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Instruction 

iSave 21

4

180R9222 / 521B1175 / DKCFN.PI.003.L1.02 / 04.2011

The current monitoring relays constantly measure the current in an electrical wire. The current is 

indirectly reflecting the torque on the electrical motor. If the measured value exceeds the adjusted 

threshold value the relay sent a signal to a main switch that cut of the power to the electrical motor. 

When using a current monitoring relays together with a VFD attention must be on choosing a VFD 

compatible relay.

A standard thermo relay is not an acceptable protection for the overload protection of the iSave. This 

is because of the slow reaction time of the relay.   

Danfoss VLT302 with two iSaves

Electrical schematic diagrams according to EN60204-1

 

Protection by a current 

monitoring relays

Содержание iSave 21

Страница 1: ...isave danfoss com Installation Operation and Maintenance Manual iSave 21 521B1174 DKCFN PS 003 A1 02 User manual...

Страница 2: ...tice This also applies to products already on order provided that such alterations can be made without subsequential chan ges being necessary in specifications already agreed All rights reserved Conte...

Страница 3: ...esign details 13 5 2 Sound level of the iSave 13 5 3 Materials 14 5 4 Temperature and corrosion 14 5 5 Dimensions and weights 14 5 6 Electrical motor data 14 5 7 How does the iSave work 15 5 7 1 Press...

Страница 4: ...iSave 25 7 Commissioning start up and shutdown 26 7 1 Safety regulations 26 7 2 Support 26 7 3 Commisioning 26 8 Service Maintenance 27 8 1 Safety regulations 27 8 2 Support 27 8 3 Maintenance schedul...

Страница 5: ...User manual iSave 21 5 180R9221 521B1174 DKCFN PS 003 A1 02 1 CE Declaration of conformity...

Страница 6: ...al motor and instrumentation Commissioning the unit Servicing the iSave unit mechanics and electrics Decommissioning the iSave unit Ensure that these instructions are always readily available to all p...

Страница 7: ...ription of how to start and stop the iSave in the preferred RO system set up Instruction Membrane cleaning of RO system with iSave unit Description of how to clean the membranes in the preferred RO sy...

Страница 8: ...and over pressure protection equipment is essential All electrical installation work must be carried out by authorised personnel in accordance with EN60204 1 and or local regulations Install a lockab...

Страница 9: ...pressure maximum 10 Bar 145 psig Low pressure outlet pressure minimum 1 Bar 14 5 psig High pressure outlet pressure maximum 83 Bar 1200 psig Torque maximum 36 Nm 26 5 lbf ft Maximum speed 1500 rpm Mi...

Страница 10: ...hould be drawn up and presented to the carrier at once The identification label on the iSave states the specific type the serial number and the code number of the iSave see fig below The last three di...

Страница 11: ...e units weight more than 20 kg Secure lifting slings around the part of the iSave and the back of the electric motor Make sure that the load is balanced before attempting the lift Never lift the iSave...

Страница 12: ...d at temperatures below 1 C Danfoss recommends using DOW FROST from DOW Chemical Company or Chillsafe mono propylene glycol from Arco Chemi cal Company If the iSave is protected against frost the stor...

Страница 13: ...mined for the complete unit system It is therefore important that the iSave unit is mounted correctly on a frame with dampers to minimise vibrations and noise It is also strongly recommended to use hi...

Страница 14: ...e chart below illustrates the corrosive resistance of different types of stainless steel re lated to NaCl concentration and temperature Depending on the NaCl concentration the fluid temperature must b...

Страница 15: ...econd sealing zone and back to the LP zone The flow through the HP side of the iSave is forced and controlled by the booster pump When the high pressure concentrate is flowing into the iSave it pressu...

Страница 16: ...ks go from the high pressure side to the low pressure side of the pressure exchanger and from the booster pump to the low pressure side of the pressure exchanger 5 7 4 Mixing There is no physical barr...

