Sit 837 TANDEM Manual Del Usuario página 7

Adjustment of gas flow to the pilot burner (versions with pilot burner outlet)
• Turn the "Pilot" screw clockwise to reduce flow.
Gas family change
Check that the appliance is suitable for operation with the gas family in question. Adjust the minimum and maximum
outlet pressures in accordance with the values given in the appliance instruction booklet.
With gas of the third family:
block the adjustment of the gas flow to the pilot burner (versions with pilot outlet) by proceeding as follows:
• screw the "PILOT" adjustment screw fully in
• then unscrew it two complete turns
• seal the adjustment.
Changing gas group within the same family
Check that the appliance is suitable for operation with the gas group in question.
Check in the appliance instruction booklet if any operations are necessary when changing the gas group.
If so, adjust the minimum and maximum gas outlet pressures in accordance with the appliance manufacturer's
instructions and as stated previously.
IMPORTANT: At the end of all setting and adjustment operations, check electrical insulation, gas seals and the
efficiency of the appliance. In particular, it is necessary to ensure that the flame does not go out and that light back
does not occur at the minimum and maximum gas outlet pressures.
After carrying out all adjustments, fit the provided seals and/or block the setting screws with paint, taking care not to
obstruct the breather orifice of the pressure regulator.
ACCESSORIES
Connector for EV1 and EV2 type 150 L = 600 mm
Seal and screw for connector type 150
Elbow flange with screws and O-ring
Straight flange with screws and O-ring
Other accessories are available on request
MAINTENANCE
The only maintenance operation permitted is the replacement of the coils of the automatic solenoid 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.
0.960.114
0.960.108
0.906.265
0.906.266
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