www.trianglefans.com • 1-800-255-9014
TRIANGLE ENGINEERING
OF ARKANSAS, INC.
UPBLAST and HOODED FANS
INSTALLATION, OPERATING AND MAINTENANCE
INSTRUCTIONS FOR ALL PANEL FANS
UPBLAST HOODED
This data sheet provides proper installation and
maintenance instructions. Proper installation, operation and
maintenance will assure efficient and dependable performance. Improper use or installation may result in personal
injury or property damage. Trained and experience personnel
should perform the installation according to manufacturer’s
instructions and in compliance with federal, state and local
government requirements.
RETAIN THIS DATA SHEET FOR FUTURE REFERENCE.
READ ALL INSTRUCTIONS THOROUGHLY BEFORE
PROCEEDING.
RECEIVING HANDLING AND STORAGE
Upblast and Hooded Fans have been carefully inspected
before leaving the factory. When the unit is factory balanced,
all components (propeller, shaft, bearings, etc.) have been
tested prior to shipment. Units have been given an operating
and running test before leaving the factory. Units which are
mishandled can void the warranty provisions. If units have
been damaged in transit, it is the responsibility of the receiver
to make all claims against the carrier, Triangle Engineering is
not responsible for damages incurred during shipment.
Units should be handled with care to prevent possible
damage. Avoid jarring and/or dropping. Units which are
supplied with special painted or coated finishes should be
handled with care to protect the surfaces. If the continuity of
the coating is scratched and damaged due to mishandling, the
protective coating may be adversely affected.
Long term storage requires special attention. All units
should be stored on a level, solid surface (preferably indoors).
If outdoor storage is necessary, provide protection against
moisture and dirt. Protect all bearings and shafts with
lubricant and encase the entire unit in plastic or some
similar weatherproof material. To prevent deterioration of
lubricants, special finishes, etc., periodic inspections should
be made. During these inspections, it is good practice to
rotate the propeller by hand to spread bearing lubrications.
It is advisable to remove V-belts if units are stored for an
extended period of time. V-Belts which remain under tension
in a stationary position for extended periods are likely to have
reduced operating life.
INSTALLATION
INSTALLING THE LOUVER DAMPERS: When required,
dampers should be installed prior to mounting the unit on the
curb. Dampers must be secured without undue twisting which
may distort louver frame. Louver frame must be reasonably
level on all sides. Check for free operation. If louvers are motor
operated type, ascertain that proper voltage is impressed on
motor terminals.
ANCHORING OR SECURING THE VENTILATOR:
Whenever possible anchoring should be accomplished by
fastening through the vertical portion of the mounting flange.
The type, size and number of fasteners depends upon the unit
size and curb construction. If fastening is prescribed by code
or specification to be done through top (horizontal portion)
of mounting flange, then neoprene or lead washers should
be used under the head of each fastener. LARGE UNITS
INSTALLED ON TALL BUILDINGS OR IN AREAS SUBJECT
TO HIGH WINDS REQUIRE ADDITIONAL FASTENING
WITH GUY WIRES. If the contractor removes ventilator parts
to facilitate installation and electrical connections, all parts
should be reassembled by replacing all spacers, washers,
nuts, bolts, fasteners and components exactly as they were
found prior to removal. All fasteners are to be drawn tight and
secure. The ventilator is now ready for service.
CHECK LIST
If heater elements are tripping out the starters, the following
items should be investigated:
Is the heater element the correct size for motor?
Is the starter located in a high ambient temperature?
Is the propeller rotating in the correct direction?
Is the line voltage excessively low?
Is the motor wired properly to suite the line voltage?
The ventilator has been checked at the factory prior to
shipment for mechanical noises. If mechanical noise should
develop then some suggestions are offered here as a guide
toward remedying the cause.
Check rotating members for adequate clearance.
Check proper belt tension and pulley alignment.
Check installation and anchoring.
Check fan bearings.
START-UP AND OPERATION
Careful inspection should be made before start-up. All motor
bearings should be properly lubricated, all fasteners should be
securely tightened. Impeller should be rotated by hand to insure
free movement. (NOTE: Before placing hand on propeller, or
V-belts local out primary and secondary power source). Check
all set-screws and keys. Tighten where necessary.
