Acme Engineering USDC Installation Manual
FORM 613091
Read and Save These Instructions
INSTALLATION & MAINTENANCE INSTRUCTIONS
Models DC & USDC
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 de
tected or suspected the carrier must be asked to conduct an in
spection. 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 bythe 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 equip
ment 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 equip
ment 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 toprevent damage.
STORAGE
Fans are protected against damage during shipment. If theycannot 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 sugges
tions 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 accesso
ries is indoors, above grade, in a low humidity atmosphere which
is sealed toprevent theentry of blowing dust, rain, or snow. Tem
peratures 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 pre
vent temperature variations caused by sunlight. Provide ther
mometers 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 porta
ble dehumidifier to remove moisture from the airin the storage en
closure.
Thermostatically controlled portable heaters (vented to outdoors)
may be required to maintain even temperatures inside the enclo
sure.
CAUTION! Provide fire extinguishers, or fire alarms, or emer
gency response communication to protect building and equip
ment against fire damage. Be sure that building and storage
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.
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e. Belts, sheaves, bushings and other parts when not mounted
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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 partsand packages. Leave cover
ings loose to permit air circulation and to permit periodic inspec
tion.
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 are desirable. 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 di
rectional 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 sup
ports so that rain waterwill run off, or to minimizewater accumula
tion. Do not cover parts with plastic film or tarps-these cause
condensation of moisture from the air passing through heating
and cooling cycles.
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
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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
preventive coating 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) or
equal. For hard to reach internal surfaces 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 lo
cation, they should be protected and maintained in similar fash
ion, 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! Do not use fans in hazardous environments
where the fan’s electrical system could provide ignition to
combustible or flammable materials, unless the unit is
specifically built for that hazardous environment.
3. 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.
the installer. Position box so the top panel slants down from
horizontal. Caulk between the top flanges and the wall (see
Fig. 2). Fan wall housing can also be attached to outside of
framed opening utilizing the mounting flanges.
Figure 2
SLANT WALL HOUSING DIMENSIONS
MODEL
EST.
WT.
lbs.
ABCDEF
In. In. In. In. In. In.
WS24DC 35 44.62 33.44 28.07 28.93 31.50 31.50
WS30DC 42 50.50 35.32 34.07 35.32 25.67 37.43
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WS36DC 46 54.81 35.61 40.07 41.36 23.77 43.50
WS42DC 53 61.11 38.24 46.07 47.67 25.07 49.30
WS48DC 78 70.06 42.70 54.06 55.92 27.85 57.21
Dimensions shown are for a 4.00" wall (or less). For other wall dimensions
refer to the Installation Instructions.
7. Mount automatic damper to inside of fan wall housing by
inserting bottom edge of damper behindthe bottom damper
angle with the top edge ofdamper in front of the top damper
angle (see Fig. 3) and then securing with the snap clips on
the top damper angle. An optional inside guard can be
mounted with the damper in the same manner.
8. Continue with Step 16.
4. 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.
INSTALLATION WITH SLANT WALL HOUSING
5. To install a fan mounted in a galvanized steel slant wall
housing when the wall thickness is 4" or less, provide a
rectangular opening in the wall equal to dimension in Fig. 1.
It is preferable to frame the opening with 2 X 4 material,or a
metal frame in metal building or greenhouses. When the
wall thickness is more than 4", the height of the rectangular
opening should be 1 inch less than the height shown in Fig.
1 and the opening should be slanted approximately 15° as
shown in Fig. 2. Note: If wall thickness is less than 4”
framed opening height can be reduced 1/4” for each inch
less than 4” thick.
FAN
SIZE
WALL
HOUSING
MODEL
WT
lbs.
24 WS24 35 28
30 WS30 42 34
36 WS36 46 40
42 WS42 53 46
48 WS48 78 54
54 WS54 106 60
Figure 1
FRAMED OPENING
DINEN. FOR 4” WALL
WIDTH HEIGHT
In. In.
3
4
3
4
3
4
3
4
3
4
3
4
30
36
42
49
57
63
3
4
1
2
3
4
1
4
1
2
6. Slide the fan wall housing through the inside of the framed
opening in the wall. Fasten with bolts or screws provided by
Figure 4
Figure 3
INSTALLATION WITH SQUARE WALL HOUSING
9. To install a fan mounted in a galvanized steel wall housing,
provide a square opening in the wall equal to the
dimensions in Fig. 5. It is preferable to frame in the opening
with 2 X 4 material, or a metal frame in metal buildings or
greenhouses.
10. Slide the fan wall housing through the inside of the framed
opening in the wall. Fasten with bolts or screws provided by
the installer. Position the box so the top panel, having both
sides turned down, is on top. Caulk between the top flanges
and the wall. Fan wall housing can also be attached to
outside of framed opening utilizing the mounting flanges.
11. Mount automatic damper to outside of fan wall housing with
number 14 x 5/8” self tapping hex headed cap screws
furnished. Insert top edge ofdamper frame under top flange
of fan box (see Fig. 4).
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