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General Installation, Operation and Maintenance Instructions For Aerovent Products
Throughout this manual, there are a number of HAZARD WARNINGS that must be read and adhered to in order to prevent possible
personal injury and/or damage to equipment. Two signal words "WARNING" and "CAUTION" are used to indicate the severity of a hazard
and are preceded by the safety alert symbol.
WARNING
Used when serious injury or death MAY result from misuse or failure to follow specific instructions.
CAUTION
Used when minor or moderate injury or product / equipment damage MAY result from misuse or failure to follow specific instructions.
NOTICE
Indicates information considered important, but not hazard-related.
It is the responsibility of all personnel involved in installation, operation and maintenance to fully understand the
Warning and
Caution procedures by which hazards are to be avoided.
Aerovent Catalog 340 provides additional information on this equipment. This catalog can be found at www.aerovent.com or by contacting
your local Aerovent sales representative.
Model SCBD
– 080A through 402A
Nomenclature
SCBD = Belt Driven Centrifugal Inline
SCDD = Direct Drive Centrifugal Inline
Square Inline
Centrifugal Fans
Model SCDD
– 080A through 165A
SCBD - 120 A HP
©2009 – 2022 Twin City Fan Companies, Ltd.
High Pressure
Design Vintage
Size
IM-167
May 2020
Model SCDD
Size 140X
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Summarization of Contents
Product Overview and Safety Information
Nomenclature
Explanation of model naming conventions and component identification for Aerovent fans.
Safety Warnings and Symbols
Defines hazard signal words (WARNING, CAUTION) and symbols used to indicate potential risks.
Installation Procedures
Receiving, Inspection & Unpacking
Steps for verifying equipment upon delivery, checking for damage, and unpacking components.
General Installation
Requirements for installing the fan unit by experienced personnel following applicable codes.
Electrical Connection
Detailed instructions for safe and proper electrical hookup, including wiring, voltage, and grounding.
Operation and Performance Tuning
Check, Test & Start Procedure
Critical steps for verifying fan rotation, voltage, ampere draw, and RPM before and during initial operation.
Speed Control Installation
Guidance for installing and configuring speed control for SCDD models, including minimum speed adjustments.
V-Belts (Model SCBD)
Procedures for checking and adjusting V-belt tension, alignment, and condition for belt-driven fans.
Maintenance and Troubleshooting
Fan Troubleshooting Chart
A comprehensive chart listing common fan problems and their potential causes for diagnosis.
Maintenance
Routine maintenance tasks for ensuring fan longevity, including lubrication, belt checks, and cleaning.
Specifications and Mounting Options
SCBD/SCDD Fan Dimensions
Detailed dimensional data for SCBD and SCDD models, essential for installation planning.
Mounting Brackets
Information on overhead and floor mounting brackets, including installation methods and considerations.
Side Discharge Option
Details regarding side discharge kits, configurations, duct openings, and installation procedures.
Administrative and Legal Information
Maintenance Record
A log for recording all maintenance activities performed on the fan unit.
Limitation of Warranties and Claims
Outlines the terms, conditions, and limitations of the product warranty and the claims process.
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Questions and answers