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Indirect-Fired Indoor, Separated Combustion Make-Up Air (DBSDCS) 1000x1000 (1)
Indirect-Fired Indoor, Separated Combustion Make-Up Air (DBSDCS) 1000x1000 (1) thumbnail

DBS/DCS Series

Indoor Separated Combustion Indirect-Fired Make-Up Air System

Modine’s DBS/DCS Make-Up Air Systems provide reliable, high-efficiency heating for commercial and industrial settings. Designed for challenging environments, these Separated Combustion systems draw 100% fresh outside air and feature fully gasketed doors to protect internal components and reduce off-cycle heat loss.

With 80% thermal efficiency and model sizes ranging from 100,000 to 1,200,000 BTU/hr, these customizable systems are built to meet a variety of heating and make-up air needs while ensuring the durability and quality expected from Modine.

Models

  • DBS – Duct Furnace & Blower Section
  • DCS – Duct furnace, Blower, & Cooling Coil Cabinet
Where To Buy

Highlighted Features

Superior Air Quality

These systems draw 100% of combustion air from outdoors, keeping contaminants, dust, and chemicals away from the burner—perfect for manufacturing spaces, auto shops, and industrial environments with airborne particulates.

Safe, Indirect-Fired Performance

By fully separating the combustion process, the system ensures no combustion byproducts ever mix with the supply air—maintaining exceptional ventilation quality and ensuring code compliance in sensitive facilities.

Reliable Installation & Serviceability

Indoor installation shields the system from environmental wear, while the separated combustion design enhances reliability in harsh indoor air conditions. Accessible components simplify routine service and operation.

Product Details & Specifications

Key Features
  • Model Configurations: Available in two options – DBP (furnace & blower) and DCP (furnace, blower, & cooling coil section).
  • Wide Capacity Range: Available in 16 model sizes from 100,000 to 1,200,000 BTU/hr, ensuring efficient heating for a wide range of applications.
  • Enhanced Blower Performance: Five blower sizes and various drive and motor combinations provide robust performance from 750 to 14,500 CFM, achieving total static pressure of up to 3.0″ W.C.
  • Optimized Combustion: Combustion air is sourced entirely from outside, ensuring a consistent supply of fresh, clean air while minimizing off-cycle vent losses for improved building efficiency.
  • Variable Frequency Drives: Ideal for multi-speed or variable air volume applications, enhancing operational flexibility.
  • Advanced Control Options: Equipped with two-position, modulating, or 0-10 Vdc signal-controlled damper actuators for precise airflow management.
  • Modine Controls System: Features a Carel microprocessor controller suitable for complex HVAC/R applications.
  • Energy Efficiency: Achieves 80% thermal efficiency, promoting fuel savings and sustainability.
  • Fuel Options: Compatible with natural or propane gas, with field convertibility from natural to propane.
  • Customizable Configuration: Specify right or left-hand control access when ordering, and choose between a factory-installed DX cooling coil or options provided by others.
  • Extensive Customization: Wide range of controls, options, and accessories to meet demanding specifications.
  • Environmental Protection: Features separate electrical, venting, and gas control access with fully gasketed doors, keeping components sealed from the environment.
  • Flexible Venting Options: Choose from horizontal or vertical two-pipe or concentric venting systems to fit various installation needs.
  • Proudly Designed, Engineered, and Assembled in the USA: Commitment to quality and craftsmanship in every unit.
Options

Available Models:

  • DBS – Duct furnace & Blower
  • DCS – Duct furnace, Blower, & Cooling Coil Cabinet

Capacity Range:

  • Available in 16 model sizes from 100,000 to 1,200,000 BTU/hr, ensuring efficient heating for a wide range of applications.

Modine Indirect Gas-Fired Make-Up Air Systems are offered in a wide range of configurations and performance options. Please refer to our product catalog for specifications and model options: 5-173 Indirect Gas-Fired Make-Up Air Systems & Duct Furnaces Catalog

Accessories

Field Installed:

  • Remote control panels
  • Evaporative Cooler fill and drain kits
Warranty
Applications

The DBS/DCS Series is specifically designed for buildings with hostile environments, such as dusty, dirty, or humid applications. Common applications include:

  • Metal fabrication facilities
  • Paint, coating, or chemical processing facilities
  • Agricultural processing facilities
  • High-dust industrial zones
  • Industrial production plants
  • Commercial warehouses

Tech Documents

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