Product Description; Lifting Station - Grundfos Multilift M Montage- Und Betriebsanleitung

5. Product description

The Multilift M lifting stations are described in the following
sections:
• section

5.1 Lifting station

describing the lifting station with
collecting tank, pump, non-return valve and level sensor.
• section 5.2 LC 221 controller
as the functions and operation of the controller.
In section 7. Installation of lifting station
sections, the above components are described as one unit.
5.1 Lifting station
The Grundfos Multilift M lifting stations are supplied complete with
single- or three-phase submersible pumps connected to the
LC 221 controller incorporating a level sensor.
Type key, lifting station
Example
Multilift lifting station
Output power, P / 100 [W]
2
1 = single-phase motor
3 = three-phase motor
2 = 2-pole motor
4 = 4-pole motor
Nameplate, lifting station
1
DK - 8850 Bjerringbro, Denmark
2
Typ
Prod.-Nr.
3
P. c.
4
f Hz
5
Phases
6
U V
7
A
I
1/1
8
P kW
1
19
0197
98127055
20
9
Fig. 2 Nameplate, lifting station
Pos. Description
1 Type designation
2 Product number
3 Production code, year and week
4 Frequency [Hz]
5 Number of phases + voltage [V]
6 Voltage [V]
7 Full-load current [A]
8 Motor input power P1 [kW]
9 EAC and CE marks
10 Duty type
11 Serial number
12 Maximum flow rate [m
13 Minimum head [m]
14 Maximum head [m]
15 Maximum liquid temperature [°C]
16 Maximum ambient temperature [°C]
17 Weight [kg]
18 Identification code of the European standard
19 Notified body
20 Reference number for the declaration of performance
6
describing the controller as well
and the following
M .22 .3
10
11
Serial no.
12
3
m /h
Q
max
13
m
H
min
14
m
H
max
15
T Med C
max
16
T Amb C
max
17
G kg
Made in Germany
18
3
/h]
5.1.1 Collecting tank
The gas-, odour- and pressure-tight collecting tank is made of
wastewater resistant polyethylene (PE) and has all necessary
ports for the connection of inlet pipes, outlet pipe, vent pipe and a
manually operated diaphragm pump, which is available as an
accessory.
The collecting tank has a turnable, eccentric disk in the back
allowing adjustment of the inlet to any height between 180 and
315 mm above the floor. The most common heights are marked
beside the inlet. See section
lifting station. Furthermore, the collecting tank offers three
horizontal inlets in the sides (2 x DN 100 and 1 x DN 50), and two
vertical inlets at the top of the tank (1 x DN 150 and 1 x DN 50).
The centre of the horizontal inlets are 180 mm and 250 mm above
the floor.
The side and back inlets 180 and 250 mm above the floor are for
direct connection of a wall-hung or floor-standing toilet according
.4
to EN 33 and EN 37. Further sanitary appliances can be
connected to the other ports.
The tank volume and effective volume (volume between start and
stop) of the collecting tank appear from the following table:
Inlet level [mm]
Total tank volume [l]
Effective tank volume [l]
Setting to the relevant start inlet level must be made during the
start-up phase via the setup menu. See section
The first step after power supply connection is a start-up phase
with level setting.
To minimise sedimentation, the tank bottom is chamfered to lead
the wastewater to the pump.
5.1.2 Pump
The pump impeller is designed as a free-flow vortex impeller,
ensuring almost unchanged performance throughout the entire
life of the pump. The stator housing of the motor is made of cast
iron. The pump has a mechanical shaft seal.
See more technical data in section
Single-phase motors are protected by a thermal switch in the
windings and run via a capacitor inside the controller cabinet.
Three-phase motors are protected by a thermal switch in the
windings and an additional thermal circuit breaker in the
controller cabinet of Multilift M22, M24, M32 and M38 to cut out
the motor in case of overload.
If the phase sequence for three-phase pumps is wrong, the
controller will indicate fault and prevent the pump from starting.
For correction of phase sequence, see fig. 14. For direction of
rotation, see section
If the motor is overloaded, it stops automatically.
When it has cooled to normal operating temperature,
Note
it restarts automatically.
Performance curves are available in the data booklet, which you
can download via the QR code or link below:
http://net.grundfos.com/qr/i/98288126
5.1.3 Shaft seal
The pump has three shaft seals, the oil chambers in between are
filled for life and therefore require no maintenance. For
replacement in case of service, please see service instructions.
7.3 Procedure for installation of
180 250
92
34 49
6.2 Setup
12. Technical data.
10.2 Motor.
315
62
menu.