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Heat Reclaim Units

Heat Reclaim Units

Heat Reclaim Units

Product catalog summary
Introduction
The document provides a detailed overview of the HUNTAIR HRUTM, an air-to-air heat reclaim unit designed for commercial kitchen exhaust systems and other industrial applications. It highlights the system's ability to recover waste heat and use it to temper make-up air, offering energy savings and efficiency.

System Components and Operation
Each HRUTM unit includes a control cabinet for managing the wash system and fans. The system can operate manually or automatically, with a seven-day time clock option. It features a face and bypass damper assembly for temperature control, directing air through or around the thermal recovery coil as needed.

Heat Recovery Process
The HRUTM uses a heat pipe thermal recovery coil to transfer heat from exhaust to supply air. The coil is a counterflow heat exchanger with sealed partitions to prevent cross-contamination. The heat pipes facilitate an efficient evaporation-condensation cycle, transferring thermal energy with minimal temperature difference.

System Capacities and Customization
The HRU is available in nine basic sizes, with capacities ranging from 2,500 to 50,000 CFM, and custom sizes up to 100,000 CFM. Various fan types, damper options, and supplementary heating and cooling options are available to suit specific project needs.

Construction Features
The unit is constructed with a heavy-duty structural frame, galvanized panels, and large access doors. Optional features include stainless steel housing, epoxy paint, and outdoor cabinet construction.

Supplementary Options
Additional heating and cooling options include electric, gas, hot water, steam, and various cooling methods. Filter options include high-efficiency and HEPA filters.

Control and Safety Features
The HRU includes an electrical control panel with UL-listed components, a rainproof disconnect switch, and a thermostat-controlled damper system. Safety features include a fire sensor thermostat and an automatic washdown system.

Conclusion
The HUNTAIR HRUTM offers a comprehensive solution for heat recovery in commercial and industrial settings, providing energy savings, customizable options, and robust construction.
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Catalog excerpts

Heat Reclaim Units-2

The HUNTAIR HRU™ is an air-to-air heat reclaim unit that contains the exhaust fan, supply fan and a heat pipe thermal recovery coil with integral wash system packaged in a single housing. Designed specifically to handle the hot greasy air found in commercial kitchen exhaust systems, the HRU™ salvages waste heat generated from the cooking equipment, or other heat sources and uses it to temper the make-up air. It may also be designed for a multitude of othercommercial and industrial applications. In kitchen applications, exhaust duct temperatures can range from 90° to 120°F, depending upon the...

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Heat Reclaim Units-3

SAMPLE HRU UNIT TM EXHAUST OUTLET THERMAL RECOVERY COIL FACE AND BYPASS DAMPERS SUPPLY INLET OUTSIDE AIR DAMPERS PRE-FILTERS EXHAUST INLET OPTIONAL SUPPLEMENTARY HEATING OPTIONAL SUPPLEMENTARY COOLING SUPPLY OUTLET SUPPLY FAN CAPACITIES The HRU is available in 9 basic sizes, ranging in capacity from 2,500 to 50,000 CFM combined exhaust and supply volumes. Each unit is engineered and equipped to suit the specific operating conditions of each individual project. Other custom sizes are available for up to 100,000 CFM with heating and/or cooling capacities appropriate for any application. Units may...

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Heat Reclaim Units-4

GENERAL: Furnish_only HUNTAIR Model HRU™_ Air-to-Air Heat Reclaim Unit (HRU), as manufactured by HUNTAIR, INC., Tualatin, Oregon. The HRU shall handle both the exhaust and supply air. The Heat Reclaim Unit shall be a heat pipe heat exchanger using 1" I.D., integrally finned alumi- num tubing. Heat pipes shall have a capillary wick structure integral to the interior wall. Each heat pipe shall be individually processed, charged, and hermetically sealed. A sealed parti- tion shall separate the supply from exhaust airstreams prevent- ing contamination of one airstream by the other. EXHAUST & SUPPLY...

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