Documented in Utility Commissioned Work Papers


CWS HVAC CHIP, Hvac Smart Chip and other SFT (Smart Fan Technology) devices are built for residential installation at the HVAC unit air handler or at the thermostat. These devices are not robust enough for commercial / industrial central HVAC systems most often installed on rooftops where ambient temperatures often reach over 130 degrees F. These HVAC systems’ 24V AC transformers may drive load levels that create large current spikes. They may also drive other boards including defrosters, special fan boards, etc. The newly introduced CWS 8THEM-0006 (Rev. D) is an industrial grade, highly reliable efficient fan controller designed to operate with large tonnage Compressors / Heat Pumps.

Work papers published by Sempra Utilities, S.D.G.& E., P.G.&E. and others show substantial savings achieved through Smart Fan Technology. C.W.S. now provides comparable savings to those achieved in residential energy efficiency programs to commercial energy consumers. C.W.S. patented algorithms intelligently predict and signal optimal fan extension run time for each cycle independently. It stores and computes the compressor ON and OFF cycle data over an extended period of time and adjusts the fan extension times automatically based on continuing data interpretation. This efficient recovery of otherwise wasted energy left in the compressor cooling coils and duct system results in a more cost effective system and increased comfort.

In any commercial or industrial HVAC system, external air is partially drawn into the building as required by California codes. This can rapidly increase the building temperature if the fan extension is allowed to run blindly for too long. Our patent pending technology enables CWS-8THEM-0006 (Rev. D) to reduce fan extension time, when appropriate, based on the outside air temperature. CWS-8THEM-0006 (Rev. D) also includes:

  • A feature disallowing fan extension during heat pump operation in cold weather
  • Has a front end electrical noise filter
  • Uses high temperature rated components
  • Has sets of highly reliable latching relays
  • Does not consume energy when latched in either the ON of OFF positions
  • The module is potted for moisture, dust proofing and prevention of damage from hostile elements
  • Manufacturer tested to military grade specifications

These features all result in decreased electrical energy consumption and system safety.


  • Reduce your utility bill up to 14.8% in the summer and 11.8% in the winter.
  • Reduce the number of on and off cycles thereby increasing the lifetime of your HVAC unit.

CLICK HERE for detailed installation instructions in PDF format


  • The HVAC-CHIP records how long the compressor or heater has been powered on and how long it has been powered off or depends on any one power on or power off duration over many cycles and predicts the fan extension. It does not depend on current compressor or heater cycle.
  • It extends the HVAC blower for a predicted additional run time after the compressor or heater has shut down.
  • Energy savings is achieved by blowing the residual cold or hot air back into the building intelligently.

CWS HVAC Chip 0006X / 0006D Disclaimer:

HVAC Chip 0006X / 0006 Rev D  must be used in accordance with manufacturer specifications and application guidelines. The 0006X and 0006 rev D makes the gas furnace blower fan runs at variable speed for maximum energy savings.

WARNING: This product can expose you to chemicals, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to P65 Warnings website .

Are You Ready to Save Money and Energy?

Disclaimer: Coil Winding Specialist, Inc., its affiliates, agents, and employees acting on behalf of Coil Winding Specialist, Inc. (collectively, “CWS”) disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. CWS reserves the right at any time and from time to time to make changes to design, technical specification, or construction of any product listed on this website without notice. CWS also reserves the right to discontinue or limit sale of any product or service available throughout this website on temporary or permanently basis without notice. CWS highly recommends customers not to use its products offered on this website for inappropriate use and applications. Products should be tested for its suitability by prospective customers in all possible applications and conditions. Customers using or selling CWS products for use in other than recommended applications do so entirely at their own risk and agree to fully indemnify CWS from any damages arising or resulting from such use or sale.

© 2019 Coil Winding Specialists, Inc. | All Rights Reserved | Site Design by MosaicVisual