Bell-gossett MK MV (8204, 8204X) User Manual

MK, MV (8204, 8204X)Installation,Operation, andMaintenance Manual

Transportation and StorageInspect the deliveryInspect the package1. Inspect the package for damaged or missing items upon delivery.2. Note any damaged

Lifting eyeboltsWhen lifting eyebolts are used for lifting the unit, the following guidelines apply:• they always have to be screwed in firmly against

If the unit has been exposed to freezing temperatures, then allow it to reach the ambienttemperature of the sump before operating.Lifting the unit out

Product DescriptionPump designThe pump is submersible, and driven by an electric motor.Intended useThe product is intended for moving wastewater, slud

PositionPart Description1 Shaft Stainless steel with an integrated rotor2 Stator housing Cooled by ambient liquid3 Motor For information about the mot

Position Part Description3 Mechanical sealsType: Mechanical face seal4Seal housing Includes a coolant that lubricates and cools the seals; the housing

Ex- and MSHA-approved products also have approval plates. They are described below, ifapplicable.21312 1422212017 18 1916159 10 118765431WS000351A1. C

6. Additional information7. Insulation class8. Max. amperes9. Impeller diameterApprovalsThis section describes the special approvals that explosion-pr

InstallationInstall the pumpDANGER:Disconnect and lock out electrical power before installing or servicing the unit.WARNING:• Note that special rules

Install with guide railIn the P-installation, the pump is installed on a stationary discharge connection, andoperates either completely or partially s

5. Install the guide bars:a) Secure the guide bars in the bracket.b) Check that the guide bars are placed vertically. Use a level or a plumb line.6. C

3. Lower the pump into the sump.4. Place the pump on the base and make sure it cannot fall over or sink.Alternatively, the pump can be suspended with

• The thermal contacts/thermistors must be in use.• For FM-approved pumps, a leakage sensor must be connected and in use in order tomeet approval requ

7. Install the entry gland screw on the stator housing.Connect the motor cable to the pump: Ex-versionCAUTION:Leakage into the electrical parts can ca

NOTICE:• Thermal contacts are incorporated in the pump.• Thermal contacts must never be exposed to voltages higher than 250 V, breakingcurrent maximum

1234L1 L2 L3T3 T4T1 T2U1V1W1U2W2V2U1V1W1W2U2V2U1V1W1GCW2U2V2L1L2L3*YEGN/YEWHL1U1U2W2V2W1V1L3L2WS004133D1. Stator leads2. Terminal board3. Motor cable

Colors and marking of leadsMotor ConnectionColors and marking of the main leads773 29 05/2COLOR STANDARDSTATOR LEADSBN = BrownU1,U5 = RDBK = BlackU2

3-phase connection6 LEADSYOne cableTwo cablesL1U1U2W2V2W1V1L2L3L11U1RDU1L1L32V1BNV11L3L22W11YEW1L22GNU2W2BKBUV2GN/YE*YEGCWHL1U1RDU1W2L3W2BKV1BNV1GNU2L

SUBCAB with functional groundT1 and T2twistedWhite insulation hoseScreenGN/YEL1L2L3T1T2BNBKGYT1 and T2White insulation hosetwistedScreenBKBKBKBKBKBKGN

Y-SERY-SERTwo cablesL1U1U2U5W5W1W2V5V2V1L2L31L1RDU1U12L1L3BNV11L3V1L22YEW11L22W1GNU2RDU5BUV2BNV5BKW2YEW5GN/YE*YEGCWH9 LEADSWS004610BOne cableL1RDU1U1R

Table of ContentsIntroduction and Safety...

