Soler & Palau SQB Manual de usuario

Models SQB & SQD

Installation, Operation, and Maintenance Manual

6393 Powers Avenue

Jacksonville, FL 32217

P: 800.961.7370

F: 800.961.7379

SQB-SQD-IOM-v.2_1118

Square Inline Centrifugal Duct Fans

READ AND SAVE THESE INSTRUCTIONS

The purpose of this manual is to aid in the proper installation and operation of fans

manufactured by Soler & Palau USA. These instructions are intended to supplement good

general practices and are not intended to cover detailed instruction procedures, because of

the wide variety and types of fans manufactured by Soler & Palau USA.

Installation Instructions

MD6-ES24VK

1. INTRODUCTION

DO NOT INSTALL, USE OR OPERATE THIS EQUIPMENT UNTIL THIS MANUAL HAS

BEEN READ AND UNDERSTOOD. READ AND SAVE THESE INSTRUCTIONS FOR FUTURE USE.

It is the responsibility of the purchaser to assure that the installation and maintenance of this equipment is handled by

qualied personnel experienced in such work and equipment.

Contact your local representative should you need further information.

SHIPMENT AND RECEIVING:

Prior to shipment, all fans have been thoroughly inspected and tested.

All equipment shipped from Soler & Palau USA is skidded or crated to fully comply with trucking requirements. Inspect

all shipments carefully for damage. THE RECEIVER MUST NOTE ANY DAMAGE ON THE CARRIER’S BILL OF

LADING AND FILE A CLAIM IMMEDIATELY WITH THE FREIGHT COMPANY, IN THE CASE OF ANY DAMAGE.

Keep a record of all equipment received, including inspection details and date of receipt, because of the possibility of

partial shipments.

If you receive damaged goods, contact your S&P representative for repair or replacement service.

HANDLING:

Handle your equipment with caution. Some fans are provided with lifting lugs or holes for easy handling. Others must

be handled using nylon straps that protect the fan’s coating and housing. Spreader bars should be used when lifting

large parts.

Fans should be lifted by using straps around the fan housing only. DO NOT LIFT FANS BY THE MOTOR, BASE,

WHEEL, OR FLANGES.

STORAGE:

If fans are stored for any length of time, they should be stored in a clean, dry location to prevent rust and corrosion.

Outdoor storage is not recommended. When outdoor storage is necessary, they should be protected from the

elements as best as possible. Cover the fan inlet and outlet and keep motors dry and clean.

For extended storage (more than 3 months), motor shafts and bearings should be rotated monthly. If stored greater

than 6 months, bearing grease in motor and fan should be purged and replaced with compatible grease. Re-check

belts for proper tension. Storage records should be kept to assure proper maintenance. The factory can advise

warranty centers to provide motor and bearing service if needed.

2. INSTALLATION

Supports for suspended fans must be crossbraced for live load support to prevent side sway.

1. CAUTION! This fan contains rotating parts and requires special service. Appropriate safety precautions

should be taken during installation, operation and maintenance.

2. WARNING! Do not install or operate this fan in an environment or atmosphere where combustible or

ammable materials, gasses or fumes are present, unless it was specically designed and manufactured

for use in that environment. Explosion or re can result. Explosive, corrosive, high temperature, etc.

conditions may require special construction, inspection and maintenance. It is necessary to observe the fan

manufacturer’s recommendations and limitation concerning the type of material to be handled by the fan and

its application in special conditions.

3. A damper, if used, should be securely mounted within the curb or wall in a manner that allows free and

unobstructed operation.

4. CAUTION! All electrical work must be done in accordance with local and/or national electrical codes as

applicable. If you are unfamiliar with methods of installing electrical wiring, secure the services of a qualied

electrician.

5. WARNING! This product must be grounded.

6. DANGER! Make sure power is turned o󰀨 and locked in the OFF position at the service entrance

before installing, wiring or servicing fan.

7. CAUTION! Before wiring the motor, check the supply voltage against the motor nameplate voltage. High or

low voltage can damage the motor and void the motor warranty.

8. WARNING! Be sure to keep all wiring clear of rotating or moving parts.

9. WARNING! Before starting the fan, turn the wheel to assure it rotates freely. If needed, adjust the wheel/

shaft/bearing/motor position as required to achieve necessary clearances.

