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Indirect-Fired Indoor, Power-Vented Make-Up Air (DBP) 1000x1000
Indirect-Fired Indoor, Power-Vented Make-Up Air (DCP) 1000x1000
Indirect-Fired Indoor, Power-Vented Make-Up Air (DBP) 1000x1000 thumbnail
Indirect-Fired Indoor, Power-Vented Make-Up Air (DCP) 1000x1000 thumbnail

DBP/DCP Series

Indoor Power-Vented Indirect-Fired Make-Up Air System

Modine’s Indoor Power-Vented Indirect-Fired Indoor Make-Up Air Systems offer high-efficiency heating solutions designed for both commercial and industrial applications.

These advanced systems prioritize performance and adaptability, featuring duct furnace and blower systems (Model DBP). They can also be customized to include a cooling coil section (Model DCP) for year-round climate control. The DBP/DCP Series features an integral power exhauster, enabling efficient horizontal or vertical venting. This design significantly reduces ventilation losses and enhances the building’s overall energy efficiency.

Ideal for a variety of applications, these systems achieve impressive static pressure and provide an extensive airflow range from 750 to 14,500 CFM.

Models

  • System Unit with Furnace & Blower (DBP)
  • System Unit with Furnace, Blower, & Cooling Cabinet (DCP)
Where To Buy

Highlighted Features

Clean, Conditioned Outside Air

These power-vented systems deliver filtered, tempered outside air to maintain proper building pressure and ventilation—ideal for commercial and industrial facilities that require consistent, high-quality make-up air.

Efficient, Safe Indirect-Fired Heating

With an isolated heat exchanger, all combustion gases are vented outdoors, ensuring only clean, conditioned air enters the building. This improves indoor air quality while maximizing energy efficiency.

Reliable Installation & Serviceability

Indoor mounting protects the unit from weather exposure, while the power-vented design and service-friendly layout ensure dependable performance and simplified maintenance in demanding applications.

Product Details & Specifications

Key Features
  • Versatile Configurations: Choose from DBP (furnace & blower) or DCP (furnace, blower, & cooling coil section) models to suit your HVAC needs.
  • Wide Capacity Range: Available in 10 model sizes from 100 to 400 MBH, ensuring efficient heating for a wide range of applications.
  • Robust Blower Performance: Select from 5 blower sizes and numerous drive and motor combinations, delivering airflow from 750 to 14,500 CFM against a total static pressure of up to 3.0″ W.C.
  • Advanced Control Options: Equipped with variable frequency drives for multi-speed or variable air volume applications, along with modulating dampers and 0-10 Vdc signal-controlled actuators for precise airflow management.
  • Efficient Modine Controls System: Utilizes a Carel microprocessor controller designed for complex HVAC/R applications, enhancing overall system performance.
  • Fuel Efficiency: Achieve 80% thermal efficiency to maximize fuel savings. The systems are compatible with natural or propane gas, with field conversion options available.
  • Customizable Access and Installation: Specify right or left-hand control access upon ordering, and choose either a factory-installed DX cooling coil or one provided by others.
  • Diverse Options and Accessories: A wide array of controls and accessories allows for unit customization, meeting even the most demanding specifications.
  • Flexible Venting Solutions: Features vertical or horizontal venting capabilities with the smallest diameter vent pipe possible, ensuring efficient installation.
  • Enhanced Building Efficiency: Designed to handle reasonable negative pressures in buildings with inadequate makeup air, reducing off-cycle vent losses and improving overall energy efficiency.
  • Tested and Certified: ETL certification for the entire system
  • Proudly Designed, Engineered, and Assembled in the USA: Commitment to quality and craftsmanship in every unit.
Options

