Acme Engineering USBG Installation Manual

FORM 613117

Read and Save These Instructions

INSTALLATION & MAINTENANCE INSTRUCTIONS

Models UBG and USBG

RECEIVING AND INSPECTION

Immediately upon receipt of a shipment, carefully inspect for
damage and shortage. Turn propeller by hand to see that it turns
freely and does not bind. If any damage and/or shortage is
detected or suspected the carrier must be asked to conduct an
inspection. The consignee’s representative should not accept
shipment without a notation on the delivery receipt indicating
items not delivered or apparent extent of damage.

When a shipment is opened and damage is found which was not
evident externally (concealed damage), it is mandatory that the
consignee request an immediate inspection by the carrier. Report
damage to the carrier within 15 days. Failure to report damage
within the above time limit will cause rejection of a claim.

HANDLING

When handling fans and their accessories, always use equipment
and methods that will not cause damage. Fans should be lifted
using slings and padding or spreaders to avoid damage.

CAUTION! Always make sure that all lifting and handling
equipment and techniques conform to current safety standards.

Avoid lifting fans in a way that will bend or distort fan parts. Never
pass slings or timbers through the orifices of fan.

CAUTION! Do not lift by the fan hood. Fans with special coatings
or paints must be protected in handling to prevent damage.

STORAGE

Fans are protected against damage during shipment. If they
cannot be installed and put into operation immediately upon
receipt certain precautions are necessary to prevent deterioration
during storage. Responsibility for integrity of fans and
accessories during storage must be assumed by the user. The
manufacturer will not be responsible for damage during storage.
These suggestions are provided solely as a convenience to the
user, who shall make his own decision as to whether to use any or
all of them.

INDOOR: The ideal storage environment for fans and
accessories is indoors, above grade, in a low humidity
atmosphere which is sealed to prevent the entry of blowing dust,
rain, or snow. Temperatures should be evenly maintained at
between 70°F and 105°F (wide temperature swings may cause
condensation and "sweating" of metal parts). Windows should be
covered to prevent temperature variations caused by sunlight.
Provide thermometers and humidity indicators at several points
and maintain the atmosphere at 40% relative humidity, or lower.

It may be necessary to use trays of renewable desiccant or
portable dehumidifier to remove moisture from the air in the
storage enclosure.

Thermostatically controlled portable heaters (vented to outdoors)
may be required to maintain even temperatures inside the
enclosure.

equipment against firedamage. Be sure that building andstorage
practices meet all local, state and federal fire and safety codes.

The following fans or accessories must be stored indoors, in a
clean dry atmosphere:

a. Propeller wall fans not in wall housings.

b. Any fan protected by a cardboard carton.

c. Motors dismounted from fans.

d. Spare wheels or propellers.

e. Belts, sheaves, bushings and other parts when not

mounted on fan.

f. Boxes, bags or cartons of hardware.

g. Curbs

h. Dampers

Remove any accumulations of dirt, water, ice or snow and wipe
dry before moving indoor storage. Allow cold parts to reach room
temperature to avoid “sweating” of metal parts. Open boxes or
cartons. Remove any accumulated moisture; if necessary use
portable electric heaters to dry parts and packages. Leave
coverings loose to permit air circulation and to permit periodic
inspection.

Rotate wheels or propellers by hand to distribute bearing grease
over the entire bearing surfaces.

Store at least 3 ½” off the floor on wooden blocks covered with
moisture proof paper or polyethylene sheathing. Provide aisles
between parts and along all walls, to permit air circulation and
space for inspection.

OUTDOOR: Fans designed for outdoor use may be stored
outdoors, if absolutely necessary. The storage area should be
reasonably level and drained or ditched to prevent accumulation
of water. Fencing and lighting for security aredesirable. Roads or
aisles for portable cranes and hauling equipment are needed.
Consider the use of drift fencing to minimize accumulation of
blowing snow or dirt.

The following fans may be stored outdoors, if dry indoor storage
space is not available:

a. Fans intended for outdoor use that are crated in wood.

b. Wall fans installed in wall housings.

All fans must be supported on wooden blocks or timbers above
water or normal snow levels. Provide enough blocking to prevent
settling into soft ground. Fans should be set in place using the
directional arrow markings on the crate as a guide.

Locate pieces far enough apart to permit air circulation, sunlight,
and space for periodic inspection. Place all parts on their
supports so that rain water will run off, or to minimize water
accumulation. Do not cover parts with plastic film or tarps-these
cause condensation of moisture from the air passing through
heating and cooling cycles.

