Xylem FLYGT Flygt 2071 Installation, Operation And Maintenance Manual Download

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Flygt 2071

Installation,

Operation, and

Maintenance Manual

Summary of Contents for FLYGT Flygt 2071

Page 1: ...Flygt 2071 Installation Operation and Maintenance Manual...

Page 2: ......

Page 3: ...guidelines 8 Storage location 8 Long term storage 8 Product Description 9 Products included 9 Pump design 9 Monitoring equipment 9 The data plate 10 Product denomination 10 Installation 12 Install the...

Page 4: ...the impeller 26 Install the impeller MT 29 Install the impeller LT 33 Troubleshooting 35 Introduction 35 The pump does not start 35 The pump does not stop when a level sensor is used 36 The pump start...

Page 5: ...ut safety messages It is extremely important that you read understand and follow the safety messages and regulations carefully before handling the product They are published to help prevent these haza...

Page 6: ...only under the conditions described in this manual The monitoring equipment incorporated in the product is correctly connected and in use All service and repair work is done by Xylem authorized person...

Page 7: ...o Trapped liquid can rapidly expand and result in a violent explosion and injury Never apply heat to impellers propellers or their retaining devices to aid in their removal Do not change the service a...

Page 8: ...eyes 1 Hold your eyelids apart forcibly with your fingers 2 Rinse the eyes with eyewash or running water for at least 15 minutes 3 Seek medical attention Chemicals or hazardous fluids on skin 1 Remove...

Page 9: ...NG Stay clear of suspended loads Observe accident prevention regulations in force Position and fastening The unit can be transported either horizontally or vertically Make sure that the unit is secure...

Page 10: ...internal cooling system are filled with a mixture of water and 30 glycol This mixture remains a flowing liquid at temperatures down to 13 C 9 F Below 13 C 9 F the viscosity increases such that the gly...

Page 11: ...age 39 The warm media liquid version has certain operational limitations which are stated on a plate on the pump For applicability see Application limits page 39 Particle size The pump can handle liqu...

Page 12: ...egree of protection 13 Rated current 14 Rated speed 15 Maximum submergence 16 Direction of rotation L left R right 17 Duty class 18 Duty factor 19 Product weight 20 Locked rotor code letter 21 Power f...

Page 13: ...nation 2 Version Serial number The serial number is used for identification of an individual product and is divided into four parts This is an example of a serial number and an explanation of its part...

Page 14: ...s Remove all debris from the inlet piping system before you install the pump Always check the impeller rotation before lowering the pump into the pumped liquid Sedimentation prevention In order to avo...

Page 15: ...rtup or during operation 5 Connect the motor cable and the starter and monitoring equipment according to the separate instructions Make sure that the impeller rotation is correct For more information...

Page 16: ...the cables must be in accordance with the local rules and regulations If intermittent operation is prescribed then the pump must be provided with monitoring equipment supporting such operation The the...

Page 17: ...ions are required for the power supply Y D Y serial Y parallel Y D 2 Arrange the connections on the terminal board in accordance with the required power supply Do not use links jumper strips with the...

Page 18: ...regulator 6 Diode 18 Contactor start relay or thermal relay 7 Motor cable minimum 20 m 66 ft 19 Thermal detector in stator 8 Screen 20 Thermal detector in main bearing 9 Pump 21 Jumper 10 Crimp connec...

Page 19: ...Code Description GNYE Green Yellow RD Red GY Grey BU Blue YE Yellow Installation Flygt 2071 Installation Operation and Maintenance Manual 17...

Page 20: ...tional ground Jumper Crimp connection Crimp isolation SYMBOLS AND DENOMINATIONS Connection plate W1 V1 U1 W2 V2 U2 2071 MAIN TERMINAL BOARD SENSOR TERMINALS Y STAR JUMPERS D DELTA JUMPERS T1 T2 3060 T...

Page 21: ...xA 3 S 4x0 5 4GA 2x1 5 GY BN BK GNYE WH RD BK GNYE A AWG 7 A AWG 3 2 1 GC T1 WH T2 WH OR BU YE MOTOR CABLE CONNECTION TO TERMINALBOARD 3 PH L3 L1 L2 L3 L1 L2 7GA 2x1 5 BK 3 BK 1 BK 2 BK 6 BK 4 BK 5 T1...

Page 22: ...act in the opposite direction to the impeller rotation L2 L1 L2 L3 L3 L1 WS001397A Figure 3 Start reaction 4 If the impeller rotates in the wrong direction then do the following If the motor has a 1 p...

