TCF MPLFN Installation, Operation & Maintenance Manual

Twin City Fan
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.
Contents
Introduction.................................................................................... 1
Shipping and Receiving .................................................................. 1
Handling ......................................................................................... 2
Short Term Storage ......................................................................... 2
Long Term Storage .......................................................................... 2
Foundations and Supporting Structures ........................................2
Fan Installation ............................................................................... 3
Assembly of Fans ............................................................................ 3
Electrical Wiring of Fans ................................................................. 4
Fan Operation - Safety ................................................................... 4
Operation Checklist ........................................................................ 4
Maintenance of Fans ...................................................................... 5
General Motor Maintenance..................................................... 5
Impeller and Shaft Maintenance ............................................... 5
Structural Maintenance ............................................................. 5
Troubleshooting Guidelines ........................................................... 5
Troubleshooting Performance Problems
Air Capacity Problems ............................................................... 5
Noise Problems ......................................................................... 5
Vibration Problems .................................................................... 5
Motor Problems ........................................................................ 6
Limitation of Warranties and Claims .............................................. 6

Introduction

The purpose of this manual is to provide instructions that complement
good general practices when installing or operating fans manufactured
by Twin City Fan & Blower. It is the responsibility of the purchaser to
provide qualified personnel experienced in the installation, operation
and maintenance of air moving equipment.
Instructions given in the body of this manual are general in nature and
apply to a variety of models manufactured by Twin City Fan & Blower.
Most units can be installed and maintained with the instructions given.
Additional product and engineering information is available at www.tcf.
com.
Modular Plenum Fans
(MPLFN, MPLFS, MPLQN, MPLQS)
INSTALLATION, OPERATION & MAINTENANCE MANUAL
©2014 - 2023 Twin City Fan Companies, Ltd.
Special applications may require additional information. These
instructions are supplied in the form of attached appendices. Use the
instructions in the appendix if the directions in this manual differ from
instructions in the appendix.
As always, follow good safety practices when installing, maintaining and
operating your air moving equipment. A variety of safety devices are
available. It is the user's responsibility to determine adequate safety
measures and to obtain the required safety equipment.

Shipping and Receiving

All Twin City Fan & Blower products are carefully constructed and
inspected before shipment to insure the highest standards of quality
and performance.
Compare all components with the bill of lading or packing list to verify
that the proper unit was received.
Check each unit for any damage that may have occurred in transit.
Any damage should be reported immediately to the carrier and the
necessary damage report filed.
Figure 1. Lifting Lug Locations
IM-495
April 2023
NOTE: When lifting, the straps/
chains should be at a minimum
angle of 45°
DETA
SCALE