SIT 828 NOVAMIX Bedienungsanleitung Seite 11

C
Adjustment of offset value.
At a selected value of pneumatic pressure ∆p
(air), turn adjusting screw Q so that effective
value coincides with required theoretical
value.
Clockwise rotation:
characteristic shifts to the right.
Adjustment of gas flow to the pilot burner
Applications with intermittent pilot burner
Turn the "RQ" screw clockwise to reduce flow.
Overriding the pilot flow adjustment function
Applications with intermittent pilot burner
Screw the "RQ" setting screw fully in and then unscrew it two turns. Seal the adjustment.
Changing the gas family or group
Check that the appliance is suitable for operation with the gas family or group desired. Adjust the valve following the
instructions given in the booklet of the appliance. With III Family gas: override the pressure regulator and the gas flow
regulator to the pilot burner.
IMPORTANT: At the end of all setting and adjustment operations, check electrical insulation, gas seals and the
efficiency of the appliance. In particular, check that flame lift or light-back are impossible. After carrying out all
adjustments, fit the provided seals and/or block the setting screws with paint.
MAINTENANCE
The only maintenance operation permitted is the replacement of the coils of the automatic shut-off valves. This
operation must be carried out by qualified personnel only and according to the instructions provided in the instruction
leaflet supplied with the spare parts.
Pu
(air)
∆p
11