Loren Cook ACE-B User Manual

Typical Specifications

Model:

Description:

Certifications:

Construction:

Wheel:

Motor:

Bearings:

ACE-B

Fan shall be a spun aluminum, roof mounted, belt driven, downblast
centrifugal exhaust ventilator.

Fan shall be manufactured at an ISO 9001 certified facility
listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL

705). Fan shall bear the AMCA certified ratings seal for sound and air
performance.

The fan shall be of bolted and welded construction utilizing corrosion

resistant fasteners. The spun aluminum structural components shall be
constructed of minimum 16 gauge marine alloy aluminum, bolted to a rigid
aluminum support structure. The aluminum base shall have continuously
welded curb cap corners for maximum leak protection. The discharge
baffle shall have a rolled bead for added strength. A two piece top cap
shall have stainless steel quick release latches to provide access into the
motor compartment without the use of tools. An integral conduit chase
shall be provided through the curb cap and into the motor compartment to
facilitate wiring connections. The motor, bearings and drives shall be
mounted on a minimum 14 gauge steel power assembly, isolated from the
unit structure with rubber vibration isolators. These components shall be
enclosed in a weather-tight compartment, separated from the exhaust
airstream. Lifting lugs shall be provided to help prevent damage from
improper lifting. Unit shall bear an engraved aluminum nameplate.
Nameplate shall indicate design CFM, static pressure, and maximum fan
RPM. Unit shall be shipped in ISTA certified transit tested packaging.

Wheel shall be centrifugal backward inclined, constructed of 100 percent
aluminum, including a precision machined cast aluminum hub. Wheel inlet
shall overlap an aerodynamic aluminum inlet cone to provide maximum
performance and efficiency. Wheel shall be balanced in accordance with
AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans.

Motor shall be heavy duty type with permanently lubricated sealed ball
bearings and furnished at the specified voltage, phase and enclosure.

Bearings shall be designed and individually tested specifically for use in air

handling applications. Construction shall be heavy duty regreasable ball
type in a cast iron pillow block housing selected for a minimum L50 life in
excess of 200,000 hours at maximum cataloged operating speed

.

Fan shall be

.

Belts & Drives:

Product:

Belts shall be oil and heat resistant, non-static type. Drives shall be
precision machined cast iron type, keyed and securely attached to the
wheel and motor shafts. Drives shall be sized for 150 percent of the
installed motor horsepower. The variable pitch motor drive must be factory
set to the specified fan RPM.

Fan shall be model ACE-B as manufactured by
Loren Cook Company of Springfield, Missouri

.

10/20/03