Document 474738
Model XRUD Direct Drive
Model XRUB Belt Drive
Upblast Centrifugal Roof Exhaust
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 instructions could result in personal injury and/or property damage!
Model XRUD Direct Drive
Model XRUD is a direct drive upblast centrifugal exhaust fan. These fans are specifically designed for roof mounted applications. Performance capabilities range up to 6,400 cfm (10,874 m3/hr) and up to
3 in. wg (747 Pa) of static pressure. The maximum continuous operating temperature for fan sizes 098-200 is 400°F (204°C) and
for fan sizes 060-095 is 160°F (71°C). XRUD fans are available in twenty sizes with nominal wheel diameter ranging from 9 to 20 inches (229 to 508 mm) (060-200 unit sizes). Each fan shall bear a permanently affixed manufacturer’s engraved metal nameplate containing the model number and individual serial number.
Model XRUB Belt Drive
Model XRUB is a belt drive upblast centrifugal exhaust fan. These fans are specifically designed for roof mounted applications. Performance capabilities range up to 30,000 cfm (50,970 m3hr) and up to 5.0 in. wg (1240 Pa) of static pressure. The maximum continuous operating temperature is 400°F (204°C).
XRUB fans are available in twenty-seven sizes with nominal wheel diameter ranging from 10 to 48 inches (254 to 1219 mm) (099 480 unit sizes). Each fan shall bear a permanently affixed manufacturer’s engraved 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 are 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 Electrical 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.
Upblast Centrifugal Roof Exhaust |
1 |
Receiving
Upon receiving the product, check the bill of lading to ensure all items were received. Inspect each crate for shipping damage before accepting delivery. All
damage should be noted on all the copies of the bill of lading and a claim should be filed with the carrier. Any physical damage to the unit after acceptance is not the responsibility of 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
XRUD Direct Drive
Lift unit on to the roof utilizing hooks under the horizontal supports. Evenly space the hooks using a minimum of four lifting straps. Use a spreader bar to ensure the straps do not come in contact with the unit, see Figure 1.
Spreader Bar
Lifting
Strap
Hook
Figure 1
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.
2 Upblast Centrifugal Roof Exhaust
Hook With
Safety Latch (Supplied by others)
(2) Bearing Plate
Lifting Points
(4) Drive Frame
Lifting Points
Figure 2
Screw
Screw
Figure 3
XRUB Belt Drive
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 2 for lifting points. Access to the drive frame is accomplished by removing the screws pointed out in Figure 3. The cover can then be removed and placed on a flat surface in an area protected from strong winds.
When XRUD/XRUB unit is on the roof, move fan to desired location using lifting points and fasten securely through mounting holes in base. Shims
may be necessary depending upon roofing material thickness.
The motor amperage and voltage ratings must be checked for compatibility to supply voltage prior to final electrical connection. For XRUD/XRUB installations, the electrical supply should be routed
through the conduit chase located between the curb cap and the bottom of the motor compartment or through the breather tube. Wiring must conform to local and national codes.
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) (wide temperature swings may cause 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.
The unit should be stored at least 3½ in. (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 on 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 lintfree 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.
IMPORTANT
Installation, troubleshooting and parts replacement is to be performed only by qualified personnel. Consult and follow all applicable national, state and local codes. They will supercede this document.
Upblast Centrifugal Roof Exhaust |
3 |
Dimensional Data
XRUD - Direct Drive
Model |
Curb Cap |
Damper |
Roof |
*Approx. |
|
Opening |
Weight |
||||
|
|
|
|||
|
|
|
|
|
|
XRUD 060, 065, 070, 075 |
17 |
8 |
101⁄2 |
29 |
|
(432) |
(203) |
(267) |
(13) |
||
|
|||||
|
|
|
|
|
|
XRUD 080, 085, 090, 095 |
19 |
10 |
121⁄2 |
40 |
|
(483) |
(254) |
(318) |
(18) |
||
|
|||||
|
|
|
|
|
|
XRUD 099, 101, 121, 131 |
19 |
12 |
141⁄2 |
67 |
|
(483) |
(305) |
(368) |
(30) |
||
|
|||||
|
|
|
|
|
|
XRUD 141, 161 |
22 |
16 |
181⁄2 |
90 |
|
(559) |
(406) |
(470) |
(41) |
||
|
|||||
|
|
|
|
|
|
XRUD 180, 200 |
30 |
18 |
201⁄2 |
142 |
|
(762) |
(457) |
(521) |
(64) |
||
|
|||||
|
|
|
|
|
•All dimensions are in inches (millimeters). *Approximate weight shown in lbs. (kg.) is the largest cataloged Open Drip Proof motor.