Factory-Configured Options

  • Input Capacities: 100, 125, 150, 175, 200, 225, 250, 300, 350, or 400 MBH
  • Heat Exchanger, Burner, & Drip Pan Material: All 409 Stainless Steel (Standard)
  • Development Sequence: Single Stage or Modulating
  • Access Side: Left-Hand or Right-Hand
  • Gas Type: Natural Gas or Propane Gas with IPI (Intermittent Pilot Ignition) Control
  • Gas Control Valves:
    • Single Stage
    • Two Stage
    • Electronic Modulation
    • Electronic Modulation — Primary or Secondary (for multiple-furnace setups)
    • Electronic Modulation (0-10 VDC external control signal)
  • Safety Switches: Premium Control Box standard (no gas pressure switches or high/low gas pressure switch options)
  • Supply Voltage & Control Transformer: Voltages of 115V/1ph, 208V/1ph, 230V/1ph, 208V/3ph, 230V/3ph, 460V/3Ph, or 575V/3ph paired with 75VA, 150VA, or 250VA control transformers
  • Blower size & Bearings: Various spider bearing or pillow block bearing configurations
  • Motor Horsepower & Type: 1/3 HP to 20 HP (Open Drip Proof [ODP] or Totally Enclosed [TE] motors; standard or high efficiency; available with or without motor starters)
  • Sheave Arrangement: V-belt adjustable-speed sheaves
  • Air Control Options: Openings, dampers, and modulating motors for Return Air (RA) and Fresh Air (FA) (e.g., 2-position, 3-position, 0-10 VDC modulating, or unit-mounted positioner)
  • Cooling Section Coils (DCP Only): Factory-installed DX Cooling Coils (Single or Dual Circuit; R32 or R454B) or Chilled Water Coils
  • Air Filtration: 2″ Permanent, 2″ MERV 8, or 2″ MERV 13 Filters
  • Cabinet Insulation: Double Wall Construction with 1″ Insulation in blower and/or cooling sections
  • Factory Control Safety Devices:
    • Airflow Proving Switch
    • Timed Freeze Protection (Low discharge thermostat with freeze protection timer)
    • Return Air or Supply Air Fire Stat
    • Double-Pole Double-Throw Control Relay
    • Blower Door Safety Switch
    • 115V GFCI Convenience Outlet
    • Dirty Filter Pressure Switch

See catalog 5-173 GAS-FIRED INDOOR AND OUTDOOR MAKE-UP AIR SYSTEMS & DUCT FURNACES for complete details.

Accessories

Field-Installed Accessories

  • Thermostats, Sensors, & Adjusters:
    • Single-Stage Room Thermostats (with or without switching)
    • Two-Stage Digital Non-Programmable Heating Room Thermostats (with switching)
    • Two-Stage 7-Day Programmable Room Thermostats (White Rodgers)
    • Duct Thermostats: Electronic Dual-Relay Controls (Johnson Controls) or Honeywell T678A1015 (with coiled sensing bulb)
    • Electronic Modulating controls (Maxitrol Discharge Air Sensors, Set Point Adjusters, and Room Override thermostats)
  • Variable Speed Controls: Variable Frequency Drives (VFDs) for speed control changeovers (available in low or high amp draw with UL Type 1 enclosures)
  • System Accessories:
    • 7-Day Programmable Timeclock
    • Mild Temperature Stat
    • Photoelectronic Duct Smoke Detectors (Sized for duct widths 0.5–2.5 ft or 2.5–5.0 ft)
    • Natural Gas Pressure Regulator
    • Summer/Winter Switch
    • Drain Connector Kit & Pipe Hanger Kit
    • Natural-to-Propane Gas Conversion Kits
  • Remote Panels: Standard and Custom Remote Monitoring Panels (incorporating status lights, switches, and Maxitrol set point adjusters)
Warranty
Applications

Using indirect-fired technology, the heated supply air remains free of combustion products, making this configuration ideal for commercial and industrial applications that require clean, conditioned ventilation air. Common applications include:

  • Manufacturing and assembly facilities
  • Warehouses and logistics centers
  • Commercial kitchens (make-up air supply)
  • Automotive and fleet maintenance buildings
  • Big-box retail
  • Institutional or municipal buildings
  • High-exhaust industrial environments

Tech Documents

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