Greenheck SQ, BSQ User Manual

Document 472058

Models SQ and BSQ

Centrifugal Inline Fans

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 SQ Direct Drive

Model SQ is a direct drive centrifugal inline exhaust fan. These fans are specifically designed for inline applications. Performance capabilities range up to 5,000cfm

(8,500 m (498 Pa) of static pressure. SQ fans

are available in thirteen sizes with nominal wheel diameter ranging from 6 to 16 inches (152 to 406 mm) (060 to 160 unit sizes). Each fan shall bear a permanently affixed manufacturers engraved metal nameplate containing the model number and individual serial number.

/hr) and up to 2.0 in.wg

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 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 effects 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.

Model BSQ Belt Drive

Model BSQ is a belt drive centrifugal inline exhaust fan. These fans are speciﬁcally designed for inline applications. Performance capabilities range up to 27,200 cfm (46,200 m

4.0 in. wg (996 Pa) of static pressure. BSQ fans are available in fourteen sizes with nominal wheel diameter

ranging from 7 to 42 inches (178 to 1067 mm) (070 to 420 unit sizes). Each fan shall bear a permanently afﬁxed manufacturers engraved metal nameplate containing the model number and individual serial number.

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.

/hr) and up to

Centrifugal Inline Fans 1

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 a 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 Greenheck Representative. Any physical damage to the unit after acceptance is not the responsibility of Greenheck Fan Corporation.

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

Move fan to desired location and determine position of access panels, discharge and motor. Make sure the inlet and outlet have at least 2½ times the wheel diameter (duct diameter) before any obstructions like an elbow or transition. Attach the fan to a suitable framework as speciﬁed; hanging or base vibration isolators are recommended. See the SQ & BSQ Fan Dimensions table on page 3 for physical dimensions, utilizing Figures 1 and 2. Mounting dimensions and vibration isolator centerline information is provided on pages 4 and 5. The motor’s amperage and voltage ratings must be checked for compatibility to supply voltage prior to ﬁnal electrical connection. Electrical lead-in wires are then connected to the factory supplied safety disconnect switch. All wiring must conform to local and national codes.

Fan 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 Storage

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 Storage

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 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.

Centrifugal Inline Fans2

SQ & BSQ Fan Dimensions

Model A B C *D E *F *G *H Damper SQ Weight^ BSQ Weight^ SQ 60-75 12 SQ 80-95 15 BSQ 70-80 15

(305) 13 (330) 12 (305) 8 (381) 16 (406) 15 (381) 11 (381) 21 (533) 15 (381) 11

BSQ 90 15 (381) 21 (533) 15 (381) 117⁄8 (302) 1 (25) 151⁄2 (394) 14 (356) 121⁄2 (318) 12 (305) - 84 (38) SQ-BSQ 100 17 (432) 21 (533) 17 (432) 137⁄8 (352) 1 (25) 151⁄2 (394) 14 (356) 121⁄2 (318) 14 (356) 56 (25) 83 (38) SQ-BSQ 120 19 (483) 21 (533) 19 (483) 157⁄8 (403) 1 (25) 177⁄8 (454) 16 (406) 121⁄2 (318) 16 (406) 67 (30) 97 (44) SQ-BSQ 130 (HP) 21 (533) 21 (533) 21 (533) 177⁄8 (454) 1 (25) 177⁄8 (454) 16 (406) 121⁄2 (318) 18 (457) 67 (35) 97 (44) SQ-BSQ 140 (HP) 23 (584) 22 (559) 23 (584) 197⁄8 (505) 1 (25) 177⁄8 (454) 16 (406) 121⁄2 (318) 20 (508) 104 (47) 111 (50) SQ-BSQ 160 (HP) 26 (660) 26 (660) 26 (660) 227⁄8 (581) 1 (25) 201⁄2 (521) 17 (432) 137⁄8 (340) 23 (584) 160 (73) 208 (94) BSQ 180 (HP) 28 (711) 28 (711) 28 (711) 237⁄8 (606) 11⁄2 (38) 243⁄8 (619) 18 (457) 133⁄4 (349) 24 (610) 26 (12) 245 (111) BSQ 200 (HP) 32 (813) 32 (813) 32 (813) 277⁄8 (708) 11⁄2 (38) 28 (711) 20 (508) 16 (406) 28 (711) 26 (12) 314 (142 BSQ 240 (HP) 39 (991) 34 (864) 39 (991) 347⁄8 (886) 11⁄2 (38) 327⁄8 (835) 22 (559) 19 (483) 35 (889) 26 (12) 415 (188) BSQ 300 (HP) 46 (1168) 38 (965) 46 (1168) 417⁄8 (1064) 11⁄2 (38) 34 (864) 22 (559) 18 (457) 42 (1067) 26 (12) 537 (244) BSQ 360 (HP) 52 (1321) 42 (1067) 52 (1321) 477⁄8 (1216) 11⁄2 (38) 34 (864) 22 (559) 18 (457) 48 (1219) 26 (12) 686 (311) BSQ 420 (HP) 58 (1473) 50 (1270) 58 (1473) 537⁄8 (1368) 11⁄2 (38) 34 (864) 22 (559) 18 (457) 54 (1372) 26 (12) 789 (358)

