Pioneering for You
Wilo-Rexa MINI3
3094116 • Ed.02/2021-01
en
Installation and operating instructions
Page 1: ...Pioneering for You Wilo Rexa MINI3 3094116 Ed 02 2021 01 en Installation and operating instructions ...
Page 2: ......
Page 3: ... function 11 2 1 Description 11 2 2 Technical data 12 2 3 Type key 12 2 4 Scope of delivery 13 2 5 Functions 13 3 Application use 13 3 1 Intended use 13 3 2 Improper use 14 4 Transport and storage 15 5 Installation and electrical connection 15 5 1 Installation types 15 5 2 Installation 15 5 3 Electrical connection 17 6 Commissioning 19 6 1 Before activating 20 6 2 Switching on and off 20 6 3 Test ...
Page 4: ...en 9 3 General overhaul 25 10 Faults causes and remedies 25 11 Spare parts 26 12 Disposal 26 12 1 Information on the collection of used electrical and electronic products 26 12 2 Oil 27 ...
Page 5: ...r damage to property ƒ The loss of claims for damages The creation language of the instructions is Ger man All other languages are a translation Replacement of the installation and operating in structions The present installation and operating instruc tions can be obtained again via the following channels ƒ Download http qr wilo com 405 ƒ Contact the sales company www wilo com contact ƒ Order a fr...
Page 6: ...ollow the instructions can lead to serious injury ƒ CAUTION Failure to follow the instructions can lead to potentially irreparable property damage ƒ NOTICE Useful information on handling the product Symbols These instructions use the following symbols Danger caused by electric voltages Danger of explosion Warning risk of cuts and similar injuries Warning risk of health damage Personal protective e...
Page 7: ...health In stagnant water e g pump sump soakaway etc germs which are hazardous to health can form There is a danger of bacterial infections ƒ Clean and disinfect the product thoroughly after removal ƒ Inform all persons about the pumped fluid and the danger it poses 1 5 Personal protective equipment Wear the following protective equipment during transport installation removal and mainten ance ƒ Saf...
Page 8: ... by a qualified electrician or the cus tomer service ƒ Mains connection with correctly installed pro tective earth conductor ƒ Install the residual current device RCD with 30 mA ƒ Fuse protection at mains connection max 16 A ƒ Product without plug Electrical connection must be carried out by a qualified electrician 1 9 During operation ƒ The pumping of highly inflammable and ex plosive fluids petr...
Page 9: ...e sufficient air exchange Wear a breathing protection mask e g 3M Series 6000 with filter 6055 A2 Disinfect product 1 11 Clean and disinfect ƒ Wear protective equipment The protective equipment prevents contact with germs that are hazardous to health and the disinfectant ƒ If a disinfectant is used follow the manufac turer s instructions Wear protective equipment according to the manufacturer s in...
Page 10: ...re ments ƒ The product is not suitable for the following applications Frequency converter operation Operation on soft start control Operation within potentially explosive at mospheres 1 14 Operating fluid The oil is located in the sealing chamber It serves to lubricate the seal on the motor and pump side ƒ Absorb leakages immediately ƒ If major leakages occur contact customer ser vice ƒ If the sea...
Page 11: ...d 1 motor with integ rated operating capacitor and self switching thermal motor monitoring Stainless steel motor housing Oil filled sealing chamber with double sealing a rotary shaft seal is installed on the motor side a mechanical seal on the pump side De tachable connection cable with fitted shockproof plug Rexa MINI3 V A Sewage pump with vortex impeller and vertical threaded connection Hydrauli...
Page 12: ...ating plate Rated power See rating plate Max delivery head See rating plate Max volume flow See rating plate Activation type See rating plate Speed See rating plate Discharge connection G 1 IG Operating mode immersed S1 Operating mode non im mersed S3 20 2 Fluid temperature 3 40 C 37 104 F Fluid temperature short term for 3 min Max immersion depth 5 m 16 5 ft connection cable 2 m 6 5 ft Max immers...
Page 13: ...tructions 2 5 Functions 2 5 1 Self switching thermal motor monitoring If the motor becomes too hot the pump is deactivated After the motor has cooled down the pump is automatically switched on again 2 5 2 Float switch The Rexa MINI3 V A is equipped with a float switch The float switch is used to switch the pump on and off depend ing on the level ƒ Upper floater Pump on ƒ Lower floater Pump off 3 A...
Page 14: ...ping of explosive fluids Pumping of highly flammable and explosive flu ids 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 The submersible pumps must not be used for pumping of ƒ Untreated sewage ƒ Sewage containing faeces as per EN 12050 1 ƒ Drinking water ƒ Fluids containing hard components suc...
