Proper use and maintenance will prolong the operational All products manufactured by Robot Pumps B.V. are life of your ROBOT pump. made with great care and according to our high internal This manual contains different warnings and safety standards.
Pump Operation & RW-R Maintenance Manual SAFETY AND ENVIRONMENT 3.1 Symbols On the pump In this manual Danger of physical injury General warning Danger ! Rotating parts ! Electrical hazard ! Electrical hazard ! EC-conformity symbol Attention ! 3.2 General safety instructions * Only trained and authorized personalmay install and * Always connect to a grounded circuit.
Operation & Pump Maintenance Manual RW-R TECHNICAL DATA 4.1 General Construction: The RW-R pump is a stainless steel (AISI316) non- clogging vortex impeller pump, designed to pump a High efficiency motor, standard class F wide variety of solids contaminated liquids. insulation (up to 155 C / 300 The impeller leaves a wide unobstructed passage...
Pump Operation & RW-R Maintenance Manual FIRST PUMP START After unpacking the pump, carry out the following check points: 5.1 Delivery-check Check for possible transport damage and especially check that the cable has not been nicked or damaged. Check for complete delivery. When the delivery is incomplete or damaged, please, contact your dealer immediately.
Operation & Pump Maintenance Manual RW-R 5.7 Motor check If in doubt about the condition of the motor or cable, Megger test motorwindings against grounding wire. The phase resistance against grounding wire should be at least 1 MOhm. Turn the impeller clockwise by hand, using a proper socket wrench (see fig.5.1) This should be possible without much force.
Pump Operation & RW-R Maintenance Manual 5.11 Medium temp. / max.motorload When the medium temperature is higher than 40 C, the maximum motorload must be reduced. The relationship between medium temperature and maximum absorbed motor current is shown below. Check the reading of the data plate against the reading of an Ammeter.
Operation & Pump Maintenance Manual RW-R INSTALLATION OPTIONS For the submersible pump the following installations are possible: -H Stationary wet installation with a header coupling type HK. -V Stationary wet installation with a guide bar quick release coupling type V. -F Freestanding wet installation.
Pump Operation & RW-R Maintenance Manual 6.2 INSTALLATION -V Stationary wet installation with a ROBOT quick-release guide bar coupling type -V. The pump is automatically coupled to the discharge. Except for the pump the following components are necessary: 1. Bottom elbow, rubber joint and coupling adapter;...
Operation & Pump Maintenance Manual RW-R 6.3 Checkpoint installation - V In some applications it is possible that the pump will not work due to presence of air in the volute. Lifting the pump a bit (25mm / 1inch) while running may solve the problem.
Pump Operation & RW-R Maintenance Manual 6.4 INSTALLATION - F Freestanding: semi-permanent fixed wet installation. Except for the pump the following components are necessary: 1. Hose or threaded connection, which is fastened to the pump; 2. Flexible hose or pipe; 3.
Operation & Pump Maintenance Manual RW-R MAINTENANCE 7.1 General Always disconnect the pump from the mains before inspection or disassembly. Clean the pump thoroughly. The motor housing can be hot when the pump is just switched off. 7.2 Maintenance schedule * After the first 20 running hours: Check the oil level (see chapter 7.5).
Pump Operation & RW-R Maintenance Manual 7.4 Cable entry Especially when the pump has been in use for a long time, the compression of the rubber cable seal might be deminished, which can cause leakage. By screwing-in the cable entry the seal will be retensioned. Unscrew the 2 hexagon socket screws (1).
Operation & Pump Maintenance Manual RW-R 7.5 Oil level 7.5.1 RW 20 Put the pump in a horizontal position so that the 2 hexagonal socket screws are on top (see fig.7.2). Unscrew the level plug (1) and the vent plug (2). The oil level should be at the lower side of the openings (see drawing).
Pump Operation & RW-R Maintenance Manual 7.6 Oil change Collection, storage and removal of the oil should be done according to the regulations of the local authorties. When necessary replace the sealing rings. Always use the right kind of oil ! (see chapter 7.3).
Operation & Pump Maintenance Manual RW-R 7.7 Motor housing 7.7.1 RW 20 Unscrew the inspection plug of the motorhousing (see Fig. 7.6 pos 1). Put the pump in horizontal position with the inspection opening downwards. If water is present this will come out this way. A small amount of water, due to condensation, is permissable.
Pump Operation & RW-R Maintenance Manual TRANSPORT AND STORAGE The pump can be transported and stored in both horizontal and vertical position. Never lift the pump by the motorcable or discharge hose. Always use the suspension bracket ! In case of long storage, the pump must be protected against moisture and heat.
Operation & Pump Maintenance Manual RW-R Water present: low resistance between terminals 1 and 7 (300-500 Ohm) terminals 2 and 4 open terminals 3 and 4 closed 9.2 Thermoswitches When your pump is equipped with thermoswitches, a “T” is stamped at position 24 on the dataplate. (see appendix 1).
Pump Operation & RW-R Maintenance Manual 10. TROUBLE SHOOTING 10.1 Safety When working on the motor, make sure Only qualified electricians may do the that the power is switched off. electrical work. When working on the pump make sure it When starting the pump ensure nobody cannot start unexpectedly! goes near rotating parts.
Operation & Pump Maintenance Manual RW-R APPENDIX 1: Data plate The main characteristics of the pump are given on the dataplate. At the first page of this book a label is found containing all the relevant information The dataplate can be found on the motorhousing at the opposite site of the cable entry. EU version US version Dimension...
Pump Operation & RW-R Maintenance Manual APPENDIX 2; Direct-on-line start motor (DOL) PUMP CABLE CONNECTIONS PUMP CABLE CONTROL PANEL =brown U,V,W =line =blue =thermostats =black =water detector =green/yellow =earth connection In some situations where a longer pump cable is used an extra 10 mm /AWG 8 earth cable is fitted to the motorhousing to fulfill the demands of the Low Voltage Directive.
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Operation & Pump Maintenance Manual RW-R EXAMPLE OF A DIRECT-ON-LINE CONNECTION DIAGRAM opposite direction of rotation motor in delta motor in star CODING e1, e2, e3 Line fuses e4, e5 Fuses, primary control-circuit Fuses, secondary control-circuit Maincontactor Motor protection circuit breaker with manual reset Auxiliary relay for motor protection Auxiliary relay for power failure Transformer...
Pump Operation & RW-R Maintenance Manual APPENDIX 3; Star-delta start motor (YD) PUMP CABLE CONNECTIONS PUMP CABLE = brown = blue = black = green/yellow CONTROL PANEL U,V,W = line = thermostats = water detector = earth connection In some situations where a longer pump cable is used an extra 10 mm /AWG 8 earth cable is fitted to the motorhousing to fulfill the demands of the Low Voltage Directive.
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Operation & Pump Maintenance Manual RW-R EXAMPLE OF A STAR-DELTA CONNECTION DIAGRAM opposite direction rotation motorwiring CODING e1, e2, e3 Line fuses e4, e5 Fuses, primary control-circuit Fuses, secondary control-circuit Motor protection circuit breaker with manual reset Maincontactor Relay delta connection Relay star connection Transformer Manual-off-auto selector switch...
Pump Operation & RW-R Maintenance Manual APPENDIX 4; Single phase motor PUMP CABLE CONNECTIONS PUMP CABLE =brown =blue =black =green/yellow CONTROL PANEL P, O =line =capacitor =thermostats =water detector (if fitted) =earth In some situations where a longer pump cable is used an extra 10 mm /AWG 8 earth cable is fitted to the motorhousing to fulfill the demands of the Low Voltage Directive.
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