Commissioning The Appliance; Electrical Connection - BERTO’S G6F2B Bedienungshandbuch

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Exhaust system
The appliances must be positioned in locations adapted
with a system for discharging the products of combustion
in respect of how much is prescribed by the norms of the
installation; such a system must comply with installation
regulations. Our appliances are classified as type "A1" gas
units (see the "TECHNICAL DATA" table):
they are not designed for the connection to a line for the
discharge of products of combustion.
These appliances must discharge the products of
combustion into appropriate hoods, or similar devices,
connected to a flue of proven efficiency, or they may be
connected directly to an outdoor vent.
If such an arrangement is not possible, the unit may be
connected to an air exhaust system which leads directly
outdoors, having a capacity no lower than required;
see the "TECHNICAL DATA" table, plus the air exchange
necessary, in order to make operators comfortable.

ELECTRICAL CONNECTION

EN
Connect the unit to the mains, following the provided
instructions (see Fig. 1):
1) Install, if not present, a disconnecting switch (A) close
to the appliance with a thermal magnetic release and
differential locking.
2) Open the doors (B), if present, and loosen the screws (C)
to disassemble the control panel (D).
3) Connect the disconnecting switch (A) to the terminal
board (H) as shown in the figure and in the electrical
diagrams at the end of this manual. The chosen
connection cable must have features similar to the
H07RN-F type cable with an operating temperature of
at least 80 °C and have a section suitable to the unit (see
the TECHNICAL DATA table).
4) Pass the cable through the passage and tighten
the cable stopper, connect the conductors in their
corresponding position to the terminal board and
attach them. The yellow-green ground conductor must
be longer than the others so that, in the event that
the cable stopper breaks, it disconnects itself after the
voltage cables.
5) If the power supply cord is damaged, replace it with
a special cable of H05RNF or H07RNF type: to prevent
any risk, have the cord replaced by the manufacturer or
their Technical Assistance or by a qualified person
Equipotential
The appliance must be connected to an equipotential
system. The specified terminal is indicated by a label with
the following symbol:
MODELS WITH WATER CIRCULATION
Models with water circulation in the recess require
plumbing connections to the drainage system.
IN THE RECESS

COMMISSIONING THE APPLIANCE

Before commissioning the appliance
Before commissioning the appliance, remove the
protective wrapping. Thoroughly clean the work-surface
and the outside of the appliance using lukewarm water
and detergent.
Start-up
Before starting the appliance up, check that its
specifications (category and type of gas used) match
those of the family and group of the gas available locally.
If not, adapt the appliance to the gas family or group
required (see paragraph "Running the appliance on other
types of gas").
Testing the power rating
Use the nozzles for the nominal capacity on the appliance.
Capacity can be of two types:
- nominal, as given on the data plate;
- reduced.
These nozzles are shown in the Burner Table.
The gas supply pressure must always be within the ranges
shown in the burners table.
The appliance will not work outside the above pressure
thresholds. If you wish to check the nominal capacity
further, you may do so using a gas meter according to
the so-called "volumetric method". It is normally enough,
however, simply to check that the nozzles are functioning
correctly.
Checking input pressure (Fig. 2)
Input pressure should be measured using a gauge (min.
resolution 0.1 mbar). Remove screw (F) from the pressure
socket and connect the gauge; after measuring, the screw
should be retightened absolutely airtight (F).
IMPORTANT: The pressure must be checked with all gas
equipment connected and operating.
Control of power with volumetric method
Using a gas counter and a stopwatch, you can measure
gas consumption in a given unit of time. This value will
be compared with the value E and is calculated as follows:
Burner power
E =
Gas heating power
The powers of the burner, both nominal and reduced,
calculated at the nominal pressure value, are obtained
by referring to the Burner Table. The value of the heating
power of the gas can be requested from the local gas
company.
Check of operation
Check whether the type of nozzles being used corresponds
to the type shown in the Burner Table.
Check whether the pressure reducer used has a flow rate
greater than the sum of the consumption flow rate of all
connected equipment. Check that the gas supply pipes
are adequate.