Grundfos Multilift MSS, Installation And Operating Instructions Manual

Page: 7 / 400

English (GB)
7
5.1 Lifting station
The Grundfos Multilift MSS lifting stations are supplied complete
with single- or three-phase submersible pumps connected to the
LC 220 controller incorporating a level sensor.
Type key, lifting station
Nameplate, lifting station
Fig. 2 Nameplate, lifting station
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, venting pipe
and a manually operated diaphragm pump, which is available as
an accessory.
Thus the collecting tank offers five horizontal inlets from the back
and the sides of the tank (4 x DN 100, 1 x DN 50) and two vertical
inlet connections at the top of the tank (1 x DN 100, 1 x DN 50).
The side and back inlets are 180 and 250 mm above the floor for
connection to direct wall-hung or floor-standing toilet according 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:
Setting to the relevant inlet level can be made via a DIP switch on
the control panel of the controller. See section
7.4 Setting of LC
220 .
The factory-set inlet level is 250 mm above the floor.
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.All parts in contact with the pumped liquid are
made of stainless steel. The pump has a mechanical shaft seal.
See more technical data in section
11. Technical data .
Single-phase motors have run capacitors.
Single- and three-phase motors are protected by a thermal switch
in the windings and an additional thermal circuit breaker to cut out
the motor in case of overload.
Three-phase motors:
If the phase sequence is wrong, the controller indicates fault and
prevents the pump from starting. For correction of phase
sequence, see section
5.2.2 Control elements and indicator lights
and fig. 8 .
Performance curves are available in the databooklet, which you
can download via the QR code or link below:
Example M SS .11 .3 .2
Multilift lifting station
SS = one pump
Output power, P
2
/ 100 [W]
1 = single-phase motor
3 = three-phase motor
2 = 2-pole motor
4 = 4-pole motor
TM
04
76
39
22
10
Pos. Description
1 Type designation
2 Product number
3 Production code, year and week
4 Frequency [Hz]
5 Number of 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
3
/h]
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
Typ
Prod.-Nr.
P. c.
f Hz
Serial no.
Phases
U V
A
kW
G kg
m
m
98127055 0197
I
1/1
P
1
Q
max
H
min
H
max
T Med
max
T
Amb
max
m /h
3
C
C
Made in Germany
96075419
DK - 8850 Bjerringbro, Denmark
1
2
3
4
5
6
10
11
12
13
14
15
16
17
18
20
19
7
8
9
Inlet level [mm] 180 250
Total tank volume [l] 44 44
Effective tank volume [l] 20 28
Note
If the motor is overloaded, it will stop automatically.
When it has cooled to normal operating temperature,
it will restart automatically.
http://net.grundfos.com/qr/i/98288126