Our LPG gas supply pressure is only 300mbar. I see the KLD P&ID lists 350 – 700mbar. This higher gas pressure is not available. Please also confirm that the gas valve proving system is configured to check the integrity of the pilot gas solenoid valves as well. We need to prove the integrity of these pilot gas valves is good so that at not stage the pilot gas system can leak gas into the combustion chamber. The attached P&ID does not seem to show any valve proving system on the pilot gas.