10. CAUTION! On belt drive units, assure belts are tensioned and aligned properly. (See Maintenance section).

11. WARNING! Check all setscrews and keys. Tighten as necessary prior to fan startup.

12. Due to the general nature of its applications, the basic air mover is available with protective guards and/or

other devices for required operating safety as with most installations of rotating machinery. Before operating

the basic unit in any of its applications determine requirements for such guards and/or devices needed

for protection against accidental contact with moving parts or against injury to nearby personnel or critical

equipment due to accidental rupture of fast moving parts.

3. START-UP

Lock out the power source.

Tighten all bolts and setscrews securely and, on belt drive fans, check sheave alignment and belt tension. Tighten

belts if necessary. NOTE THAT ALL BOLTS, SETSCREWS AND BELTS SHOULD BE TIGHTENED AFTER TWO

DAYS OF INITIAL OPERATION.

Clearance should be checked all around between wheel and the housing before starting up. The wheel should not

strike the housing.

No initial lubrication is required. Motors have been pre-lubricated by motor manufacturer and fan bearings by S&P.

Arrows to show direction of rotation and airow are attached to the fan housings.

After the electrical connections are completed, apply just enough power to start the impeller as indicated by the

directional arrows on the unit. If the impeller is turning the wrong direction, it will not deliver rated airow and the motor

connections must be altered to correct rotation.

Lock out the power source before the installation of all accessories.

Fan electrical power can now be applied and special attention should be given to determine if motor is working

properly. At this time, with air system in full operation, with guards attached, it is well for the electrician to measure

the operating amperage of the motor and compare with the nameplate rating to determine that the motor is operating

under safe load conditions.

The fan should not need balancing, as it was balanced at the factory to meet stringent vibration levels before

shipment. However, there are several things that may cause vibration, such as rough handling in shipment and

erection, weak foundations, and alignments.

4. MAINTENANCE

1. Before performing any maintenance on the fan, be sure power is turned o󰀨 and locked in the OFF position at

the service entrance before servicing the fan.

2. Ventilators should be carefully checked at least once a year. For critical or rugged applications, a routine

check every two or three months is suggested.

3. All motors supplied with Soler & Palau USA ventilators carry a one-year warranty from date

of shipment. For repairs within the warranty period, the motor must be taken to the motor

manufacturer’s authorized service dealer. Contact your representative for additional warranty details.

4. A periodic motor check should consist of spinning the motor shaft with the power o󰀨 to be sure the motor turns

freely and the bearings run smoothly. The belt on belt driven units should be removed from the motor sheave.

5. When removing or installing a belt, do not force the belt over the sheave. Loosen the motor mount so that the

belt can be easily slipped over the sheave.

6. The belt on belt driven units should be removed and carefully checked for radial cracks, ply separation or

irregular wear. A small irregularity in the contact surface of the belt will result in noisy operation. If any of

these defects are apparent, the belt should be replaced. Check the sheaves also for chipping, dents or rough

surfaces, which could damage the belt.

7. The correct belt tension is important. If the belt is too tight it will result in excess bearing pressure on the

motor bearings and shaft pillow block and may also overload the motor. If the belt is too loose it will result

in slippage, which will quickly burn out belts. A belt should feel “live” when thumped, approximately ¼” belt

deection when subject to nger pressure (3-5 lb.) at midpoint between sheaves.

8. The belt alignment should also be checked to be sure the belt is running perpendicular to the rotating shafts.

Motor and drive shafts must be parallel. Improper alignments will result in excessive belt wear.

9. Check sheave set screws to ensure tightness. Proper keys must be in keyways.

10. Do not adjust fan RPM. If sheaves are replaced, use only sheaves of identical size and type.

11. If unit is to be left idle for an extended period, it is recommended that belts be removed and stored in a cool,

dry place to avoid premature belt failure.

12. The standard pillow block bearings on belt driven ventilators are factory lubricated and are provided with

external grease ttings. Relubrication annually or more frequently, if required, is recommended.

13. During the rst few months of operation, it is recommended that the setscrews be checked to assure they are

tight.

14. The rotating wheel requires particular attention in most applications since materials in the air being handled

can build up on the blades to cause destructive vibration; and may also corrode and/or erode the blade metal

to weaken the structure of the impeller. Regular inspection and corrective action at intervals determined by

the severity of each application are essential to good service life.

BEARINGS AND LUBRICATION:

All S&P belt drive fan bearings are heavy duty, self-aligning ball type and are relubricable for continuous service.

