CHAP.3
3.1 ELECTRICAL CONNECTION
The appliance should be electrically connected in compliance with regulations and laws in
force. All flight dishwashers are delivered for connection to a 400 V3N~ 50Hz power supply;
a) Before connecting the appliance, ensure that the voltage and frequency of
the mains electricity supply correspond to those indicated on the rating plate and that the
appliance is connected to an efficient earthing system;
b) On the rear panel of the appliance there is a terminal marked with the symbol
which serves for the unipotential connection between various appliances.
c) The appliance should be protected against overload and short-circuit by installing a
three-pole magnetothermal switch, with suitable breaking capacity, or an
undervoltage knife switch and suitable capacity fuses of the gL type between the
appliance and the power outlet and no more than 3 m from the electric control panel. A
circuit breaker against indirect contacts, with tripping or cut-off current co-ordinated
with the value of the resistance of the user's earthing system, should be installed
immediately downstream of the magnetothermal switch or the knife switch/fuses. The
switches are not supplied with the appliance and should be wall mounted in an
accessible position at a height between 0.6 and 1.70 m inclusive.
d) The cross section of the mains connecting lead, not supplied with the appliance, should
be at least the size given in the wiring diagram attached to the appliance. If it is not
protected by a conduit, use a cable with characteristics of at least the type H07RN-F.
To avoid dangerous overheating, the mains connecting lead should have no kinks for its
entire length (max. 3 m);
e) To connect the appliance mains connecting lead, remove the clamping screws of the
control panel cover and insert the cable through the cable clamp. Then connect it to the
terminals L1/L2/L3, and the earth wire to the yellow-green terminal, subsequently
tightening the cable clamp.
3.2 CONNECTION TO THE MAINS WATER SUPPLY AND TO THE DRAINAGE
SYSTEM
a) For trouble-free operation of the appliance, it is advisable to have the mains water
analysed beforehand to check that the hardness is between 5 and 10°F (French degrees).
If it is not within this range, it is advisable to install a suitable water softener.
b) Make sure that the mains water pressure is at least 0.2 MPa (2 Bar) and does not exceed
0.4 MPa (4 Bar).
c) The appliances are fitted with filter and pressure regulator. The recommended dynamic
pressure (when rinsing) is between 0.1 and 0.13 MPa ( 1-1.3 Bar), depending on the
model. If necessary, adjust it acting on the pressure-reducer A
d) The appliance (including those with pre-wash) should be supplied with hot water at a
temperature of about 50°C, connecting the delivery pipe to the threaded inlet fitting
(Dia. 3/4 " G) located below the same.
e) If the appliance has a steam suction and condensation system, it should be supplied with
cold water (temperature 10-15 °C) , connecting the delivery pipe to the threaded inlet
fitting (Dia. 3/4 " G) located below the same.
f) Having continuous operation, flight dishwashers need efficient drainage systems
working by fall. To position the drains,and according to what specified at points c-d-e of
this paragra refer to the data sheet supplied separately.
APPLIANCE INSTALLATION (for the installer)
25