•The roof curb should be 1½ in. (38 mm) less than the curb cap to allow for roofing and flashing.
XRUB - Belt Drive
Model |
Curb |
Shaft |
Damper |
Roof |
*Approx. |
|
Cap |
Bearings |
Opening |
Weight |
|||
|
|
|||||
|
|
|
|
|
|
|
XRUB 099, 101, 101HP, |
19 |
3⁄4 |
12 |
141⁄2 |
66 |
|
121, 131 |
(483) |
(19) |
(305) |
(368) |
(30) |
|
|
|
|
|
|
|
|
XRUB 141, 141HP, |
22 |
3⁄4 |
16 |
181⁄2 |
87 |
|
161, 161HP |
(559) |
(19) |
(406) |
(470) |
(39) |
|
|
|
|
|
|
|
|
XRUB 161XP |
22 |
1 |
16 |
181⁄2 |
87 |
|
(559) |
(25) |
(406) |
(470) |
(39) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 180 |
30 |
3⁄4 |
18 |
201⁄2 |
126 |
|
(762) |
(19) |
(457) |
(521) |
(57) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 180HP |
30 |
1 |
18 |
201⁄2 |
126 |
|
(762) |
(25) |
(457) |
(521) |
(57) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 200 |
30 |
3⁄4 |
18 |
201⁄2 |
142 |
|
(762) |
(19) |
(457) |
(521) |
(64) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 200HP |
30 |
1 |
18 |
201⁄2 |
142 |
|
(762) |
(25) |
(457) |
(521) |
(64) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 220, 220HP, |
34 |
1 |
24 |
261⁄2 |
175 |
|
240, 240 HP, 240 XP |
(864) |
(25) |
(610) |
(673) |
(79) |
|
|
|
|
|
|
|
|
XRUB 360, 360HP, |
46 |
11⁄4 |
36 |
381⁄2 |
440 |
|
360XP |
(1168) |
(32) |
(914) |
(978) |
(200) |
|
|
|
|
|
|
|
|
XRUB 420 |
52 |
11⁄4 |
42 |
441⁄2 |
578 |
|
(1321) |
(32) |
(1067) |
(1130) |
(262) |
||
|
||||||
|
|
|
|
|
|
|
XRUB 480 |
58 |
11⁄2 |
48 |
501⁄2 |
675 |
|
(1473) |
(38) |
(1219) |
(1283) |
(306) |
||
|
||||||
|
|
|
|
|
|
•All dimensions are in inches (millimeters). *Approximate weight shown in lbs. (kg.) is the largest cataloged Open Drip Proof motor.
•The roof curb should be 1½ in. (38 mm) less than the curb cap to allow for roofing and flashing.
4 Upblast Centrifugal Roof Exhaust
Installation
General Ventilation Installation
Screw
Screw
Conduit |
Factory Wired |
|
Chase |
||
Motor to |
||
|
||
|
Disconnect |
|
3/4 in. |
|
(19 mm) |
Wiring by |
|
8 or 12 in. min. |
||
Others |
||
(203 or 305 mm) |
||
Damper |
||
|
Roof Deck |
|
|
11/4 in. |
Recommended |
11/4 in. |
Duct and |
||
(32 mm) |
Damper Size |
(32 mm) |
Recommended
Roof Opening
Figure 5 - Typical Roof Mounting Installation
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.
Roof Curb
Installation
2.If unit is equipped with a backdraft damper, it should be installed now.
3.Remove motor cover. Access to the motor compartment is accomplished by removing the screws as shown in Figure 3.
4.On XRUB belt drive fans, use the lifting lugs on the drive frame or bearing plate to lift and place the unit on top of roof curb. Refer to Figure 2, page 2.
5.On XRUD direct drive fans, lift and place the unit on top of roof curb using hooks under the horizontal supports. Refer to Figure 1, page 2.
6.Secure fan to curb using a minimum of eight lag screws, metal screws or other suitable fasteners. Shims may be required depending upon curb installation and roofing material.
7.Verify power line wiring is de-energized before connecting fan motor to power source.
8.For commercial kitchen and UL Listed emergency smoke control applications, the electrical supply must enter the motor
compartment through the breather tube. For other non-flammable applications, the electrical
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