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Magnitude® Chiller, Model WMC 100 to 400 tons | Magnitude® Chiller, Model WME 400 to 700 tons |
Proven Technology, Proven Reliability
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The Oregon Museum of Science & Industry in Portland invested in a 550-ton Magnitude magnetic bearing chiller and a Templifier heat recovery chiller as part of an HVAC system upgrade that saved an estimated $90,000 in annual energy costs and earned the museum $345,000 in incentives from their utility. Read the article on the Energy Trust of Oregon web site. | |
The “Emerging Technologies” article in the ASHRAE Journal looks at the energy savings and continuing innovations provided by magnetic bearing compressor chiller technology. Read the article> | |
![]() | Energy Savings And it's up to 40% more energy efficient than standard centrifugal chillers, saving more than $2 million over the life of the unit. |
Quiet | |
Ideal for Retrofit and Replacement |
Modbus® | |
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Our Bottom Line for Your Bottom Line
Lowest Total Cost of Ownership

Magnetic bearing centrifugal compressor eliminates the efficiency-robbing friction inherent in traditional centrifugal chillers. | Small unit footprint helps the Magnitude chiller fit in buildings where space is limited, making it ideal for retrofit projects. |
Integrated VFD optimizes part load efficiency, a key performance feature since most chillers operate at part load 99% of their life. | Unmatched unloading with the integrated VFDs since the on-board digital controls reduce compressor speed to match the load. |
| Sustainable performance - positive pressure, oil-free design eliminates the performance degradation due to non-condensables and oil contamination of the refrigerant. | Touch screen operator panel is graphically intuitive and easy to use for enhanced operator productivity. Important status and control information is available at a glance or at a touch. |
| Reduced maintenance costs due to the elimination of the oil, oil system, purge system, and shaft seals found in older technology chillers. | Low inrush current at star-up is ideal for operation with backup or emergency power systems. |
R-134a refrigerant has no ozone depletion potential and no phase-out schedule. | Quality assurance and quicker start-up are enhanced by the factory testing of every unit at job site conditions. |
Easy integration with our Open ChoicesTM feature using BACnet®, LonWorks® or Modbus® communications without an expensive gateway panel. | Seismic compliance with both IBC seismic certification standards and OSPHD pre-approval. |
| LEED® points can be earned from the Magnitude chiller's performance in two categories: EAc1, up to 19 points possible; and EAc4, 2 points. | |
Frictionless Compressor Chiller technical bulletin (03/05) - (1,466K) (Pub: 2005/03/09)
Models:WMCEfficient, quiet and oil-free: Frictionless chiller technology sets new standard (Electronic only)
Unit
Magnitude WME Chiller Trend Tool - (19,410K) (Pub: 2009/11/12)
Models:WMEThis compiler application is required to analyze trend data downloaded from Magnitude Model WME frictionless centrifugal chillers. The zip file includes everything needed to convert the binary trend files to a Microsoft Office Excel file. The zip file contains sample files, java runtime environment (if needed), the trend tool program, and usage instructions.
Unit
Article reprint, Magnetic Bearing Centrifugal Compressor Chiller Technology, from ASHRAE Journal - (112KB) (Pub: 2013/04/01)
Models:WMC,WMEArticle reprint, Emerging Technologies article on magnetic bearing compressor chillers, from the ASHRAE Journal, February 2013. Used by permission from ASHRAE.Unit
Article Reprint, Oil Contamination - a Major Contributor to Poor Chiller Performance - (281KB) (Pub: 2009/11/17)
Models:WMC,WMEArticle reprint from Air Conditioning Heating and Refrigeration News on how excess oil in a chiller's refrigerant can decrease efficiency. Used by permission of The News. Electronic only.Unit
Article reprint, The High Cost of Oil Contamination - (931KB) (Pub: 2009/11/17)
Models:WMC,WMEArticle Reprint from Air Conditioning, Heating and Refrigeration News on the high cost of refrigerant contamination due to oil, which reduces efficiency and increases energy costs. Used by permission of The News. Electronic only.Unit
Chiller Replacement Article, Contracting Business July 2009 - (1,946KB) (Pub: 2009/07/20)
Models:WMCArticle from Contracting Business magazine, July 2009 issue, on chiller replacement market. Features photo of McQuay frictionless chillers installed in Northbrook Junior High School in Northbrook, Illinois. Electronic only.
