POSTAL SERVICE NETWORK DISTRIBUTION CENTER HVAC UPGRADES


UNITED STATES POSTAL SERVICE pittsburgh network distribution center (NDC) hvac upgrades

WARRENDALE, PENNSLYVANIA

PROJECT DESCRIPTION
  • LLI Engineering Inc provided design and construction administration services to replace the entire HVAC system and improve energy efficiency of a 498,000 square foot facility.
  • The scope of work included the following:

  • Replaced three aging 400 ton chillers with new magnetic bearing centrifugal chillers and converted the chilled water system to a variable primary pumping system.
  • Replaced 15 constant volume air handling units, serving the workroom, with new single zone VAV units with a "Demand Controlled Ventilation (DCR)" sequence.
  • Replaced three constant volume air handling units and a duct system with electric reheat coils with two new VAV air handling units, VAV boxes and a "Demand Controlled Ventilation (DCR)" sequence.
  • Provided a new Direct Digital Control (DPC) system to control and integrate all new HVAC equipment and systems.
  • Provided phasing plans to coordinate the construction process with a facility that operates 24/7.

PROJECT STATISTICS

GROSS PROJECT AREA: 1,000,000 SQUARE FEET

CONSTRUCTION COST: $8,000,000

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