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Modulating Fan & Damper Controller

The ADC150 is a Modulating Fan and Damper Control used with gas fireplaces where it monitors and maintains a constant draft in a chimney. It is used with model RS fans.

It monitors the draft in a chimney system via a connection to a pressure transducer (XTP) attached to the chimney, and maintains the draft by modulating the fan speed.


  • 0-10VDC control signal for EDrive and 10-120VAC for variable speed
  • Integrated safety system with adjustable shut down time
  • Integrated damper relay that works with an EcoDamper.
  • End-switches in an EcoDamper actuator can be wired to the ADC150
  • Post purge function (180 sec) to evacuate residual flue gases after fireplace shuts down. 


Power Supply 1 x 120VAC
Amperage 6.3A
Control Mode Continuous or Intermittent
Control Signals 0-10 VAC (for VFD) and 120/240 VAC (for direct connect)
Range Of Operation 0-0.6 inWC / 0-150 Pa
Tolerance 0.01 inW (3 Pa) +/- 10%
Output 10-120VAC / 0-10VDC
Control Relays (6) Max 120VAC/8A
EMC Standard Emission: EN50 081-1, Immunity: EN50 081-2
Insulation Class NEMA 1 (IP 20)
Warranty 2-Year Factory Warranty
Listing Certification UL508/UL 60947, Standard for Industrial Control Panels
CSA C22.2 No. 14-95, Standard for Industrial Control Equipment
ADC150 Modulating Fan & Damper Controller—monitors and maintains a constant draft in a chimney
RS Chimney Fan—disperses the smoke sideways (horizontally) just like a standard chimney cap
Chimney Fan

Makes it easy to control your gas-fired fireplace and adds safety features, while being whisper-quiet.