Page 15: ... for transport and storage ƒ Pack the pump when dry Wet or humid pumps may soften the packaging ƒ Storage conditions Maximum 15 60 C 5 140 F max humidity 90 non condensing Recommended 5 25 C 41 77 F relative humid ity 40 50 5 Installation and electrical connection 5 1 Installation types ƒ Stationary wet well installation ƒ Portable wet well installation The following installation types are not per...
Page 16: ...e pressure pipe is stress free do not screw it in too tightly ƒ The pressure pipe must not be smaller than the pump s discharge connection ƒ Seal pipe connections with Teflon tape ƒ Install all specified valves in accordance with local require ments gate valve non return valve ƒ Lay the pressure pipe frost proof ƒ Avoid air intake Air in the pump and in the pipe system can lead to delivery problem...
Page 17: ...e pressure hose 3 Slide the pressure hose onto the hose connection at the pressure port 4 Secure the pressure hose to the hose connection using the hose clip 5 Position the pump at the installation site CAUTION Use a hard surface or underlay at the in stallation site to prevent sinking on soft substrate 6 Lay the pressure hose and fasten it in the appropriate place e g drainage CAUTION If the pump...
Page 18: ...ion and will switch on depending on the fill level We recommend switching the socket on and off using a separate main switch 5 3 2 Connection Pump without a plug 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 quali fied electrician in accordance with the locally applicable...
Page 19: ...three phase AC motor The pump is suitable for connection to a clockwise rotating field Check the rotating field with a rotating field testing device before connection and correct if necessary CAU TION The pump is not approved for operation with a counter clockwise rotating field Carry out connection to a switchgear as follows Wire colour Terminal in switchgear Brown bn U Black bk V Blue bl W Green...
Page 20: ...t float switch The pump will switch on immediately after the plug has been inserted into the socket To switch off the pump pull the plug ƒ Pump with plug and float switch The pump will switch on and off automatically on reaching the switching level Upper floater Pump on Lower floater Pump off ƒ Pump with bare cable end without plug Switch the pump on and off via a separate control Read the install...
Page 21: ...t switch is operating correctly ƒ Connection cable is not damaged ƒ Pump free from deposits and encrustations 7 Removal DANGER Risk of infection due to fluids hazardous to health Hazardous germs can form in standing waters If there is a risk of germ formation observe the following points Ensure sufficient air exchange Wear a breathing protection mask e g 3M Series 6000 with filter 6055 A2 Disinfec...
Page 22: ...stations and clogging CAU TION Only carry out the pumping process under suit able operating conditions Allowing the pump to dry run is strictly forbidden Failure to observe these instruc tions will lead to irreparable damage to the pump If the above points are not guaranteed remove the pump 7 2 Portable wet well installation 1 Switching off the pump Disconnect the plug 2 Lift the pump out of the o...
Page 23: ...e the pump NOTICE If the suction port is very contaminated remove the cover plate for thorough cleaning 8 2 Cleaning the pump interior WARNING Sharp edges on the impeller and suction port Sharp edges can form on the impeller and suc tion port There is a danger of cuts and similar injuries Wear protective gloves In the case of severe dirt and encrustations remove the cover plate on the suction port...
Page 24: ...mmedi ately ƒ Dispose of the operating fluid at certified collection points 9 1 Operating fluid ƒ Capacity 220 ml 7 4 US fl oz ƒ Interval for oil change After 720 operating hours or 1x per year ƒ Oil types ISO VG class 32 ELFOLNA DS 22 Shell Turbo T 32 9 2 Oil change 1 Fig 3 Sealing chamber oil change 1 Sealing chamber screw plug Wear protective gloves Pump is removed cleaned and if necessary disi...
Page 25: ...lectrical connection of the pump Have a qualified electrician check fuses residual current devices 2 Thermal motor monitoring has been tripped Allow the pump to cool down The pump will start automatically Pump switches on off too frequently Check the switching cycle of the float switch Excessive fluid temperature Check the temperature If necessary use a different pump 3 Suction port strainer impel...
Page 26: ... If the points listed here do not rectify the fault contact cus tomer service Costs may be incurred when using customer service support Please contact customer services for more information 11 Spare parts Spare parts are ordered via customer service To avoid return queries and incorrect orders the serial or article number must always be supplied Subject to change without prior notice 12 Disposal 1...
Page 27: ...sult your local municipality the nearest waste dis posal site or the dealer who sold the product to you for in formation on proper disposal See www wilo recycling com for more information about recycling 12 2 Oil WARNING Risk of environmental and health damage due to incorrect disposal of oils Oil is harmful to health and the environment Do not dispose of oil with domestic waste or in the sewage s...
Page 28: ......
Page 29: ......
Page 30: ......
Page 31: ......
Page 32: ...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 ...