All dimensions in inches (millimeters) and weight is shown in pounds (kilograms). *May be greater depending on motor. ^Weight shown is largest cataloged Open Drip Proof motor.

⁄8 (225) 1 (25) --

⁄8 (302) 1 (25)

⁄8 (302) 1 (25) 151⁄2 (394) 14 (356) 121⁄2 (318) 12 (305) - 76 (34)

---

9 (229) 26 (12) -

12 (305) 41 (19) -

Filter Option Dimensions

(18)

(34)

(40)

114

(52)

120

(54)

174

(79)

246

117

(53)

120

(54)

144

(79)

140

(64)

181

(82)

294

344

441

573

759

957

Filter

Size

10 x 12

(254 x 305)

14 x 25

(356 x 635)

16 x 20

(406 x 508)

16 x 25

(406 x 635)

20 x 20

(508 x 508)

20 x 25

(508 x 635)

20 x 20

(508 x 508)

14 x 25

(356 x 635)

16 x 20

(406 x 508)

16 x 25

(406 x 635)

20 x 20

(508 x 508)

20 x 25

(508 x 635)

20 x 20

(508 x 508)

20 x 25

(508 x 635)

12 x 25

(305 x 635)

16 x 25

(406 x 635)

20 x 25

(508 x 635)

16 x 25

(406 x 635)

20 x 25

(508 x 635)

16 x 25

(406 x 635)

20 x 25

(508 x 635)

16 x 25

(406 x 635)

20 x 25

(508 x 635)

Model A B C D WT.

⁄8

(305)

(381)

(432)

(483)

(533)

(584)

(660)

(381)

(432)

(483)

(533)

(584)

(660)

(711)

(813)

(991)

(1168)

(1321)

(1473)

87⁄8

(225)1 (25)

117⁄8

(302)1 (25)

137⁄8

(352)1 (25)

157⁄8

(403)1 (25)

177⁄8

(454)1 (25)

197⁄8

(505)1 (25)

227⁄8

(581)1 (25)

117⁄8

(302)1 (25)

137⁄8

(352)1 (25)

157⁄8

(403)1 (25)

177⁄8

(454)1 (25)

197⁄8

(505)1 (25)

227⁄8

(581)1 (25)

237⁄8

(606)

277⁄8

(708)

347⁄8

(886)

417⁄8

(1064)

477⁄8

(1216)

537⁄8

(1368)

11⁄2

(38)

11⁄2

(38)

11⁄2

(38)

11⁄2

(38)

11⁄2

(38)

11⁄2

(38)

(112)

(133)

(156)

(200)

(260)

(344)

(434)

1185

(538)

SQ 60-75

SQ 80-95

SQ 100

SQ 120

SQ 130

SQ 140

SQ 160

BSQ 70-80-90

BSQ 100

BSQ 120

BSQ 130 (HP)

BSQ 140 (HP)

BSQ 160 (HP)

BSQ 180 (HP)

BSQ 200 (HP)

BSQ 240 (HP)

BSQ 300 (HP)

BSQ 360 (HP)

BSQ 420

Note: 24-inch side clearance is recommended for accessing and removing ﬁlters. All dimensions in inches (millimeters) and weight (WT.) in pounds (kilograms).

