Commercial Products  >  Draft Control
EBC 24
Modulating Fan Control

The EBC 24 is a multi-use draft or pressure controller used with fans and dampers to monitor and maintain a constant draft or pressure by varying the speed of a fan(s) or the position of an actuator. Typical uses are:

  • Maintain a constant draft by modulating a power venter in a mechanical draft system serving boilers and water heaters, or
  • Maintain a constant draft by modulating position of an over-draft damper serving boilers and water heaters, or
  • Maintain a constant room pressure by modulating a combustion air supply fan
  • Control the supply of combustion air to a mechanical room or directly to a boiler(s)
  • Control and maintain room pressure


  • Controls exhaust fan, damper or supply fan via PID loop.
  • “Plug-n-Play” monitor all terminals and registers components attached
  • 0-10V signal for Edrive or actuator control
  • Programmable operating range
  • Bi-directional transducer
  • LCD
  • Interlock with up to 2 heating appliances
  • Integrated safety system
  • Priority operation function
  • Intermittent or continuous operation
  • Integrated Modbus protocol


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 -1.0 to +1.0 inWC / -250 to +250 Pa
Tolerance 0.01 inW (3 Pa) +/- 10%
Output 10-120VAC / 0-10VDC
Control Relays (2) Max 120VAC/8A
EMC Standard Emission: EN50 081-1, Immunity: EN50 081-2
Protocol Modbus
Warranty 2 Years
Listing Certification NEMA 3R
ANSI/UL 60947-1 & 60947-4-1 Switches, Industrial Control
UL 378, Standard for Draft Equipment when used with RSV, TDF, BPV
CSA C22.2 No. 14-10, Standard for Industrial Control Equipment

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