Crane is prepared to hoist AHU to hospital rooftop

AHU is rigged to a waiting PJM crew

AHU is hoisted to hospital rooftop

Mobile crane is readied to hoist AHU to rooftop

Aerial view of AHU being rigged to waiting PJM crew

Aerial view of AHU being rigged to waiting PJM crew

Aerial view of AHU being rigged to waiting PJM crew

Wrapped chiller on concrete foundation

Completed restroom renovation

PJM crew members guide top half of cooling tower into place

Underground chilled and hot water are tied into building

Package rooftop AHU is craned onto curb

Two high-efficiency cooing tower cells

Confined-space welding of batch tank agitator mix blade

Chiller suspended from crane is guided into place

Chillers with associated piping in mechanical room

Pouring foundation for new central utility plant

Fan coil with associated piping in ceiling

High-efficiency boiler plant with circulation pumps

Completed central utility plant

Welding in progress for new carbon header

New Trane chiller lowered through roof

Cooling towers and chiller installed prior to enclosure

Dual-cell Evapco cooling towers

Fan array section is hoisted to roof of lab building

Hot water circulation pumps with vibration isolators and triple-duty valves

Energy recovery wheel from AHU disassembled to fit through small doorway

Installed cooling tower, piping and controls

Multiple hot water boilers replace a single steam boiler

Multi-split ceiling cassette