Technical information

Assembly of primary air diaphragm:
Diagram showing the fitting of a primary air
diaphragm to single burner manifold (1-2-3-4-6) Diagram showing the fitting of a primary air
diaphragm for a two burner manifold type (7)
Warning the diaphragm plates should only
be used when using propane gas G31.
Gas conversion adhesive label:
Once the heater has been converted to propane ensure
that the correct label is fitted to the burner overtop of
the factory fitted one covering it completely. It is
recommended that the diameter of the nozzles be
checked also that the pressure corresponds to that
shown on the data plate provided
Ensure that all of the additional gas components are
correct for the installation (including storage tank, pipes
and pressure valves etc
Ensure that the pressure regulators are sealed after
carrying out the conversion.
GAS PRESSURE REGULATION
To regulate the gas inlet pressure :
• Connect a manometer onto the gas valve test
point (PM)
• Adjust the inlet gas supply regulator (customer
installation) to pressure indicated on data
plate:
To regulate the gas head pressure to the burner:
• Connect a manometer onto the gas valve test
point (PV)
• Adjust the pressure regulating adjusters RP1/
RP2 as detailed on next page to obtain correct
pressures indicated in table below:
Propane gas (G31)
TYPE 1 23456 7
Gas supply pressure 37 mBar
Head pressure max 35,5 35,0 35,5 35,5 34,5 35,5 34,5 mBar
Head pressure min 20,0 18,0 18,5 18,0 18,0 18,0 18,5 mBar
Gas inlet pressure must not exceed 60 mbar at the gas valve inlet.