Page 23: ...t with the pumped or mixed liquid Electrical Hazard Risk of electrical shock This unit has not been investigated for use in swimming pools If used in connection with swimming pools special safety regu...

Page 24: ...er is correct For more information see Check the impeller rotation 1 Check the oil level in the oil housing 2 Remove the fuses or open the circuit breaker and check that the impeller can be rotated fr...

Page 25: ...sembly always remember to perform these tasks Clean all parts thoroughly particularly O ring grooves Change all O rings gaskets and seal washers Lubricate all springs screws and O rings with grease Du...

Page 26: ...ce a year Major overhaul To secure a long operating lifetime for the product It includes replacement of key components and the measures taken during an inspection Every year under normal operating con...

Page 27: ...oil in the inspection chamber then check that the inner mechanical seal is not damaged If necessary contact an authorized service shop 5 If there is water in the inspection chamber then do the follow...

Page 28: ...olling over 2 Remove the oil plug 3 Remove the oil screw WARNING The oil housing may be pressurized Hold a rag over the oil plug to prevent oil from spraying out 4 Fit the oil drainage tube optional 5...

Page 29: ...780A c Remove the strainer Use a long M12 screw 427 07 00 WS001783A 3 Remove the diffuser ring a Remove the sleeves nuts and washers b Remove the diffuser ring MT sleeve LT Maintenance Flygt 2071 Inst...

Page 30: ...Remove the washer and sleeve on LT version d Pull off the impeller Use an impeller puller or pry off carefully with two strong screwdrivers or bars WS001778A e Remove the adjusting washers 5 MT versi...

Page 31: ...776A d Remove the adjusting washers Install the impeller MT Install the upper impeller MT 1 Prepare the shaft a Polish off any flaws with a fine emery cloth The end of the shaft must be clean and free...

Page 32: ...nst the impeller To adjust the diffuser use the 4 integrated rubber springs that are supported by the washer 6 Place the nuts on the studs Tighten the nuts evenly all around The impeller clearance sho...

Page 33: ...ed with polyurethane covering are extremely resistant to wear If the impeller does not rotate completely freely the friction will generate a lot of heat This can result in deformed wear parts a stuck...

Page 34: ...pletely freely the friction will generate a lot of heat This can result in deformed wear parts a stuck impeller or damage to the pump The impeller clearance should be 0 2 0 3 mm 0 008 0 012 in when th...

Page 35: ...the adjusting washers to adjust the clearance Pumps equipped with polyurethane covering are extremely resistant to wear If the impeller does not rotate completely freely the friction will generate a...

Page 36: ...earance should be 0 2 0 3 mm 0 008 0 012 in when the impeller is tightened WS001766A 7 Check that the impeller can rotate easily 8 Grease the outside of the diffuser lightly 9 Install the protective s...

Page 37: ...mpeller rotates freely The sensor indicators do not indicate an alarm The overload protection is not tripped If the problem still persists Contact the local sales and service representative The pump d...

Page 38: ...uipment Clean the level regulators Check the functioning of the level regulators Check the contactor and the control circuit Replace all defective items The stop level is set too low Raise the stop le...

Page 39: ...all three phases Check the fuses Replace fuses that have tripped If the fuses are intact notify a certified electrician The phase currents vary or they are too high Contact the local sales and service...

Page 40: ...Check that all valves are correctly installed according to media flow Check that all valves open correctly The impeller is difficult to rotate by hand Clean the impeller Clean out the sump Check that...

Page 41: ...tarting current see Motor data page 39 For other applications contact the local sales and service representative for information Motor data Feature Description Motor type Squirrel cage induction motor...

Page 42: ...A Starting current A 220 11 60 1 380 6 6 34 6 400 6 3 30 415 6 31 440 5 7 32 9 500 5 24 7 550 4 6 27 1 660 3 8 20 3 phase 60 Hz Motor type 3 335 rpm Rated output 4 5 kW 6 0 hp Voltage V Rated current...

Page 43: ...mm 27 75 in MT 185 mm 7 285 in 665 mm 26 18 in Table 4 Weight without motor cable LT 28 kg 62 lbs MT 31 kg 68 lbs Performance curves Test standard Pumps are tested in accordance with ISO 9906 HI leve...

Page 44: ...274A Figure 4 50 Hz 3 phase P2 kW hp H m ft Q usgpm l s WS006275A Figure 5 60 Hz 1 phase P2 kW hp H m ft Q usgpm l s WS006276A Figure 6 60 Hz 3 phase Technical Reference 42 Flygt 2071 Installation Ope...

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Page 46: ...dings factories and farms In more than 150 countries we have strong long standing relationships with customers who know us for our powerful combination of leading product brands and applications exper...

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