Grundfos Hydro Multi-B Series Installation And Operating Instructions Manual Download Page 1 | Manualshive

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GRUNDFOS INSTRUCTIONS

Hydro Multi-B

Installation and operating instructions

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Summary of Contents for Hydro Multi-B Series

Page 1: ...GRUNDFOS INSTRUCTIONS Hydro Multi B Installation and operating instructions ...

Page 2: ... 12 2 Frost protection 15 12 3 Service 16 12 4 Overview of inputs and outputs 16 13 Fault finding 18 14 Maintenance 19 14 1 Pumps 19 14 2 CU 323 19 15 Frost protection 19 16 Taking out of operation 19 17 Technical data 19 17 1 Pressure 19 17 2 Temperature 19 17 3 Relative humidity 19 17 4 Sound pressure level 20 18 Electrical data 20 18 1 Disposal 20 Warning Prior to installation read these instal...

Page 3: ...st be sent freight prepaid documentation supporting the warranty claim and or a Return Material Authorization must be included if so instructed GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES OR EXPENSES ARISING FROM INSTALLATION USE OR ANY OTHER CAUSES THERE ARE NO EXPRESS OR IMPLIED WARRANTIES INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH EXTE...

Page 4: ...ure in the following ways by cutting the required number of pumps in and out through continuous adjustment of the speed of the running CME pumps 3 3 1 Operating principle The user enters the required pressure of the system setpoint via the user interface of the CU 323 control unit The CU 323 adjusts the system performance according to the feedback received from the pressure transmitter installed o...

Page 5: ...o Multi B booster system is delivered in a recyclable packaging specially designed for transport by fork lift truck or a similar vehicle The forks of the fork lift truck must be at least 6 feet long 4 2 Handling Hydro Multi B booster systems must be lifted as shown in fig 4 During handling the lifting point should always be above the centre of gravity of the booster system Fig 4 Correct lifting of...

Page 6: ... ft 5 Nominal head ft 6 Nominal flow rate gpm 7 Weight lb 8 Motor power Hp of pumps with variable frequency drive 9 Code for pump versions 10 Number of E pumps 11 E pump type 12 System serial number 13 Control panel part number 14 Options 15 Country of origin 16 cULus Packaged Pumping Listing Category QCZJ Code Example Hydro Multi B E 2 CME 10 3 A 3 x 460 V 60 Hz Type range E System variants Two t...

Page 7: ... to parts of the building to ensure that they cannot move or be twisted 6 1 3 Foundation The booster system should be positioned on an even and solid surface for instance a concrete floor or foundation The booster system must be bolted to the floor or foundation 6 1 4 Vibration dampers To prevent the transmission of vibrations to buildings it may be necessary to isolate the booster system foundati...

Page 8: ...ith limit rods can be used to minimize the forces caused by the expansion joints Expansion joints with limit rods are always recommended for flanges larger than 6 inch The pipework should be anchored so that it does not stress the expansion joints and the pump Follow the supplier s instructions and pass them on to advisers or pipe installers 6 2 Electrical installation The electrical installation ...

Page 9: ... the system operating mode between Normal and Stop 2 Increases the setpoint value 3 Decreases the setpoint value 4 Resets all alarms 5 Changes the operating mode of the individual pumps between AUTO and OFF Each pump in the system has an Auto Off button 6 Enables Emergency Manual operation Note If a pump is set to Emergency operation it will run at 100 speed and the power supply to the CU 323 will...

Page 10: ... a maximum discharge pressure or a level limit has been exceeded Pos Indicator lights Status Description 10 Off Normal state Red Water shortage fault 11 Off Normal state Red Primary and or redundant sensor fault Maximum discharge pressure or level limit has been exceeded 12 pump LED Off The pump has stopped due to cascade operation The system is in OFF state The power supply has been switched off ...

Page 11: ...o Emergency 5 Close all pump discharge valves and prime all pumps The pumps are primed by opening cap on port of check valve positioned closest to pump and filling water into port The pump is primed when water no longer is able to fill into pump Reinstall cap on check valve port and repeat for all pumps 6 Switch on the relevant circuit breaker of pump to be started 7 Switch on the main disconnect ...