Sensors connectionWS004611BSENSORSColor and marking of control leads*IF Y/D-start, sensors not connectedControlSUBCAB 4GX/7G SUBCAB AWG H07RN-F*T1WH T

Check the impeller rotationWARNING:The starting jerk can be powerful.1. Start the motor.2. Stop the motor after a few seconds.3. Check that the impell

OperationPrecautionsWARNING:• Never operate the pump without safety devices installed.• Never operate the pump with the discharge valve closed.• Make

WARNING:• Make sure that the unit cannot roll or fall over and injure people or damage property.• In some installations, the pump and the surrounding

MaintenancePrecautionsDANGER:Disconnect and lock out electrical power before installing or servicing the unit.WARNING:• Always follow safety guideline

PropertyclassM4 M5 M6 M8 M10 M12 M16 M20 M24 M30100 4.1 (3) 8.1 (6) 14 (10) 34 (25) 66 (49) 115 (84.8) 248 (183) 481 (355) — —Table 2: Steel, torque N

WS001760A2. Place a container under the pump and turn the pump.3. Unscrew the other oil plug.If this hole has the markings "oil in", raise t

Change the coolant: Ex-version212WS000090A1. Inspection plug2. Coolant plugsEmpty the coolantWARNING:The seal housing may be pressurized. Hold a rag o

WS001471Ac) Replace the inspection plug and O-ring and tighten.Tightening torque: 44 Nm (33 ft-lbs)2. Empty the coolant:a) Place the pump in a horizon

WS001426AFill with coolantUse a coolant that is a mixture of 70% water and 30% monopropylene glycol. The coolantshould prevent corrosion and be nonpoi

Operation...

Service the pumpType of service Purpose Inspection intervalInitial inspection To make a check up of the pumpcondition by a Xylem authorizedservice rep

Service item Action1. Check that the resistance between the earth (ground) andphase lead is more than 5 megohms.2. Conduct a phase-to-phase resistance

Replace the impellerWS000139ARequired tools:• 10 mm hexagon bit adapter with an extension of at least 125 mm (4.92 in.)• Impeller pullerIf applicable,

e) Remove the rod.3. Raise the pump.4. Remove the drive unit from the pump housing:a) Remove the pump housing screws.WS006264Ab) Remove the drive unit

NOTICE:Surplus grease can cause the impeller to become loose. Remove surplus greasefrom conical and/or cylindrical surfaces of shafts and/or sleeves.c

WS006260A3. Remove the impeller screw:a) Place the pump horizontally.b) Lock the impeller in place by inserting a rod through the pump housing outlet.

WS003001A5. Fasten the impeller:a) Fit the greased washer and impeller screw.b) Tighten the impeller screw.Tightening torque: 76 Nm (56 ft-lbs)c) Tigh

TroubleshootingIntroductionFollow these guidelines when troubleshooting the pump:• Disconnect and lock out the power supply except when conducting che

Cause Remedy• The impeller• The sump in order to prevent the impeller from clogging again.If the problem persists, contact the local sales and service

The pump runs but the motor protection tripsWARNING:Always disconnect and lock out power before servicing to prevent unexpected startup.Failure to do

Introduction and SafetyIntroductionPurpose of this manualThe purpose of this manual is to provide necessary information for:• Installation• Operation•

NOTICE:Do NOT override the motor protection repeatedly if it has tripped. Doing so may result inequipment damage.Cause RemedyThe impeller rotates in t

Technical ReferenceMotor dataFeature DescriptionMotor type Squirrel-cage induction motorFrequency 60 HzSupply 3-phaseStarting method Direct on-lineMax

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Hazard levelsHazard level IndicationDANGER: A hazardous situation which, if not avoided, will result indeath or serious injuryWARNING: A hazardous s

WARNING:Do NOT send the product to the Xylem manufacturer if it has been contaminated by anynuclear radiation. Inform Xylem so that accurate actions c

Condition ActionChemicals or hazardousfluids in eyes1. Hold your eyelids apart forcibly with your fingers.2. Rinse the eyes with eyewash or running wate

Minimum permitted liquid levelSee the dimensional drawings of the product for the minimum permitted liquid levelaccording to the approval for explosio