The condition of V-belts and the amount of belt tension
should be checked prior to start-up. When it becomes
necessary to adjust belt tension, do not over-tighten as
bearing damage will occur. Recommended belt tension
should permit 1/64" per inch of span deflection of the belt on
each side of the belt measured halfway between the pulley
centerline. Extreme care must be exercised when adjusting
*Deflection height = 1/64" per inch of span
BELT AND PULLEY ALIGNMENT
WRONG WRONG CORRECT
V-belts as not to misalign the pulleys. Any misalignment will
cause a sharp reduction in belt life and will also produce
squeaky, annoying noises. On units equipped with 2 or 3
groove pulleys, adjustments must be made so that there is
equal tension on all belts (see drawing below).
WARNING - Whenever belts are removed or installed,
never force belts over pulleys without loosening motor first to
relieve belt tension. The fan has been checked at the factory
prior to shipment for mechanical noises. If mechanical noise
should develop, then some suggestions are offered here as a
guide toward remedying the cause.
1. Check rotating members for adequate clearance.
2. Check proper belt tension and pulley alignment.
3. Check installation and anchoring.
4. Check fan bearings.
The inlets and approaches to the exhauster should be
free from obstructions. To assure maximum air movement
adequate supply air must be available.
Power lines compatible with the motor requirements are
brought up from an electrical source to the unit. A generous
amount of slack in power lines should be provided to allow for
motor deflections and to permit movement of motor for belttension adjustments. Motor must be securely and adequately
grounded. Protect power lines from sharp objects. Do not
kink power line or permit it to contact hot surfaces, chemicals,
grease or oil.
Before putting any fan into operation, the following check
list should also be completed:
a. Lock out primary and secondary power source. b. Make
sure installation is in accordance with manufacturer’s
instructions.
c. Check and tighten all fasteners. d. Spin propeller to see
if rotation is free and does not bind or rub.
e. Check all set-screws and keys and tighten if necessary.
f. Check V-belt or direct drive coupling for alignment. Use
recommended belt tension.
g. Check V-belt for proper sheave selection and make sure
they are not in reverse position.
h. Make sure there is no foreign loose material in duct work
leading to and from fan or in the fan itself.
j. Properly secure all safety guards.
k. Secure all access doors to fan and duct work.
I. Check line voltage with motor nameplate.
m. Check wiring. (NOTE: On single phase motors, the
terminal block must be set up in accordance with the
nameplate instructions and/or wiring diagram. The set-up
must match the line voltage. If the motor is 3 phase, the
winding leads must be grouped and connected as shown
on the wiring diagram. The line voltage must correspond
with proper grouping of motor leads. On 2-speed motors
the wiring diagram must be followed precisely or serious
motor damage will occur.)
Switch on electrical supply and allow fan to reach full
speed. If heater elements are tripping out the starters, the
following items should be investigated:
Is the heater element the correct size for the motor?
Is the starter located in a high ambient temperature?
Is the propeller rotating in the correct direction??
Is the line voltage excessively low?
Is the motor wired properly to suit the line voltage?
Check carefully for:
1. Correct rotation of the propeller (NOTE: Incorrect rotation
overloads motor severely and results in serious motor
damage. To change rotation of 3 phase units, simply
interchange any two of the three line leads. On single
phase units, change the terminal block set-up following
the wiring diagram).
2. Check motor and bearing temperatures so that they are
not excessively hot. (NOTE: Use care when touching
the exterior of an operating motor. Modern motors
normally run hot. They are designed to operate at higher
temperatures. This is a normal condition, but they may
be hot enough to be painful or injurious to the touch.) If
any problem is indicated, SWITCH OFF IMMEDIATELY.
Lock out the electrical supply and check carefully for the
cause of the trouble and correct as needed. Even if the
fan appears to be operating satisfactorily, shut down after
a brief period and check all fasteners, set-screws and
keys for tightness.
The fan may now be put into operation but during the first
eight (8) hours of running it should be periodically observed and
checked for excessive vibration or noise. At this time checks
should be made on motor input current and motor bearing
temperatures to insure they do not exceed manufacturer’s
recommendations. After eight hours of satisfactory operation,
the fan should be shut down and the electrical power locked
out to check the following items and adjust if necessary:
a. All set-screws, keys and fasteners.
b. Drive coupling alignment.
c. V-belt drive alignment.
d. V-belt tension.
