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Grundfos Multilift MOG Installation And Operating Instructions Manual

One and two-pump lifting stations
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Multilift MOG, MDG
Installation and operating instructions
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GRUNDFOS INSTRUCTIONS

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  • Page 1 GRUNDFOS INSTRUCTIONS Multilift MOG, MDG Installation and operating instructions Other languages http://net.grundfos.com/qr/i/98127057...

  • Page 2: Table Of Contents

    Setup menu Information menu 2. Scope of delivery Description of fault indications Grundfos Multilift MOG (one pump) and MDG (two pumps) lifting Installation of lifting station stations are supplied complete with collecting tank, a sensor unit General description with cable and one or two pumps with cable, connected to the LC Guidelines for installation of lifting station 221 controller.

  • Page 3: General Description

    3. General description Grundfos Multilift MOG and MDG lifting stations are supplied complete with collecting tank, connection accessories, LC 221 controller and level sensor. The following gives a description of the components. Fig. 1 Multilift MOG front and rear view Fig.

  • Page 4: Applications

    (MOG) or multi-family houses, offices, schools, hotels, restaurants, public areas and other commercial buildings (MDG). 5. Product description Do not pump rainwater with the Multilift MOG and MDG lifting The MOG and MDG Multilift lifting stations are described in the stations for these two reasons: following sections: •...
  • Page 5 Nameplate, lifting station The tank volume and effective volume (volume between start and stop) for Multilift MOG and MDG lifting stations appear from the following table: Inlet level [mm] DK - 8850 Bjerringbro, Denmark Tank volume [l] Effective volume [l] Prod.-Nr.
  • Page 6 5.1.4 Motor cable 5.1.5 Grinder system The motor cable is fitted to the motor via a cable entry. The The grinder system consists of two parts, a stationary grinder ring enclosure class is IP68. The length of the cable is 10 m. and a rotating grinder head.

  • Page 7: Lc 221 Controller

    • motor protection with motor-protective circuit breaker and/or The level controller switches the Multilift MOG and MDG pumps current measurement as well as connection of thermal on and off according to the liquid level measured by the level switches and a runtime limitation sensor.
  • Page 8 – connecting a separate level switch to be used for flood Type LC 221.1.230.1.10.30/150 MPU detection outside the Multilift MOG or MDG. Lifting stations are often installed in a sump inside the basement - the 98189707 Prod.-No. lowest point in the building. In case of e.g. groundwater 1221 Serial no.
  • Page 9 5.2.1 Design Pos. Description The LC 221 level controller incorporates the necessary components to control and protect the pumps, such as relays and Display capacitors for single-phase motors, contactors and additional Operating buttons motor-protective circuit breaker for three-phase motors. Status LEDs The control panel offers a user interface with operating buttons ON-OFF-AUTO selector switch and a display for indication of operating conditions and fault...
  • Page 10 5.2.3 Internal layout of LC 221 Figure shows the internal layout of LC 221. Note: Cable connections for pos. 8-15: Use a cable tie if leads protrude more than 20 mm from the cable sheath. Fig. 13 Internal layout of LC 221 Pos.

  • Page 11: Operating Lc 221 Controller

    6. Operating LC 221 controller 6.1 Description of display The display of the LC 221 level controller is shown in fig. 14. Fig. 14 LC 221 display The table below describes the symbols shown in the display as well as the corresponding functions and indications. Symbol Function Description...
  • Page 12 Symbol Function Description In automatic mode, faults are indicated by means of a code, and in normal operation these two values are shown: • the liquid level in the tank, if the pump is not running • the current consumption, if the pump is running. If both pumps are running, the current consumption shown is the value for both pumps.

  • Page 13: Setup Menu

    6.2 Setup menu All settings are preset except for the start level. The start level depends on the inlet height and must be set during the startup phase. See section 8.4 Setting of LC 221. However, in case adjustments are required, settings can be made via the setup menu.

  • Page 14: Information Menu

    6.3 Information menu All status data and fault indications can be seen in the information menu. The information menu can be seen in all operating modes (ON-OFF-AUTO). To open the information menu, mark the symbol using the button and press the button .

  • Page 15: Description Of Fault Indications

    6.4 Description of fault indications If a fault occurs, the symbol will be visible, an audible alarm will be given by the buzzer and the fault code will be written by means of the 14-segment characters in the display. To see the kind of fault, if it is automatically reset and the code is not longer visible, open the fault log (see fig.
  • Page 16 Reset of fault Fault Displayed Flashing indications Meaning Description code text symbols Auto Alarm triggered by the additional float switch in the tank. The piezoresistive sensor has failed to detect the start level. The float switch starts a pump which runs for 20 seconds.