(562)

(1159)

(1200)

(1326)

(1178)

(1330)

(1305)

(1286)

(1200)

(1326)

(1178)

(1330)

(1305)

(1399)

(1694)

(1749)

(1832)

(2013)

(2365)

⁄8

⁄4

⁄16

⁄8

⁄4

⁄16

⁄8

⁄16

⁄8

⁄4

⁄8

Filter

Quantity

Figure 1:

SQ Dimensions

Figure 2:

BSQ Dimensions

Figure 3: Model SQ - Filter Options

Figure 4: Model BSQ - Filter Options

Optional cover varies

with motor size.

Recommend 24 in.

clearance.

Centrifugal Inline Fans 3

Mounting: SQ /BSQ

All SQ and BSQ fan models can be mounted horizontally, vertically or at an angle. For ease of installation, knockouts are provided at each location where mounting brackets are shown in Figures 5, 6 and

7. Optional brackets are universally adjustable to mount in any of these locations.

Hanging rails

by others

Figure 5 Horizontal Hanging or Base Mount

With either a hanging or base mount the motor may be located on either side. The base mount allows top access panels only.

Figure 6 Horizontal Hanging or Base Mount

With a hanging mount, the motor may be located on either top or bottom. The base mount allows top motor location only. Both options provide access panels on two sides.

Hanging rails

by others

Figure 7 Vertical Hanging or Base Mount

Mounting brackets are turned 90° for vertical mounting. Access panels are located on the two sides adjacent to the motor.

Mounting Dimensional Data

Model A B C D E F G SQ 60-75 10 SQ 80-95 13 BSQ 70-90 185⁄8 (473) 201⁄8 (511) 183⁄4 (476) 117⁄8 (302) 485⁄16 (1227) 273⁄8 (695) SQ-BSQ 100 185⁄8 (473) 221⁄8 (562) 203⁄4 (527) 137⁄8 (352) 447⁄8 (1140) 24 (610) SQ-BSQ 120 185⁄8 (473) 24 (610) 223⁄4 (578) 16 (406) 493⁄8 (1254) 281⁄8 (714) SQ-BSQ 130 185⁄8 (473) 261⁄8 (664) 243⁄4 (629) 177⁄8 (454) 44 (1118) 23 (584) SQ-BSQ 140 195⁄8 (498) 281⁄8 (714) 263⁄4 (679) 197⁄8 (505) 501⁄16 (1272) 28 (711) SQ-BSQ 160 231⁄2 (597) 31 (787) 293⁄4 (756) 227⁄8 (581) 495⁄8 (1260) 235⁄8 (600) BSQ 180 25 BSQ 200 291⁄8 (740) 37 (940) 333⁄4 (857) 263⁄4 (679) 643⁄16 (1630) 321⁄4 (819) BSQ 240 315⁄8 (803) 441⁄4 (1124) 403⁄4 (1035) 337⁄8 (860) 661⁄2 (1689) 321⁄8 (816) BSQ 300 35 (889) 51 (1295) 473⁄4 (1213) 407⁄8 (1038) 691⁄8 (1756) 313⁄8 (797) BSQ 360 383⁄4 (974) 571⁄4 (1454) 531⁄2 (1359) 463⁄4 (1187) 76 (1930) 3411⁄16 (881) BSQ 420 471⁄8 (1197) 63 (1600) 597⁄8 (1521) 597⁄8 (1521) 901⁄2 (2299) 401⁄2 (1029)

All dimensions in inches (millimeters).

⁄8 (270) 17 (432) 153⁄4 (400) 87⁄8 (225) 193⁄4 (502) 7 (178)

⁄4 (337) 20 (508) 183⁄4 (476) 117⁄8 (302) 43 (1092) 273⁄8 (695)

⁄2 (648) 331⁄2 (851) 299⁄16 (751) 223⁄4 (578) 529⁄16 (1335) 241⁄2 (622)

Hanging rails not included.

