills: No costly hea琀椀ng bills to run a tempered make-up air unit
– Lower Installa琀椀on Cost: Easier installa琀椀on
• Tested and veri昀椀ed by mul琀椀ple third-party agencies to outperform other MUA
hood-styles
• Tested to the na琀椀onal standard for heat containment and grease capture
– UL test lab at the factory reduces development 琀椀me, using CFD modeling
and Schillinger imagery to see air昀氀ow
Contact your Curtze representa琀椀ve for more informa琀椀on.
144
IPS Hoods circulate make-up air (green)
internally to provide more comfortable
working conditions
