Grundfos CM Smart Installation And Operating Instructions Manual Download | Manualshive

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CM SMART

Installation and Operating Instructions

GRUNDFOS

INSTRUCTIONS

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Summary of Contents for CM Smart

Page 1: ...CM SMART Installation and Operating Instructions GRUNDFOS INSTRUCTIONS ...

Page 2: ...9 13 6 8 14 15 Contents ...

Page 3: ...SMART CM Pump CM3 CM5 ...

Page 4: ...CM Pump ...

Page 5: ... CHARGE The Pressure tank pre charge is pre set On site adjustment should be made with power off and delivery line open so that there is no pressure on the system The pressure tank pre charge should be 10 below cut in pressure ...

Page 6: ...e pump has stopped due to an operating fault The indicator light also illuminates briefly when the power supply is switched on 4 Reset The button is used for resetting of fault indications checking of DIP switch settings 14 15 Pressure Manager Pressure Manager The Pressure Manager must be fitted on the The Pressure Manager is a pressure regulator with The Pressure Manager start and stops the pump ...

Page 7: ...sufficient If the cycling alarm has been activated the pump can be restarted manually by pressing Reset When the auto reset function is enabled the pump will be restarted automatically after 12 hours in alarm condition To enable the function set DIP switch 7 to ON Maximum continuous operating time 30minutes When this function is enabled the pump will be stopped when the pump has been running conti...

Page 8: ... to the unit Note When the desired DIP switch settings have been made they must be enabled otherwise the PM 2 cannot detect the settings Checking the DIP switch settings When Reset is kept pressed for at least 3 seconds the light fields for the DIP switches set to ON will illuminate in the pressure scale The light fields illuminate from right to left This means that if the light field to the far r...

Page 9: ...blocked Switch off the power supply an clean or repair the pump f The setting of the motor protective circuit breaker is too low Set the motor protective circuit breaker according to the rated current of the motor I1 1 See nameplate 3 The motor protective circuit breaker trips out occasionally a The setting of the motor protective circuit breaker is too low See 2 f b Periodic supply failure c Peri...

Page 10: ...alve is stuck in completely or partly open position See 6 c See 5 c 4 The pump performance is unstable a Pump inlet pressure too low b Suction pipe is partly blocked by impurities Remove and clean the suction pipe c Leakage in suction pipe d Air in suction pipe or pump Check the inlet conditions of the pump Remove and repair the suction pipe Vent the suction pipe pump Check the inlet conditions of...

Page 11: ...c The non return valve is stuck in open position Clean or replace the non return valve Set DIP switch 5 to OFF Check and repair the pipework Checks Possible causes Fault Remedy 8 The green light field for 0 bar is off even if the power supply has been switched on a The fuses in the electric installation have blown Replace the fuses If the new fuses also blow check the electric installation b The e...

Page 12: ...is defective Repair or replace the PM unit Repair or replace the pump Repair or replace the PM unit Decrease the start pressure 16 System with pressure tank The red Alarm indicator light flashes once per period a Cycling The pressure tank has no precharge pressure or the tank size is insufficient Check the tank precharge pressure and recharge the tank if necessary If the size of the pressure tank ...

Page 13: ...hort period The pressure tank has no precharge pressure or the tank size is insufficient Check the tank precharge pressure and recharge the tank if necessary If the size of the pressure tank is insufficient set DIP switch 5 to OFF or replace the pressure tank Set DIP switch 5 to OFF b Too many start stop sequences within a short period The PM 2 is set to start stop with 1 bar differential pressure...

Page 14: ...14 Installation ...

Page 15: ...15 Installation ...

Page 16: ...16 Overall Diagram ...

Page 17: ...17 Overall Diagram ...

Page 18: ...18 Overall Diagram ...

Page 19: ...19 Overall Diagram ...

Page 20: ...Subject to alterations CM SMART 1115 Cert No KLR 0402930 Website www grundfos com Toll Free No 1800 88 PUMP 7867 ...

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