2F-4009 Flagler College - WMC Chillers Article Reprint - (437KB) (Pub: 2007/03/27)
Models:WMCThis editorial article highlights the energy savings, ultra quiet operation and low maintenance costs of the two WMC Chillers installed at Flagler College in St. Augustine, Florida. Reprinted by permission of Engineered Systems from their February 2007 issue.
Clark Retirement Community Saves $122,000 with Magnitude Chiller - (141KB) (Pub: 2012/07/10)
Models:WMCThe Clark Retirement Community saves $122,000 in annual energy savings with a system upgrade that includes a Daikin McQuay Magnitude magnetic bearing chiller. The efficiency also earned financial incentives from the local utility company. Article originally published in the Grand Rapids Business Journal.
Frictionless Chiller at University of Calgary - LEED® Platinum Building (03/08) - (1,346KB) (Pub: 2008/04/07)
Models:WMCMcQuay Frictionless Chiller's efficiency helps the University of Calgary's Child Development Centre earn LEED Platinum certification from USGBC. This case study originally appeared in Sustainable Architecture and Building magazine.
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2012 Chiller Product Line Chart, 2F-4056 - (2,015KB) (Pub: 2012/04/26)
Models:AGZ,AWS,HSC,TGZ,TSC,WCC,WDC,WGS,WGZ,WMC,WME,WSCElectronic only. Chart of current Daikin McQuay chiller products with air cooled units on one side and water cooled units on the other side.Unit
ASP 31-290 Magnitude Chiller Brochure - (5,425KB) (Pub: 2013/04/26)
Models:WMC,WMEComprehensive 8-page brochure on the Magnitude magnetic bearing chillers. Updated April 2013.Unit
ASP 31-323 D-Net Performance Services for Enhanced Service Support - (887KB) (Pub: 2012/06/29)
Models:AWS,WCC,WDC,WMC,WSCD-Net Performance Services for Daikin McQuay chillers D-Net is currently available on McQuay Centrifugal Chillers with MicroTech II unit controllers: models WMC, WDC, WCC, WSC and Pathfinder Air Cooled Screw chillers, model AWS with MicroTech III unit controllers. See also ASP-31-299 for Pathfinder Free Trial offer.Updated June 2012Unit
ASP 31-345 Magnitude Chiller Summary Sheet - (1,671KB) (Pub: 2013/04/26)
Models:WMC,WME2-page summary sheet on the Magnitude magnetic bearing chiller. Updated April 2013.Unit
Seismic Certification for Centrifugal Chillers, ASP 31-329 - (1,544KB) (Pub: 2013/06/13)
Models:AR,AZ,CAC,CAH,OAC,OAH,RAH,RAR,RCS,RDT,RFS,RPR,RPS,TSC,WCC,WDC,WMC,WME,WSC2-page brochure on IBC seismic certification and OSHPD pre-approval of Daikin McQuay Centrifugal Chillers. Also lists the IBC certification for Daikin McQuay air handlers, rooftop units and unit ventilatorsUnit
Stocked Chiller Brochure, ASP 31-331 - (440KB) (Pub: 2012/03/20)
Models:ACZ,AGS,AGZ,AWS,WMC,WME,WSC2-page brochure on Daikin McQuay stocked chillers. Also lists other Daikin McQuay stocked and quick ship equipment. Updated 2012.
Flagler College - A Positive Owning Experience Video - (10,793KB) (Pub: 2008/01/03)
Models:WMCA 3:55-minute video highlighting the efficiency, quiet operation and reliability of the Frictionless Chiller installed in Kenan Hall at Flagler College in St. Augustine, Florida. Features customer testimonial by the owner. Best viewed with Windows Media® Player version 9.0 or higher.
Florida Community College at Jacksonville - FrictionlessChiller (03/08) - (2,351KB) (Pub: 2008/04/01)
Models:WMCFlorida Community College upgrades to McQuay frictionless Model WMC chiller for energy savings and quiet learning environment
Frictionless Chiller at University of Calgary - LEED® Platinum Building (03/08) - (1,346KB) (Pub: 2008/04/07)
Models:WMCMcQuay Frictionless Chiller's efficiency helps the University of Calgary's Child Development Centre earn LEED Platinum certification from USGBC. This case study originally appeared in Sustainable Architecture and Building magazine.