Selection of the correct bearing grease and greasing intervals depends on several things. Extreme high or low

temperatures, dirty or damp surrounds, and vibration exceeding 1 or 2 mils are all things that will require more

frequent greasing or special greases. For standard service, use a lithium base grease that conforms to NLGI grade 2

consistency.

The motor bearings and the fan bearings on the belt drive fans should be greased at regular intervals. Motor

manufacturer’s greasing instructions and recommendations should be followed closely. Avoid the use of a pressure

greasing system which tends to ll the bearing chamber completely. Do not over grease. Use only 1 or 2 shots with

a hand gun in most cases. Maximum hand gun rating 40 P.S.I. Rotate bearings during lubrication where good safety

practice permits. NOTE: On motors with non-regreasable sealed bearings, no lubrication is required for the life of the

bearings.

Some of the most frequent causes of bearing failure is not greasing often enough, using an excessive quantity of

grease, or using incompatible greases. Excessive vibration, especially if the bearing is not rotating, will also cause

bearings to fail. Bearings must also be protected from water and moisture to avoid internal corrosion.

BEARING REPLACEMENT:

Fan bearings on belt drive fans should not need to be replaced for many years if the above recommendations

are strictly adhered to. However, use the following procedure when bearing replacement is necessary:

1. Gain access to the fan bearings. Remove the bearing cover, if any.

2. Loosen the belts by shifting the motor.

3. Remove the impeller and disconnect the remote lube tubes (if applicable).

4. Measure the location of the bearing to the impeller end of the shaft and the bearing spacing.

5. Remove the shaft and bearing assembly. Note the position of the bearings’ shims (if applicable).

6. Loosen all bearing/shaft setscrews or other locking device.

7. Remove bearings (may have to be pressed o󰀨 the shaft).

8. Polish the shaft with ne emery paper (240 Grit or ner) and le the setscrew dimples at.

9. Install new bearings on the shaft, making sure that the collars are together, (i.e., facing each other on the

shaft). Lightly seat one setscrew or eccentric locking collar on each bearing to hold in the approximate

marked position.

10. Mount the shaft/bearing assembly in the fan, with bolts. Do not tighten yet. Just snug up. Loosen the

setscrew.

11. Center the shaft in the housing (both ends) as closely as possible. (The fan impeller may need to be

temporarily installed to get its clearances equal).

12. Tighten the bearing mounting bolts.

13. Reinstall the lube tubes (if applicable).

14. Install bearing cover, impeller, and belts, and adjust the motor to get proper belt tension. Also, make sure that

the sheaves are properly aligned.

15. If a new shaft is supplied, then ignore items #6 through #8.

V-BELTS:

V-belts on S&P belt drive fans are oil, heat and static resistant type, and oversized for continuous duty. With proper

installation and maintenance, years of operating e󰀩ciency can be added to the life span of the V-belt drive.

The condition of V-belts and the amount of belt tension should be checked prior to start-up. When it becomes

necessary to adjust belt tension, do not over-tighten as bearing damage will occur. Recommended belt tension should

permit 1/64” per inch of span deection of the belt on each side of the belt measure half-way between the pulley

centerline. Extreme care must be exercised when adjusting V-belt as not to misalign the pulleys. Any misalignment

will cause a sharp reduction in belt life and will also produce squeaky, annoying noises. On units equipped with 2 or 3

groove pulleys, adjustments must be made so that there is equal tension on all belts.

1. Where tensioning rods are not provided, adjustment is easily obtained by loosening and adjusting one side of

the motor bracket at a time.

2. Always loosen tension adjustment enough to place belts on sheaves without running belts over the edge of

either sheave. A new belt may be seriously damaged internally by careless handling.

WARNING: Whenever belts are removed or installed, never force belts over pulleys without loosening motor

rst to relieve belt tension. The fan has been checked at the factory prior to shipment for mechanical noises.

If mechanical noise should develop, some suggestions are o󰀨ered as a guide to remedy the cause:

1. Check rotating members for adequate clearance.

2. Check proper belt tension and pulley alignment.

3. Check installation and anchoring

4. Check fan bearings

5. MOTORS

The fundamental principle of electrical maintenance is KEEP THE MOTOR CLEAN AND DRY. This requires periodic

inspection of the motor. The frequency depends upon type of motor and the service.

