Wilo TR 212 Series Installation And Operating Instructions Manual Download Page 47

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Appendix

Installation and operating instructions Wilo-EMU TR/TRE 212 ... 326-3

13.3.6.1 Repair of housing coating

The paint layer can become electrostatically charged in case of thicker
coats.

DANGER! Risk of explosion! In explosive atmospheres, a discharge can cause

an explosion!

If the housing coating has to be repaired, the maximum coat thickness is 2 mm
(0.08 in)!

13.3.6.2 Replacing the connection cable

Changing the connection cable is strictly prohibited!

13.3.6.3 Changing the mechanical seal

Changing the seal on the motor side is strictly prohibited!

Summary of Contents for TR 212 Series

Page 1: ...Pioneering for You Wilo EMU TR TRE 212 326 3 6088786 Ed 02 2021 05 en Installation and operating instructions...

Page 2: ......

Page 3: ...10 4 2 Monitoring devices 12 4 3 Operating modes 13 4 4 Operation with frequency converter 13 4 5 Operation in an explosive atmosphere 13 4 6 Rating plate 13 4 7 Type key 14 4 8 Scope of delivery 14...

Page 4: ...tervals 34 9 5 Maintenance measures 34 9 6 Repairs 37 10 Faults causes and remedies 40 11 Spare parts 42 12 Disposal 42 12 1 Oils and lubricants 42 12 2 Protective clothing 42 12 3 Information on the...

Page 5: ...e following cases Inadequate configuration due to inadequate or incorrect instructions by the operator or the client Non compliance with these instructions Improper use Incorrect storage or transport...

Page 6: ...sible total loss NOTICE Useful information on handling the product Markups Prerequisite 1 Work step list Notice instructions Result Symbols These instructions use the following symbols Danger of elect...

Page 7: ...ed on again without authorisation Observe applicable local regulations when connecting to the mains power supply Comply with the requirements of the local energy supply company Train personnel on how...

Page 8: ...ange Ensure a second person is present to coordinate the procedure if required e g if the operator s field of vision is blocked Standing under suspended loads is not permitted Do not move suspended lo...

Page 9: ...ability Collect any leakage of fluid and operating fluid immediately and dispose of it ac cording to the locally applicable guidelines Disinfect product Changing operating fluid In the event of a moto...

Page 10: ...ompliance with the specific dimensioning based on the operator requirements Compliance with these instructions Any other use is regarded as non intended use 3 2 Improper use The mixers must not be use...

Page 11: ...sion The motor is fitted with maintenance free permanently lubricated and appropriately di mensioned rolling bearings The motor is cooled by the fluid around it Waste heat is transferred directly to t...

Page 12: ...monitoring devices Pre chamber o o o o o o o o Legend not available possible o optional standard In the Ex version this monitoring is omitted and not substituted A temperature limiter is fitted as sta...

Page 13: ...o o o o CSA Ex o o o o o o o Legend not available possible o optional standard For use in explosive atmospheres the mixer must be marked as follows on the rating plate Ex symbol of the corresponding a...

Page 14: ...16R Ex X TRE Submersible mixer horizontal TR mixer with standard asynchronous motor TRE mixer with asynchronous motors of motor efficiency class IE3 IE4 3 Number of blades 26 x100 nominal propeller d...

Page 15: ...become jammed during lifting and lowering Do not exceed the maximum bearing capacity of the lifting equipment Check that lifting equip ment is functioning properly before use NOTICE Transporting mixe...

Page 16: ...C 41 to 77 F relative humidity 40 to 50 Do not store the mixer in rooms in which welding work is carried out The resulting gases or radiation can corrode the elastomer parts and coatings Protect the...

Page 17: ...lowering device as stand unit 6 4 Installation DANGER Danger due to fluids hazardous to health during installation Ensure that the installation site is clean and disinfected during installation If co...

Page 18: ...h a safety harness Toxic or asphyxiating gases may build up during work Ensure adequate ventilation Observe protective measures in accordance with work regulations gas measure ment carry a gas detecto...

Page 19: ...being crushed Make sure the mixer cannot fall over or slip out of position CAUTION Do not place the mixer on the propeller Always place the mixer on a platform 2 Position a suitable tank to collect t...

Page 20: ...wering device the frame comes pre assembled If the mixer is delivered without a frame order the appropriate frame from customer service Preparatory tasks 1 2 3 4 5 6 7 8 Fig 4 Prepare the mixer 1 Hois...

Page 21: ...ixer over the basin NOTICE The frame must be perpendicular to the guide pipe If the frame is not perpendicular to the guide pipe adjust the reach of the hoisting gear Mounting the mixer on the lowerin...

Page 22: ...nd a corresponding number of cable brackets The quantity and size of the cable brackets depends on the order WARNING Use the nylon rope and cable brackets only for anchoring the connection cable They...

Page 23: ...rminal indicated The earth terminal is installed in the area of the connection cable A cable cross section in accordance with the locally applicable regulations must be used for the equipotential bond...

