MD1.80.80.75.4.51D/450.SE Compact wastewater lifting station consist a package of one or two 450 litre collecting tanks, two horizontal submersible sewage pumps of the SE range, controller incl. analogue level sensor and connection accessories.
The 450 liter tank is made of airtight, corrosion free polyethylene and absolute gas and odour free. It is provided with
- three horizontal inlet sockets DN150 with one socket seal,
- vertical inlet connecting piece DN100,
- vertical connecting piece DN75 for venting with flex. connection piece and clamps
- two horizontal connecting pieces DN40 with one connection piece and clamps for manually diaphragm pump (accessory).
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The tank is designed with an inner patented chamfer and suction bends to avoid sedimentation and to reduce residual water. In case of additional collecting tank 4 connection sockets DN150 are placed at the sides.
Horizontal sewage pumps provides single channel impeller or vortex impeller for every request
- free passage up to 80mm for reliable and blockage free operation,
- a unique clamp system to dismantle hydraulic and motor within a minute,
- a watertight stainless steel cable plug for easy maintenance and service,
- double shaft seal cartridge for easy maintenance and service,- motor with thermal switches inside the winding
- patented cooling system for continuous duty at SE range
- motor with thermal switches inside the winding
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Isolating valves, non-return valves, discharge pipes, a manually operated diaphragm pump, bolts and gaskets as well as a third 450-litre tank are available as accessories.
An LC221 controller with microprocessor is equipped with display for full monitoring possibilities. The pump and sensor are connected to the controller with 4m or 10m cable and tube length. The power supply cable is 1,5m with plug (incl. phase inverter for 3 phase motor) Contactless, piezo resistive pressure sensor pluggable inside the cabinet, monitored by controller, accurate to the millimetre shown on display. Blockage free pressure tube inside the tank without movable parts inside wastewater.
The controller offer thermal motor protection and monitoring of pump operation. The thermal motor protection consists of thermal switches in the winding.
Controller functions:
- start/delta operation for pumps >5kW
- on/off, regular and failure changeover of two wastewater pumps based on a continuous signal from a piezo-resistive sensor
- motor protection via motor-protective circuit breaker and/or current measurement as well as connection of thermal switches.
- dry running motor protection via run-time limitation with a following emergency operation
- 24h automatic test runs during long periods of
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inactivity
- setting of delay times:
- stopping delay (time from the stop level is reached till the pumped is stopped)
- starting delay (time from the start level is reached till the pumped is started)
- alarm delay (time from a fault appears till an alarm is
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indicated) to prevents short-time high-level alarm in case of temporary high inflow to the tank.
- automatic current measurement for alarm indications
- operating indication of:
- operating mode (auto, manual)
- operating hours
- impulses (number of starts)
- highest measured motor current
- alarm indication of:
- pump status (running, fault)
- phase-sequence fault and missing phase
- thermal-switch failure
- high-water alarm
- time for service/maintenance (selectable).
- selection of automatic alarm resetting
- fault log of up to 20 alarms
- selection between different start levels
- selection of connected sensor type
- calibration of sensor (preset)
- selection of maintenance interval (0, 3, 6 or 12 months).
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As standard, the LC 221 has 6 potential-free outputs for:
– pump running – pump failure – high water-level alarm – common fault. 6 digital inputs for the following functions:
– connecting a pressure sensor board (pre-assembled) – connecting an analogue sensor (4-20mA or 0-5V) – connecting up to four level switches or pressure switches instead of analogue sensor – connecting a separate level switch to be used for flood detection outside the Multilift. Lifting stations are often installed in a sump inside the basement - the lowest point in the building. In case of e.g. groundwater inflow or water pipe burst, an alarm will be indicated by the controller. – connecting an external alarm reset – connecting the thermal switch of the motor.
The Multilift range is designed due to the standard EN12050-1, approved and monitored by external institute LGA. Further approvals are VDE, GHOST, CB, EMV
