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High Temperature Hot Water Piping Modifications

Job Highlights:

  • Replacement of motor starters with VFD’s for new boiler fan motors.
  • Removal of existing and installation of 6 new high efficiency inverter duty electric motors ranging from 75‐200 HP.
  • Existing motor base modifications for proper alignment of new motors.
  • Modifications to the boiler controls to control the VFD’s.



Upgrades - Building18

J.F. White’s Mechanical Division was awarded the contract to perform upgrades at Mass. Port Authority’s central heating plant at Logan International Airport. The scope of work included the replacement of the 6 boiler fan motors, installation of 6 VFD’s for the new motors, modifications and additional controls to incorporate the VFD’s, two air compressors and two refrigerated air dryers. One of the challenges J.F. White faced was the rigging of the motors and VFD’s to the elevated platforms within the active boiler room. This activity was achieved by welding supplemental steel beams at strategic locations throughout the boiler room that served as picking points for rigging and guiding of the equipment through its planned route to its installation location. J.F. White was given a short period of time from when one of the three boilers was taken out of service to when it had to be back in service. All electrical connections, motor alignments, control integration and testings, and two VFD check outs had to be completed before moving on to the next boiler.

The project was supported by J.F. White’s Electrical Division.

Contract value: $867,064