Страница 17: ...mp flow rate 4 and the permeate flow rate 8 The resistance to permeate in the membrane pressurises the HP loop The isobaric pressure exchanger technology in an SWRO or BWRO change the HP con centrate...

Страница 18: ...down It is recommended to disconnect all connections to the iSave and to thoroughly flush the piping before the iSave is connected to the inlet and outlet connections It is essential that the water us...

Страница 19: ...the iSave to about 750 rpm and keeping the pressure in the HP line at the minimum of 1 bar At this low pressure the iSave may only run for a maximum of 10 minutes Failing to flush the iSave with fresh...

Страница 20: ...be implemented to assure that the HP of the iSave is depressurised prior to the isolation of the LP side 5 15 Over pressurisation caused by the high pressure pump The HP pump may be able to generate...

Страница 21: ...valve 6 protects the entire system against pressure overload and relieves the water if the pressure exceeds the maximum set pressure If the high pressure pump is a positive displacement pump the pump...

Страница 22: ...f must be aligned to avoid bending caused by bolting to an uneven foundation A rigid foundation for the iSave assembly is important and the iSave assembly must be bolted to the foundation The bolts us...

Страница 23: ...to the iSave must be properly aligned to avoid stress on the iSave port connec tions Pipe connections must be aligned as shown in the figures below Don t use the iSave as a strain for hard piping The...

Страница 24: ...ions used must be of proper design and must be installed in accordance with the manufacturer s recommendations A failure to comply with this will or may result in personal injury and or damage to the...

Страница 25: ...r Special attention has to be on NON PROTECTED FREE ROTATING shaft on the electrical motor Ignorance will or could result in personal injury Running the iSave in the wrong direction for more than a fe...

Страница 26: ...that the following requirements are met The iSave has been properly connected to the electric power supply and is equipped with all protection devices in accordance with EN60204 1 Check that all moto...

Страница 27: ...le of preventive maintenance below will help ensure that the iSave provides years of trouble free performance One day after commissioning 1 Re check bolts in the foundation and the baseplate of the iS...

Страница 28: ...ling and replace if necessary 9 Audibly inspect the iSave assembly If there is irregular sounds or vibrations inspect the internals parts of the iSave and replace if necessary 10 Check power consumpti...

Страница 29: ...in the HP line is low Torque on iSave too high during operation Pressure difference from HP out 5 to HP in 10 is too high Clean or change membranes Debris in the booster pump or iSave Wear in the boos...

Страница 30: ...Membrane cleaning of the RO system with iSave unit 180R9214 10 3 Data sheet 521B1116 10 4 iSave part list 180R9209 10 5 iSave overload protection 180R9222 10 6 Hose assembly and installation 180R9084...

Страница 31: ...User manual iSave 21 31 180R9221 521B1174 DKCFN PS 003 A1 02 10 1 Instruction for start and stop of the SWRO with isave unit...

Страница 32: ...User manual iSave 21 32 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 33: ...www isave danfoss com Start and stop of the SWRO with iSave unit 180R9213 521B1164 DKCFN PI 003 F2 02 Instruction...

Страница 34: ...or to initial start up all piping connected with the iSave unit must be thoroughly flushed to ensure that no impurities enter the iSave Inadequate pre flushing will strongly influence the life of the...

Страница 35: ...permeate flow 17 almost equals the flow 2 from the high pressure pump Check the low pressure flow rates 12 and if required adjust flow to achieve balanced flow to the iSave unit It might be a benefit...

Страница 36: ...bars 43 5 psig is acceptable for less than 10 minutes within a period of 6 hours Also see datasheet for iSave If possible run the iSave at maximum 750 rpm 4 Stop the iSave unit 11 5 After minimum one...

Страница 37: ...User manual iSave 21 37 180R9221 521B1174 DKCFN PS 003 A1 02 10 2 Membrane cleaning of the RO system with iSave unit...

Страница 38: ...User manual iSave 21 38 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 39: ...www isave danfoss com Membrane cleaning of the RO system with iSave unit 180R9214 521B1165 DKCFN PI 003 G2 02 Instruction...

