Accurex XRUBS Owner’s Manual

Document 470311

Model XRUBS

Steel Grease Fan

Installation, Operation and Maintenance Manual

Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.

Steel Grease Fan

These belt drive upblast centrifugal exhaust fans are specifically
designed for high grease applications.

The maximum continuous operating temperature is 400°F (204.4°C).
Fan is available in nine sizes, 140-200 HP with nominal wheel diameter
ranging from 14 to 20inches (356 to 508 mm). Each fan shall bear
a permanently affixed manufacturer’s embossed metal nameplate
containing the model number and individual serial number.

General Safety Information

Only qualified personnel should install this fan.
Personnel should have a clear understanding of these
instructions and should be aware of general safety
precautions. Improper installation can result in electric
shock, possible injury due to coming in contact with
moving parts, as well as other potential hazards. Other
considerations may be required if high winds or seismic
activity is present. If more information is needed,
contact a licensed professional engineer before moving
forward.

1. Follow all local electrical and safety codes, as well as
the National Electrical Code (NEC) and the National
Fire Protection Agency (NFPA), where applicable.
Follow the Canadian Electric Code (CEC) in Canada.

2. The rotation of the wheel is critical. It must be free
to rotate without striking or rubbing any stationary
objects.

3. Motor must be securely and adequately grounded.

4. Do not spin fan wheel faster than max cataloged fan
RPM. Adjustments to fan speed significantly affects
motor load. If the fan RPM is changed, the motor
current should be checked to make sure it is not
exceeding the motor nameplate amps.

5. Do not allow the power cable to kink or come in
contact with oil, grease, hot surfaces or chemicals.
Replace cord immediately if damaged.

6. Verify that the power source is compatible with the
equipment.

7. Never open access doors to a duct while the fan is
running.

DANGER

Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock or serious injury.

CAUTION

When servicing the fan, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.

CAUTION

Precaution should be taken in explosive atmospheres.

DANGER

Pour écarter les risques d’incendie, de choc électrique
ou de blessure grave, veiller à toujours débrancher,
verrouiller et étiqueter la source de courant avant
l’installation ou l’entretien.

ATTENTION

Lors de toute intervention sur la soufflante, le moteur
peut être suffisamment chaud pour provoquer une
douleur voire une blessure. Laisser le moteur refroidir
avant toute maintenance.

ATTENTION

Faire preuve de précaution dans les atmosphères
explosives.

Steel Grease Fan 1

Table of Contents

General Safety Information ...................... 1

Receiving, Unpacking, Handling, Storage,

Inspection and Maintenance During Storage,

Removing from Storage ......................2-3

Dimensional Data ............................. 3

Installation

Typical Roof Mounting ........................4

Commercial Kitchen .......................... 5

Grease Trap ............................... 5

Pre-Starting Checks ........................... 6

Operation .................................... 7

Inspection ...................................7

Maintenance .................................8

Belt and Bearing Maintenance ..................8-9

Recommended Bearing Lubrication .............. 9

Fan Inlet Conditions ........................... 9

Troubleshooting .............................. 10

Parts List ................................... 11

Our Commitment .......................Backcover

Figure 1

Screw

Figure 2

Hook with Safety Latch
(Supplied by others)

(2) Bearing Plate
Lifting Points

(4) Drive Frame Lifting Points

Screw

Receiving

Upon receiving the product, check to ensure all
items are accounted for by referencing the delivery
receipt or packing list. Inspect each crate or carton
for shipping damage before accepting delivery. Alert
the carrier of any damage detected. The customer will
make notation of damage (or shortage of items) on
the delivery receipt and all copies of the bill of lading
which is countersigned by the delivering carrier. If
damaged, immediately contact your representative. Any
physical damage to the unit after acceptance is not the
responsibility of the manufacturer.

Unpacking

Verify that all required parts and the correct quantity
of each item have been received. If any items are
missing, report shortages to your local representative to
arrange for obtaining missing parts. Sometimes it is not
possible that all items for the unit be shipped together
due to availability of transportation and truck space.
Confirmation of shipment(s) must be limited to only
items on the bill of lading.

Handling

When lifting the unit onto the roof, use either the four
lifting points on the drive frame or the two lifting points
on the bearing plate if present, see Figure1 for lifting
points. Access to the drive frame is accomplished by
removing the screws pointed out in Figure 2. The cover
can then be removed and placed on a flat surface in an
area protected from strong winds.

When the unit is on the roof, move fan to desired
location using lifting points and fasten securely
according to mounting details outlined in the Installation
section pertaining to your application. Shims may be
necessary depending upon roofing material thickness.

IMPORTANT

Do not lift by the fan hood. Avoid lifting fans in a way
that will bend or distort fan parts. Never pass slings or
timbers through the venturi of fan. Fans with special
coatings or paints must be protected in handling to
prevent damage.

The motor amperage and voltage ratings must be
checked for compatibility to supply voltage prior to
final electrical connection. Wiring must conform to local
and national codes. Consult local code authorities for
specific requirements.

Storage

Fans are protected against damage during shipment. If
the unit cannot be installed and operated immediately,
precautions need to be taken to prevent deterioration of
the unit during storage. The user assumes responsibility
of the fan and accessories while in storage. The
manufacturer will not be responsible for damage during
storage. These suggestions are provided solely as a
convenience to the user.

Indoor - The ideal environment for the storage of

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 between 30° to 110°F

(-1° to 43°C)

condensation and “sweating” of metal parts). All
accessories must be stored indoors in a clean, dry
atmosphere.

Remove any accumulations of dirt, water, ice, or snow
and wipe dry before moving to indoor storage. To avoid
“sweating” of metal parts, allow cold parts to reach
room temperature. To dry parts and packages, use
a portable electric heater to get rid of any moisture
buildup. Leave coverings loose to permit air circulation
and to allow for periodic inspection.

