Advanced Refrigeration Systems

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Variable Frequency Drives


Yaskawa VFD's by FortaCool

  • FortaCool® Variable Speed Compressor Racks are proven to be 20-50% more efficient than conventional systems, resulting in enormous energy savings for our customers.
  • The Key to our energy savings is the use of Variable Frequency Drives (VFD's) by Yaskawa.
  • Our Variable Speed Drives control the speed of the motor as needed, bringing the motor to operating speed by soft starting it over a period of 30 to 45 seconds, resulting in more energy efficient compressors.


Yaskawa VFD  Yaskawa VFD

Variable Speed vs. Constant Speed

  • Variable Frequency Drives lower power bills because the compressors only run at the speed necessary to match the refrigeration loads and greatly reduced demand charges because the compressors are "soft started"
  • Conventional motors come to operating speed from a dead stop to 1800 or even 3600rpm within one second, putting significant physical stress on the motor, causing more failures and maintenance costs.
  • Over 500% of normal running power is needed to start Conventional motors, resulting in a power "spike" with high "demand charges" which can have a considerable effect on the electric bill.
                           Variable vs Constant

More on Yaskawa VFDs

  • Variable Speed drives control the temperature cycles to have a much more steady change in temperature, avoiding wilding swings in temp.
  • The E7 Drive is designed exclusively for Commercial HVAC applications. All features are designed for this purpose, including Building Automation communications. Metasys N2, APOGEE FLN and Modbus are embedded.
  • Ethernet/IP, Modbus TCP/IP and LonWorks are plug-in options. The drive is plenum rated for variable torque applications.
  • Anti-windmilling, motor preheat, energy-savings, and PI set point control are standard. Many options are available.

Learn more about our VFDs

                     Temp Cycles

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  • Sacramento, CA 95834
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