A Division of RM Manifold Group, Inc

120 S. Sylvania AveSuite A

Fort Worth, TX 76111Phone: 817-393-4029

www.usdraftco.com

The Industry Standard in Draft Control

ODCS - Over Draft Control System

The Over Draft Control System (ODCS) maintains a constant pressure in the exhaust common manifold or required pressure (negative or positive) at the individual connector. Designed with EC-Flow Technology™, the ODCS 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 Opposed Blade Damper (OBD), 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. The ODCS meets all requirements for the National & International Fuel Gas Codes and the Uniform & International Mechanical Codes.

All Stainless Steel Contruction The OBD is is constructed of all high grade stainless steel. This can withstand the harsh conditions caused by corrosive condensation on low-temp boiler application.

OBD - Opposed Blade Damper Application Gas vents serving Category I, II, III & IV appliances Pressure rated chimneys & L Vents Construction 16 gauge 316L stainless steel housing and blades 1/2” 316L stainless steel bearings External linkage

V-Series Constant Pressure Controller Application Mechanical draft systems serving all types of chimneys and gas vents, up to 14 appliances Construction A NEMA 1 housing constructed of mild steel power coated to prevent corrosion.

ODCS - Over Draft Control System

LP4 Bi-Directional Pressure Transducer The LP4 is used to provide pressure feedback to the V-Series controller capable of sensing from -1.0” to +1.0” w.c.

EC-Flow™ Technology EC-Flow™ Technology has been developed to better control manifold pressures seen while common venting condensing appliances. Our proprietary algorithms, including an industry-leading bi-directional pressure transducer, are designed to anticipate rapid load changes often seen during normal operations.

LP4transducer

V-seriescontroller

GFS - Gas Flow Switch The GFS is used to verify the operation of the CDS Includes a SPDT relay rated to 5 amps at 120VAC The flow switch setting is adjustable from 0.08” to 1.2” w.c.

GFSFlow Switch

OBDOpposed Blade

Damper

Our mission at US Draft Co. is to develop leading edge technology for the heating appliance and fireplace venting industries. With over 25 combined years of experience, our founders are determined to standardize the use of mechanical draft and draft control systems through quality and innovation. Utilizing the latest and most efficient technology available, US Draft Co. has developed a full line of mechanical draft inducers, variable volume flue dampers and related controllers. With revolutionary advances such as our EC-Flow™ technology and Truline™ fan construction, US Draft Co. is solving the venting challenges presented by the next generation of appliances. At US Draft Co., we understand the complex issues presented in modern day appliance venting and we are ready to assist you in your venting needs.

US Draft Co. maintains a strong tie to American ingenuity and integrity. Our products are proudly made in the USA in our factory located along the West Fork of the Trinity River in Fort Worth, TX.

120 S Sylvania Ave, Suite A Fort Worth, TX 76111 P-817-393-4029 www.usdraftco.com