A government agency selected PHS to work on several projects because of our reputation for excellence in critical controls and data centers. We were recommended because of our success in executing retrofit projects without interruption of plant operations. The customer’s existing systems offered poor controls and limited support, and their chiller plant failed on a consistent basis. PHS provided design/build services to develop a stable and effective control system. Necessary instrumentation was added and existing controls, instruments and valves were all upgraded. PHS was able to bring consistency and reliability to this customer’s process controls!






360,000 sq. ft. Data Center



  • Construction of a new 3.2MW Data Center
  • 4- Secondary CW Pumps
  • 2- Heat exchangers
  • 32 – WWCU Units
  • UPS Room, and Battery Rooms
  • Generator Room


  • Dynamic WWCU Airflow Distribution
  • 32 WWCU Units w/ Redundant A/B CWS and Imbedded DeltaV Controls
  • Fault Tolerant Design Throughout
  • Redundant WWCU Chilled Water Heat Exchangers and Pumping Systems
  • Redundant PDU KW Monitoring
  • Redundant A/B Chilled Water source w/ Automated Transitions
  • 4 – Secondary Pumps VFD
  • 2 – Heat Exchangers
  • UPS Room, and Battery Room monitoring and control
  • Generator Room w/ 3- New generators