The finalized system selection shall be a decentralized HVAC system with decentralized HVAC air systems and terminal units with central plant heating and central plant air conditioning.

A new central air system will replace the existing unit to provide improved HVAC to the renovation space being converted to a study hall on the college campus building.

The new insulated hot water system shall replace the existing pipe distribution and shall include an in-line circulator and standby circulator, normally open ATC control valves to the radiant heat food warmers, DOAS heating, and existing dishwasher heating/booster coil.

An unexpected heating system failure on the south side of a K-8, one-story series of classrooms resulted in no hot water heating to the perimeter.

The HVAC system selection and design intent is based on the processed outlined in ASHRAE Handbook 2020, Chapter 1, “HVAC System Analysis and Selection.”

As a result of the COVID-19 pandemic, a major convention center located in the southern part of the U.S. has put together an IPD team to update the policy and procedure (P&P) manual with “lessons-learned” over the past 18 months.

A finalized system selection shall consider a central plant heating versus decentralized heating plants, and all specialized systems shall include general exhaust, boiler flue exhaust, and boiler plant ventilation.

The system includes a 2,000-ton open cooling tower with six condenser water pumps and four 500-ton centrifugal electric chillers with two condenser water pumps for process chilled water cooling.

The existing central air system with eight terminal reheat coils shall provide space temperature and humidity control to maintain 40%-60% relative humidity within each room while maintaining 68°F in the heating season, 74° in the cooling season, and space pressure maintained at 0.05-inch gage positive pressure.