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Summary of Contents for Wilo FKT 20.2
- Page 1 Pioneering for You Wilo Motor FKT 20.2, 27.1, 27.2: EMU FA, Rexa SUPRA, Rexa SOLID en Installation and operating instructions · 6086014 • Ed.01/2019-10...
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Page 3: Table Of Contents
Operation in an explosive atmosphere ................................ 33 Before switching on...................................... 33 Switch on and off...................................... 34 During operation ...................................... 34 8 Shut-down/dismantling................................. 35 Personnel qualifications.................................... 35 Operator responsibilities.................................... 35 Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:#EMU FA, Rexa SUPRA, Rexa SOLID... - Page 4 13.2 Protection class ....................................... 51 13.3 Intended use ........................................ 51 13.4 Electrical connection ...................................... 52 13.5 Commissioning........................................ 54 13.6 Maintenance and repair.................................... 54 14 Appendix.................................... 55 14.1 Tightening torques ...................................... 55 14.2 Frequency converter operation .................................. 55 WILO SE 2019-10...
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Page 5: General Information
Distribute any content. ƒ Use any content for competition purposes without authorisation. Wilo shall reserve the right to change the listed data without notice and shall not be li- able for technical inaccuracies and/or omissions. Subject to change Wilo shall reserve the rights to make technical changes to the product and individual components. - Page 6 Danger caused by strong magnetic field Danger of explosion Danger caused by explosive atmosphere General warning symbol Warning – risk of cutting injuries Warning – hot surfaces Warning – high pressure Warning – suspended loads Personal protective equipment: wear a safety helmet WILO SE 2019-10...
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Page 7: Personnel Qualifications
In case of sensitive mains, make provision for the installation on- Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 8: Use In Fluids Hazardous To Health
When working in chambers and closed spaces, a second person must be present for safety reasons. ƒ Take immediate countermeasures if there is a build-up of toxic or suffocating gases! ƒ Clean the device thoroughly. Disinfect devices that are used in fluids hazardous to health! WILO SE 2019-10... -
Page 9: During Operation
The sealing chamber and the cooling system of the motor is filled with white oil or a water-glycol mixture. Operating fluids must be replaced during regular maintenance work and disposed of according to the local guidelines. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 10: Operator Responsibilities
Intended use also includes compliance with this manual. Any other use is regarded as non-compliant with the intended use. Product description Design Submersible sewage pump as submersible monobloc unit for wet well and dry well in- stallation. WILO SE 2019-10... -
Page 11: Digital Data Interface
Design type Max. efficiency category (based on IEC 60034) ! (Wilo-EFC) Operation with frequency converter − • Digital Data Interface Immersed operating mode Non-immersed operating mode Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... - Page 12 The cooling system version is one of two types, depending on the motor size: ƒ FKT 20.2: The sealing chamber and the cooling system form a one-chamber system. The sealing chamber and the cooling system are filled with P35 coolant.
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Page 13: Monitoring Devices
Motor with Digital Data Interface NOTICE Note the instructions for the Digital Data Interface! Read the separate instructions for the Digital Data Interface and comply with them. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 14: Operating Modes
Permanent magnet motors have been approved for operation with the following fre- quency converters: ƒ Wilo-EFC Other frequency converters on request! Operation in an explosive atmo- sphere Asynchronous motor Permanent magnet motor FKT 20.2 FKT 27.x FKT 20.2...-P − Approval according to IEC-Ex ATEX approval FM approval − −... -
Page 15: Rating Plate
Starting mode Impeller diameter: original Impeller diameter: corrected korr *The date of manufacture is stated in accordance with ISO 8601: JJJJWww ƒ JJJJ = year Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 16: Type Key
Type key Type keys vary between individual hydraulics. The following section lists individual type keys. 4.8.1 Hydraulics type key: EMU FA Example: Wilo-EMU FA 15.52-245E Sewage pump x10 = Nominal diameter of pressure connection Internal performance coefficient Original impeller diameter... -
Page 17: Scope Of Delivery
Do not exceed the maximum bearing capacity of the lifting equipment! Check that lifting equip- ment is functioning properly before use! Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 18: Storage
Do not store the pump in rooms in which welding work is carried out. The resulting gases or radiation can corrode the elastomer parts and coatings. ƒ Seal the suction and pressure connection tightly. ƒ Protect the connection cable against kinking and damage. Maintain a constant bend radius! WILO SE 2019-10... -
Page 19: Installation And Electrical Connection
Work in chambers and narrow rooms as well as work involving risk of falling are dan- gerous work. Such work may not be carried out autonomously! A second person must be present for safety reasons. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... - Page 20 If several pumps are used in an operating space, minimum distances between the ation pumps and the wall must be complied with. Here there is a difference in the distances depending on the type of system: Alternating operation or parallel operation. WILO SE 2019-10...
