Maintenance; Technical Data - Grundfos LCD 115 Serie Installationsanleitung

8. Maintenance

Warning
Before starting any work on pumps used to pump
liquids which could be constituted as being
hazardous to health, thorough cleaning/venting
of pumps, pits, etc. must be carried out
according to local regulations.
Warning
Before making any connections in the controller
or work on pumps, pits, etc., switch off the power
supply. Make sure that it cannot be accidentally
switched on.
We recommend that you carry out minor checks of the controller,
pump pits, tanks, pumps, etc. at regular intervals.
These checks must be carried out by authorised staff.
• Check the gaskets of the cable glands and on the front of the
cabinet.
• Check for possible deposits/sludge build-up in the pump pit/
tank. Sludge may settle in areas with almost stagnant liquid.
• Check for possible blockage on the inlet side of the pump.
A blockage will typically be a large solid object.
• If the controller has been installed in a particularly aggressive
environment, we recommend that you check the motor
protection contacts in order to identify possible chemical
attack resulting in corrosion. In typical installations, the motor
protection contacts will work for several years and do not
require any inspection.
The above list is not complete. The controller
may be installed in systems, installations and/or
Note
environments which require thorough and
regular maintenance.
10

9. Technical data

Voltage variants, rated voltages
• 1 x 230 V.
• 3 x 230/400 V.
Voltage tolerances
- 15 %/+ 10 % of rated voltage.
See also installation and operating instructions for the pump in
question.
Mains frequency
50/60 Hz.
See also installation and operating instructions for the pump in
question.
Supply system earthing
For TN systems and TT systems.
Short-circuit protection of power supply
Depending on variant. See nameplate.
Ambient temperature
• During operation: -20 - 50 °C (must not be exposed to direct
sunlight).
• In stock: -30 - 60 °C.
Enclosure class
IP65.
EMC (electromagnetic compatibility)
According to EN 61 000-6-2 and EN 61 000-6-3.
Material
ABS (acrylonitrile butadiene styrene).
Weight
Depending on variant. See nameplate.
Dimensions including cable glands
• LC, LCD 115 1-23A DOL: 410 x 280 x 150 mm.
• LC, LCD 115 9.2-25A SS: 410 x 280 x 150 mm.
• LC 115 14-43A SS: 600 x 280 x 195 mm.
• LCD 115 14-43A SS: 600 x 500 x 210 mm.
• LC, LCD 115 12A 40: 600 x 280 x 150 mm.
• LC, LCD 115 12A 40/150: 600 x 280 x 150 mm.
Outputs for alarm devices
Max. 230 VAC / max. 2 A / min. 10 mA / AC1.
Accuracy of sensor/controller
• ± 0.3 % of range, ± 1 digit.