PennBarry ROUND CENTREX Operation & Maintenance Manual
ROUND CENTREX
Centrifugal Inline Fans
OPERATION & MAINTENANCE MANUAL
IMPORTANT! Read before proceeding!
The information contained herein is, to the best of our knowledge, accurate and
applicable for proper operation and installation of the specied equipment at
the time this document entered service. Before proceeding, it is recommended
that you check for a more current version of this Installation Operation Manual
(IOM) on our website at www.pennbarry.com.
Read carefully before attempting to assemble, install, operate or maintain the
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or
property damage! Retain instructions for future reference.
TABLE OF CONTENTS
INTRODUCTION & INSTALLATION 3
START-UP AND OPERATION 4-5
MAINTENANCE 6
SPECIAL PURPOSE SYSTEMS, HIDDEN DANGER & GUARDS 7
PARTS REPLACEMENT 8
TROUBLESHOOTING CHECKLIST 9
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INTRODUCTION & INSTALLATION
Centrifugal Inline Fans feature motor compartment cooling to provide a long motor service life. Vanes on the motor housing serve
as a heat-sink and assist in dissipating any heat build-up. The entire operation assembly is oated on tubular supports. In belt drive
models, motors and drive pulleys are mounted on the exterior so they are readily accessible. An extra-deep spun venturi inlet mates
with a spun bottom wheel inlet plate. This smooth inlet condition ensures high capacity even at higher static pressures.
Centrifugal Inline Fan’s compact circular housing is compatible with round, oval, rectangular or square ducts. All these design
features, coupled with low outlet velocities, mean low operating noise levels with smooth, ecient airow.
PennBarry fans are carefully inspected before leaving the factory. When the unit is received, inspect the carton for any signs of
tampering. Inspect the unit for any damage that may have occurred during transit and check for loose, missing or damaged parts.
Mishandled units can void the warranty provisions. If units are damaged in transit, it is the responsibility of the receiver to make all
claims against the carrier. PennBarry is not responsible for damages incurred during shipment.
Avoid severe jarring and/or dropping. Handle units with care to prevent damage to components or nishes. If the unit is scratched
due to mishandling, the protective coating may be damaged. Incorrect lifting may damage the fan and void the warranty.
Storage
Long-term storage requires special attention. Store units on a level, solid surface, preferably indoors. If outside storage is necessary,
protect the units against moisture and dirt by encasing the cartons in plastic or in some similar weatherproof material. Periodically
inspect units and rotate wheels to spread bearing lubricant. Failure to rotate wheels results in reduced bearing life and may void
the manufacturer’s warranty. If the unit will be stored for an extended time, remove belts. Belts which remain under tension in a
stationary position for extended periods are likely to have a reduced operating life.
Unpacking
Place the carton in an upright position and remove the staples or use a sharp (knife edge) tool to carefully cut or scribe the sealing
tape on both sides at the top of the carton. Open carton aps. Remove any cardboard and wooden ller pieces, as well as loose
components or accessories shipped with the unit.
Carefully remove the unit from the carton. Inspect the unit for any damage that may have occurred during transit and check for
loose, missing or damaged parts.
Installation
Fans must be directly supported by building structure. Follow building’s blue prints carefully when installing.
Installing the Dampers
When required, dampers must be positioned and fastened to the duct or fan housing.
Positioning and Running Power Lines
Power is normally brought from within the building through proper conduit lines to the unit. It is then fed to the service switch,
if furnished, and motor. For belt driven units, lines can be fastened to the exterior of the unit housing with appropriate fastening
devices. For direct drive units, power lines are directed to the motor compartment through one of the motor cooling tubes for
connection to the motor terminals in an approved manner.
Anchoring and Securing the Ventilator
REX fans are designed for all angle mounting. Method of installation is dependent upon job conditions and may, under specic
circumstances, require support legs, angle supports or casing brackets. Vibration eliminators, where required, should be installed
jointly with the units. Flexible duct connectors are common accessories and, if used, should overlap the duct at least 2”.
Inasmuch as these units are cylindrical in shape, they will, in many cases, require transition pieces at both ends to connect to the duct.
The housing diameter and duct diameter need not be the same size or shape.
It is particularly important to remember that the venturi end is the inlet side of the unit. Position the unit so that the direction of
desired airow will be the same as the arrow on the unit. When the unit has been placed into its proper position, connect it to the
duct system. This can be accomplished through companion angle rings which enable the duct to fasten to the inlet and outlet ends
of the unit through angle rings provided at those points. When duct transitions are used, they can be connected directly to the
unit by bolting to mounting holes provided in the angle rings at the inlet and outlet ends of the unit and then to the duct work.
Appropriately sized fasteners should be used and drawn secure and tight. Correct fan wheel rotation should be in the direction of
the arrow axed to the unit designating rotation direction. Normally, the wheel should rotate clockwise when looking into the inlet
side of the unit.
To fulll our obligations towards Article 33, in accordance to European REACH Regulation No 1907/2006 EC, we hereby
inform you that this article contains the following Substances of Very High Concern mentioned on the Candidate list:
WARNING
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• Lead
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