US Draft Co.
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VCS Vent Control System ABOUT The Vent Control System from US Draft Co maintains a constant negative pressure in the exhaust common manifold or individual chimney/vent. Designed with EC-Flow Technology™, the VCS takes advantage of US Draft Co. bi-directional pressure transducer and proprietary PID technology to rapidly respond to varying manifold or individual system pressure on Category I, II, III & IV as well as building heating appliance systems. Utilizing the Truline™ inline or termination draft inducer, a V-series control and pressure transducer, the system interlocks with fossil fuel fired heating appliances to maintain the required outlet pressure of the manufacturer.

CBX Termination Fan
TRV Inline Draft Inducer
T9F Inline 90˚ Inline Draft Inducer
 control-option

Control Options

V150 Constant Pressure Controller
  • - Up to 2 Appliances
  • - Up to 2 Applications
  • - True bi-directional (+/- 1.0" wc)
  • - 4-button LCD screen
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V200 Constant Pressure Controller
  • - Up to 4 Appliances
  • - Up to 2 Applications
  • - True bi-directional (+/- 1.0" wc)
  • - 4-button LCD screen
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V250 Constant Pressure Controller
  • - Up to 6 Appliances
  • - Up to 2 Applications
  • - True bi-directional (+/- 1.0" wc)
  • - 4" Color Touchscreen
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V300 Constant Pressure Controller
  • - Up to 4 Appliances
  • - Up to 3 Applications
  • - True bi-directional (+/- 1.0" wc)
  • - 7" Color Touchscreen
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V350 Constant Pressure Controller
  • - Up to 15 Appliances
  • - Up to 3 Applications
  • - True bi-directional (+/- 1.0" wc)
  • - 7" Color Touchscreen
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AX42 Constant Speed Controller
  • - Up to 4 Appliances
  • - Up to 2 Applications
  • - Fixed speed
  • - On-board potentiometer
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