Grundfos LC 231 Installation And Operating Instructions Manual
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Grundfos LC 231 Installation And Operating Instructions Manual

Dual pump unit
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LC 231
Dual pump unit
Installation and operating instructions
LC 231 dual pump unit
Installation and operating instructions
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GRUNDFOS INSTRUCTIONS

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Summary of Contents for Grundfos LC 231

  • Page 1 GRUNDFOS INSTRUCTIONS LC 231 Dual pump unit Installation and operating instructions LC 231 dual pump unit Installation and operating instructions Other languages http://net.grundfos.com/qr/i/99480674...
  • Page 3 LC 231 English (GB) Installation and operating instructions ............5 Български...
  • Page 4 ..............541 LC 231...

  • Page 5: Table Of Contents

    8.14 Code 72 (Internal fault) ..... . 22 Connecting to Grundfos GO Remote ....10 8.15 Code 76 (Internal fault) .

  • Page 6: Installing The Product

    2.2.5 Installing a communication interface module 2.3.4 Connecting a level sensor Mount the cable glands on the control unit. 3.6 Configuring the IO terminals using Grundfos GO Remote 2.2.3 Disconnecting the front cover If you need to remove the front cover completely, you must remove the flat cable between the front cover and the back cover.

  • Page 7: Electrical Connection

    Pull out the flat cable that is connected to the circuit board. Do Be careful not to damage the cable between the front cover not remove the flat cable from the front cover. and the back cover. Push the module on to the three guide pins and into the socket. Press the module home, using your fingers.
  • Page 8 Before switching the power on, check all voltages with a Changes or modifications not expressly approved by multimeter and ensure that the voltage between neutral and Grundfos may void the user's authority to operate the each phase does not exceed 250 VAC. equipment.
  • Page 9 T2 T3 moisture sensor wire. The common wire must be isolated. In Grundfos GO Remote, you must select that both the PTC wire and the moisture sensor wire are connected, and select a cool- down time for the thermal protection.

  • Page 10: Starting Up The Product

    Grundfos GO Remote enables you to set functions and gives you or mains failure. The setting is made in Grundfos GO Remote. access to status overviews, technical product information and Go to Settings > LC 231 IO terminals > Relay output > Function. current operating parameters.

  • Page 11: Startup Wizard On The Operating Panel

    If the Bluetooth signal on the operating panel has been disabled for some reason, you are not able to connect with Grundfos GO • Test the dry-running function by starting the pump manually Remote.

  • Page 12: Application Types

    The liquid is pumped into a second tank • Fill. where the level sensors are installed. You can set the application type with Grundfos GO Remote. The pump will start to fill the second tank when Start level P1 is reached. Empty A second pump will start if the liquid level reaches Start level P2.

  • Page 13: Identification

    Factory code CIO1 GND CIO2 GND 24V GND 24V IP class Minimum to maximum ambient temperature Connect to Grundfos GO Remote to see which options are Production site available for the input and output terminals. Markings and approvals Pos. Description 4.6.2 Type key for LC 231...

  • Page 14: Control Functions

    • Fill Related information 3.3 Startup wizard on the operating panel 4.4 Application types 6.2 Setting the sensor type 6.2.1 Setting the sensor type with Grundfos GO Remote Pos. Symbol Description Go to Settings > Level control > Sensor type. Display Select the type.

  • Page 15: Setting The Stop Level

    For digital sensors: running. The specific level depends on the installed Go to Settings > > LC 231 IO terminals pump type. See the installation and operating Select which terminal to configure.

  • Page 16: Multipump Settings

    Remote It is possible to set a time delay before the next pump is started. You can set a time in Grundfos GO Remote in order to get a 6.11.1 Setting the multipump settings with Grundfos GO reminder that the pump needs service when the time comes.

  • Page 17: Motor Protection

    If there is moisture in the pump, then the moisture See position 3, curve with tripping. LC 231 cuts out the pump sensor will keep the series connection open until the pump is because the pump startup time exceeds 10 seconds and the opened and serviced.

  • Page 18: Alarm Reset

    Alternatively, switch off the main power on the nameplate. supply to LC 231 for a minimum of 30 seconds to clear the alarms. At a motor current of 22.5 A (10 x 2.25), a pump is to cut out after A blockage alarm is typically triggered when the motor starts and in- approx.

  • Page 19: Setting The Buzzer With Grundfos Go Remote

    6.22 GENIbus the fault. GENIbus, the Grundfos Electronics Network Intercommunications bus, is a fieldbus developed by Grundfos to meet the need for data 6.18.3 Resetting alarms and warnings on the operating panel transfer in all typical Grundfos motor or pump applications.

  • Page 20: Servicing The Product

    Remove the module from the control unit. • The alarm symbol on the display turns red and the pump stops. Fit the new module. • Alarm code Power phase missing is displayed in Grundfos GO Remote. Connect all wires. Cause 8. Fault finding the product The product is configured for 2 or 3 phases but only 1 phase is connected.

  • Page 21: Code 4 (Too Many Motor Restarts)

    The alarm symbol on the display turns red and the pump • Check and adjust the level control configuration with Grundfos GO Remote. stops. • Alarm code Too many motor restarts is displayed in Grundfos Cause GO Remote. The IO terminal is not configured correctly. Cause Remedy The pump has been blocked or partly blocked causing overload in •...

  • Page 22: Code 56 (Underload, Current Sensor Measures A Value Too Low)

    Alarm code 85 is shown on the display. stops. • The alarm symbol on the display turns red and the pump • Alarm code Dry run is displayed in Grundfos GO Remote. stops. Cause • Alarm code Internal fault is displayed in Grundfos GO Low water level in the pit and the pump stops due to the dry-running Remote.

  • Page 23: Code 163 (Motor-Drive Protection Function Measurement Fault)

    Check the functionality of each float switch. Remedy Related information • Go to Settings > Level control in Grundfos GO Remote and ensure that the configured range corresponds to the physical 3.6 Configuring the IO terminals using Grundfos GO Remote application type.

  • Page 24: Code 229 (Water On Floor)

    Remedy Sensor cable 5-8 mm (0.19" - 0.3") • Order a new LC 231 to avoid downtime. Contact Grundfos. Related information Mains input terminal IEC stranded or solid 2.5 to 16 mm 6.17.4 Setting the motor protection with Grundfos GO Remote UL stranded or solid AWG 20 to 6.

  • Page 25: Disposing Of The Product

    This product or parts of it must be disposed of in an environmentally sound way. Use the public or private waste collection service. If this is not possible, contact the nearest Grundfos company or service workshop. Dispose of the waste battery through the national collective schemes.
  • Page 26 Centre Turkey Tel.: +387 33 592 480 29-33 Wing Hong Street & 68 King Lam GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Fax: +387 33 590 465 Street, Cheung Sha Wan Strømsveien 344 Gebze Organize Sanayi Bölgesi www.ba.grundfos.com...
  • Page 27 99480674 07.2020 ECM 1288727...

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