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Concord Consulting Engineering

Case study · 2020–2021

Outpatient MRI suite replacement, Linden, NJ

Concord designed the HVAC and MRI support systems for the replacement of an outpatient MRI suite in Linden, New Jersey.

The challenge

Work in an MRI suite has to keep the RF shield intact and keep magnetic materials out of the magnet room. The magnet also needs a quench vent to the outdoors.

What Concord did

  • In-place replacement of the MRI chiller, on a 40% propylene-glycol loop with CPVC Schedule 80 piping to the MRI.
  • Non-magnetic materials specified inside the magnet room.
  • Every penetration of the RF shield made through waveguides with dielectric couplers.
  • The magnet's quench vent tied into the existing cryogen vent, terminating at least 15 ft above grade.
  • An oxygen monitor at the cryogen fill point.
  • HVAC specified to run for 48 hours before magnet delivery.
  • The transformer-room exhaust fan relocated to the exterior wall, documented in a letter to the local construction official in May 2021.

Outcome

  • Drawings issued for NJ DCA plan review in December 2020.
  • Mechanical sheet issued as a “Partial Release – Mechanical” in April 2021.

Project facts

Location
Linden, Union County, NJ
Years
2020–2021
Sector
Medical imaging (outpatient)
Trades
HVAC and MRI support systems

From Concord's site visits

Metal and white PVC conduit runs on a stucco exterior wall above a condensing unit, Linden, New Jersey
Exterior conduit runs and a condensing unit outside the imaging suite. Photo: Concord Consulting Engineering, September 2020.
Packaged unit on a pad below vertical conduits and two white pipes on a stucco wall, Linden, New Jersey
Exterior wall with conduits and a packaged unit. Photo: Concord Consulting Engineering, September 2020.

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