Page 12: ...is activated External stop via digital input has higher priority than local control This means that settings can be changed locally but they will not be effective until external stop has been deactivated The flow charts below show examples of how settings can be made Starting and stopping the system Changing the setpoint TM05 9701 4313 TM05 9284 3613 Starting the system Stopping the system On Off ...

Page 13: ...local settings are to be changed follow the flow chart examples below TM05 9287 3613 Keep pressed for 3 seconds See section 9 1 Local mode external stop not activated for changing settings in local mode or or or or or Note Note If the buttons are not touched for 3 seconds the CU 323 will revert to the initial display TM04 9583 4610 BUS LOC E st On Off On Off Keep pressed for 3 seconds See section ...

Page 14: ...changeover does not take place naturally and forced pump changeover may thus be required Once every 24 hours the CU 323 checks if any of the running pumps has a higher number of operating hours than the pumps that are stopped If this is the case the pump will be stopped and a pump with a lower number of operating hours will start 10 1 3 Minimum time between start and stop This function ensures a d...

Page 15: ...Take the enclosure class of the motor into account when cleaning The motor has maintenance free greased for life bearings 12 1 2 CU 323 The CU 323 is maintenance free It must be kept clean and dry Protect it against direct sunlight Furthermore the CU 323 must not be outside the ambient temperature range 12 2 Frost protection Pumps which are not being used during periods of frost should be drained ...

Page 16: ...ice kit 96884939 TM04 9282 3810 Group Description 1 Connection of power supply 2 Internal GENIbus connection 3 Fieldbus connection CIM module optional 4 Input for PTC sensor or thermal switch 5 Analog inputs 6 Digital output 7 Relay outputs 8 Digital inputs 9 Service connection Abbreviation Meaning DI Digital input DO Digital output RO Relay output AI Analog input NC Normally closed contact NO Nor...

Page 17: ...V 53 24 V Supply to sensor Short circuit protected 30 mA 54 AI2 Input for analog signal 0 20 4 20 mA or 0 10 V 55 GND All terminals except mains terminals must only be connected to voltages not exceeding 16 Vrms and 22 6 Vpeak or 35 VDC 6 77 Relay 1 Relay contact for starting and stopping mains operated pumps 79 Relay 2 80 Common 80 Common 81 Relay 3 7 70 Relay 1 C 71 Relay 1 NO 72 Relay 1 NC 73 R...

Page 18: ... 20 mA or 4 20 mA output signals are monitored by the Hydro Multi B Cable is broken or short circuited Repair or replace the cable CU 323 fault Power supply disconnected Connect the power supply The CU 323 is defective Contact Grundfos Unstable water supply from the Hydro Multi B Inlet pressure too low Check the suction pipe and the suction strainer if any Suction pipe or pumps partly blocked by i...

Page 19: ...ction loss in suction piping in feet At the highest flow the pump will be delivering Hv Vapor pressure in feet NPSH Net Positive Suction Head in feet NPSH can be read from the NPSH curve at the maximum capacity at which the pump will run See Grundfos CM CME Data booklet 98435269 L CM PG 001 Hs Safety margin minimum 2 feet If H is calculated as positive the pump can operate at a suction of maximum ...

Page 20: ...in pipes vibrations etc the actual sound pressure level of the Hydro Multi B system will be lower than 90 dB A Open circuit voltage 24 VDC Closed circuit current 5 mA DC Frequency range 0 4 Hz Note Note All digital inputs are supplied with PELV voltage Protective Extra Low Voltage Input current and voltage 0 20 mA 4 20 mA 0 10 V Tolerance 3 3 of full scale Repetitive accuracy 1 of full scale Input...

Page 21: ...3 227 3500 www grundfos us Grundfos Canada 2941 Brighton Road Oakville Ontario L6H 6C9 Canada Phone 1 905 829 9533 Fax 1 905 829 9512 www grundfos ca Grundfos México Boulevard TLC No 15 Parque Industrial Stiva Aeropuerto C P 66600 Apodaca N L Mexico Phone 011 52 81 8144 4000 Fax 011 52 81 8144 4010 www grundfos mx ...

Page 22: ...7 ECM 1201915 The name Grundfos the Grundfos logo and be think innovate are registered trademarks owned by Grundfos Holding A S or Grundfos A S Denmark All rights reserved worldwide Copyright Grundfos Holding A S www grundfos com ...

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