Страница 40: ...isconnecting the pipes there will be no accumulation of contaminations in the HP piping and HP valves See P ID no 2 The procedures below are based on Dow s Cleaning and Sanitization Cleaning steps des...

Страница 41: ...4 and stop the iSave 11 2 Stop the seawater supply pump 1 3 Disconnect pipe in joint 9 and connect the pipe to low pressure Full flow cleaning joint 16 4 Plug pipe in joint 9 5 Open valve 16 6 Pump mi...

Страница 42: ...l that the water used for the final pre flush is pre filtered to a level described in the datasheet 11 Remove plug 9 Water will flow out of the iSave and the iSave may start to rotate backward this is...

Страница 43: ...User manual iSave 21 43 180R9221 521B1174 DKCFN PS 003 A1 02 10 3 Data sheet...

Страница 44: ...User manual iSave 21 44 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 45: ...www iSave danfoss com Data sheet Energy Recovery Device iSave 21 40 MAKING MODERN LIVING POSSIBLE...

Страница 46: ...low at different rpm 5 5 Temperature and corrosion 6 5 1 Operation 6 6 Noise level 6 7 Filtration 6 8 iSave drawings 7 8 1 Complete iSave 21 40 without electric motor 7 8 2 Complete iSave 21 40 with e...

Страница 47: ...e with a constant high efficiency and minimum service required The vane pumps are fixed displacement pumps in which the flow is proportional to the number of revolutions of the driving shaft enabling...

Страница 48: ...t at 60 bar and booster pressure of 3 bar 5 5 kW 7 5 hp 10 kW 15 hp Weight including electric motor 95 kg 209 5 lb 254 kg 560 lb 3 2 Performance iSave 21 iSave 40 Peak efficiency including high pressu...

Страница 49: ...0721 2 1 Yes Yes The iSave can also be delivered with a marine motor an ATEX motor or any other special motor Please contact Danfoss RO Solutions for further information The diagram shows that the flo...

Страница 50: ...10 UN S32750 or the like Always flush the iSave with fresh water at operation stop in order to minimize the risk of crevice corrosion 316L Super Duplex 80 C 70 60 50 40 30 20 100 160 1600 1000 16000 1...

Страница 51: ...ription iSave 21 iSave 40 A Parallel key DIN 6885 mm inch 5 x 5 x 20 0 20 x 0 20 x 0 78 10 x 8 x 35 0 39 x 0 31 x 1 38 B High pressure connections 2 Victaulic 3 Victaulic C Low pressure connections 2...

Страница 52: ...ta sheet Energy Recovery Device iSave 21 40 8 521B1116 DKCFN PD 003 A4 02 01 2012 8 2 Complete iSave 21 40 with electric motor iSave 21 Code no 180F7000 95 kg iSave 40 horizontal Code no 180F7001 254...

Страница 53: ...and connect it to the electric motor min 3mm air space A B C A Flexible coupling B Bell housing C Motor shaft If alternative mounting is required please contact Danfoss RO Solutions sales organizatio...

Страница 54: ...pplies the iSave together with a baseplate and support brackets Although the baseplate is of heavy design it can flex or bend when it is bolted to the foundation Therefore the baseplate requires a sol...

Страница 55: ...r bleed valve 8 on the highest point of the high pressure piping to make sure air escapes the system in the bleeding process I The pressure relief valve 6 protects the whole system against pressure ov...

Страница 56: ...Data sheet Energy Recovery Device iSave 21 40 12 521B1116 DKCFN PD 003 A4 02 01 2012 12 Performance curves 12 1 Performance curves iSave 21 Differential pressure Low pressure Lubrication flow...

Страница 57: ...subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies Danfoss and the Danfoss logotype are trademarks of Danfo...

Страница 58: ...User manual iSave 21 58 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 59: ...User manual iSave 21 59 180R9221 521B1174 DKCFN PS 003 A1 02 10 4 iSave part list...

