MODEL L2 - CONSTRUCTION
LEVEL 2
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PDF con características
técnicas del producto.
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MODEL LC - CONSTRUCTION LEVEL 1
MODEL L2 - CONSTRUCTION LEVEL 2
MODEL L3 - CONSTRUCTION LEVEL 3
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Application
Models LE (exhaust) and LS (supply) are high capacity wall mounted belt driven propeller fans rated from 5000 to 47,000 CFM and to 1.0" w.g. static pressure. Their primary application is the exhaust of large volumes of ventilation air from commercial and light industrial buildings such as manufacturing
and assembly plants, warehouses, parking garages, gymnasiums, equipment rooms, distribution centers and OEM applications.
Wall mounting provides an easy and economical installation. All necessary accessories are available. Belt driven fans provide large volumes of air at low fan speed and low noise levels and afford quick, easy performance adjustments.
See Model L - Construction level 3 for higher static pressures and heavier construction designs or models LC for your lighter duty ventilation requirements (see pages 2 and 4).
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 G90 galvanized (optional
aluminum) with spun one piece venturi. Motor and bearing plate shall be a minimum of 10 gauge G90 galvanized steel. 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 bolted to a welded, structural steel hub plate and keyed to the fan shaft. Blades shall incorporate multiple laminations for 3 horsepower motors and larger. Propeller assembly shall be statically
balanced. |
DRIVES: All sheaves shall be sized to a minimum 150% of driven horsepower, machined cast iron adjustable pitch (through 3HP), 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 bearings shall be self-aligning cast iron pillow block type with re-lube fitting and of the air handling design. 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 utilized in some performance selections shown. This is a safe and common industry practice that provides more performance for the investment. BHP is shown 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 usage. 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 |