- Page 21 Make sure that the pump cannot fall over or slip! 2. Carefully and slowly reach into the hydraulics housing through the pressure port and rotate the impeller. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
- Page 22 ⇒ If the operating fluid is clear, reuse the operating fluid. ⇒ If the operating fluid is contaminated (cloudy/dark), add new operating fluid. Fig. 4: Cooling system: Check the FKT 20.2 Dispose of the operating fluid in accordance with local regulations! coolant ⇒...
- Page 23 The connected pipe system must be self-supporting. The suspension unit must not support the pipe sys- tem! Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
- Page 24 A pressure hose is connected on the pressure side. If operated for longer periods of time, fix the pump firmly to the floor. This prevents vibration and ensures quiet and low- wearing running. WILO SE 2019-10...
- Page 25 The minimum level in the collecting space must be at the same height as the upper edge of the hydraulics housing! ƒ Max. ambient temperature: 40 °C (104 °F) Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 26: Electrical Connection
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 electrician in accordance with the locally applicable regulations. WILO SE 2019-10... - Page 27 Measure the resistor of the temperature sensors with an ohmmeter. The following ature sensor measured values must be complied with: ƒ Bimetallic strip: Measured value = 0 ohms (continuity). Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
- Page 28 Earth (PE) Insert the motor connection cables into the frequency converter through the threaded cable gland. Connect the wires as per the connection diagram. NOTICE! Widely position cable shielding! Fig. 10: Pump connection: Wilo-EFC 6.5.5 Digital Data Interface connection NOTICE Note the instructions for the Digital Data Interface! Read the separate instructions for the Digital Data Interface and comply with them.
- Page 29 A warning message or alarm signal is output upon exceeding the limit parameters. The motor winding additionally features PTC sensors to enable secure pump deactivation. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
- Page 30 Connect the PTC sensor via an evaluation relay. "CM-MSS" relay is recommended for this purpose. PTC sensor wiring diagram Temperature limiter 10, 11 PTC sensor connection Temperature controller and limiter High temperature connection Centre terminal Low temperature connection WILO SE 2019-10...
- Page 31 5 % above the cur- rent measured at the duty point. The following points must also be observed: Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 32: Commissioning
Making sure that the installation and operating instructions are read and understood by all personnel. ƒ All safety devices and emergency cut-outs on the system-side must be active and checked to ensure that they work properly. ƒ The pump is suitable for use under the specified operating conditions. WILO SE 2019-10... -
Page 33: Direction Of Rotation Check (For Three-Phase Current Motors Only)
Check the following prior to activation: ƒ Check whether the device has been installed properly and in accordance with the locally applicable regulations: – Has the pump been earthed? Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 34: Switch On And Off
The minimum permissible water level must reach the upper edge of the hydraulics housing! When operating the pump, observe the locally applicable regulations on the following topics: ƒ Work safety ƒ Accident prevention WILO SE 2019-10... -
Page 35: Shut-Down/Dismantling
ƒ For an extended period of shutdown, carry out a function test at regular intervals: – Period: monthly to quarterly – Running time: 5 minutes Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 36: Removal
DANGER! Disinfect the pump if the pump has been used in fluids that are haz- ardous to health! 8.4.2 Portable wet well installation ‡ Pump has been taken out of service. 1. Disconnect the pump from the mains. WILO SE 2019-10... - Page 37 4. Spray the pump with clean water from top to bottom. NOTICE! Use a suitable dis- infectant on contaminated pumps! Strictly observe the manufacturer’s specific- ations concerning use! Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 38: Maintenance And Repair
Collect any leakage of fluid and operating fluid immediately and dispose of it ac- cording to the locally applicable guidelines. ƒ Provide the tools required. ƒ If flammable solvents and cleaning agents are used, open flames, naked lights and smoking are prohibited. WILO SE 2019-10... -
Page 39: Operating Fluid
VwVwS 1999. When disposing of these media, comply with the corresponding local guidelines for propanediol and propylene glycol! Suitable for medical applications Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 40: Maintenance Intervals
9.4.1 Maintenance intervals for normal 8000 operating hours or after 2 years at the latest conditions Asynchronous motors • • • • • − • FKT 20.2 • • • • • • • FKT 27.x Permanent magnet motors • • •... -
Page 41: Maintenance Measures
Measure the resistor of the temperature sensors with an ohmmeter. The following ature sensor measured values must be complied with: ƒ Bimetallic strip: Measured value = 0 ohms (continuity). Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... - Page 42 Hot operating fluids can also spray out when pressure is released. This can result in scalding! To avoid injuries, the following instructions must be observed: • Allow the motor to cool down to the ambient temperature before opening the screw plugs. • Wear closed safety goggles or face protection and gloves. WILO SE 2019-10...
