Installing The Product; Location - Grundfos SLC Series Installation And Operating Instructions Manual

4. Installing the product

WARNING
Arc flash and electric shock hazard
Death or serious personal injury
- Wear appropriate personal protective equipment
(PPE) and tools while working on this equipment.
CAUTION
Toxic material
Minor or moderate personal injury
- Before starting any work on pumps used to pump
liquid which could be constituted as being
hazardous to health, clean and vent pumps, pits,
etc. thoroughly according to local regulations.
DANGER
Electric shock
Death or serious personal injury
- The installation must be carried out by authorized
personnel in accordance with local regulations.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product, pumps,
pits, etc., make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the system, switch off
the power supply and lock the main disconnect
switch in the Off position. Switch off any external
voltage connected to the system before working on
the system.
DANGER
Electric shock
Death or serious personal injury
- Connect the pump control panel in accordance
with the rules and standards in force for the
application in question.
DANGER
Electric shock
Death or serious personal injury
- The operating voltage and frequency are marked
on the controller nameplate. Make sure that the
controller is suitable for the power supply.
6
DANGER
Explosion
Death or serious personal injury
- Float switches placed in a potentially explosive
area must be connected via the intrinsically safe
version of the SLC. Do not install the intrinsically
safe version of the SLC with Ex barrier in the
potentially explosive area.
DANGER
Explosion
Death or serious personal injury
- Equipment used in potentially explosive areas
must be approved for the particular application
in each individual case. Furthermore, route the
cables into the potentially explosive area in
accordance with local regulations.
Use float switches of the same type as Grundfos
product numbers 98365984, 98365985 and
98365986, i.e. float switches with gold-plated
contacts suitable for low voltages and currents (40 V/
100 mA). All Ex-approved float switches are also
suitable. Connect the float switches as NO contacts,
i.e. brown and black leads, when using float
switches, Grundfos product numbers 98372085,
98372086 and 98372087.
Connect single-phase motors to an external
operating capacitor and in certain cases also to a
starting capacitor. Further details can be found in the
installation and operating instructions for the pump in
question.

4.1 Location

Do not install SLC, DLC pump control panels, and the intrinsically
safe version (with Ex barrier), if required, in potentially explosive
areas. Use only float switches approved for use in potentially
explosive areas. Connect the float switches via the Ex barrier in
the intrinsically safe version of the SLC, DLC pump control panel.
Install the SLC,DLC pump control panels at ambient
temperatures from -22 °F to +122 °F (-30 °C to +50 °C).
Enclosure class: NEMA4X.