Страница 60: ...User manual iSave 21 60 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 61: ...isave danfoss com iSave 21 Parts list 180R9209 DKCFN PC 003 A2 02 Parts list...

Страница 62: ...rts list 2 180R9209 DKCFN PC 003 A2 02 03 2011 iSave 21 This part list provides an overview of the content of various service sets for the isave21 as well as exploded views of the iSave pressure excha...

Страница 63: ...X 6 2 Valve plate Super Duplex X 7 1 Cylinder drum Super Duplex 8 1 Shaft Super Duplex 9 2 Retrainer Super Duplex 10 3 Port connection 2 victaulic Super Duplex 11 1 Flange for shaft seal Super Duplex...

Страница 64: ...plate out PEEK X 6 1 Rotor Super Duplex 7 8 Vane PEEK X 8 4 Pin 7 x 55 PEEK 9 1 Side plate in PEEK X 10 2 Pin 6 x 10 AISI 303 X X 11 2 Pin 4 x 9 PEEK X 12 10 Bolt M8 x 16 CS A4 80 AISI 316 X 13 10 Bol...

Страница 65: ...11 iSave on base plate Exploded view page 9 Pos Qnt Designation 1 1 iSave 21 2 1 Base plate 3 1 Bell housing 4 1 Electric motor 5 1 Coupling 6 4 Bolt M10 x 30 A4 7 4 Washer 8 6 Bolt M6 x 16 A4 9 1 Plu...

Страница 66: ...Parts list iSave 21 Parts list 6 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view Vane pump...

Страница 67: ...Parts list iSave 21 Parts list 7 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view Pressure Exchanger...

Страница 68: ...Parts list iSave 21 Parts list 8 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view iSave...

Страница 69: ...Parts list iSave 21 Parts list 9 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view iSave on base plate...

Страница 70: ...User manual iSave 21 70 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 71: ...User manual iSave 21 71 180R9221 521B1174 DKCFN PS 003 A1 02 10 5 iSave overload protection...

Страница 72: ...User manual iSave 21 72 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 73: ...isave danfoss com Overload protection iSave 21 180R9222 521B1175 DKCFN PI 003 L1 02 Instruction...

Страница 74: ...tri cal motors and torque limitations on the iSaves must be provided by additional equipment This can be done by a mechanical coupling between the electrical motor and the iSave See page 7 or by a cur...

Страница 75: ...Instruction iSave 21 3 180R9222 521B1175 DKCFN PI 003 L1 02 04 2011 Danfoss VLT302 with one iSave Electrical schematic diagrams according to EN60204 1...

Страница 76: ...ue the relay sent a signal to a main switch that cut of the power to the electrical motor When using a current monitoring relays together with a VFD attention must be on choosing a VFD compatible rela...

Страница 77: ...Instruction iSave 21 5 180R9222 521B1175 DKCFN PI 003 L1 02 04 2011 Soft starter with one iSave Electrical schematic diagrams according to EN60204 1...

Страница 78: ...Instruction iSave 21 6 180R9222 521B1175 DKCFN PI 003 L1 02 04 2011 Soft starter with two iSaves Electrical schematic diagrams according to EN60204 1...

Страница 79: ...03 L1 02 04 2011 The iSave can be protected against overload by using a Torque Overload Safety Coupling between the electric motor and the iSave The Coupling can be purchase by the company www rw amer...

Страница 80: ...User manual iSave 21 80 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 81: ...User manual iSave 21 81 180R9221 521B1174 DKCFN PS 003 A1 02 10 6 Hose assembly and installation...

Страница 82: ...User manual iSave 21 82 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 83: ...ve strain on the assembly and to provide well organized installations to facilitate access for inspection and maintenance To prevent hose collapse and ow restriction hose bend radii should be kept as...

Страница 84: ...ll organized installations to facilitate access for inspection and maintenance To prevent hose collapse and ow restriction hose bend radii should be kept as large as possible Refer to hose s peci cati...

