Buffalo Fan Industrial centrifugal fans, AHU OEM blowers, ventilators, high pressure blowers, high temperature oven exhaust and high temperature circulating fans; and wall / roof exhaust ventilator fans.< Sales of industrial air handling units, direct gas fired air handlers, indirect gas fired AHU airhandlers, as well as commercial and industrial blowers, fans, centrifugal and axial ventilators, heat exchangers, heating, cooling finned coil, aluminum, copper, steel, stainless, Heresite coated coils, commercial, institutional, condencing, AHU units, gas fired air handlers, air-handling blowers, ARI fans, damper actuators, fined coils.
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BUFFALO FAN

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Air Handling Units


Buffalo Fan Co. offers two major gas fired Air-Handling Unites (AHU) types: direct gas-fired and indirect gas-fired airhandlers.

DIRECT GAS-FIRED AHU

Direct gas-fired AHUs have a gas burner installed directly in the outside makeup air stream. The products of combustion (carbon dioxide [CO2], carbon monoxide [CO], nitrogen dioxide [NO2]) are discharged directly into the makeup air stream and supplied to the building ventilation area.

INDIRECT GAS-FIRED AIR HANDLING UNIT

An indirect gas-fired AHU has a sealed combustion air chamber where all products of combustion are discharged through a flue to the outside environment and no products of combustion are discharged within the make-up air supplied to the building. Such equipment also frequently is utilized for recirculating air applications.

DIRECT-GAS-FIRED AIRHANDLER COMPONENTS

Though simple in principle of operation, direct gas-fired AHUs have sophisticated burner-control blower systems. Unit sizes range from 1,000 cfm with a heating capacity of 80,000 Btuh to 100,000 cfm with a heating capacity of 15 million Btuh. Direct-gas-fired-AHU components usually include housings, supply fans, heating & cooling coils, outside air intake hoods, intake dampers, filters and burners.

AIR HANDLING UNIT HOUSINGS

AHU air-handler housings are made of galvanized or aluminized steel. Access panels are provided to access air dampers, filters, burners, and fans / motors. AHUs located outside are provided with a sloped roof and standing seam joints.

AHU SUPPLY FANS

Fans typically are double-width double-inlet (DWDI) with forward-curved or backward-inclined blower blades. Fans can come with open drip-proof (ODP) or totally enclosed fan cooled (TEFC) motors. The most typical external static pressure in the 2- to 3-in.-wg range. Because most outside istalled air handling units can operate  below 0°F, fan motors and bearings are rated to handle lower temperatures. For applications that require supply-air temperatures higher than 110°F, the motors and fan bearings are rated for maximum design operating temperatures when placed in draw-through configurations.

AIR INTAKE DAMPERS AND HOODS

Outside air intake hoods or weather hoods are designed for an installation specific location and usually provided with bird screens. Outside-air intake isolation dampers are furnished to prevent cold air from dropping through a unit into a warm building and warm air from escaping through a unit during winter months, when it is not in operation. Low-leakage parallel blade isolation dampers are most standard. The fan discharge is located at the opposite to isolation-damper position.

AHU FILTERS

A filter cabinet normally has 30 / 30 filters in a V-bank configuration to increase filter area and reduce static-pressure drop across the fan filters. Higher-efficiency filters are used on application.

BURNERS

A burner consists of a cast-iron or aluminum pipe assembly with drilled gas orifices. The fuel-air mixing is controlled by perforated stainless-steel baffles attached to the pipe assembly. The burner can be placed in the outside airstream or in the outside / return mixed-air stream. But to prevent potentially hazardous combustion byproducts of indoor-air contaminants, the burner is placed in the outside airstream only. The required airflow across the burner must be within a specific velocity range (typically 2,500 to 3,500 fpm) for proper combustion. For variable airflow units, a modulating bypass damper or profile plate maintains the airflow velocity within the specified velocity range. Otherwise, the burner can experience inefficient operation, generate odors in the occupied spaces served, and create an un-safe increase in certain products of combustion.





