2008 City of Richmond

Watermania wave pool is located at 14300 Entertainment Blvd. in Richmond. the building was constructed in 1997 and is 74,043 sq.ft. in area.

The baseline: The building's HVAC system consisted of two chilled water cooling/hot water heating custom made (100 tons, 41000 CFM each) scott springfield units AHU-1 & AHU-2 located on lower roof on east and west side of the building. The air was supplied to and returned from the pool via main round ducts (suspended from the ceiling) and commercial type grilles on each side of the pool. Chilled water serving the chilled water coils was generated and circulated by two pumps CP-1 & CP-2 using an indoor 200 tons MQQUAY chiller located in main mechanical room by the pool and BAC cooling tower located
outside. Two RBI gas boilers B-1 & B-2, 4000 MBH each provided heating water to heating coils inside the AHU-1 and AHU-2. In addition to these units , there were also nine roof top electric cooling and gas heating Carrier packaged units RTU-1 through RTU-9 spread out on east and west side of the building on lower roof. There were a number of roof mounted type exhaust fans serving rest rooms, mechanical rooms and pool equipment rooms. One roof mounted exhaust fan worked in combination with make-up air unit MAU-1 serving the locker rooms.

Energy-saving project: This project included boiler upgrades, dehumidification system component replacement, and enhanced digital building controls. The existing mid-efficiency boilers were upgraded to advanced high-efficiency boilers. In addition to enhancing the heating capacity in order to satisfy periods of increased demand, the boiler upgrade also designed to reduce annual energy consumption by 2500 GJ. The existing twin screw chiller was replaced with a centrifugal chiller capable of performing heat recovery. The new chiller performs mechanical refrigeration to condense and dehumidify the pool natatorium air. In the process, waste heat is recovered by the dehumidification system and recycled for supply air and pool water heating. By minimizing reliance on outdoor makeup air and recovering waste heat, the chiller was improved overall air quality and designed to reduce energy loss by 4800 GJ. In addition, the digital automated building controls were upgraded to integrate all system components and to ensure that energy savings are achieved. The system enhancement includes software upgrade, installation of new Ethernet system, site controllers and process control units.