Publicidad
Idiomas disponibles
Idiomas disponibles
personnel. In the first instance, examine the data shown on the technical data table of this manual, on the label and on the
electrical diagram. The envisaged connection is of the fixed type.
IMPORTANT: Ahead of each unit it is necessary to install an omnipolar main breaker, having a spacing among contacts of
at least 3mm; example:
- manual breaker of appropriate capacity, complete with fuse valves
- automatic breaker with respective magnetothermal relays.
2.8.1
EARTHING
It is essential to earth the unit.
To this purpose, it is necessary to connect to an efficient earthing system the terminals marked with the symbols (
on the line-receiving terminal board. The earthing system should comply with the law in force.
SPECIFIC WARNINGS
The electrical safety of this unit is assured only when it is correctly connected to an efficient earthing system as stated in
the electrical safety regulations in force; the Manufacturer declines any responsibility for the non-compliance with these
safety regulations.
It is necessary to verify this fundamental safety requisite and, in case of doubt, ask for an accurate testing of the system by
professionally qualified personnel.
The Manufacturer cannot be deemed responsible for any damages caused by the lack of unit earthing.
ATTENTION: NEVER INTERRUPT THE EARTH WIRE (Yellow-Green).
2.9
ADJUSTING THE GAS PRESSURE AT THE BURNER
2.9.1
SIT 820 VALVE
Foreword:
The SIT 820 NOVA valves are multi-functional controls designed to optimize the performance of modern gas appliances:
safety, quiet operation, durability.
SIT is certified, from product development to production and quality control, to ISO 9001.
Main features of the valves:
SIT 822 NOVA: Automatic multi-functional valve with
ON-OFF safety solenoid valve EV1 in class B and
adjustment solenoid valve EV2 in class RM, both with
silent operation.
- Passing from natural gas to L.P.G. is extremely easy.
- Setting the pressure at the nozzle is easy.
- Servo-assisted pressure regulator.
- Slow ignition device "1°Step".
Q mass. = Maximum heat capacity
Qs = Slow ignition capacity
tr = Slow ignition time variable
from 3 to 12 sec.
Reset time < 10 sec.
SLOW FIRING
GB
2
3
B
4
E
A
1 - Gas outlet
2 - 1N AC 220...240 V 50 Hz. EV2
3 - Pressure adjustment under screw cap
4 - 1N AC 220...240 V 50 Hz. EV1
5 - Pressure gauge tap, gas inlet side
6 - Pressure gauge tap, gas outlet side
7 - Gas inlet
- 20 -
1
7
6
5
) placed
Tav. 1
Publicidad