Industrial gas-fired airhandler Heatcraft ahu air-handling units                     Industrial gas fired Heatcraft air handling unit airhandler





Buffalo Fan Co. Air Handling Units are well-known for:

LONG SERVICE LIFE:
We use premium quality industrial-grade materials and additional protective coatings for external surfaces and internal components of our Air Handling Units - to withstand the specific gases flow and the installation conditions of each application, industrial and commercial / institutional.

CAPACITIES: Up to 100,000 CFM for standard construction and larger, custom made on special request.

FLEXIBILITY: Every air-handling unit is designed for the specific installation and connections conditions. The unit floor area and its cross section dimensions are adjusted for precise room available at site.

EASY INSTALLATION: Packaged compact or sectional design provided with lifting arrangement and protections for easy transportation and handling / installation at site.

LOW MAINTENANCE: Service friendly design which provide large room inside cabinet, access doors, light and rigid floor ensuring accessibility to all components.

HIGH EFFICIENCY: Fans, coils, motors, humidifiers, filters, external insulation material, silencers, enclosure tightness, and other components are carefully selected and engineered for lowest energy consumption.

OPERATIONALLY SAFE: Safety devices and guards are provided in accordance to the international regulations and the customer specific requirements.

PRECISE PERFORMANCE: To match the customer capacities requirement utilizing the computerized selection for each component.

To submit your Request for Quotation, click here:


Industrial gas fired air handling units, direct fired and indirect gas fired air handlers.
Buffalo Fan blowers : buffaloblower


New York, Twin City Fan, Northern Blower, Chicago Blower, Sheldons, Cincinnati Fan, Hartzell, IAP, Industrial air products, Canadian blower, Aerovent, Penn Ventilation, Penn-Barry, Barry Blower, ACME, Aerovent, Alphair, American Fan, Lau Industries, Clarage, Delhi, Canarm, Leader Fan, Daltec, ABB, Flakt, Flaktwoods, Woods, MK Plastics, Robinson Industrial, Garden City Fan, Loren Cook, Jen-air, Jenn Fan, Aeroflo, Grainger, Greenheck, Kice Fan, ILG Industries, Canada Fan, Industrial Air, Ceilcote, Breidert, Anderson 2000, Solar and Palau, Strobic Air, Trane, TCF Axial fans and ventilators.

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HEAT TRANSFER COILS

We are in the business of competitively priced, custom engineered heating and cooling coils for both “New Construction” and “Replacement” applications. We will build a coil to your design or you can provide us with your requirements and we’ll design the coil for you using our computerized coil selection program.

Most coils are available with fast delivery – in as little as 1 week !

CANADA BLOWER is a well-known supplier of heat transfer coils for a variety of applications. We will build a coil to your design or you can tell us your requirement and we'll design it using our computer coil selection programs.

We specialize in rapid delivery of replacement coils.

TYPES OF COILS :

Fluid (Cooling & Heating) Coils
Chilled or hot water / glycol coils suited to a wide variety of applications - from commercial HVAC to industrial preocesses.

Steam Coils
Constructed with heavy wall copper tubing

Evaporator Coils
Induvudually designed to optimize performance on air conditioning or high to medium temperature refrigeration applications.

Condencer / Heat Reclaim Coils
Designed to handle your condencing or heat reclaim requirements.

Special Coils
For your special applications or a "one-of-a-kind" replacement.

Direct expansion coils for duct ventilation systems:

- HC Hot Water, CW Chilled Water Coils are designed to mount on the inlet of the duct fan or inside the ventilation duct.  The coils utilize lead free construction - safe for use with potable water systems.

- Aluminum fin on copper tube construction.

- All coils are factory leak tested to 500 p.s.i.

- Hot Water Coils are 2 row, Chilled Water Cooling Coils and Direct Expansion Coils are 4 row.

- Convenient for both new and renovation installations.

- Suitable for remote installation inside ventilation ducts.

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