Specifications

4 Catalog 602-2
The New Compressor Technology
For Magnitude™ Model WME see Catalog 604
Next Generation Centrifugal -
Here Today
The industry’s next generation of centrifugal chillers is
here today with Daikin McQuay Magnitude chillers.
The new technology begins with centrifugal
compressors utilizing frictionless magnetic bearings
for oil-free operation, integral variable-frequency
drives, and high-speed direct drive technology. The
high efficiency compressor is matched with highly
efficient heat exchanges to make an impressive chiller.
The control system is based on Daikin McQuay’s
MicroTech II family to provide the optimum chiller
control system. We invite you to look at how the
features and benefits compare to older compressor
technologies.
Benefit Summary
 Highest Efficiency- in its size range; as low as
0.328 kW/ton.

Increased Reliability This frictionless
magnetic bearing design needs no oil
management system. With no oil to coat the heat
transfer surfaces, a gain in heat exchanger
efficiency can be realized.

Ultra Quiet A compressor sound level as low as
76 dBA, with virtually no structure-borne
vibration, eliminates the need for expensive sound
attenuation accessories.
 Sustainable Performance All oil-lubricated
chillers will deposit oil on heat transfer surfaces
and eventually lose some efficiency. Since the
Magnitude chiller uses a positive pressure
refrigerant (HFC 134a) and has no oil, its
industry-leading efficiency is maintained for the
life of the chiller. Additionally, over time
negative pressure chillers (such as those using
HCFC 123) may draw air and moisture into the
system, which can significantly increase energy
consumption.
 Smart refrigerant choice The compressor is
optimized for HFC 134a, the positive pressure
refrigerant with no phase-out schedule and no
ozone depletion.