Supplied by

others.

Hanging rails not included.

Supplied by

others.

Centrifugal Inline Fans4

Duct Length: The inlet and outlet duct length should be

approximately two to three wheel diameters long before and after the fan to achieve cataloged performance.

Left Side Discharge

Figure 8

Inlet

Width

Inline Discharge

Height

Right Side Discharge

Side Discharge: Make sure discharge is orientated in the same direction as originally ordered, performance will change with different discharge positions. Refer to Figure 8 for proper side discharge deﬁnition and the Side Discharge chart for dimensions. Refer to the CAPS program or consult factory for performance corrections.

Side Discharge Duct Openings

Unit Size Width Height

BSQ 70-80-90 11 SQ 60-75 97⁄8 (251) 87⁄8 (225) SQ 80-95 127⁄8 (327) 117⁄8 (302) SQ 100/BSQ 100 137⁄8 (352) 137⁄8 (352) SQ 120/BSQ 120 157⁄8 (403) 157⁄8 (403) SQ 130/BSQ 130 (HP) 177⁄8 (454) 177⁄8 (454) SQ 140/BSQ 140 (HP) 197⁄8 (505) 197⁄8 (505) SQ 160/BSQ 160 (HP) 227⁄8 (581) 227⁄8 (581) BSQ 180 (HP) 237⁄8 (606) 237⁄8 (606) BSQ 200 (HP) 277⁄8 (708) 277⁄8 (708) BSQ 240 (HP) 287⁄8 (733) 347⁄8 (886) BSQ 300 (HP) 317⁄8 (810) 417⁄8 (1064) BSQ 360 (HP) 327⁄8 (835) 377⁄8 (962) BSQ 420 347⁄8 (886) 437⁄8 (1114)

All dimensions in inches (millimeters).

⁄8 (302) 117⁄8 (302)

Standing Neoprene Isolator

Standing Spring Isolator

5/8 inch

(16 mm)

nominal

Hanging Neoprene IsolatorHanging Spring Isolator

(51)

63⁄4

(171)

63⁄4

(171)

25⁄16

(59)

25⁄8

(67)

Isolator Dimensional Data

Model H I J K L

SQ 60-75 SQ 80-95 BSQ 70-90 SQ-BSQ 100 SQ-BSQ 120 SQ-BSQ 130 SQ-BSQ 140

SQ-BSQ 160 BSQ 180 BSQ 200 BSQ 240 BSQ 300 BSQ 360 BSQ 420

All dimensions in inches (millimeters).

(35)

⁄8

51⁄2

(140)

⁄8

51⁄2

(140)

Centrifugal Inline Fans 5

Pre Start-Up Checks

1. Check all fasteners for tightness. The wheel should rotate freely and be aligned as shown in Figure 9. Wheel position is preset and the unit is tested at the factory. Movement may occur during shipment, and realignment may be necessary. Centering can be accomplished by loosening the bolts holding the inlet (venturi) panel and repositioning. Wheel and inlet cone overlap can be adjusted by loosening the setscrews in the wheel and moving the wheel to the desired position.

3. Vibration Isolators: After fan is moved to desired location, punch out the four knockout holes which are located on the unit top and bottom panels. Assemble the brackets to the unit according to the appropriate drawings on page5 and refer to respective parts list on page11. Make certain all connectors are tight and that all washers are in.

4. For BSQ Fans: If adjustments are made, it is very important to check the pulleys for proper alignment. Misaligned pulleys lead to excessive belt wear, vibration, noise, and power loss. (see Figure 11).

Wheel Overlap Dimensions

Model

SQ 60-95 SQ 100-160 1/4 (6) BSQ 70-160 1/4 (6) - BSQ 180-240 3/8 BSQ 300-420 1/2 (13)

Figure 9

G - Overlap

in. (mm)

(10)

2. Wheel Rotation: Direction of wheel rotation is critical. Reversed rotation will result in poor air performance, motor overloading and possible burnout. Check wheel rotation by momentarily energizing the unit (all SQ and BSQ fans have clockwise wheel rotation when viewed from top of fan). Rotation should be clockwise as shown in Figure 10 and correspond to the rotation decal on the unit.

