Larkin XUEF-100 Скачать руководство пользователя страница 19

Страница: 19 / 20

Utility Fans

WARNING

Before taking any corrective action, make certain
unit is not capable of operation during repairs.

AVERTISSEMENT

Avant d’entreprendre toute action corrective,
s’assurer que l’appareil ne pourra pas fonctionner
durant les réparations.

Troubleshooting

Problem

Cause

Corrective Action

Excessive Noise

Wheel Rubbing Inlet

Adjust wheel and/or inlet cone.
Tighten wheel hub or bearing collars on shaft.

V-Belt Drive

Tighten sheaves on motor/fan shaft. Adjust belt tension.
Align sheaves properly (see procedure).
Replace worn belts or sheaves.

Bearings

Replace defective bearing(s). Lubricate bearings.
Tighten collars and fasteners.

Wheel Unbalance

Clean all dirt off wheel. Check wheel balance.

Low CFM

Fan

Check wheel for correct rotation.

Duct System

Higher pressure than design. Filters need replacement.

High CFM

Fan

Decrease fan speed.

Duct System

Resize ductwork. Access door, ﬁlters, dampers not
installed.

Static Pressure Wrong

Duct system has more
or less restriction than
anticipated

Remove obstructions in system. Use correction factor to
adjust for temperature/altitude. Resize ductwork. Clean
ﬁlters/coils. Change fan speed.*

High Motor Amp Draw

Fan

Check rotation of wheel. Reduce fan speed.

Duct System

Resize ductwork. Check proper operation of isolation and
bypass dampers. Check ﬁlters and access doors.

Fan Doesn’t Operate

Electrical Supply

Check fuses/circuit breakers. Check for switches turned
off or disconnected. Check for correct supply voltage.

Drive

Check for broken belts. Tighten loose pulleys.

Motor

Assure motor is correct horsepower and not tripping
overload protector.

Overheated Bearing

Lubrication

Check for excessive or insufﬁcient grease in the bearing.

Mechanical

Replace damaged bearing. Relieve excessive belt tension.
Align bearings. Check for bent shaft.

Excessive Vibration

Belts

Adjust tightness of belts. Replacement belts should be a
matched set.

System Unbalance

Check alignment of shaft, motor and pulleys. Adjustable
pitch pulleys with motors over 15 hp are especially
prone to unbalance. Check wheel balance, rebalance if
necessary.

* Always check motor amps and compare to nameplate rating. Excessive fan speed may overload the motor

and result in motor failure. Do not exceed the maximum cataloged rpm of the fan.

Содержание XUEF-100

Страница 1: ...s 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 t...

Страница 2: ...age 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...

Страница 3: ...ake sure it is in working order 1 Check all fasteners set screws on the fan wheel bearings drive motor base and accessories for tightness 2 Rotate the fan wheel by hand and assure no parts are rubbing Access to the wheel is obtained through a bolted panel located on the side of the fan housing 3 Ensure proper wheel settings for radial gap and alignment Refer to Radial Gap Overlap and Wheel Alignme...

Страница 4: ...t it be operated in a completely level position For further details on safety practices involving industrial and commercial fans please refer to AMCA Publication 410 Electrical Disconnects All fan motors should have disconnects located in close visual proximity to turn off electrical service Service disconnects shall be locked out when maintenance is being performed Moving Parts All moving parts m...

Страница 5: ...age which becomes the installer s responsibility Optional Height Savings Bracket For illustration purposes some lifting location images with isolation bases are shown with optional height savings brackets Lift unit using the corner hole located in the isolation base with and without the height savings bracket Isolation Base Isolation Base with Height Savings Bracket XUEFD 100 XUEF 200 and XUEF 300...

Страница 6: ...l sizes have ﬁeld rotatable housings For the XUEF 400 rotatable housings are standard on sizes 30 and less arrangement 10 and Class 0 I and II Removal of the housing bolts allows the discharge to be rotated to the clockwise positions shown above For downblast DB discharge position a portion of the frame angle must be removed Fan rotation is always speciﬁed from the drive side of the housing Instal...

Страница 7: ... fan with an open inlet too close to a wall or bulkhead will cause reduced fan performance It is desirable to have a minimum of three fourths of a wheel diameter between the fan inlet and the wall Free Discharge Free or abrupt discharge into a plenum results in a reduction in fan performance The effect of discharge static regain is not realized R o t ation R o t ation POOR Length of Straight Duct ...

Страница 8: ...nly See the latest edition of NFPA 96 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations for detailed installation instructions materials duct connections and clearances XUEF 300 and 400 models are listed for grease removal UL cUL 762 File no MH11745 Drain Options XUEF D 100 Drain only XUEF 200 None Drain only With plug XUEF 300 None With plug XUEF 400 None With ...

