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INSTALLATION UNDERNEATH EXTRACTION HOOD
1.4 CONNECTING UP GAS
Only qualified persons must be entrusted with installation operations, adapting the appliance to different types of gas,
commissioning and eliminating system faults. All current rules and regulations must be complied with.
The gas fittings, wiring and the premises on which the appliance is installed must comply with current rules and
regulations. In particular, for combustion, burners require 2 m3/h per kW of installed power.
Accident prevention and fire and anti-panic safety regulations must be enforced in places that are open to the public.
Check on the rating plate inside the door or on the left-hand side that the appliance has been tested and approved for
the type of gas that the user uses.
Check that the nozzles on the appliance are suitable for the available gas supply.
Check on the rating plate that the pressure reducer is adequate to the appliance's gas supply (Fig. 3).
TIPO / TYPE
MOD.
Nr.
QnKw
G30-G31
Kg/h
Vac
Unless the customer requests otherwise when placing his order, the appliance has been calibrated by the manufacturer
to use G20 at 20 mbar.
If gas supply pressure deviates by more than 10% from nominal pressure, fit a pressure regulator upstream of the
appliance to ensure that nominal pressure is maintained.
Do not reduce the diameter of the pipe between the reducer and the appliance.
Fit a gas filter upstream of the pressure regulator in order to optimise operating efficiency.
During initial installation and during maintenance or adaptation to another type of gas nominal heat input must be
measured. It can be measured by using the volumetric method with the aid of a litre counter or a chronometer.
After checking connection pressure and the diameter of the burner injectors, measure the hourly flow of the gas and
compare the recorded value with the value set out in the specifications table under the heading "gas consumption".
Deviation of ± 5% from nominal value is permitted.
INSTALLATION INSTRUCTIONS
CHECKS BEFORE INSTALLATION
CAT / KAT GAS/ GAZ G30
II2H3+
II2E+3+
II2E+3+
II2H3B/P
II2H3+
A1
II2H3+
II2L3B/P
II2H3+
II2H3+
II2ELL3B/P
I2E
II2H3B/P
G20
G25
m³/h
m³/h
II2H3B/P
II2H3B/P
I3B/P
II2H3+
II2HS3B/P
II2H3B/P
Kw
CHECKING THERMAL POWER
9
If the appliance is installed underneath an extraction
hood, comply with the following instructions:
The volume extracted must be greater than the volume
of burnt gas generated (see current regulations).
The gas supply to the appliance must be controlled
directly by the supply system and must be cut off
immediately pressure falls below the prescribed
values.
It must be possible to reconnect the gas supply to the
appliance only manually.
This must be fitted after the oven has been positioned
underneath the extraction hood.
The end of the appliance's evacuation pipe must be
placed inside the hood's base perimeter (Fig. 2).
G31
G20
Pmbar
30
37
20
Pmbar
20
28
37
Pmbar
20
28
37
Pmbar
30
30
20
Pmbar
28
37
20
Pmbar
28
37
20
Pmbar
30
30
Pmbar
30
37
20
Pmbar
28
37
20
Pmbar
50
50
20
Pmbar
20
Pmbar
50
50
20
Pmbar
30
30
20
Pmbar
30
30
20
Pmbar
30
30
Pmbar
28
37
20
Pmbar
30
30
25
Pmbar
30
30
20
Hz
Fig. 3
G25
G25.1
IT
25
FR
25
BE
DK
GR
ES
IE
NL
25
PT
GB
20
DE
LU
AT
CH
SE
FI
NO
CH
25
HU
CZ
Made in Italy
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