We recommend periodic checks of voltage, frequency, and current of a motor while in operation. Such checks assure

the correctness of frequency and voltage applied to the motor, and yield an indication of the fan load. Comparison

of this data with previous data will give an indication of the fan performance. Any serious deviations should be

investigated and corrected.

Fractional motors usually have prelubricated sealed bearings with no grease ttings and are lubricated for life.

Lubricate integral horsepower motors per the motor manufacturer’s recommendations. Lubrication frequency depends

on the motor horsepower, speed, and service. Use compatible greases.

1. All motors carry a one (1) year warranty from date of shipment. For repairs within the warranty period, the

motor must be taken to the motor manufacturer’s authorized service dealer. Contact your representative for

additional warranty details.

2. A periodic motor check should consist of spinning the motor shaft with the power o󰀨 to be sure the motor turns

freely and bearings run smoothly. The belt on belt driven units should be removed from the motor pulley.

RECOMMENDED BALL AND ROLLER BEARING GREASES SUGGESTED REGREASING INTERVALS

INTERVAL TYPES OF SERVICE

1-2 YEARS INFREQUENT OPERATION OR LIGHT DUTY IN CLEAN ATMOSPHERE

1 YEAR 8-16 HRS/DAY IN CLEAN, RELATIVELY DRY ATMOSPHERE

6 MONTHS 12-24 HRS/DAY, HEAVY DUTY, OR IF MOISTURE IS PRESENT

3 MONTHS HEAVY DUTY IN DIRTY, DUSTY LOCATIONS: HIGH AMBIENTS: MOISTURE LADEN ATMOSPHERE:

VIBRATION

Adjust

Variable

Pitch

Sheaves

Properly

Mount Belts Straight

Eliminate Slack

NOT THIS

Don’t Force Belt

BELT SPAN

DEFLECTION

DEFLECTION =

BELT

SPAN

Two-groove variable pitch

sheaves must be opened

the same number of turns

on both sides, otherwise

slippage is induced, wearing

belts rapidly.

Shafts must be parallel and

sheaves in alignment to

prevent unnecessary belt

wear.

Slack belts wear excessively,

cause slippage and deliver

less power. For longest belt

life, always provide proper

tension.

Loosen the motor so that

the belt can be slipped on

sheave easily. Forcing the

belt will break the cords

and cause early belt failure.

CAUTION

Greases by di󰀨erent soap bases (lithium, sodium, etc.) may not be compatible when mixed. Prevent such

intermixing by completely purging the bearing of old greases.

Note: Use regreasing intervals and grease as noted in tables, unless a lubrication plate on motor indicates otherwise.

Refer to motor lubrication plate for specic type and/or grade of lubricant to be used.

Example:

MANUFACTURER GREASE (NLGI No. 2)

US Electric Motors Grease No. 83343

Chevron USA Inc. Grease SRI Grease No. 2

Mobile Oil Corp. Mobilux 2

Texaco, Inc. Premium BRB No. 2

6. REPAIR PARTS

1. Belts – use only belts of the same type and size furnished.

2. Bearings – replacement adapter bearing units are available from trade channels for installation in pillow block

housings when required.

3. Fan Blades – Repair of individual fan blades or impeller assemblies is not recommended. Contact factory with

blade size, number of blades, bore size, motor HP, air ow direction, rotation, fan RPM or sheave sizes and

any order/tag information that is available for replacement.

4. Misc. Parts – Not available from local trade channels should be returned for repair or replacement. Be sure to

obtain return tags or authorization before shipment.

5. Electric Motors – Repair or replacement of motors is normally performed by a repair station authorized by the

manufacturer. Contact your representative or the factory for locations nearest to you. DO NOT ship motor to

the factory without specic authorization.

7. FAN TROUBLE-SHOOTING CHART

PROBLEM POSSIBLE CAUSES

Excessive Vibration Impeller loose on shaft

Belts loose or too tight

Out of balance impeller

Excessive buildup of dirt/dust on impeller

Bent shaft

Weak mounting base for fan

Fan mounting bolts loose

Loose or worn bearings

Bearing or drive misalignment

Mismatched belts

Structures not crossbraced (wall fans)

