Necta Astro, Installation, Operating And Maintenance Manual

Page: 15 / 84

11
© by NECTA VENDING SOLUTIONS SpA 0210 206-00
OVERFLOW DEVICE
The water inlet solenoid valve (see Fig. 14) is equipped with
an overflow device which mechanically stops the water inlet
if there is a malfunction in the solenoid valve or in the boiler
water level control device.
To restore normal operation, proceed as follows:
- disconnect the power from the machine;
- drain the water contained in the overflow hose;
- shut off the water supply using the tap outside the
machine;
- loosen the nut which secures the solenoid valve supply
hose to relieve the water mains residual pressure and then
tighten again (see Fig.14);
- open the tap and switch the machine on.
CONNECTING TO THE POWER SUPPLY
The vending machine is designed to operate under a single-
phase 230 V~ voltage and is protected by 15 A fuses.
Before making the connection, ensure that the rating
corresponds to that of the power grid, and more specifically:
- the supply voltage rating must be within the range
recommended for the connection points;
- the main switch should be capable of withstanding the
peak load required, and at the same time ensure proper
omnipolar disconnection from the power grid with an
opening gap of the contacts of at least 3 mm.
The switch, the power outlet and the plug must be
located in an easily accessible position.
The electrical safety of the machine is ensured only when
it is correctly earthed according to the safety standards in
force.
This fundamental safety requirement must be duly
verified, and if in doubt the system must be carefully
tested by qualified technicians.
The power supply cable is of the type with a fixed plug. Any
replacement should be carried out by qualified personnel
only, using exclusively cables of the type HO5 RN - F or
HO5 V V-F or H07 RN-F with a section of 3x1-1.5 mm
2
.
Do not use adapters, multiple sockets and/or exten-
sions.
THE MANUFACTURER DECLINES ALL RESPONSI-
BILITY FOR ANY DAMAGE CAUSED BY NON-COM-
PLIANCE WITH THE ABOVE MENTIONED PRECAU-
TIONS.
Fig. 14
1 - Water inlet fitting (3/4 gas)
2 - Water supply hose
3 - Overflow hose
CONNECTING THE MACHINE
TO THE WATER MAINS
The machine must be connected to the drinking water
mains, taking into account law provisions in force in the
country where the machine is installed.
The water pressure must be 5 to 85 N/cm
2..
Run some water from the mains until it is clear and without
impurities.
Use a hose capable of withstanding the water mains
pressure and suitable for use with foodstuff (min. inside
diameter of 6 mm) to connect the water supply to the fitting
(3/4" gas) of the water inlet solenoid valve (see Figure 14).
Fig. 13
1 - Label support
2 - Clamping tangs
3 - Fastening screws
4 - Product labels
It is good practice to install the water supply tap
outside the machine in an easily accessible position.
Fig. 15
1 - Lift cover
2 - Cable clamp
3 - Cable from the mains