CENTRIFUGAL ROOF VENTILATORS
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PROPELLER ROOF VENTILATORS
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SIDEWALL & UTILITY
SET FANS
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IN-LINE/CEILING &
CABINET FANS
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Sidewall Propeller Fans Belt Drive - Exhaust & Supply
Three Levels of Construction
Models LC, L2 & L3
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MODEL L3 - CONSTRUCTION
LEVEL 3
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PDF con características
técnicas del producto.
Tamaño: 645 KB |
MODEL LC - CONSTRUCTION LEVEL 1
MODEL L2 - CONSTRUCTION LEVEL 2
MODEL L3 - CONSTRUCTION LEVEL 3
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Applications:
Models LE (exhaust) and LS (supply) are high capacity wall mounted belt driven propeller fans rated from 35,000 to 85,000 and to 1.0" w.g. static pressure. Their primary application is the exhaust of large volumes of air at relatively moderate static pressure from commercial, industrial and agricultural buildings such as manufacturing and assembly plants, warehouses, founderies, mills, boiler rooms and equipment rooms.
Wall mounting provides an easy and economical installation. Belt driven fans provide large volumes of air at low fan speed and low noise levels and afford quick, easy performance adjustments. All required accessories are available with Model L.
See Models LC and L - level 2 construction, for lower static pressures and lighter duty requirements which are generally more economical. (Pages 2 and 3).
Construction/Specification Checklist
Belt Drive, Wall Exhaust (or Supply) Propeller Fan shall be provided as follows:
CERTIFICATIONS: Fans shall be AMCA Licensed for air and sound performance. Fans shall be UL and CUL 705 listed for electrical safety and reliability (optional).
PANEL ASSEMBLY: Panels shall be heavy gauge G-90 galvanized (optional aluminum) with spun one piece venturi. Motor and bearing plate shall be a minimum of 10 gauge G90 galvanized steel structurally secured to minimum 1.25 inch schedule 40 galvanized steel pipe by means of 12 gauge galvanized steel pipe brackets. Panel end support frame assembly shall be of welded, not bolted, construction with pre-punched mounting holes for easy installation.
PROPELLER: Propellers shall be six-bladed, die-formed, minimum 16 gauge, G90 galvanized steel with double 16 gauge laminations bolted to a welded, structural steel hub plate and keyed to the fan shaft. Fan shaft shall be precision turned, ground and polished steel. Props shall be statically balanced.
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DRIVES: All sheaves shall be sized to a minimum 150% of drive horsepower, machined cast iron adjustable pitch through 3 horsepower, keyed to both the motor and fan shaft. Fan shaft shall be precision turned, ground and polished steel. Belts shall be non-static oil and heat resistant V-belts.
BEARINGS: All bearing shall be self-aligning cast iron pillow block type with re-lube fitting and of the air handling style. Bearing design shall be for a minimum of L-50 200,000 hour average life.
MOTORS: Permanently sealed ball bearing type furnished to the specified voltage, phase and enclosure. All motors shall be mounted and factory run tested.
Motor Service Factor
Motor service factors are used in some performance selections shown. This is a safe and common industry practice that provides more performance for the investment. BHP is at the maximum catalog performance point. BHP at all other static pressures listed is less than that shown, in most cases substantially less. Because the motors are in the air stream there are no negative effects on motor life. Explosion proof and 2 speed motor applications are recommended at or below their nominal BHP levels. If desired, pick the next higher horsepower to eliminate this service factor useage. Refer to the Optisizer Fan Selection Program for actual BHP at any performance point.
Optional Accessories
• Wall Housing
• Wall Collar
• Dampers
• Mounting Flanges
• Motorside Guard
• Frontside Guard
• Rainhood
• Damper Guard
• Paint Finishes
• Electrical Accessories |
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Quickship Program
Most models and many optional accessories are available on the Quickship
Program. This provides rapid delivery of standard products so that tight project deadlines can be met and downtime on replacement work can be held to a minimum. Delivery options may include: 5 and 10 day shipments.
Optisizer Fan Selection Program
Please refer to Breidert Optisizer Program for fan curve, submittal information and other details of this series and other Breidert products. Contact you representative or factory for a copy. Log onto Breidert's web site for additional information at: www.breidert.com.
All specifications are subject to change without notice unless approved
in submittal by Breidert Air Products.
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