S02 Attachment 09_1-AHU-60 Ventilation Calc_1 Page.pdf

This is a HVAC Outside Air Calculations document prepared by Above Group for a VA medical facility renovation project. The document details HVAC design specifications for the Interventional Radiology Catheterization Lab renovation at the VA Medical Center in West Palm Beach, currently in the 100% Construction Documents phase (VA Project Number 548-CSI-139, Above Group Project Number 0124003).

The document presents outside air and supply air requirements for five spaces served by Air Handling Unit 1-AHU-60: the Semi-Restricted Area (Room 2B-235) requiring 160 CFM outside air and 200 CFM design supply; the Hybrid Operating Room (Room 2B-237, listed twice) requiring 1,795 CFM outside air and 2,800 CFM design supply; the Transition Area (Room 2B-236) requiring 170 CFM outside air and 225 CFM design supply; and the Hybrid OR Control Room (Room 2B-238) requiring 295 CFM outside air and 375 CFM design supply. Each space designation includes room type classifications per the VA HVAC Design Manual, occupancy parameters, ceiling heights ranging from 9 to 9.5 feet, and minimum outside air changes per hour (ACH) ranging from 2 to 4 based on room function and occupancy. Total minimum outside CFM requirements for the AHU-60 system total 4,215 CFM across all spaces.