Specification Sheet

306
MODEL LC - CONSTRUCTION LEVEL 1
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 pres-
sure. 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, distribu-
tion 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 specication.
When suspended from the ceiling, thus keeping oor 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.
Construction/Specication 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 prepunched mounting holes for easy installation.
PROPELLER: Blades shall be die formed galvanized G90 steel of mini-
mum 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 nonstatic oil and
heat resistant V-belts.
BEARINGS: All bearings shall be self-aligning cast iron pillow block
type with relube tting 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
specied voltage, phase and enclosure. All motors shall be mounted
and factory run tested.
Fan
Size
Material (Ga. or inches)
Shaft
Diameter
(in.)
Max
Motor
Frame
Size
Avg.
Weight
(lbs.)
Fan
Panel
Drive
Frame
Motor &
Bearing
Supports
Propeller
Spider Blade
Steel Steel
20 18 16 16 14 18 3/4 56H 85
24 16 12 12 10 16 1 145T 90
30 16 12 12 10 16 1 145T 100
36 16 12 12 7 16 1 145T 105
42 16 12 12 7 14 1 145T 110
48 16 12 12 7 14 1 145T 125
54 14 12 12 1/4 12 1 3/16 182T 240
60 14 12 12 1/4 12 1 3/16 182T 285
R
®
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
AIR
PERFORMANCE
SOUND
and
Standard 705
(Optional)
DIMENSIONS
Fan
Size
A
Sq
B C D E F
Damper
O.D. Sq
Flange
20 24 2 5 1 1/4 15 23 22 1/2
24 30 2 7 1/2 1 1/4 15 23 28 1/2
30 36 2 7 1/2 1 1/4 15 24 34 1/2
36 42 2 7 1/2 1 1/4 15 24 40 1/2
42 48 2 7 1/2 1 1/4 16 24 46 1/2
48 54 2 7 1/2 1 1/4 16 24 52 1/2
54 60 2 7 1/2 1 1/4 20 26 58 1/2
60 66 2 7 1/2 1 1/4 20 26 64 1/2
Dimensions shown in inches.
EXHAUST
Motor Service Factor
Motor service factors are utilized in some performance selec-
tions 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.
2 year fan housing warranty, 1 year motor warranty
MODELS LCE/LCS, L2E/L2S, L3E/L3S
BELT DRIVE SIDEWALL PROPELLER FANS