US DRAFT CO. – The Draft Control System is designed to optimize the appliances’ operating efficiencies by maintaining a constant pressure in the common manifold throughout the firing cycle. The Draft Control System employs a mechanical draft fan or damper-actuator with EC-Flow™ Technology; a fully modulating, pressure-based VIC or mVIC control. Both the VIC and mVIC are programmable and designed to interlock with up to four appliances. The VIC is as also designed to interface with the building management system via a Modbus gateway.

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