Curb not at and level

Excessive Horsepower Static pressure higher than design

Wheel or impeller rotating in wrong direction

Fan speed higher than design

Too Little Air Restricted fan inlet or outlet

Filters are dirty or clogged

Impeller rotating in the wrong direction

System is more restrictive (more static pressure) than expected

Fan speed lower than design

Inlet or Outlet screens clogged

Too Much Air Filters not in place

Fan speed higher than design

System is less restrictive (less static pressure) than expected

Fan Does Not Operate Wrong voltage

Electricity turned o󰀨 or note wired properly

Loose pulleys

Blown fuses

Overload protector has broken circuit

Broken belts

Excessive Noise Impeller loose

Bearing or drive misalignment

Accumulation of material on impeller

Worn or corroded impeller

Impeller out of balance

Impeller hitting housing

Bent shaft

Defective or bad bearings

Bearings need lubrication

Loose bearing bolts

Loose or worn bearings

Mismatched belts

Belts too loose or too tight

Belts oily or dirty

Belts worn

Loose fan mounting bolts

Rattle of components in high velocity airstream

Electrical noise

Noise from high velocity air system

Vibrating parts not isolated from building

Vibrating duct work

8. WARRANTY

Soler & Palau USA warrants this equipment to be free from defects in material and workmanship for ve

(5) years from date of shipment. Any units or parts which prove to be defective and are reported during

the warranty period will be replaced at our option when returned to our factory, transportation prepaid.

Deterioration or wear by heat, abrasive action, chemicals, improper installation or operation or lack of normal

maintenance shall not constitute defects, and are not covered by warranty.

The motor is warranted by the motor manufacturer for one year. If the motor becomes defective in the warranty

period, it should be taken to the nearest authorized motor service station. If this is not done, the motor manufacturer

will not warrant the motor. Call the factory for instructions if authorized service station is not known.

Soler & Palau USA will not be responsible for any installation, removal or re-installation costs or any consequential

damage resulting in failure to meet conditions of any warranty.

LIMITATION OF WARRANTY AND LIABILITY

This warranty does not apply to any such S&P product or parts which have failed as a result of faulty installation or

abuse, or incorrect electrical connections or alterations, made by others, or use under abnormal operating conditions

or misapplication of the products and parts.

Soler & Palau USA will not approve for payment any repairs made outside the factory without prior written consent of

its Jacksonville, Florida o󰀩ce.

The foregoing shall constitute our sole and exclusive warranty and our sole and exclusive liability and is in lieu of

all other warranties, whether written, oral, implied or statutory. There are no warranties which extend beyond the

description of the page hereof. Seller does not warrant that said goods and articles are of merchantable quality or that

they are t for any particular purpose. The liability of seller on any claim of any kind, including negligence, for any loss

or damage arising out of or connected with, or resulting from the sale and purchase of the products and parts covered

by this proposal, acknowledgement, order or from the performance or breach of any contract pertaining to such sale

or purchase, or from the design, manufacture, sale, delivery, resale, installation, technical direction of installation,

inspection, repair, operation or use of any products or parts covered by this proposal, acknowledgement, order or

furnished by seller shall, in no case exceed the price allocable to the products or parts thereof which give rise to the

claim and shall terminate one (1) year after the shipment of said products and parts.

In no event, whether as a result of breach of contract, or warranty or alleged negligence, defects, incorrect advice or

other causes, shall seller be liable for special or consequential damages, including, but not limited to, loss of prots

or revenue, loss of use of the equipment or any associated equipment, cost of capital, cost of substitute equipment,

facilities or services, down time costs, or claims of customers of the purchaser for such damages. Soler & Palau USA

neither assumes nor authorizes any persons to assume for it any other liability in connection with the sale of its fan

products and parts. Some states do not allow the exclusion or limitation of incidental or consequential damages, so

all of the above limitations or exclusions may not apply to you.

SAFETY ACCESSORIES WARNING:

The responsibility for providing safety accessories for equipment supplied by Soler & Palau USA is that of the

installer and user of this equipment. Soler & Palau USA sells its equipment with and without safety accessories, and

accordingly it can supply such safety accessories upon receipt of order.

The user, in making its determination as to the appropriate safety accessories to be installed and any warning

notices, should consider (1) the location of the installation, (2) the accessibility of employees and other persons

to this equipment, (3) any adjacent equipment, (4) applicable building codes, and (5) requirements of the Federal

Occupational Safety and Health Act.

Users and installers of this equipment should read “RECOMMENDED SAFETY PRACTICES FOR AIR MOVING

DEVICES” which is published by Air Movement and Control Association, 30 West University Drive, Arlington Heights,

Illinois 60004.

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