CAUTION! Provide fire extinguishers, or fire alarms, or
emergency response communication to protect building and

Fan wheels and propellers should be blocked to prevent spinning
caused by strong winds.

INSPECTION AND MAINTENANCE DURING STORAGE

Inspect fans and accessories at least once per month, while in
storage. Log results of inspection and maintenance performed.
A typical log entry should include the following:

a. Date

b. Inspector’s Name

c. Name of Fan

d. Location

e. Condition of Paint or Coating

f. Is moisture present?

g. Is dirt accumulated?

h. Corrective steps taken?

If moisture or dirt accumulations are found on parts, the source
should be located and eliminated. Fans should be rotated at
each inspection by hand ten to fifteen revolutions to redistribute
the motor and bearing lubricant.

If paint deterioration begins, consideration should be given to
touch-up or repainting. Fans with special coatings may require
special techniques for touch-up or repair.

Machined parts coated with rust preventive should be restored
to good condition promptly if signs of rust occur. The most
critical items are pulleys, shafts and bearing locking collars. At
the first sign of rusting on any of the above parts, remove the
original rust preventivecoating with petroleum solvent and clean
lint-free cloths. Polish any remaining rust from surfaces with
crocus cloth or fine emery paper and oil. Do not destroy the
continuity of the surfaces. Wipe clean with lint-free cloths and
recoat surfaces evenly and thoroughly with Tectly 506 (Ashland
Oil Company) orequal. For hardto reach internalsurfaces or for
occasional use, consider using Tectly 511M Rust Preventive or
WD40 or equal.

REMOVING FROM STORAGE

As fans are removed from storage to be installed in their final
location, they should be protected and maintained in similar
fashion, until the fan equipment goes into operation.

INSTALLATION

1.

CAUTION! This unit has rotating parts and safety
precautions should be exercised during installation,
operation and maintenance.

2.

WARNING! The fan/duct system can be operated only in
the steady flow regime to avoid serious damage to its
parts due to the pressure pulsations in the system.

3. On larger units, when windband is shipped separately, be
sure to prevent lids from blowing open until windband is
installed.

4.

WARNING! If gases, other than clean air, are to be
exhausted using the fan, then the user bears the
responsibility of determining that the fan is appropriate
and safe for the application.

5.

WARNING! Do not use in hazardous environments
where the fan’s electrical system could provide ignition to
combustible or flammable materials, unless unit is
specifically built for hazardous environments.

Table 1.

Required Square Openings in the Roof

for the UBG Fans

Fan Model and Size

UBG24 28.5 31.5

UBG30 34.5 37.5

UBG36 40.5 43.5

UBG42 46.5 49.5

UBG48 52.5 55.5

UBG54 58.5 61.5

UBG60 64.5 67.5

UBG72 82.5 85.5

6. Before starting, check all fasteners for tightness;
particularly in the propeller hub. Turn the propeller by
hand to make sure it is in alignment with the orifice and
fan blades do not strike.

7. Units should be checked for pulley alignment and belt
tension. Belt should depress its width when pressed
firmly inward at midway point between the pulleys.

8.

CAUTION! Before proceeding, make sure electrical
service to fan is locked in the “OFF” position.

9. All wiring should be in accordance with local ordinances
and the National Electric Code.

10.

WARNING! Check voltage at the fan to see if it
corresponds with the motor nameplate. High or low
voltage can seriously damage the motor. Extra care
should be taken when wiring two speed motors since
improper connections will damage motor and void motor
warranty. Leave enough slack in wiring to allow for motor
movement when adjusting belt tension.

11. Apply power momentarily and compare the rotation of the
impeller with the directional arrow on fan. In the case of
three phase motors, the direction can be changed by
interchanging any two of the three motor leads. In the
case of single phase motors, the reversing instructions
will appear on the wiring diagram in the motor wiring
compartment.

12. Using a minimum of eight (8) lag bolts, two (2) on each
side near corners, securely fasten fan to curb. Fasten all
bolts securely. The fan should rest on the curb as level
as possible.

13. The square opening in the roof on which the fan is
mounted has to have sides within the minimum and
maximum lengths specified for the fan size in Table 1.
Only a shutter, louver or an inlet guard can be installed in
the opening. No other objects can be located in the
opening or in front of the opening closer than the size of
the opening.

14. If the fan operates at speeds below 600 rpm, it is
recommended to check the dynamic interaction of the
operating fan(s) with the supporting structure.

15.

CAUTION! Guards must be installed when fan is within
reach of personnel or within eight (8) feet (2.5 m) of
working level or when deemed advisable for safety.

Dimension of opening (in.)

Minimum Maximum

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