Acme Engineering FN14D4 User Manual

CONSTRUCTION FEATURES
Models FN and FQ direct drive propeller fans are offered for commercial and industrial applications having low noise and high pressure requirements.
FQ FANS
These fans are designed to operate more quietly than conventional propeller fans and are recommended for ventilating applications desiring less fan noise. FQ fans are available in 10 sizes, 9" through 36" with a maximum capacity of 17,800 CFM.
Fan panels are constructed of steel and range from 18 to 16 gauge.
Aluminum blade thickness is from .050 to .125.
ADVANCED PROPELLER DESIGN
These propellers feature an advanced teardrop shape blade designed for exceptionally low noise level performance.
Aluminum blades are fastened to a formed steel hub with heavy duty oversize rivets. Propeller is precision balanced for smooth operation.
FN FANS
FN fans are designed to operate up to 1" static pressure with capacities to 22,400 CFM. Available in 9 sizes, 14" through 48”, these heavy duty fans are designed for industrial type applications where extra strength and durability are desired.
Fan panels are constructed of steel and range from 18 to 14 gauge.
The swept-back teardrop blade shape with its aerodynamic leading edge propels the air through the streamlined orifice with a minimum of air turbulence.
FQ not available with steel propeller.
HIGH PRESSURE PROPELLERS
For increased pressure requirements, FN propellers, depending on size and horsepower, have four or six tapered circular-arc airfoil blades. Standard construction is all welded heavy duty aluminum that is precision balanced. Non-overloading design prevents motor overload when operated within cataloged static pressure ranges. Optional steel prop is available for all FN fans, except size 48".
LICENSED RATINGS FOR SOUND AND AIR
Acme Engineering & Manufacturing Corp. certifies that the FQ and FN Propeller Fans shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.
The sound ratings shown are loudness values in fan sones at 5 feet in a hemispherical free field calculated per AMCA Standard
301. Values shown are for installation Type A: Free Inlet fan sone levels.
Most Acme FQ and FN fans are listed by the Canadian Standards Association Testing Laboratory as approved.
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CONSTRUCTION FEATURES
FAN PANEL - Construction of heavy
gauge steel. Wide flange on all four sides provides extra strength and rigidity to reduce the possibility of vibration and for a more secure installation. Standard finish is acrylic epoxy.
FQ09 AND 10
FQ12 THRU 18
EXHAUST MODELS FQ09 and 10
utilize the rugged motor side wire guard as the motor support means thereby making this guard standard equipment. Front (propeller side) guard is optional.
FQ09 and FQ10 are not available in reverse flow (supply).
STREAMLINED ORIFICE - Die formed
for uniformity, the deep streamlined orifice provides for high efficiency airflow throughout the propeller.
FN14 THRU 18
FQ21 THRU 36
EXHAUST MODELS FQ12 to 36 have the motor mounted on an all welded steel plate and formed pipe frame assembly for extra strength and rigidity. Front and back guards are optional on these sizes. FQ1210 and FQ129 are
not available in reverse flow (supply).
EASY TO INSTALL - Prepunched holes
in flange saves on installation time and cost.
MOUNT IN ANY POSITION - All motors are equipped with all-angle thrust ball bearings.
FN21 THRU 48
EXHAUST MODELS FN14 to 48 have the motor mounted on an all welded steel plate and formed pipe frame assembly for extra strength and rigidity. Front and back guards are optional on all sizes.
Supply fans are available in all models except FQ09, 10, 1210 and 129. The airflow capacity is the same as for exhaust type fans as shown on page 4.
REVERSE FLOW (SUPPLY) FANS
Only circular basket type guards are available with these fans.
When supply type fans are used with motorized wall dampers, it is recommended to use WAGC and
RESERVE MOTOR POWER - Fans are
designed with conservative motor loadings and efficient motor cooling to obtain longer motor life under continuous duty operation.
All motors are totally enclosed type with lubricated sealed ball bearings. All single phase motors have automatic resetting thermal overloads for low voltage protection.
Models FQ09, 10, 1210 & 129 use two speed tapped winding, single phase, shaded pole type ball bearing motors only.
WAGCH center pivot dampers. A time delay is recommended in the fan motor’s starter control circuit to allow the damper to fully open before the fan is activated.
All other models have split phase, capacitor start, capacitor run, or permanent split capacitor single phase motors. Some are available in two speed types.
Explosion resistant and three phase single speed motors are also available for some models. Consult your Acme Representative for more details plus availability of motors.
Single phase motors are resilient mounted in circular neoprene vibration isolators integral with the motor base.
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