(wide temperature swings may cause

Steel Grease Fan2

The unit should be stored at least 3½ inches (89 mm)
off the floor on wooden blocks covered with moisture
proof paper or polyethylene sheathing. Aisles between
parts and along all walls should be provided to permit
air circulation and space for inspection.

Outdoor - Fans designed for outdoor applications

may be stored outdoors, if absolutely necessary.
Roads or aisles for portable cranes and hauling
equipment are needed.

The fan should be placed on a level surface to prevent
water from leaking into the fan. The fan should be
elevated on an adequate number of wooden blocks so
that it is above water and snow levels and has enough
blocking to prevent it from settling into soft ground.

Locate parts far enough apart to permit air circulation,
sunlight and space for periodic inspection. To minimize
water accumulation, place all fan parts on blocking
supports so that rain water will run off.

Do not cover parts with plastic film or tarps as these
cause condensation of moisture from the air passing
through heating and cooling cycles.

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

Inspection and Maintenance During
Storage

While in storage, inspect fans once per month. Keep a
record of inspection and maintenance performed.

If moisture or dirt accumulations are found on parts,
the source should be located and eliminated. At each
inspection, rotate the wheel by hand ten to fifteen
revolutions to distribute lubricant in motor. 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. Immediately remove the original rust preventive
coating with petroleum solvent and clean with lint-free
cloths. Polish any remaining rust from surface with
crocus cloth or fine emery paper and oil. Do not destroy
the continuity of the surfaces. Thoroughly wipe clean
with Tectyl

®

506 (Ashland Inc.) or the equivalent. For
hard to reach internal surfaces or for occasional use,
consider using Tectyl

®

511M Rust Preventive, WD-40®

or the equivalent.

Removing From Storage

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

Dimensional Data

B

C*

D

1¾ in. (44 mm)

A

Fan Size A B *C D

140, 140HP

160, 160HP,
160XP

180, 180HP

200, 200HP

• All dimensions are in inches (millimeters).

• Dimension “A” is the inside dimension of the curb cap. The roof
curb should be 1½ in. (38 mm) less than the curb cap to allow for
roofing and flashing.

* Dimension “C” may vary depending on motor size.

^ Approximate weight shown in pounds (kilograms) is the largest

cataloged open drip proof motor.

• Roof opening is a square dimension.

26

(660)

30

(762)

287⁄8

(733)

353⁄8

(899)

293⁄4

193⁄8

(756)

(492)

285⁄8

(727)21(553)

Roof

Opening

181⁄2

(470)

201⁄2

(521)

^Approx.

Weight

125

(57)

131

(59)

190

(86)

213

(97)

Steel Grease Fan 3

Installation

Typical Roof Mounting Installation

IMPORTANT

Installation, troubleshooting and parts replacement
are to be performed only by qualified personnel.
Consult and follow all applicable national, state and
local codes as they will supercede this document.

1. On the roof surface, cut an appropriate sized hole
and follow manufacturer’s instructions on curb
installation. Caulk and flash the curb to ensure a
water tight seal.

2. Remove motor cover. Access to the motor
compartment is accomplished by removing the
screws as shown on page 2, Figure 2.

3. Use the lifting lugs on the drive frame to lift and
place the unit on top of roof curb. Refer to page 2,
Figure1.

4. Secure fan to curb using a minimum of suitable
fasteners. Shims may be required depending upon
curb installation and roofing material.

5. Verify power line wiring is de-energized before
connecting fan motor to power source.

6. For commercial kitchen applications, the electrical
supply must enter the motor compartment through
the breather tube. For other non-flammable
applications, the electrical supply should also be
routed through the breather tube.

7. Connect power supply wiring to the motor as
indicated on the motor nameplate or terminal box
cover. Check the power source for compatibility
with the requirements of your equipment.

8. Check fan wheel for free rotation, recenter if
necessary. Check set screw(s) for tightness.

9. Check all fasteners for tightness.

10. Mount and wire safety disconnect switch under
motor cover. Wire control switches at ground level,
refer to Figure 3.

11. Replace motor cover.

MOTOR

J-BOX

SUPPLY VOLTAGE
115/208-230/60/1

L1
L2

MOTOR

J-BOX

SUPPLY VOLTAGE

208-230/460/60/3

L1

L2

L3

12. A drain trough is provided on all fans for single­point drainage of water and residue. Some means
for collection of this residue must be provided,
either a container directly under the trough or use
of an adapter and pipe to carry the residue to a
remote collection point. An optional grease trap
with water separator baffle is available from your
representative.

13. A clean-out port and hinged base are also provided
on all units. They aid the cleaning process through
additional access to the wheel. The fan is designed
for the worst cooking conditions, such as char
broilers, solid fuel cooking or oriental cooking.

Table 1 shows the suggested exhaust system

inspection schedule published in NFPA 96.

Table 1: Exhaust System Inspection Schedule

Type or Volume of Cooking

Systems serving solid fuel cooking
operations

Systems serving high-volume cooking
operations, such as 24 hour cooking,
char broiling, or wok cooking

Systems serving moderate-volume
cooking operations

Systems serving low-volume cooking
operations, such as churches, day camps,
seasonal business, or senior centers

Frequency

Check

Monthly

Quarterly

Semiannually

Annually

14. Clean-Out Port:
Position the
clean-out port so
it is on the side of
unit when hinged
open, see Figure4.

Figure 4

15. Hinged Base:
During installation
of the hinged base,
it is important not
to allow the fan to
go beyond 90º, see
Figure 5.

Figure 5

Figure 3 - Typical Wiring Diagram

Steel Grease Fan4