Pipe For Gas Connection; Checking Heat Output; Connection With Natural Gas H G20; Checking Primary Air To The Main Burners And Pilot Nozzles - Lotus PCA-74GP Guia Para La Intalación E Instrucciones De Uso

a) General indications (Rules valid for GB only)
- For all appliances:
Gas safety Regulations, 1984; Health and safety at Work Act, 1974 Codes of Practice, BS 8173, 1982, The Building
Regulations 1985; The Building Standards Regulations, 1981, the IEE Regulations and the by-laws of the local Water
Undertaking.
The local gas Region or LPG supplier and the local authority and the relevant recommendation of the British Standards
(latest editions) concerned.
The installation, transformation and repair of appliances for professional kitchens as well as removal due to
malfunction,
and the supply of gas, may be made only by means of a maintenance contract stipulated with an authorised sales office
and in observance of technical regulations.
The appliance can be installed by itself or in a series side by side with appliances produced by us. There must be a
minimum distance of at least 10 cm between the appliance and the sides of the nearby cabinets made of inflammable
material. Take suitable measures to guarantee thermal insulation of the inflammable sides, such as, for example, the
installation of protection against radiation. The appliances must be installed in a suitable manner, observing the safety
standards. The small feet are adjustable to level the appliance.
The gas connection must be done with steel or copper pipes, or otherwise with flexible steel pipes in compliance with
the national norms, if any exist. Each appliance must be provided with a cut-off cock for rapid interruption of the gas
supply. Once the appliance has been installed, it is necessary to check for gas leaks for the pipe fittings; do not use a
flame for this purpose but a non-corrosive substance such as soapy water or foamy substances as contained in leak-
finder sprays. All our appliances undergo careful testing: the type of gas, the operating pressure and the category are
indicated on the data plate.
NB: The year of the appliance manufacture is shown in item "N" on the data plate. The first two numbers (e.g. 12...)
represent the year of manufacture.
The appliances must be checked in such a way as to verify that the heat output is correct:
• The heat output (thermal power) is indicated on the data plate of the appliance.
• Firstly, check that the appliance can be used with the type of gas supplied; then check that the indication on the
plate corresponds to the gas to be used. For converting to another type of gas, check that the type of gas complies
with what is stated in this instruction manual.
The pressure is read with a gauge (minimum resolution of 0.1 mbar) inserted in the relative pressure outlet..
Remove the hermetically closed screw and insert the gauge pipe.
After reading, put back the screw tightening it hermetically and check for pressure leaks.
Connection for liquid gas G30/G31
The connection pressure for liquid gas is 30 mbar with butane and 37 mbar with propane.
Check the plate, read the pressure and verify that the description of the nozzle installed corresponds to the one supplied
by the manufacturer.

Connection with natural gas H G20

The connection pressure for natural gas is 20 mbar.
Check the plate, read the pressure and verify that the description of the nozzle installed corresponds to the one supplied
by the manufacturer.

CHECKING PRIMARY AIR TO THE MAIN BURNERS AND PILOT NOZZLES

All the burners are fitted with an air regulator by means of which the primary air can be varied thanks to an adjustable
bush that can be locked with a screw. In the "Burner Technical Data" table you will find the approximate values for the
"h" parameter (primary air). The flow of primary air must be regulated so there is no detachment of the flame when the
burner is cold or a return of the flame when the burner is hot.
The pilot air is regulated when the appliance is tested and inspected for the gas it is set for.
If you are going to change to a different type of gas, regulate the air by means of the adjusting bush until the flame stops
sputtering and becomes an intense blue colour.
GB IE
IT

PIPE FOR GAS CONNECTION

CHECKING HEAT OUTPUT

31
CH