The existing equipment to remain as part of the condenser water system includes the plate and frame heat exchangers and split-case pumps with standby pumps, each with variable frequency drives (VFDs).
The design criteria is based on an analytical analysis of existing refrigeration conditions, associated operation, and proactive maintenance management in sync with the hospital’s overall updating the policy and procedure manual as it pertains to refrigerant management and the environment.
The existing central plants shall provide heating in the winter to maintain 68°F and 76° in the air conditioning season via a single duct, single zone, providing ventilation air and maintaining a positive building pressure of 0.05 inch gage.
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.
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.