Smeg CPF36UGGWH Instruction Manual 3 - Page 18

Installation Incoming line pressure Incoming line pressure upstream from the regulator must be 1" (2.5 cm) W.C.P. higher than the manifold pressure in order to check the regulator. Incoming line pressure to the regulator should be as follows for operation and checking the regulator setting: NOTE: The range must be isolated from the gas supply piping system by turning off the respective manual shut-off valve during any pressure testing of the gas supply piping system. • Natural Gas: Set pressure to 5" W.C.P. Incoming line pressure of 6" - 10 1/2" W.C.P maximum. Lubricating the surface burner gas valves Over time, the surface burner gas valves may become stiff or jam. Clean them internally and relubricate. This operation must be carried out by a qualified technician. • LP Gas: Set pressure to 10" W.C.P. Incoming line pressure 11"- 13" W.C.P. maximum. 20