Page 24: ...ensors in series the measured value is between 60 und 300 Ohm With four sensors in series the measured value is between 80 und 400 Ohm 6 5 2 3 Check the resistance of the ex ternal electrode for pre c...

Page 25: ...o TR 212 TR 216 TRE 216 TR 221 TRE 221 TR 226 3 TRE 226 3 TRE 312 TR 316 TRE 316 TR 321 TRE 321 TR 326 3 TRE 326 3 ATEX o o o o o o o o o o o o o o FM o o o o o o o o o o o o o o CSA Ex o o o o o o o...

Page 26: ...depending on the selected activation type 6 5 5 1 Direct activation At full load set the motor protection switch to the rated current see rating plate At partial load it is recommended to set the mot...

Page 27: ...ble in a language the person nel can understand Make sure that the installation and operating instructions are read and understood by all personnel All safety devices and emergency cut outs on the sys...

Page 28: ...R 321 TRE 321 TR 326 3 TRE 326 3 ATEX o o o o o o o o o o o o o o FM o o o o o o o o o o o o o o CSA Ex o o o o o o o Legend not available possible o optional standard For use in explosive atmospheres...

Page 29: ...the rated current until the operating tem perature of the motor is reached and the flow in the basin increases During regular op eration the rated current should no longer be exceeded CAUTION If the m...

Page 30: ...e technical training knowledge and experience who can identify and prevent electrical hazards Installation dismantling work trained sewage technology professional Fixation and pipework in wet well and...

Page 31: ...ork regula tions DANGER Risk of death due to electrocution Improper conduct when carrying out electrical work can lead to death due to electric shock Electrical work must be carried out by a qualified...

Page 32: ...n thoroughly disinfect if required and store away 8 4 2 Clean and disinfect DANGER Danger due to fluids which are hazardous to health Disinfect mixer before carrying out any other work Wear the follow...

Page 33: ...rsonnel qualifications Electrical work qualified electrician Person with appropriate technical training knowledge and experience who can identify and prevent electrical hazards Maintenance work traine...

Page 34: ...n at an unfavourable duty point Unfavourable flow conditions e g due to fixtures or aeration When using the mixer under harsh conditions it is recommended that a maintenance contract be entered into C...

Page 35: ...f the temperature sensors with an ohmmeter The following measured values must be complied with Bimetallic strip Measured value 0 Ohm passage PTC sensor PTC thermistor Measured value depends on the num...

Page 36: ...n hole Mixer is not installed Mixer is not connected to the mains Wear protective equipment 1 Position the mixer horizontally on a firm surface WARNING Risk of hands being crushed Make sure the mixer...

Page 37: ...nd foot or eye injuries due to the absence of protective equipment Danger of serious injuries during work Wear the following protective equipment Safety gloves for protection against cuts Safety shoes...

Page 38: ...r blade with hub dismantled 1 Remove the mechanical seal spring from the shaft 2 Carefully remove the packing sleeve using a rubber mallet 3 Push the stationary ring of the mechanical seal out of its...

Page 39: ...rough the frame and handle grip Position the washer and screw on the hexagon nut NOTICE Only slightly tighten the fixation Do not fully tighten the handle grip 6 Securing the handle grip on the mixer...

Page 40: ...corrosion protection e g Sikaflex Sealing joint between motor flange and frame Fill slots on the motor flange up to the washer 12 Reattaching the handle grip to the frame Position the washer on the h...

Page 41: ...nd the monitoring device checked by a qualified electri cian and change it if necessary Have the motor protection switches and fuses installed and adjusted accord ing to technical specifications by a...

Page 42: ...he connection corrected by a qualified electrician 5 Signs of wear on propeller Inspect propeller and replace if necessary 6 Motor bearings have worn Inform customer service send the mixer back to the...

Page 43: ...29 06 210 M27 415 42 31 306 M30 565 57 61 417 If a Nord Lock screw locking device is used increase the tightening torque by 10 13 2 Frequency converter operation The motor in series design confirming...

Page 44: ...ed current or rated speed of the motor Connection for bimetallic strip or PTC sensor 13 3 Ex rating This section contains further information on the operation of the mixer in an explosive atmosphere A...

Page 45: ...max 10 Overview of possible monitoring devices TR 212 TR TRE 216 TR TRE 221 TR TRE 226 3 TRE 312 TR TRE 316 TR TRE 321 TR TRE 326 3 Motor compartment sealing chamber Pre chamber external pencil elect...

Page 46: ...nal board 1350 V Output current at the frequency converter max 1 5 times rated current Max overload time 60 s Torque applications quadratic pump curve or automatic energy optimisation pro cedure e g V...

Page 47: ...of thicker coats DANGER Risk of explosion In explosive atmospheres a discharge can cause an explosion If the housing coating has to be repaired the maximum coat thickness is 2 mm 0 08 in 13 3 6 2 Repl...

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Page 52: ...Pioneering for You Local contact at www wilo com contact WILO SE Wilopark 1 44263 Dortmund Germany T 49 0 231 4102 0 T 49 0 231 4102 7363 wilo wilo com www wilo com...

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