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H Series

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

Modine’s outdoor power-vented Indirect-fired outdoor heating and make-up air systems deliver dependable, high-performance heating for demanding commercial and industrial HVAC applications. These weatherproof duct furnace and blower combinations are available in multiple configurations to support everything from recirculating heating to 100% outside-air make-up systems, with or without integrated DX cooling. All models feature integral power exhausters, robust blower performance, variable-frequency drives, and 80% thermal efficiency for reliable, energy-efficient operation.

Models

  • HBP – Duct Furnace & Blower
  • HDP – Duct Furnace, Blower, & Downturn Plenum
  • HCP – Duct Furnace, Blower, & Cooling Coil Section
  • HPP – Duct Furnace, Blower, Cooling Coil Section & Downturn Plenum

Highlighted Features

100% Outside Air

These outdoor-mounted units take in and temper 100% outside air before supplying it to the building, providing effective pressure control and enhanced indoor air quality without using indoor space.

Weather-Ready, Power-Vented Design

Engineered with rugged, corrosion-resistant housings and power-vented combustion systems, these units ensure stable performance, safe venting, and reliable heating even in extreme weather.

Simple Indoor Installation

The outdoor configuration frees valuable interior square footage and enables easy integration with existing ductwork. Service access panels and modular components streamline installation and long-term maintenance.

Product Details & Specifications

Key Features
  • Versatile Model Configurations: Choose from HBP (furnace & blower), HDP (furnace, blower, & downturn plenum), HCP (furnace, blower, & cooling coil section), and HPP (furnace, blower, downturn plenum, & cooling coil section) to fit your specific needs.
  • Wide Capacity Range: Available in 16 model sizes, delivering from 100,000 to 1,200,000 Btu/hr.
  • Robust Blower Performance: Select from 5 blower sizes and numerous drive and motor combinations, achieving performance from 750 to 14,500 CFM against a total static pressure of up to 3.0″ W.C.
  • Advanced Controls: Modine Controls System featuring a Carel microprocessor controller for complex HVAC/R applications, complemented by options for two-position, modulating, or 0-10 Vdc signal-controlled damper actuators.
  • Energy Efficiency: With an impressive 80% thermal efficiency, our units provide significant fuel savings.
  • Fuel Flexibility: Designed for natural or propane gas use, with the ability to convert from natural to propane gas in the field.
  • Custom Accessibility: Specify right or left-hand control access during the ordering process to suit your installation preference.
  • Cooling Options: Available with factory-installed DX cooling coils, or coils can be provided by others for added flexibility.
  • Comprehensive Customization: A wide range of controls, options, and accessories can be integrated to deliver customized solutions that meet demanding specifications.
  • Low-Profile Installation: Features an integral power exhauster, ensuring a streamlined and low-profile installation.
  • 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

Available Models:

  • HBP – Duct Furnace & Blower
  • HDP – Duct Furnace, Blower, & Downturn Plenum
  • HCP – Duct Furnace, Blower, & Cooling Coil Section
  • HPP – Duct Furnace, Blower, Cooling Coil Section & Downturn Plenum

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
  • Insulated roof curbs
  • Roof curb discharge and return air connection kits

Warranty

Applications

Engineered for commercial and industrial buildings, these systems integrate heat, ventilation, filtration, and optional cooling into a single rooftop or pad-mounted unit. While preserving indoor space. Common applications include:

  • Warehouses and distribution centers
  • Manufacturing plants
  • Retail big-box stores
  • Commercial kitchens
  • Schools and institutional buildings
  • Gymnasiums and athletic facilities

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