  • Page 17: Installation Of Lifting Station

    7. Installation of lifting station 7.1 General description When installing the Multilift MOG or MDG lifting station, make sure that all local regulations covering venting, access to the stations, etc., are observed. 7.1.1 Installation sketch Fig. 18 Installation sketch Pos.

  • Page 18: Guidelines For Installation Of Lifting Station

    Detailed description of pos. 5 7.2 Guidelines for installation of lifting station The guidelines for correct mechanical installation of a lifting Figure Description station are according to EN 12056-4. See section 7.1.1 Installation sketch. • Install the lifting station in a properly lit and vented room with 1 1/2"...

  • Page 19: Procedure For Installation Of Lifting Station

    Fig. 21 Untightened screw in outer ring Note move sideways accordingly (max. 72.5 mm). See fig. Multilift MOG and MDG lifting stations are supplied with loose screws in the outer ring of the turnable inlet disk. See fig. 21. Check and tighten all screws Caution to max.

  • Page 20: Installation Of Lc 221 Controller

    4. Prepare the connection for diaphragm pump (optional). 7. Connect the vent pipe. Use cup drill, ∅43, for DN 50 connection socket. To avoid The DN 70 vent port on top of the tank is open. Connect the sharp cutting edges, the hole must be deburred. vent pipe to the vent port via a flexible connecting piece.

  • Page 21: Mechanical Installation

    8.2 Mechanical installation 8.3 Electrical connection Warning Warning When drilling the holes, take care not to damage any The protective earth (PE) of the power outlet must be cables or water and gas pipes. Ensure a safe connected to the protective earth of the product. The installation.

  • Page 22: Setting Of Lc 221

    High temporary inflow can cause short-time high-level alarm. This situation may arise when a backwash filter of a swimming pool is Motor protection connected to Multilift MOG or MDG. The preset value is 5 seconds. Maintenance interval The maintenance/service interval can be set to 0, 3, 6 or 12 months and is indicated in the "SERVICE"...

  • Page 23: Startup

    • Check the tank for cracks and deformations. These may occur Multilift MOG or MDG and monitor the increasing liquid level in case of faulty assembly and therefore excessive stress on in the tank up to the start level. Check the starts and stops at the tank.

  • Page 24: Cleaning The Level Sensor

    If Grundfos is requested to service the lifting station, Grundfos must be contacted with details about the pumped liquid, etc. before the lifting station is returned for service. Otherwise Grundfos can refuse to accept the lifting station for service.

  • Page 25: Fault Finding

    2. Remove any blockage from the vent hole at the outlet port. d) The lifting station is undersized. Recalculate the inflow parameters and compare the result with the tank volume and pump performance. If you need a new product, contact the nearest Grundfos sales company.
  • Page 26 3. The pump(s) is/are a) The level sensor fails. The sensor gives Clean the level sensor starting/stopping too wrong signal. (see section 10.3 Cleaning the level sensor). frequently and even if b) The operating time protection is activated, Check that the outlet valve is open. Check the venting of there is no inflow.

  • Page 27: Technical Data

    12. Technical data 12.4 LC 221 controller 12.1 Lifting station Controller 1 x 230 V, 3 x 230 V, Depending on variant. See Voltage variants, rated voltages: Weight: 3 x 400 V nameplates Voltage tolerances for LC 221: - 10 %/+ 6 % of rated voltage 0-40 °C Temperature range: For short periods up to 60 °C...

  • Page 28: Disposal

    This product or parts of it must be disposed of in an environmentally sound way: 1. Use the public or private waste collection service. 2. If this is not possible, contact the nearest Grundfos company or service workshop. The crossed-out wheelie bin symbol on a product means that it must be disposed of separately from household waste.
  • Page 29 Appendix Fig. A - Dimensional sketch - MOG...
  • Page 30 Fig. B - Dimensional sketch - MDG...
  • Page 31 BOMBAS GRUNDFOS DO BRASIL Turkey Siu Wai Industrial Centre GRUNDFOS Pumper A/S Av. Humberto de Alencar Castelo Branco, GRUNDFOS POMPA San. ve Tic. Ltd. Sti. 29-33 Wing Hong Street & Strømsveien 344 Gebze Organize Sanayi Bölgesi CEP 09850 - 300...
  • Page 32 98127057 1218 ECM: 1217058 www.grundfos.com...

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