Installation of (14) HVAC units, (14) curb adapters and removal of (14) existing units, disconnection and re-connection of the existing gas piping, condensate piping and controls. New pressure gauges and disconnects were also installed. Due to site restrictions, a helicopter was required to install the HVAC units. A total of (42) picks were completed in under 4 hours while having to relocate inmates to accomplish the helicopter pick safely. All units were prepared prior to helicopter lift to ensure down time of existing units were minimal.