6.5. SINGLE-PHASE PUMPS WITH CONNECTION PLUG
They are supplied with built-in capacitor and thermal protector, with H07RN-F, type power
supply cable with connection plug and float switch. Connect the plug to a power outlet with
protection wire (earth).
6.6. SINGLE-PHASE PUMPS WITHOUT CONNECTION PLUG
The specialised technician performing installation must make the electrical connection fol-
lowing the control board layout and, where required, must envision thermal protection and
start-up capacitors. However, if a plug is used, it must be compliant with the country's
legislation.
6.7. THREE-PHASE PUMPS
Install a suitable motor protector, with curve as per plate current, in the control board. With
three-phase pumps, when it is not possible to visually check the water level, install a float
switch connected to the control board to establish the automatic start and stop levels. The
thermal protectors in three-phase motors protect from overloading and not from running
with the motor blocked; the control board must therefore envision a suitable thermo-ampe-
rometric relay coupled to the command contactor.
6.8 RESPONSIBILITY
The Manufacturer does not vouch for the correct operation of the pumps and will not
be responsible for damages that might be caused by them, in case they are tampered
with or modified, run outside the recommended work range or in contrast with the
other instructions given in this manual.
The Manufacturer assumes no liability resulting from or omissions in this booklet, if
due to misprints or errors in copying. The company reserves the right to make mo-
difications to the products described herein, when considered necessary or useful,
without changing the essential characteristics of the product itsef.
18