Страница 85: ...User manual iSave 21 85 180R9221 521B1174 DKCFN PS 003 A1 02 10 7 Service instructions assembly and disassembly...

Страница 86: ...User manual iSave 21 86 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 87: ...isave danfoss com Assembly and disassembly iSave 21 180R9219 521B1171 DKCFN PI 003 K1 02 Service instruction...

Страница 88: ...exchanger alone is 28 kg It is essential that the iSave is serviced in conditions of absolute cleanliness Tools needed for disassembly the iSave 6mm and 8 mm alien key 2 screwdrivers 2 M8 bolts Plast...

Страница 89: ...two bolts 8 Unscrew the bolts in the flange 10 Gently remove the cylinder barrel 5 Screw in the two M8 bolts 7 Wet the shaft and shaft seal with clean fil tered soap water Gently lever the shaft seal...

Страница 90: ...and the first valve plate onto the cylinder barrel NB don t scratch the valve plate by placing it on the plastic tube 13 Replace the O rings and the back up rings on the valve plate 15 Lubricate all t...

Страница 91: ...his is not critical 20 Location hole in port plate There are two different port plates in the iSave One of them can be mounted on both flanges in the pressure exchanger Make sure that they are assembl...

Страница 92: ...23 Check that the next port plate is correct 25 Position the port plate over the guide pin 27 Change the o ring in the flange and position the guide pin 24 Not correct port plate 26 Check that the po...

Страница 93: ...e flange 33 Shaft seal in right position 30 Wet the shaft seal with soap Do not use silicone grease Fit the shaft seal with the carbon surface upward 32 Using the plastic assembly tool provided large...

Страница 94: ...he flange Wet the parts with clean filtered soap water Before assembly 37 Gently adjust the spanner wrench around the Coupling and use it as back stop 39 In the table where the service is made place o...

Страница 95: ...01 2011 41 Remove all the bolts in the flange 43 Remove side plate 45 Gently remove the rotor NB Loose parts inside the rotor 47 Gently remove side plate 42 Remove the flange 44 Side plate removed 46...

Страница 96: ...in the rotor 53 Position the 8 vanes in the rotor The pins my be moved by use of a screwdriver 50 Position the side plate over the guide pin NB Make sure that the guide pin is located in the locating...

Страница 97: ...ver the guide pin 59 Fit the flange into both the bearing in the flange and the location pin in the stator 56 Replace the o ring on the flange and wet the flange properly with filtered water 58 Make s...

Страница 98: ...K1 02 01 2011 61 Change the o ring in the flange 63 Fit the coupling into the pump Glue the threat on the bolt with loctite 270 and tighten the bolt with 10 Nm Change the two o rings in the flange 62...

Страница 99: ...eal coupling onto the shaft of the pressure exchanger 66 Orient both the seal coupling and the 2 guide holes on the vane pump to fit into the pressure exchanger 65 Fit the polymer coupling on the stee...

Страница 100: ...Service instruction iSave 21 14 180R9219 521B1171 DKCFN PI 003 K1 02 01 2011 Exploded view Vane pump...

Страница 101: ...Service instruction iSave 21 15 180R9219 521B1171 DKCFN PI 003 K1 02 01 2011 Exploded view Pressure Exchanger...

Страница 102: ...Service instruction iSave 21 16 180R9219 521B1171 DKCFN PI 003 K1 02 01 2011 Exploded view iSave...

Страница 103: ...User manual iSave 21 103 180R9221 521B1174 DKCFN PS 003 A1 02 10 8 Operating and maintenance instruction electric motor...

Страница 104: ...User manual iSave 21 104 180R9221 521B1174 DKCFN PS 003 A1 02...

Страница 105: ...inimum distances must be observed It is to be avoided that the heated up cooling air is taken in again In case of installation in the open the motors are to be protected against direct environmental i...

Страница 106: ...e W rmebildung in den Wicklun gen The motor as well as possible accessories should always be kept clean free from dust traces oil or other grime As a good rule it is recommended to periodically check...

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