- Page 43 • Allow the motor to cool down to the ambient temperature before opening the screw plugs. • Wear closed safety goggles or face protection and gloves. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
- Page 44 NOTICE! Rinse to completely bleed the cooling system. 6. Check the operating fluid: Notify customer service if the operating fluid contains metal swarf! Fig. 13: Cooling system: FKT 20.2: coolant change 7. If a ball valve is installed on the outlet opening, close the ball valve.
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Page 45: Repairs
The following preconditions must be met prior to starting repair work: ƒ Pump cooled down to the ambient temperature. ƒ Pump is switched voltage-free and secured against being activated inadvertently. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... - Page 46 5. Slowly lift the motor and pull it off the hydraulics housing. Fig. 17: Changing the hydraulics housing CAUTION! Lift the motor vertically and do not tilt! Threaded bolts are damaged if the unit is tilted! 6. Insert a new seal ring at the motor flange. WILO SE 2019-10...
- Page 47 Wear safety gloves to protect against cuts! ▶ Suction port correctly set. Pump can be reinstalled. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 48: Faults, Causes And Remedies
⇒ Check the impeller to make sure that it runs smoothly, clean the hydraulics if necessary. 3. The sealing chamber control (optional) has interrupted the electric circuit (connec- tion-related) WILO SE 2019-10... - Page 49 ⇒ Have the components (impeller, suction port, pump housing) checked and re- placed by customer service. 8. Pipe system on the pressure side or pressure hose clogged. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 50: Spare Parts
Costs may be incurred if you request customer services! Please contact customer ser- vices for more information. Spare parts Spare parts are ordered via customer service. To avoid return queries and incorrect or- ders, the serial or article number must always be supplied. Subject to change without prior notice! WILO SE 2019-10... -
Page 51: Disposal
Pumping of highly flammable and explosive fluids (gasoline, kerosene, etc.) in pure form is strictly prohibited. There is a risk of fatal injury due to explosion! The pumps are not designed for these fluids. Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... -
Page 52: Electrical Connection
All the monitoring devices fitted must always be connected! 13.4.1 Motor with Digital Data Interface NOTICE Note the instructions for the Digital Data Interface! Read the separate instructions for the Digital Data Interface and comply with them. WILO SE 2019-10... - Page 53 Asynchronous motors: 30 Hz up to rated frequency (50 Hz or 60 Hz) – Permanent magnet motors: 30 Hz up to the stated maximum frequency as per rating plate NOTICE! The maximum frequency may be below 50 Hz! Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID...
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Page 54: Commissioning
Only use screws as stipulated by the manufacturer, which at a minimum correspond to a strength class of 600 N/mm² (38.85 long tons-force/inch²). 13.6.1 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! WILO SE 2019-10... -
Page 55: Appendix
(50 Hz or 60 Hz) is adjusted to the power requirement of the pump. More recent frequency Installation and operating instructions Wilo Motor FKT 20.2, 27.1, 27.2:, EMU FA, Rexa SUPRA, Rexa SOLID... - Page 56 Observe additional measures with regard to EMC regulations (choice of frequency converter, using filters, etc.). ƒ Do not exceed the rated current or rated speed of the motor. ƒ It must be possible to connect the motor’s own temperature monitoring (bimetallic strip or PTC sensor). WILO SE 2019-10...
- Page 59 WILO Pompa Sistemleri Jakarta Timur, 13950 Sistemas Hidraulicos Lda. San. ve Tic. A.S¸ T +62 21 7247676 4475-330 Maia 34956 İstanbul citrawilo@cbn.net.id T +351 22 2080350 T +90 216 2509400 bombas@wilo.pt wilo@wilo.com.tr Further subsidiaries, representation and sales offices on www.wilo.com Oktober 2018...
- Page 60 WILO SE Nortkirchenstr. 100 44263 Dortmund Germany T +49 (0)231 4102-0 T +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...
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