Grundfos Multilift M Series, Installation And Operating Instructions Manual

Page: 15 / 720

English (GB)
15
Type key, LC 221 controller
Nameplate, LC 221 controller
Controller type, voltage variant, etc. are stated in the type
designation on the nameplate situated on the side of the
controller cabinet.
Fig. 7 Example of an LC 221 nameplate
5.2.1 Design
The LC 221 level controller incorporates the necessary
components to control and protect the pumps, such as relays and
capacitors for single-phase motors, contactors and additional
motor-protective circuit breaker for three-phase motors
(> Multilift M22).
The control panel offers a user interface with operating buttons
and a display for indication of operating conditions and fault
indications.
Furthermore, it has an integrated piezoresistive pressure sensor
which is activated by compressed air directly via the pressure
tube inside the collecting tank. Finally, it has terminals for power
supply, connection to the pump and the inputs and outputs
mentioned in section
5.2 LC 221 controller .
The front cover is closed by four bayonet fastenings with quarter
turn locks. On the left side, the locks are extended and connected
to the cabinet bottom with hinge strings. The cabinet offers the
possibility of being mounted on a wall without opening it first.
A drilling template and six screws with rubber guides are
enclosed.
Fig. 8 Mounting of LC 221 controller
Example LC 221 .1 .230 .1 .10 .30
LC 221 = controller type
1 = one-pump controller
2 = two-pump controller
Voltage [V]
1 = single-phase
3 = three-phase
Max. operating current [A]
Capacitors [
μ
F]
Starting method:
[ ] = DOL
SD = Star-delta
TM0
5
187
0
3
3
11
Pos. Description
1 Type designation
2 Product number
3 Version number
4 Rated voltage
5 Power consumption
6 Maximum back-up fuse
7 Weight
8 Maximum pump input current
9 Production year and week
10 Serial number
11 Maximum voltage at potential-free contact
12 Maximum current at potential-free contact
13 Ambient temperature
14 Enclosure class
Type LC 221.1.230.1.10.30/150 MPU P.C. 1133
Prod. No. 97901151 V01 Serial No. 0001
U
N
V
contact max
1 x 220/240 V ~ 50/60 Hz 250 V
P
max
V
contact max
7 W I
Pump max
10 A 250 V
I
Fuse max
T
Amb
.: 0 to 40° C 16 A I
C <
10 kA
G 3.5 kg
IP 56
Made in Germany
2
1 3
4
5
6
9
10
11
13
12
7 8 14
TM
05
1
806
38
11