Grundfos LC 221 Series, Installation And Operating Instructions Manual

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English (GB)
18
5.2.2 Control panel
Fig. 11 Control panel of LC 221 one-pump controller (MOG)
Fig. 12 Control panel of LC 221 two-pump controller (MDG)
Display (pos.1)
The display shows all relevant operating data and fault
indications. The operating and fault indications are described in
section
6.1 Description of display .
Operating buttons (pos. 2)
The level controller is operated by the operating buttons placed
under the display. The function of the operating buttons is
described in the table below:
Status LEDs (pos. 3)
The upper LED (green) is on when the power supply is on.
The lower LED flashes (red) in case of fault to make the fault
visible from a long distance and is thus an addition to the display
symbols and fault codes.
Selector switch (pos. 4)
T
M
05
18
05
38
11
T
M
05
18
60
38
11
Pos. Description
1 Display
2 Operating buttons
3 Status LEDs
4 ON-OFF-AUTO selector switch
Operating
button
Description
• go left in the main menu.
• go up in the submenus.
• decrease values in the submenus.
• confirm a selection.
• activate the submenus.
• reset the buzzer.
• go right in the main menu.
• go down in the submenus.
• increase values in the submenus.
1
2
3 4
1 3
4
2
1
2
3 4
1 3 4
2
Switch Description of function
The operating mode is selected by the
ON-OFF-AUTO selector switch which has three
different positions:
POS I:
Starts the pump manually. The operating time
protection is active and indicates alarm after
3 minutes. Normal operating times are up to max.
90 seconds with pipework DN 32 and 60 seconds
with pipework DN 40.
POS O:
• Stops the pump when running and cuts off the
power supply to the pump. The three symbols
"Settings locked", "Information" and "Setup" will
be visible.
• Resets fault indications.
POS AUTO:
Automatic operation. The pump will start and stop
according to the signal from the level sensor.