NOTE
• Care should be taken to follow all local electrical, safety
and building codes.
• Provisions of the National Electrical Code, as well as the
Occupational Safety and Health Acts should be followed.
• All motors are checked prior to shipment; however, if motor
defects should develop, prompt service can be obtained
from the nearest authorized service station of the Motor
Manufacturer while under warranty. Exchange, repair or
replacement will be provided on a no charge basis if the
motor is defective within the warranty period. The Triangle
Engineering representative in your area will provide a name
and address of an authorized service station if requested.
Do not return defective motors to Triangle Engineering.
WARNING: Motor guarantee is void unless overload
protection is provided in motor wiring circuit.
MAINTENANCE
Do not attempt any maintenance on a fan unless the
electrical supply has been completely disconnected. If a
disconnect switch has not been provided, remove all fuses
from the circuit and lock the fuse panel so they cannot be
accidentally replaced.
Lubrication is a primary maintenance responsibility. All
bearings should be checked periodically. V-belts also, should
RECOMMENDED LUBRICANTS
MANUFACTURER
Chevron
Gulf
Imperial Oil
Shell
Sun Oil
Texaco
Gulf
Imperial Oil
Shell
Sun Oil
Texaco
PRODUCT NAME
SRI-2
Gulfcrown EP-1
Unirex EP-1
Alvania R-2
Sunaplex IEP
Regal AFB2
Gulfcrown EP-2
Unirex EP-2
Alvania R-3
Sun Prestige 42 grease
Regal AFB-2
TEMP. RANGE
Below
32°F. (0°C)
Range 32°F to
150°F (0°C to
66°C)
be inspected for tightness. If the fan is installed in a corrosive
or dirty atmosphere, the propeller, inlet and other moving parts
should be cleaned periodically.
MOTOR LUBRICATION: In general, standard motors that
are furnished have prelubricated sealed-for-life ball bearings
which require no lubrication for seven to ten years of normal
service. In cases where motors have been ordered with
greasable bearings, these bearings have been lubricated at
the factory and do not require any attention for one year under
normal conditions. If the particular motor is equipped with
grease relief fittings, these should be removed to allow old
grease to flow out when maintenance is performed. Whenever
possible, grease should be applied while the motor is running.
This practice should not supersede any safety consideration.
DO NOT OVER GREASE - as most lubricants deteriorate
motor windings, thereby reducing motor life.
FAN SHAFT LUBRICATION: Fan shaft ball bearings are
furnished in either the pre-lubricated sealed-for-life type or
the greasable type depending on what was ordered. Here
again, the pre-lubricated type requires no servicing for seven
or ten years of normal use, and the greasable type are factory
greased eliminating the need for greasing initially. Whenever
grease is required, depending on the lubricating schedule,
it should be applied while the shaft is rotating. This practice
should not supersede any safety considerations.
IMPORTANT: Use low pressure grease guns only. High
pressure guns tend to blow out or unseat bearing seals, leaving
the bearing open to collect grime, dust and foreign particles.
LUBRICATION SCHEDULE:
a. Under average conditions where ambient temperatures do
not exceed 120°F., lubrication is required once or twice
a year.
b. Under a dirt laden atmosphere where there is a tempera-
ture range from 10°F. to 120°F., lubrication is required
from three to six times a year.
c. Under extreme temperature conditions and extremely dirty
atmospheres, lubrication should be scheduled at least
once or twice a month.
PARTS REPLACEMENT: If replacing parts, do so with
properly selected components, which duplicate original parts
correctly. Incorrectly sized shafts, belts, pulleys, propellers,
etc. can damage the fan.
SPECIAL PURPOSE SYSTEMS
Explosive, corrosive, high temperature, etc. conditions may
require special construction, inspection and maintenance. It is
necessary to observe the fan manufacturer’s recommendations
and limitation concerning the type of material to be handled by
the fan and its application to special conditions.
THE HIDDEN DANGER
In addition to the normal dangers of rotating machinery,
fans present an additional hazard in their ability to suck in
not only air, but loose material as well. Solid objects can
pass through the fan and be discharged by the propeller as
potentially dangerous projectiles. Intake to duct work should,
whenever possible, be screened to prevent the accidental
entrance of solid objects.