HCA Skyline Medical Center - Magnitude WME Chiller - (1,681KB) (Pub: 2013/02/05)
Models:WMEThe efficiency of the Magnitude WME 700 ton magnetic bearing chiller helped HCA Healthcare earn a $30,900 rebate for their chiller plant modernization at their TriStar Skyline Madison Campus in Madison, TN.
Hotel Nikko San Francisco - Magnitude Chillers Case Study - (1,006KB) (Pub: 2011/09/01)
Models:WMCCase study on the Hotel Nikko San Francisco, a luxury hotel which upgraded their chillers to Daikin McQuay Magnitude WMC Chillers, resulting in 15% annual energy savings and more reliable cooling. Includes interviews with the project team.
McQuay Factory Service Case Study - Media Production and Broadcast Facility (07/08) - (1,682KB) (Pub: 2008/07/25)
Models:SC,WMCAscent Media in Stamford, CT, a TV production and broadcast media center, replaced 4 old chillers with 3 McQuay WMC chillers, reducing their annual electrical energy usage by 40% and earning them a $260,000 rebate from the local utility. Literature order number 13F-4034.
Naples Philharmonic Center for the Arts - (692KB) (Pub: 2013/01/14)
Models:WMCThe Philharmonic Center for the Arts in Naples, Florida, saved 14% in year-over-year energy savings after McQuay Service performed a turnkey chiller plant replacement using two Daikin McQuay Magnitude magnetic bearing chillers.
Orlando Science Center - Magnitude Chillers - (339KB) (Pub: 2012/04/11)
Models:WMCThe Orlando Science Center interactive museum selected Daikin McQuay Magnitude® magnetic bearing chillers for their cooling system as part of a green building project and chiller upgrade. Now the chillers have become a working exhibit of innovation and energy savings.
San Francisco Public Utilities Commission Headquarters Office Building - (1,302KB) (Pub: 2013/01/14)
Models:WMC,WMEThe LEED Platinum SFPUC headquarters building, which has two Daikin McQuay Magnitude chillers installed, is often called the greenest office building in the country because of its extensive sustainability features.
Sarasota Bradenton Airport Magnitude Chillers - (393KB) (Pub: 2011/08/16)
Models:WMEMagnitude Model WME chiller reduced airport terminal electrical consumption by 28%, and also reduced maintenance costs 72%. Additional savings were realized in reducing cooling tower chemicals and water consumption.
Tower Place Office Building with Magnitude Chillers - (766KB) (Pub: 2012/05/04)
Models:WMCProject highlights sheet describing the $79,000 first year electrical energy savings achieved by replacing an old, inefficient chiller with a Daikin McQuay Magnitude Model WMC magnetic bearing chiller. Tower Place is a Class A, 11-story office building in Tampa, Florida.
WMC Chiller Case Study, Northbrook Junior High School - (1,453KB) (Pub: 2009/03/20)
Models:WMCNorthbrook Junior High School in Northbrook, Illinois, reduced its energy cost per square foot by 18% and won an Energy Star® rating as a result of HVAC system renovations.
Unit
CAT 602-2 Magnitude Magnetic Bearing Chiller Catalog - (4,363KB) (Pub: 2013/05/09)
Models:WMCCatalog for the Magnitude Model WMC Chiller, 145 to 400 tons, B Vintage. Revised May 2013.Unit
CAT 604-4 Magnitude WME 500 and 700 Chiller - (4,627KB) (Pub: 2013/04/29)
Models:WMEMagnitude WME 500 to 700 ton magnetic bearing chiller catalog. Updated April 2013.