Страница 9: ... straight line from sheave to sheave with a slight bow on the slack side Aligning Sheaves with a Straight Edge Field Coating Touch Up Procedure for Scratched Areas Standard coating and color is RAL 7023 Concrete Grey The procedure outlines the correct method for repairing minor scratches in the coating 1 Scuff affected area to be repaired using medium sandpaper provided or medium Scotch Brite pad ...

Страница 10: ...he unit and noting if rotation is in the same direction as the airﬂow at the outlet and conforms to the rotation decal afﬁxed to the unit Wheels as viewed from the drive side Wheel Cone Radial Gap Radial Gap Overlap A Straight Edge Straight Edge Inlet Cone Inlet Cone Backward Inclined Radial Gap Overlap and Wheel Alignment Radial Gap and Overlap Dimensions XUEFD 100 BI A Overlap Overlap Tolerance ...

Страница 11: ...blessure grave ou de mort débrancher et verrouiller l alimentation électrique en position Arrêt avant tout contrôle ou entretien Additional Steps for Initial Start Up 1 Check for proper wheel rotation by momentarily energizing the fan Access to view the wheel can be gained through the blower housing access panel One of the most frequently encountered problems are motors that are wired to rotate th...

Страница 12: ...ld be removed to prevent unbalance and possible damage 4 Inspect fan impeller and housing looking for fatigue corrosion or wear Fan Operation All fans should be run every thirty 30 days or at least bumped every thirty days It is preferred that each fan is run as this causes all electrical and mechanical components to get up to temperature displacing any formed condensation redistributes load on be...

Страница 13: ...sted by raising or lowering the motor pivot plate For initial tensioning the proper belt deﬂection halfway between sheave centers is 1 64 inch for each inch of belt span Check belt tension two times during the ﬁrst 24 hours of operation and periodically thereafter Belt Span Deﬂection Belt Span 64 Wheel and Fastener Maintenance Wheels require very little attention when exhausting clean air however ...

Страница 14: ...g and until clean grease is seen purging from the bearing The lubrication interval may be modiﬁed based on the condition of the purged grease If bearing is not visible to observe purged grease lubricate with number of shots indicated in chart for bore size For conditions including high temperatures moisture dirt or excessive vibration consult the factory for a speciﬁc lubrication interval for your...

Страница 15: ...s procedures for removal and installation 3 Before removing the bearing bolts make sure the shaft is supported slightly Remember to consider the wheel weight on the shaft 4 Remove both bearings from the shaft and clean remove any burrs using an emery cloth or ﬁle 5 Clean mounting surface of any dirt or grease Bearing Installation 1 Before installing read bearing manufacturers procedures Before put...

Страница 16: ...uage de conformité UL Each fan bears a manufacturer s nameplate with model number and serial number embossed This information will assist the local manufacturer s representative and the factory in providing service and replacement parts Before taking any corrective action make certain unit is not capable of operation during repairs XUEFD 100 Motor Wheel Inlet Cone Scroll Housing Motor Bracket Moto...

Страница 17: ... Slinger XUEF 300 Rub Ring XUEF 300 Shaft Seal XUEF 300 Fan Shaft Opposite Drive Side Bearing Drive Side Bearing Wheel Inlet Cone Inlet Flange Inlet Companion Flange Grease Container XUEF 300 Grease Fan Brackets XUEF 300 Inlet Guard Shaft Pulley driven Motor Pulley driver Weatherhood Components Optional Accessories ...

Страница 18: ... Pulley driven Drive Frame Assembly Motor Adjustable Motor Plate Companion Outlet Flange Punched Outlet Flange Outlet Guard Belt s Scroll Housing Heat Slinger Rub Ring Shaft Seal Fan Shaft Opposite Drive Side Bearing Drive Side Bearing Wheel Inlet Cone Inlet Flange Inlet Companion Flange Inlet Guard Motor Cover ...

Страница 19: ...ystem Use correction factor to adjust for temperature altitude Resize ductwork Clean ﬁlters coils Change fan speed High Motor Amp Draw Fan Check rotation of wheel Reduce fan speed Duct System Resize ductwork Check proper operation of isolation and bypass dampers Check ﬁlters and access doors Fan Doesn t Operate Electrical Supply Check fuses circuit breakers Check for switches turned off or disconn...

Страница 20: ..._______________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ Date _______________ Time _______________ AM PM Notes __________________________________________ ________________________________________________ __________________________________________...

Результаты поиска

Содержание XUEF-100

Отзывы:

Похожие инструкции для XUEF-100

Бренды по названию

Популярные бренды

Larkin XUEF-100, Инструкция по установке, эксплуатации и обслуживанию

Результаты поиска

Содержание XUEF-100

Отзывы:

Похожие инструкции для XUEF-100

Бренды по названию

Популярные бренды