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MRI Chiller

MRI Chillers

 


Mri Chiller Solutions


If you are upgrading, replacing or planning a new GE or Siemens MRI scan system, Legacy Chillers has MRI chiller cooling solutions available for GE and Siemens. Our pre-engineered MRI chiller solutions are designed for the most demanding scanning environments. If you are also in need of engineering, or installation services, Legacy has the skills and resources to help ensure a successful turnkey project in all major U.S. markets.

A typical MRI resembles a large donut in many ways. There is a small hole in the center of the MRI where the patient slips into. The outer ring of the MRI is a large super conducting magnet. Our bodies consist of millions and millions of cells, and these cells have different densities and makeup. As a body enters the MRI's magnetic field, each cell reacts differently to this magnetic field. Using advanced software and super computers, the MRI's can now distinguish these cells from one another on a molecular level and map your specific organs into digital images. Once the image is captured the MRI now has the capability to rotate and slice a section of the image in a variety of ways.

Key to the efficiency and ability of any MRI is the huge superconducting magnet within the MRI's outer ring. To reach maximum performance these magnets must be cooled down to -200 to -600c. To accomplish this, liquid helium is commonly used as a refrigerant. In order to maintain the liquid helium cooling system, a water-cooled gradient compressor needs to be used, and this is where Legacy Chiller Systems comes in. Our chiller systems are designed to provide top-rate efficiency, with you the customer in mind.

Advanced fluid cooling solutions for Mission Critical Process Applications

Legacy Chiller Systems’ professional engineers have worked with original equipment manufacturing OEM companies such as Siemens, General Electric, Toshiba Medical Systems, Hitachi and many others to design custom chiller systems for mission critical applications. We have been very successful in this endeavor and have pre-selected chiller models for a wide variety of MRI, CT, Laser and other medical applications.

Legacy Chiller Systems has recently made a major design update to our PAC, PACT, ES, EST lines to provide reliable chiller system operation up to 120F ambient or down to -30F ambient. These new applications are ideal for year round air-cooled chiller systems for regions with extraordinarily high and low temperatures.

Chiller System Solutions Table of Contents

Legacy Chiller Systems has a large selection of chillers to meet your needs. We offer many features and options for both the air-cooled and water-cooled chiller systems.

  • The Air-Cooled PACT with integrated tank – Available in sizes from 1 to 15 tons, separate stainless steel system and process pumps, integrated tank section, 316 stainless evaporator, Copeland Scroll compressor (s), dozens of standard features and many available options.
  • The Air-Cooled PAC – Available in sizes from 1 to 50 tons, low profile – ideal for roof mount installation, lightweight, 316 stainless evaporator, Copeland Scroll compressor (s), dozens of standard features and many available options.
  • The Air-Cooled PAC-Semi – Available in sizes from 1 to 90 tons, low profile – ideal for roof mount installation, Copeland Semi-hermetic compressor (s), dozens of standard features and many available options.
  • The Water-Cooled PWC - Available in sizes from 1 to 20 tons, compact cabinet, light weight, 316 stainless evaporator, Copeland Scroll compressor (s), dozens of standard features and many available options.
  • The Water-Cooled PWCT with integrated tank - Available in sizes from 1 to 20 tons, separate stainless steel system and process pumps, integrated tank section, 316 stainless evaporator, Copeland Scroll compressor (s), dozens of standard features and many available options.
  • Auxiliary Tank Sections – Available in sizes form 135 to 600 gallons, stainless or polypro, completely enclosed, digital supply and return water temperature gauges, stainless steel factory mounted system pump.
  • Split condenser chiller models are also available!

The Air-Cooled Split ES - 1-20 tons (same as PAC) with a split condenser
The Air-Cooled Split EST - 1-20 tons (same as PACT) with a split condenser

Standard Features (All Models)

  • Remote condenser section
  • Microprocessor controller
  • STAINLESS STEEL brazed plate evaporator with ˝” insulation, and secured in a steel bracket
  • Scroll compressor with crankcase heater
  • Suction accumulator
  • Water flow switch
  • Hot gas by-pass capacity control
  • 24V control transformer
  • Direct drive condenser fan motor
  • Rust resistant, high CFM, aluminum
  • Condenser fan blade
  • Condenser (s): copper tube / aluminum fin
  • Compressor motor contactor
  • Condenser motor and control circuit fusing
  • “Hard start kit” (single phase units only)
  • Painted galvanized sheet metal cabinet
  • ˝” insulation on all water and refrigerant lines
  • Liquid line drier, sight glass, solenoid, TEV
  • Full refrigerant charge from factory

Additional Features on Tank Models Only

  • STAINLESS STEEL storage tank with ˝” insulation
  • Fused STAINLESS STEEL re-circulation pump for tank operation with ball valve and cleanable strainer
  • Tank pressure relief valve, vent and drain connections

AVAILABLE OPTIONS (All Models)

  • 4 year extended compressor warranty
  • Casters (factory mounted)
  • 115 volt (rain tight) service outlet
  • Fused disconnect
  • Phase monitor
  • Compressor fusing
  • Fan cycle control on Pac90 & 120 units only (+40 F)
  • Variable fan speed control (+20 F)
  • Flooded condenser with receiver / head pressure control (-20 F)
  • Heated flooded condenser with receiver / head pressure control (-20 F)
  • Factory installed evaporator heat tape freeze protection thermostatically controlled
  • Fused STAINLESS STEEL system process pump
  • Dual system pump with manual changeover
  • Dual system pump with auto changeover
  • Low flow bypass valve
  • “Gold” finned condenser coil (coastal protection)
  • Semi-hermetic compressor
  • Shell and tube chiller barrel
  • Water flow meter
  • Auto city water make up solenoid
  • Auto city water changeover panel
  • Auto city water changeover panel with 5 micron filter
  • Special piping for de-ionized and reverse osmosis water systems
  • Blower type condenser fan (forward curve) 12S to 60S

Additional Available Options on Tank Models Only

  • Storage tank sight glass
  • Tank low liquid level indicator with dry contacts

To learn more about Mri Chillers please visit www.mri-chillers.com


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