Electrical Connection; Setting Of Lc 220 - Grundfos Multilift MSS Installation And Operating Instructions Manual

7.3 Electrical connection

Warning
The protective earth (PE) of the power outlet must be
connected to the protective earth of the product. The
plug must have the same PE connection system as
the power outlet.
Warning
The installation must be fitted with a residual current
device (RCD) with a tripping current less than 30 mA.
Warning
The product must be connected to an external main
switch with a minimum contact gap of 3 mm (0.12
inch) in all poles.
Warning
LC 220 must be connected in accordance with the
rules and standards in force for the application in
question.
Warning
Before opening the cover, switch off the power
supply.
The operating voltage and frequency are marked on the controller
nameplate. Make sure that the controller is suitable for the power
supply on which it will be used.
All cables/wires must be fitted through the cable entries and
gaskets.
The power outlet must be placed near the cabinet as the
controller is supplied with a 1.5 m cable.
Maximum backup fuse is stated on the controller nameplate.

7.4 Setting of LC 220

LC 220 has a 4-contact DIP switch. See fig. 16.
To make the settings, open the cabinet cover by means of the
bayonet fastener locks. The locks on the left side have hinge
strings.
During setting, the controller must be off circuit for at
least 10 seconds to ensure the correct configuration
Note
during startup after change of the DIP-switch setting.
The DIP switch has the following functions:
• setting of start level (switch 1). The factory setting is set to
inlet 250 mm above the floor to get the highest effective tank
volume. For floor standing toilets, the setting must be changed
to 180 mm. Starts and stops will be adjusted automatically.
• selection of automatic alarm resetting (switch 2)
• selection of service interval (switch 3)
• selection of sensor (switch 4).
The DIP-switch factory setting is shown in fig. 16.
Each individual switch (1 to 4) of the DIP switch can be set to
position OFF or ON.
When the DIP-switch setting is changed, the controller must be
switched off for at least 10 seconds!
Set the switches 1 to 4 as follows:
• Switch 1 (start level):
Pos. Description
The pump starts when the level in the collecting tank
ON
reaches 250 mm.
The pump starts when the level in the collecting tank
OFF
reaches 180 mm.
12
• Switch 2 (automatic alarm reset):
Pos. Description
The fault indication will be reset after the fault has
disappeared, meaning the indicator lights will be turned
ON
to off and the alarm signals to external alarm devices
and the built-in buzzer will be deactivated.
The alarm signal must be reset manually by switching
OFF
the selector switch to position "0".
• Switch 3 (service interval):
Pos. Description
The function for reminding that it is time for
maintenance is activated. The yellow indication light will
ON
be on when it is time for maintenance work.
The maintenance interval is 1 year (fixed value).
The function for reminding that it is time for
OFF
maintenance is deactivated.
• Switch 4 (sensor resetting):
Pos. Description
ON Safe (normal position, factory default)
Switch briefly to OFF for the sensor to adjust to the
OFF
ambient pressure. See service instructions.
HIGH
LOW
Fig. 16 DIP switch