MODEL LC - CONSTRUCTION
LEVEL 1
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MODEL LC - CONSTRUCTION LEVEL 1
MODEL L2 - CONSTRUCTION LEVEL 2
MODEL L3 - CONSTRUCTION LEVEL 3
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Application
Model LCE (exhaust) and LCS (supply) are high capacity belt driven propeller fans rated from 3,000 to 40,000 cfm to .625" w.g. static pressure. Their primary application is the exhaust or supply of large volumes of air at relatively low static pressures from commercial, light industrial and agricultural buildings such as manufacturing and assembly plants, warehouses, parking garages, gymnasiums, equipment rooms, distribution centers, poultry and greenhouses.
Wall mounting provides an easy, economical installation. Belt driven fans provide large volumes of air at low fan speeds and low noise levels and afford quick, easy performance adjustments. All necessary accessories are available to meet any need or specification.
When suspended from the ceiling, thus keeping floor spaces open, model LC can be installed to direct large volumes of air downward toward work centers improving employee comfort and productivity.
When mounted in portable housings with OSHA guards, Model
LC-P can be used as a mancooler and rolled to hot spots to provide needed employee relief from heat or fumes and help increase productivity.
Also see Model L with construction levels 2 and 3 for higher static pressure performances and heavier construction designs. (Pages 3 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 12 gauge galvanized steel except size 20. Panel end support frame assembly shall be of welded, not bolted, construction with pre-punched mounting holes for easy installation. |
PROPELLER: Blades shall be die formed galvanized G90 steel of minimum 16 gauge. Blades shall be bolted to an epoxy coated hub which is keyed to the fan shaft. 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 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 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. 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 |