Control
ED 15062-5 LonWorks® and BACnet® Protocol Information for Chillers (04/09) - (720KB) (Pub: 2009/08/18)
Models:ACZ,AGS,AGZ,MCP,TGZ,TSC,WCC,WDC,WMC,WSCProtocol information for LonWorks and BACnet MSTP networks applied to chillers with MicroTech® II unit controllersControl
ED 15063-4 MicroTech II Chiller Unit Controller Protocol Information for Modbus (09/09) - (273KB) (Pub: 2009/09/15)
Models:ACZ,AGS,AGZ,MCP,TGZ,TSC,WCC,WDC,WMC,WPV,WSCProtocol information for MicroTech II unit controllers on McQuay chillers using Modbus communicationsControl
ED 15100-1 MicroTech II Chiller Unit Controller Protocol Information for BACnet (09/09) - (488KB) (Pub: 2009/09/15)
Models:ACZ,AGS,AGZ,MCP,TGZ,TSC,WCC,WDC,WMC,WPV,WSCProtocol information for the MicroTech II unit controller on McQuay chillers using BACnet IP or Ethernet communicationsControl
ED 15117 BACnet and Lon Works Protocol Information Document - Magnitude WME Magnetic Bearing Chiller - (737KB) (Pub: 2010/04/27)
Models:WMEProtocol information for BACnet and LonWorks networks applied to the Magnitude Model WME magnetic bearing chillerControl
ED 15118 Modbus Protocol Information Document - Magnitude WME Chiller - (241KB) (Pub: 2010/04/27)
Models:WMEProtocol Information for Modbus networks applied to the Daikin McQuay Magnitude Model WME magnetic bearing chillerControl
ED 15119-1 Magnitude Chiller PICS Document - (62KB) (Pub: 2010/12/30)
Models:WMEBACnet Protocol Implementation and Conformance Statement (PICS) document for Daikin McQuay Magnitude magnetic bearing centrifugal chiller, Model WMEControl
LonWorks eXternal Interface File, Functional Profile Version CHCHLA24, for MicroTech II Chiller Unit Controllers (11/09) - (8KB) (Pub: 2009/11/16)
Models:AGS,AGZ,MCP,TGZ,TSC,WCC,WDC,WMC,WSCLonWorks® XIF for chillers with MicroTech® II chiller unit controllersControl
LonWorks® eXternal Interface File (XIF)/NXE and Resource Files for Magnitude™ WME Chiller - (15KB) (Pub: 2011/02/22)
Models:WMELonWorks XIF, NXE and Resource Files for the Daikin McQuay Magnitude Model WME magnetic bearing compressor centrifugal chiller
Unit
IM 1029-2 WMC Magnitude Magnetic Bearing chiller Installation Manual - (4,722KB) (Pub: 2013/01/17)
Models:WMCInstallation manual for Models WMC 145S-400D Magnitude magnetic bearing compressor chiller, B Vintage, 50/60 Hertz. Revised January 2013 with new electrical data.Unit
IM 1033-4 Magnitude Model WME Installation Manual - (6,151KB) (Pub: 2012/11/28)
Models:WMEMagnitude WME magnetic bearing compressor chiller 400 to 700 tons, installation manualUnit
IMM 1128-1 Knockdown Installation - (5,519KB) (Pub: 2013/06/04)
Models:WMC,WME,WSCInstallation manual for disassembly and reassembly of centrifigul chillersUnit
OMM 1008-3 WMC-B Operating Manual - (1,731KB) (Pub: 2012/10/08)
Models:WMCOperating Manual for WMC B Vintage Magnitude Magnetic Bearing Centrifugal Chillers. Revised October 8, 2012Unit
OMM 1034-4 Magnitude Chiller WME 500 - 700 Operation and Maintenance - (3,445KB) (Pub: 2012/11/28)
Models:WMEOperating and Maintenance Manual for Magnitude magnetic bearing chiller, Model WME 500 and 700. Software version 4.33.1Control
IM 735-3 LonWorks Communication Module for Chillers (12/10)) - (326KB) (Pub: 2011/01/04)
Models:ACZ,AGS,AGZ,TGZ,WCC,WDC,WMC,WMM,WSCInstallation manual for the LonWorks communication module for McQuay chillers with MicroTech II unit controllersControl
IM 736-5 BACnet MSTP Communication Module (05/07) - (637KB) (Pub: 2009/08/18)
Models:ACZ,AGS,AGZ,TGZ,TSC,WCC,WDC,WMC,WSCInstallation manual for the BACnet MSTP communication module used on McQuay chillers with MicroTech II unit controllersControl
IM 743-5 MicroTech II Chiller Unit Controller Modbus Communication Module (12/10) - (209KB) (Pub: 2010/12/21)
Models:ACZ,AGS,AGZ,TGZ,WCC,WDC,WMC,WSCMicroTech II Modbus Communications Module for serial communications.Control
IM 837-1 BACnet IP Communication Module for Chillers - (398KB) (Pub: 2010/12/21)