Figure 10

H - Gap in. (mm)

1/8 (3)

CORRECT

WRONG

Figure 11

WRONG

5. For BSQ Fans: Belt tension can be adjusted by loosening four fasteners marked “R” on the drive frame. (refer to Figure 13 on page 7). The motor plate slides on the slotted adjusting arms. Belt tension should be adjusted to allow 1/64 inch

of deﬂection per inch of belt span. For example, a 15inch belt span should have 15/64 inch (or about 1/4 inch) of deﬂection with moderate thumb pressure at mid-point between pulleys (see Figure12). Over-tightening will cause excessive bearing wear and noise. Too little tension will cause slippage at start-up and uneven wear.

WARNING

Correct direction of wheel rotation is critical. Reversed rotation will result in poor air performance, motor overloading and possible burnout.

AVERTISSEMENT

La turbine doit impérativement tourner dans le bon sens. Une rotation en sens inverse entraînerait de mauvaises performances de soufflage, une surcharge du moteur voire un grillage du moteur.

Centrifugal Inline Fans6

Figure 12

Belt Span

Deﬂection =

Belt Span

NOTE: Identical fasteners on opposing side must also be loosened.

Figure 13

6. The adjustable motor pulley is factory set for the RPM specified. Speed can be increased by closing or decreased by opening the adjustable motor sheave. Two groove variable pitch pulleys must be adjusted an equal number of turns open or closed. Any increase in speed represents a substantial increase in the horsepower required by a unit. Motor amperage should always be checked to avoid serious damage to the motor when speed is varied.

Operation: SQ / BSQ

1. Before starting up or operating fan, check all fasteners for tightness. In particular, check the setscrews in wheel hub (and pulleys, if applicable).

2. While in the OFF position or before connecting the fan to power, turn the fan wheel by hand to be sure it is not striking the venturi or any obstacle.

3. Start the fan and shut it off immediately to check rotation of the wheel with directional arrow in the motor compartment, see Figure 10.

4. When the fan is started, observe the operation and check for any unusual noises.

5. With the system in full operation and all ductwork attached, measure current input to the motor and compare with the nameplate rating to determine if the motor is operating under safe load conditions.

6. Keep inlets and approaches to fan clean and free from obstruction.

Inspection: SQ / BSQ

Inspection of the fan should be conducted at the ﬁrst 30 minute and 24 hour intervals of satisfactory operation.

30 Minute Interval

Inspect bolts, setscrews and motor mounting bolts. Adjust and tighten as necessary.

24 Hour Interval

Check all internal components. On BSQ unit only, inspect belt alignment and tension. Adjust and tighten as necessary.

IMPORTANT

The fan has been checked for mechanical noises at the factory prior to shipment. If mechanical noise should develop, suggested corrective actions are offered in the Troubleshooting section.

IMPORTANT

Over-tightening will cause excessive bearing wear and noise. Too little tension will cause slippage at start-up and uneven wear.

IMPORTANT

Adjust (tighten) belt tension after the first 24-48 hours of operation.

Centrifugal Inline Fans 7

Maintenance: SQ / BSQ

Installation and maintenance are to be performed only by qualiﬁed personnel who are familiar with local codes and regulations and who are experienced with this type of equipment.

Motor maintenance is generally limited to cleaning and lubrication (where applicable). Cleaning should be limited to exterior surfaces only. Removing dust buildup on motor housing ensures proper motor cooling.

Greasing of motors is only intended when ﬁttings are provided. Many fractional horsepower motors are permanently lubricated and should not be lubricated after installation. Motors supplied with grease ﬁttings should be greased in accordance with manufacturers’ recommendations. Where motor temperatures do not exceed 104ºF (40ºC), the grease should be replaced after 2,000 hours of running time as a general rule.

