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.
As always, follow good safety practices when
installing, maintaining and operating your air moving
equipment. A variety of safety devices is 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.
Handling
Handling of all air moving equipment should be conducted
by trained personnel and should be consistent with safe
handling practices. Verify the lift capacity and operating
condition of handling equipment.
Units shipped completely assembled may be lifted
with slings and spreader bars. Use well-padded chains,
cables or nylon straps. On most units, lifting lugs are
provided for attaching chains. Lift the fan in a fashion
that protects the fan and fan coating from damage.
Never lift a fan by the inlet or discharge flange, shafting
or drives, wheel or impeller, motor or motor base, or in
any other manner that may bend or distort parts.
If fan installation is to be delayed, store the unit in a
protected area. Protect the fan and motor bearings from
moisture and vibration (or shock loading). For extended
storage, wrap entire unit in plastic.
Extended storage requires monthly inspections. Check
for corrosion or damage to the unit and for debris within
the fan. Rotate the fan wheel a few revolutions. Stop the
wheel in a position other than the initial position. Grease
the bearings every month with a grease compatible with
the grease supplied with the bearings.
Foundations and Supporting Structures
Typical mounting arrangements are shown in Figures
4 and 5 on page 4. Floor mounted fans should be
installed on a flat, level, rigid concrete foundation.
They require the mass of the foundation to be at least
three times that of the fan assembly. The plan area
should be no more than twice that required by the
equipment. Foundations with larger areas should have
correspondingly larger mass. Anchor bolts should be “L”
or “T” shaped with sufficient length for nuts, washers,
shims, and threads for draw-down. Each bolt should be
placed in a sleeve or pipe with a diameter larger than
the bolt to allow for adjustment. When the mounting
surface and the surface of the fan base do not match,
shim or make allowance for grouting. Do not distort the
fan when tightening the anchor bolts.
©1991 – 2018 Twin City Fan Companies, Ltd.
ES-191
August 2014
Tubeaxial, Vaneaxial
& Duct Fans
INSTALLATION, OPERATION & MAINTENANCE MANUAL
Models
TCVA, TCTA, TCVS, TCTS & TCVX
Maintain handling equipment to avoid serious
personal injury.
CAUTION
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.
