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Summary of Contents for Sulzer RCP 250
- Page 1 Submersible Recirculation Pump Type ABS RCP 250 Installation and Operating Instructions www.sulzer.com...
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Page 2: Table Of Contents
Types of operation ..........................11 Maintenance ............................11 General maintenance hints ........................12 7.2 Oil filling and changing .......................... 12 Filling oil into the oil chamber ........................ 12 Cleaning ..............................12 Sulzer reserves the right to alter specifications due to technical developments ! -
Page 3: General
General Application areas The Sulzer recirculation pumps with water pressure-tight encapsulated submersible motors are reliable quality products designed for the following applications: • Pumping and circulation of activated sludge in treatment plants with removal of nitrogen (nitrification/denitrification). • Pumping of storm or surface water. -
Page 4: Safety
Protection type Figure 4: Nameplate Standard Version Safety The general and specific health and safety guidelines are described in detail in the Safety Instructions for Sulzer Products Type ABS. If anything is not clear or you have any questions as to safety make certain to contact the manufacturer Sulzer. Transport During transport the unit should not be dropped or thrown. The unit should never be raised or lowered by the power cable. The unit is fitted with a lifting device to which a chain and shackle may be attached for transport purposes. Any hoist used must be adequately dimensioned for the weight of the unit. -
Page 5: Mounting And Installation
Mounting and installation NOTE We recommend that original Sulzer installation accessories be used for mounting and installation of the pump. Particular attention must be paid to the safety regulations covering work in closed areas in sewage plants as well as good general technical practices. -
Page 6: Fitting And Removal Of The Recirculation Pump
Place bracket (5) at the flange and determine final position. Drill and tap two M12 holes in flange. Again, place bracket (5) at flange and fasten tightly using cylinder bolts (6) including washers. Fix the position of the pipe retainer (1) vertically above the bracket (5) and fit using masonry plugs (3). Do not yet fully tighten screws (2). Place guide tube (4) alongside the support cone on the bracket (5) and determine the final guide tube length. The measurement is taken to the upper edge of the cone on the pipe retainer (1). Shorten guide tube (4) to the correct length and place on the cone on the bracket (5). Press pipe retainer (1) upwards into the guide tube (4) so that there is no play in a vertical direction. Tighten hex screws (2) including spring washers. Fitting and removal of the recirculation pump The lifting device must be adequately dimensioned to suit the weight of the recirculation pump. The safety regulations as well as general good technical practice should be observed. Lowering of the recirculation pump along the guide tube The recirculation pump together with guide piece is connected into the guide tube as shown in Figure 8, and lowered along it until it automatically sits in its final position. -
Page 7: Laying Of The Power Cables
ATTENTION The power cable should be connected to the chain or wire rope in such a manner that it cannot become entangled in the propeller and that it is not subjected to any strain. After lowering of the recirculation pump the chain or wire rope should have the tension released. Figure 8: Lowering into position Laying of the power cables NOTE The cable brackets here are not supplied as standard with the recirculation pump. -
Page 8: Electrical Connection
The connection cable should be laid in such a manner that it cannot become entangled in the propeller and is not subjected to strain. Locate a second cable holder directly above the shackle (6) in a similar manner. Mount the other cable holders in a similar manner. As the distance from the pump increases it is possible to increase the distance between the cable holders. -
Page 9: Wiring Diagram
Wiring diagram Figure 10: Wiring diagram Legend U1, V1, W1 Live F1/FO Thermal sensor Earth Start Gr/Yel Green/Yellow Seal Monitor Neutral (common) 4.7.1 Checking direction of rotation The safety hints in the previous sections must be observed! When three phase units are being commissioned for the first time and also when used on a new site, the direction of rotation must be carefully checked by a qualified person. When checking the direction of rotation, the unit should be secured in such a manner that no danger to personnel is caused by the rotating impeller, or by the resulting air flow. Do not place your hand into the hydraulic system! The direction of rotation should only be altered by a qualified person. -
Page 10: Changing Direction Of Rotation
4.7.2 Changing direction of rotation The safety hints in the previous sections must be observed! The direction of rotation should only be altered by a qualified person. If the direction of rotation is incorrect then this is altered by changing over two phases of the power supply cable in the control panel. The direction of rotation should then be rechecked. NOTE The direction of rotation measuring device monitors the direction of rotation of the mains supply or that of an emergency generator. -
Page 11: Commissioning
Commissioning In explosive zones care must be taken that during switching on and operation of the pumps the pump section is filled with water (dry running) or alternatively is submerged or under water (wet installation). Ensure in this case that the minimum submergence given in the data sheet is observed, Other types of operation e.g. snore operation or dry running are not allowed. The safety hints in the previous sections must be observed! Before commissioning, the unit should be checked and a functional test carried out. Particular attention should be paid to the following:... -
Page 12: General Maintenance Hints
Lubricated-for-life ball bearings together with monitoring devices ensure optimum pump reliability provided that the pump has been connected and operated in accordance with the operating instructions. Should, nevertheless, a malfunction occur, do not improvise but ask your Sulzer Customer Service Department for assistance. - Page 16 Sulzer Pump Solutions Ireland Ltd. Clonard Road, Wexford, Ireland Tel. +353 53 91 63 200, www.sulzer.com...
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