OHIOHEALTH – GRADY MEMORIAL HOSPITAL AIR HANDLING UNITS 12 & 13 REPLACEMENT

The project consisted of the replacement of existing Air Handling Units 12 & 13 at Grady Memorial Hospital.  The existing units are in the basement mechanical room. Thanks to increasing equipment in the areas served, both replacement units have 20% more capacity than the original units. AHU-12 is an approximately 15,500 CFM constant volume unit and AHU-13 is a 20,000 CFM variable volume unit. The ductwork in the mechanical room needed to be revised to accommodate the unit replacement and downtime minimized to avoid facility disruption.

• The existing air-handling units supply the maintenance, nursery, corridor, and interior core areas of the hospital
• Replace starter buckets in the motor control center with circuit breakers to feed the remote VFD’s.
• New AHU’s utilized fan array with one redundant fan and has multiple VFD’s
• Replace ducted return fans with return fans that utilized VFD’s
• Provided new DDC to controllers
• Replaced AHU’s over a weekend and had it up and operating on Monday
• Provided UV lighting at cooling coil

MEP Design for AHU Replacement and ductwork.