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Grundfos LC 231 Instructions Manual
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Grundfos LC 231 Instructions Manual

Grundfos LC 231 Instructions Manual

Single pump unit
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LC 231
Single pump unit
Installation and operating instructions
LC 231 single pump unit
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/99381576
GRUNDFOS INSTRUCTIONS

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Summary of Contents for Grundfos LC 231

  • Page 1 GRUNDFOS INSTRUCTIONS LC 231 Single pump unit Installation and operating instructions LC 231 single pump unit Installation and operating instructions Other languages http://net.grundfos.com/qr/i/99381576...
  • Page 3 LC 231 English (GB) Installation and operating instructions ........4...
  • Page 4 Removing the membrane ... 11 Grundfos GO Remote ... . 24 8.21 GENIbus ....24 Electrical connection .
  • Page 5 WARNING Basic settings are configured via the operating panel Indicates a hazardous situation which, if and advanced settings are configured with Grundfos not avoided, could result in death or GO Remote. Furthermore, you can read important serious personal injury.
  • Page 6 2.4 Application types You can choose between two application types: • Emptying • Fill. You can set the application type with Grundfos GO Remote. Emptying Pos. Description High level Stop level Start level P1: start level for pump 1...
  • Page 7 Related information Connect to Grundfos GO Remote to see which options are available for the input and output 8.1 Setting the application type with Grundfos GO terminals. Remote 8.15.1 Automatic operation Pos. Description 2.5 Terminals Digital input/output 1, configurable Digital input/output 2, configurable...
  • Page 8 Minimum to maximum ambient temperature 4.5 Installing a communication interface module Production site 3. Installation requirements Markings and approvals 3.1 Location 2.6.2 Type key for LC 231 Install the product in a location that meets the following requirements: Example LC 231 •...
  • Page 9 4. Mechanical installation 4.2 Removing the front cover The front cover must be removed to make any 4.1 Mounting the rubber seals connections or to install the Communication Interface Module (CIM). 1. Mount the supplied rubber seals on the cable glands.
  • Page 10 The cable glands must face downwards. 5.5 Connecting a level sensor 1. Loosen the screws and remove the front cover. 6.6 Configuring the IO terminals using Grundfos GO Remote Be careful not to damage the cable between the front cover and the back cover.
  • Page 11 4.5 Installing a communication interface 4.6 Removing the membrane module For applications where drainage is required, the membrane must be removed. You can fit a communication interface module (CIM) 1. Pull the membrane off the back of the control unit. in the control unit to enable communication with external systems.
  • Page 12 ‐ Remember to indicate where the main Changes or modifications not expressly switch is located by placing a label or approved by Grundfos may void the user's similar marking on the control unit. authority to operate the equipment. ‐ Make sure that the voltage between...
  • Page 13 Connect only the PTC wire and the moisture sensor wire. The common wire must be isolated. 4. Connect the power cables and pump cables In Grundfos GO Remote, you must select that according to the relevant electrical diagram, both the PTC wire and the moisture sensor wire...
  • Page 14 Three-phase connections for one pump without neutral, for Norway only Related information 4.1 Mounting the rubber seals 8.16.4 Setting the motor protection with Grundfos GO Remote Both solutions ensure that you can easily disconnect 10.2 Code 2 (Power phase missing) one pump from the controller, while the controller can 10.4 Code 9 (Power phase sequence wrong)
  • Page 15 Grundfos GO Remote. • For a not shielded wire, attach it to the Go to Settings > LC 231 IO terminals > Relay protection cover with a cable tie. output > Function. Default settings of the terminal blocks...
  • Page 16 4. Tie the wires with cable ties. 6.1 Connecting to Grundfos GO Remote Before connecting the product to Grundfos GO Remote, the Grundfos GO Remote app must be downloaded to your smartphone or tablet. The app is free of charge and available for iOS and Android devices.
  • Page 17 -- A of the pump) depending on the device connected to the terminals. 1. Go to Settings > LC 231 IO terminals. Single-phase 2. Select the terminal you wish to configure and Three-phase follow on-screen instructions.
  • Page 18 • Press this button to save changed values. Connect button: • Press this button to connect the control unit to Grundfos GO Remote via Bluetooth. Reset button: • Press this button during startup to reset settings and start over or to reset an...
  • Page 19 4. Continuously press OK until the display stops 8.2 Setting the sensor type flashing. The settings have now been stored. 8.2.1 Setting the sensor type with Grundfos GO Remote 8.4 Setting the stop level 1. Go to Settings > Level control > Sensor type.
  • Page 20 3. Set the Stop delay time. For digital sensors: 8.8 Power-on delay 1. Go to Settings > > LC 231 IO terminals With this function it is possible to delay the startup of 2. Select which terminal to configure. the pump after the power supply has been switched 8.5.2 Setting the high level with the operating...