Access doors to a duct system should never be opened
TRIANGLE ENGINEERING OF ARKANSAS, INC.
1101 N. Redmond Rd., Jacksonville Arkansas 72076
www.trianglefans.com • 1-800-255-9014 • Fax (501) 982-5691
when the fan is running. On the downstream (or pressure)
side of the system, releasing the door with the system
in operation may result in an explosive opening. On the
upstream (or suction) side, the inflow may be sufficient to
suck tools, clothing, etc., and may even cause a man to lose
his balance.
When a fan is being started for the first time, a complete
inspection of the duct work and interior of the fan should be
made (with the power locked off), to make certain there is no
foreign material which can be sucked into or blown through
the duct work.
FAN GUARDS, INLET and OUTLET GUARDS,
DRIVE GUARDS
All fans have moving parts which require guarding in
the same way as other moving machinery. In areas which
are accessible only to experienced personnel, a standard
industrial type guard may be adequate. This type of guard
will prevent the entry of thrown or dropped objects with a
WARRANTY
WARRANTY Upon payment of this invoice in full, the seller
warrants those goods manufactured by it and sold hereby to
be free of defects in material and workmanship only if properly
installed, cared for, and operated with competent supervision
under normal conditions as specified to us in writing. The seller’s
obligation under this warranty is limited to replacing or repairing
at its option and at its own factory any defective part or parts
thereof which shall, within one year after shipment by it to the
original purchaser, be returned to its factory with transportation
charges prepaid. Upon such repair or replacement all obligations
under this warranty shall be deemed fulfilled and terminated.
Triangle Engineering makes no warranty whatsoever in respect
to parts or accessories not supplied by or installed by Triangle
Engineering. The seller shall not be liable for any loss or damage
whatsoever to any person, firm, or corporation, and shall not
be liable or responsible for any repairs made outside of its own
factory. There are no other warranties or representations, express
or implied, made or effective upon this sale The above warranty
supersedes and is in lieu of all other warranties express or
implied which extend beyond the description contained herein. No
person, firm, corporation, agent, or dealer is authorized to make
any warranties on behalf of Triangle Engineering nor to assume
for Triangle Engineering any liability in connection with any of
Triangle Engineering’s products.
All quotations are subject to acceptance within sixty (60) days.
minimum restriction of air flow.
Where the fan is accessible to untrained personnel or
the general public, maximum safety guards should be used,
even at the cost of some loss of performance. Fans located
less than 7’ above the floor require special consideration as
specified in the Occupational Safety and Health Act. Roof
mounted equipment will require guards when access is
possible, for example, by climbing children.
Upblast and hooded fans may be connected directly to
ductwork which will prevent contact with the internal moving
parts, but when the inlet or outlet is exposed, a suitable
guard should be installed. Accordingly, roof openings for
Upblast and Hooded Fans can be easily and neatly fitted
with framed safety guards.
Fans may be driven from the motor shaft or through a belt
drive. In every case where the bearing assembly, rotating
shaft, sheaves or belts are exposed, a suitable guard should
be provided.
Prices in quotation covering Triangle Engineering’s manufactured
products are firm for one year from date of order. All orders are
subject to approval by Triangle Engineering of Arkansas, Inc.
All customer purchase orders are hereby made subject to the
provisions of this acceptance and the seller’s failure to object
to provisions contained in customer’s purchase orders or other
communications shall not be deemed a waiver of the terms
and conditions hereof nor acceptance of such provisions. No
representations or guarantees other than those contained herein
shall be binding upon Triangle Engineering unless made in writing
and signed by an official of Triangle Engineering.
NOTICE The Purchaser agrees, in exchange for the pricing
schedules used in this transaction, that any litigation of any
nature arising from this transaction, or in any other way related
to the relationships involved herein shall be exclusively subject
to venue, in personam and subject matter jurisdiction in any
other court or courts in any other county or state are hereby
waived; further, any transaction in which the Purchaser is a
corporation, other than a corporation with publicly traded stock,
is recognized to include the guaranty of performance from and by
the principal shareholders thereof whose authorization of such
guaranty is represented to have been secured prior to the first and
subsequent transaction and which guaranty is evidenced through
the corporation’s purchase.
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