Positioning; Hook-Up With The Gas System; Discharging The Products Of Combustion Under A Suction Hood; Dinamic Pressure - Eurotec MINIMA Série Instructions Pour L'installation, L'emploi Et L'entretien

2.4

POSITIONING

- The various units may be installed separately or combined with other units in the same range.
- This unit is not suitable for encasing.
- The distance from the side walls must be at least 100 mm.; should the distance be less or the material of the walls or floor be
flammable, it is vital to install heat insulation.
2.5

HOOK-UP WITH THE GAS SYSTEM

- The unit needs to be supplied with gas with the characteristics and pressure shown in Table II.
- The gas pressure is measured at the initial pressure test point with the burners on (see Fig. 1).
- The oven is tested and fitted for operating with natural gas H G20 - 20 mbar.
* N.B. Should the supply pressure vary more than +10% of the nominal pressure, it is advisable to install a pressure
regulator upstream from the unit to guarantee the nominal pressure.
- Hooking up to the gas mains must be done with a metal pipe of suitable cross-section and a shut-off valve must be installed
upstream to standards.
- After hooking up to the gas mains, check there is no leakage at the fitting points with the soap solution method.
2.5.1

DISCHARGING THE PRODUCTS OF COMBUSTION UNDER A SUCTION HOOD

UNIT TYPE: A
1
The gas oven should be positioned under a suction hood whose system must have specifications in conformity with the
standards. This unit needs at least 2 m
Check the ventilation in the kitchen. It must be in accordance with current standards.
2.5.2

DINAMIC PRESSURE

If the "dynamic" pressure of the gas upstream from the unit is lower than the minimum pressure of Table II, connection is
prohibited; furthermore, the fitter must notify the gas company that the supply pressure is too low.
N.B.: Should the pressure vary by more than +10% of the nominal pressure, e.g. for G 20 - 22 mbar it is advisable to install a
pressure regulator upstream from the unit to guarantee the nominal pressure.
Should the supply pressure exceed the maximum pressure of Table II, e.g. for G 20 - 25 mbar, notify the gas company.
Check whether the incoming and nozzle pressures correspond to the values given in Table II.
2.5.3

PRESSURE CHECK

INCOMING PRESSURE CHECK (Pe) Fig. 1
The pressure is measured with a pressure gauge 0 ÷ 80 mbars (precision at least 0.1 mbars).
The pressure test point Fig. 1 is on the G 1/2" gas ramp behind the instrument panel; undo the screw (A) of the pressure test
point (B), attach the silicone rubber hose to the pressure gauge, ignite the burner and note the incoming "dynamic" pressure.
Fasten the screw (A) back on with a gas washer (C), check there is no leakage with the soap solution method.
CHECKING THE +GENERAL+ THERMAL CAPACITY
Any transformation for another type of gas (see Sect. 3) must be performed by an authorized fitter or assistant.
The thermal capacity to check may be:
- the nominal thermal capacity given on the data plate
- the maximum thermal capacity in the maximum position
- the minimum thermal capacity in the minimum position.
First of all, check whether the unit is already fitted for the mains gas and pressure; in case of transformation for working with
other kinds of gas, carefully check the markings on the nozzles, the minimum screw and by-pass with Tables II Injectors Sect.
3
/h • kW T.C. (T.C. = Thermal Capacity).
- 17 -
GB