  • Page 21 Anti- seizing > > Interval. The pump will operate for the You can set a time in Grundfos GO Remote in order number of seconds indicated by the user. to get a reminder that the pump needs service when the time comes.
  • Page 22 8.16.4 Setting the motor protection with Grundfos GO Remote Make sure that all settings are entered according to the pump and system 8.16.4 Setting the motor protection with Grundfos requirements to avoid malfunction. GO Remote You can set the current, temperature and moisture 8.16.1 Overheat protection...
  • Page 23 8.19 Setting units for Grundfos GO Remote GO Remote Changing units as described here will only change the units shown in Grundfos GO Remote. It will not 8.17 Alarm reset affect the units shown on the operating panel of 8.17.1 Resetting alarms and warnings manually products connected to Grundfos GO Remote.
  • Page 24 A lock symbol indicates which menus are locked. units shown in the operating panel of the product To view or change settings, you must enter the PIN connected to Grundfos GO Remote. It does not affect code. the units shown in Grundfos GO Remote.
  • Page 25 2. Write down the terminal connection of each wire New features and functions can be made available to ensure correct re-connection. during the product's life cycle. 1. Contact Grundfos to get your product software 3. Disconnect all wires connected to the CIM updated. module.
  • Page 26 10. Fault finding the product Fault finding and fault correction must be carried out by qualified persons. WARNING Electric shock Death or serious personal injury ‐ Switch off the power supply before you start any work on the product. ‐ Make sure that the power supply cannot be switched on accidentally.
  • Page 27 Alarm code 4 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Too many motor restarts is displayed in Grundfos GO Remote. Cause Remedy The pump has been blocked or partly blocked •...
  • Page 28 Alarm code 22 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Moisture in motor of pump is displayed in Grundfos GO Remote. Cause Remedy Moisture is detected in the motor of the pump.
  • Page 29 Alarm code 48 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Motor is overloaded is displayed in Grundfos GO Remote. Cause Remedy The pump is clogged. •...
  • Page 30 Alarm code 56 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Underload, current sensor measures a value too low is displayed in Grundfos GO Remote. Cause Remedy The measured current is too low.
  • Page 31 Alarm code 69 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Winding temperature too high is displayed in Grundfos GO Remote. Cause Remedy The pump is clogged, causing the pump to use more •...
  • Page 32 Alarm code 76 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Drive unit communication fault is displayed in Grundfos GO Remote. Cause Remedy Internal communication fault. •...
  • Page 33 • The warning symbol on the display turns yellow, and the pump's operating mode is unchanged. • Warning code Real-time clock out of order is displayed in Grundfos GO Remote. Cause Remedy The battery for the real time clock is missing or worn •...
  • Page 34 Alarm code 163 is shown on the display. • The alarm symbol on the display turns red, but the pump's operating mode is unchanged. • Alarm code Drive unit configuration fault is displayed in Grundfos GO Remote. Grundfos GO Remote Input Output...
  • Page 35 Alarm code 181 is shown on the display. • The alarm symbol on the display turns red and the pump stops. • Alarm code Signal fault, PTC input is displayed in Grundfos GO Remote. Cause Remedy There is a signal fault in the PTC input.
  • Page 36 Alarm code 191 is shown on the display. • The alarm symbol on the display turns red, but the pump's operating mode is unchanged. • Alarm code High water level is displayed in Grundfos GO Remote. Cause Remedy The defined start level did not start the pump.
  • Page 37 • The warning symbol on the display turns yellow and the pump's operating mode is unchanged. • Alarm code or warning code Contactor wear out is displayed in Grundfos GO Remote. Cause Remedy Warning: The contactor is almost worn out.
  • Page 38 11. Technical data 10-16 mm (0.4" - 0.6") 16-21 mm (0.6" - Pump cable 11.1 Electrical data 0.83"), with optional metal cable gland Voltage Sensor cable 5-8 mm (0.19" - 0.3") • 1 x 110-240 V - 10 %/+ 10 %, PE •...
  • Page 39 Operating temperature and current Maximum current and Model temperature combination IEC: 99369644 LC 231 12 A and 45 °C (113 °F) 1x 1-12 DOL PI Click here to submit your feedback UL: 99369651 LC 231 9.6 A and 45 °C (113 °F) 1x 1-9.6 DOL PI...
  • Page 40 Argentina Colombia Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Colombia S.A.S. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500industin Km 1.5 vía Siberia-Cota Conj. Potrero Unit 1, Ground floor, Siu Wai industrial 1619 - Garín Pcia. de B.A.
  • Page 41 Lithuania Serbia Turkey GRUNDFOS Pumps UAB Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. Smolensko g. 6 Omladinskih brigada 90b Sti. LT-03201 Vilnius 11070 Novi Beograd Gebze Organize Sanayi Bölgesi Tel.: + 370 52 395 430 Tel.: +381 11 2258 740...
  • Page 42 99381576 01.2025 ECM: 1413251 www.grundfos.com...