Wheels require very little attention when moving clean air. Occasionally, oil and dust may accumulate causing imbalance. When this occurs the wheel and housing should be cleaned to ensure smooth and safe operation.

All fasteners should be checked for tightness each time maintenance checks are performed prior to restarting unit.

A proper maintenance program will help these units deliver years of dependable service.

DANGER

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

DANGER

IMPORTANT

Uneven cleaning of the wheel will produce an out of balance condition that will cause vibration in the fan.

WARNING

This unit should be made non-functional when cleaning the wheel or housing (fuses removed, disconnect locked off).

WARNING

L’appareil doit être rendu non opérationnel lors du nettoyage de la turbine ou du caisson (fusibles retirés, sectionneur verrouillé).

Belt/Bearing Maintenance BSQ Unit

1. Belts tend to stretch after a period of time. They should be checked periodically for wear and tightness. When replacing belts, use the same type as supplied with the unit.

2. Matched belts should always be used on units with multi-groove pulleys.

3. For belt replacement, loosen the tensioning device enough to allow removal of the belt by hand. Do not force belts on or off. This may cause cords to break, leading to premature belt failure.

4. Once installed, adjust belts as shown in “Pre-StartUp Checks.”

5. Shaft bearings can be classiﬁed in two groups: relubricating and non-relubricating. All bearings on standard model BSQ fans are factory lubricated and require no further lubrication under normal use (between -20ºF and 180ºF in a relatively clean environment).

6. Units installed in hot, humid or dirty locations should be equipped with special bearings. These bearings will require frequent lubrication. Caution should be employed to prevent overpacking or contamination.

7. Grease ﬁttings should be wiped clean. The unit should be in operation while lubricating. Extreme care should be used around moving parts.

8. Grease should be pumped in very slowly until a slight bead forms around the seal. A high grade lithium base grease should be used.

Recommended Relubrication Frequency in Months

NOTE: If unusual environment conditions exist (extreme temperature, moisture or contaminants) more frequent lubrication is required.

A good quality lithium base grease, conforming to NLGI Grade 2 consistency, such as those listed here may be used.

Suggested Fan Bearing Greasing Intervals

Interval

(months)

1 to 3

3 to 6

6 to 12

12 to 18

Manufacturer Grease (NLGI #2)

U.S. Electric Motors Grease No. 83343 Chevron U.S.A. Inc Chevron SRI Grease #2

Mobil Oil Corporation

Texaco, Inc.

Amoco Oil Co. Rykon Premium #2 Exxon Unirex N2 Shell B Shell Alvania #2

Heavy duty in dirty, dusty locations; high ambient temperatures; moisture laden atmosphere; vibration.

12 to 24 hours per day, heavy duty, or if moisture is present

8 to 16 hours per day in clean, relatively dry atmosphere

Infrequent operation or light duty in clean atmosphere

Grease Manufacturers

Type of Service

Mobilith Mobil 532 Premium BRB #2 Texaco Multifak #2

Centrifugal Inline Fans8

Maintenance Documentation

Job Information

Job Name: ___________________________________ Service Organization: ______________________________

Address: _____________________________________ Address: _________________________________________

City: ________________________________________ City: _____________________________________________

State: _______________ Zip: __________________ State: ____________ Zip: __________________________

Phone: ______________________________________ Phone: ___________________________________________

Contact Person: ______________________________ Work Done By: ____________________________________

Nameplate Information Field Start-Up Documentation

Model: ______________________________________

Volts: _________ Hertz: ________ Phase: ______ Actual Voltage: _________ Hertz: _____ Phase: _____

Amps: _______________ Mark: ________________ Actual Amperage: _________________________________

Supply hp: ___________ Exhaust hp: ___________ Blower Rotation: __________________________________

Serial Number: _______________________________ Air Volume: Design cfm: _________________________

Model Voltage: _______________________________ Actual cfm: __________________________

Motor Amperage: _____________________________ Level of fan (L or H): _______________________________

Fan RPM: ____________________________________ Fan RPM Range (min.) _________ (max.) ____________

Maintenance Log

Date ___________________Time _____________ AM/PM