Models:ACZ,AGS,AGZ,TGZ,WCC,WDC,WMC,WSCInstallation manual for BACnet Ethernet or IP communication module for McQuay Chillers with MicroTech II unit controllers. Electronic only.Control
IM 906-2 MicroTech II Chiller BACnet MSTP Communication Module - (580K) (Pub: 2010/12/21)
Models:ACZ,AGS,AGZ,TGZ,WCC,WDC,WGS,WGZ,WMC,WSCInstallation manual for the BACnet MSTP communication module for McQuay chillers with MicroTech II unit controllers. Electronic only.Control
IM 963-1 BACnet® Module for Magnitude™ WME Chiller - (481KB) (Pub: 2010/08/11)
Models:WMEInstallation manual for the BACnet communication module on Daikin McQuay Magnitude Model WME magnetic bearing centrifugal chillersControl
IM 965-1 LonWorks® Module for Magnitude™ WME Chillers - (306KB) (Pub: 2010/08/11)
Models:WMEInstallation manual for the LonWorks communication module for the Daikin McQuay Magnitude Model WME magnetic bearing centrifugal chillerControl
IM 993-1 Modbus® Module for Magnitude™ WME Chiller - (392KB) (Pub: 2010/08/11)
Models:WMEInstallation manual for Modbus communication module for Daikin McQuay Magnitude Model WME magnetic bearing centrifugal chiller
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Replacement Parts List: 7000055 - (1,120KB) (Pub: 2011/09/20)
Models:WMCRPL: WMC 150A, Water-Cooled Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000058 - (1,154KB) (Pub: 2011/09/20)
Models:WMCRPL: WMC 035T, Water-Cooled Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000087 - (1,890KB) (Pub: 2011/10/24)
Models:WMCRPL: WMC 145SSC, 145DSC-290DSC Vintage A; Water-Cooled Chiller, Magnetic Bearing CompressorUnit
Replacement Parts List: 7000089 - (198KB) (Pub: 2010/09/24)
Models:WMMRPL: WMM 145S, Water-Cooled, Magnetic Bearing Compressor Modernized ChillerUnit
Replacement Parts List: 7000147 - (1,134KB) (Pub: 2011/10/28)
Models:WMCRPL: WMC 400DSC Vintage A, Magnitude Water Cooled Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000176 - (2,709KB) (Pub: 2013/01/17)
Models:WMERPL: WME 0500S, Magnitude Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000189 - (1,623KB) (Pub: 2011/10/28)
Models:WMCRPL: WMC 400DBS Vintage B, Magnitude Water Cooled Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000228 - (2,019KB) (Pub: 2013/01/17)
Models:WMERPL: WME 0700S, Magnitude Magnetic Bearing Centrifugal ChillerUnit
Replacement Parts List: 7000230 - (1,667KB) (Pub: 2011/10/28)
Models:WMCRPL: WMC 145SBS, 145DBS-290DBS Vintage B; Water-Cooled Chiller, Magnetic Bearing Compressor
Unit
Magnitude WMC (Revit 2010 Zip) - (158MB) (Pub: 2012/04/17)
Models:WMCRevit 2010 content for Magnitude model WMC 145 ton single circuit, and 145 - 400 ton dual circuit frictionless magnetic bearing, compressor water cooled chiller using R-134A refrigerant.Unit
Magnitude WME (Revit 2010 Zip) - (52.4MB) (Pub: 2013/01/21)
Models:WMERevit 2010 content for Magnitude 400 to 700 ton model WME frictionless magnetic bearing compressor, water cooled chiller using R-134A refrigerant.
Unit
ED 8028 Seismic Certification of Daikin McQuay Centrifugal Chillers - (91KB) (Pub: 2012/06/22)
Models:AE,AR,AV,AZ,CAC,CAH,OAC,OAH,RAH,RDS,RFS,TSC,WCC,WDC,WMC,WME,WSCLists the seismic certification details of Daikin McQuay Centrifugal chillers and other products. Covers both IBC certification and OSHPD pre-approval.
Unit
WMC Chiller Seismic Testing Video - (9,986KB) (Pub: 2011/06/09)
Models:WMC,WMEVideo of the shake table seismic test performed on the Model WMC magnetic bearing chiller. This is a zipped file of a WMV video file. Download the file to your hard drive and then unzip the file to view the video using Windows Media Player.
Unit
WMC Chiller Seismic Testing Video - (9,986KB) (Pub: 2011/06/09)
Models:WMC,WMEVideo of the shake table seismic test performed on the Model WMC magnetic bearing chiller. This is a zipped file of a WMV video file. Download the file to your hard drive and then unzip the file to view the video using Windows Media Player.


Modbus®
