Modine offers indoor indirect gas fired system units that couple our duct furnaces to a blower section. Offered in multiple configurations for applications ranging from simple 100% recirculation heating only to more complex make-up air units with heating and cooling and damper economizer controls, Modine can meet your needs. System units are available in three types of venting configurations: Gravity Vented “D” Series Model system units are an economical choice for superior quality and dependability in most applications. These units feature the following: • Model configurations available are DBG (furnace & blower) and DCG (furnace, blower, & cooling coil section) • Available in 17 model sizes from 75,000 to 1,200,000 Btu/hr • Selection of 6 blower sizes and many drive and motor combinations allows robust blower performance from 556 to 14,500 CFM against a total static pressure of up to 3.0″ W.C. • Variable frequency drives for multi-speed or variable air volume applications. • Two position, modulating, building pressure sensing, or 0-10 Vdc or 4-20 mA signal controlled damper actuators. • 80% thermal efficiency for fuel savings. • Uses natural or propane gas (field convertible from natural to propane gas). • Right or left hand control access can be specified when ordering the unit. • Available with either a factory installed DX or chilled water cooling coil or the coil can be provided by others. • A wide range of controls, options, and accessories for unit customization to meet even demanding specifications. • Because the unit relies on a natural draft to vent properly, power vented units should be considered if the vent system is horizontal or if the space in which the unit is located is generally under a negative pressure. Power Vented Models DBP/DCP include the items featured for the Gravity Vented Models DBG/DCG, but adds an integral power exhauster that allows for: • Vertical or horizontal venting with the smallest diameter vent pipe possible. • The ability to overcome reasonable negative pressures seen in buildings with inadequate make up air. • Improved building efficiency through the reduction of off-cycle vent losses. Separated Combustion Models DBS/DCS builds upon the advantages of the Power Vented Models DBP/DCP, but is specifically designed for buildings with hostile environments, such as dusty, dirty, or humidity applications. This model features: • Separate electrical, venting, and gas control access with fully gasketed doors to seal components from the environment. • Combustion air that is drawn completely from outside to ensure that the unit will always have plenty of fresh, clean air. • Since combustion air is introduced from outside, off-cycle vent losses are essentially eliminated, further improving building efficiency. • Horizontal or vertical two-pipe or concentric venting options. Heating & Air Conditioning Manufacturers Representatives Since 1950 Back |