Service And Maintenance; Settings - Ferroli SYS 10-23 Installation, Maintenance And User Instructions

3. SERVICE AND MAINTENANCE

3.1 Settings

All the adjustment and conversion operations must be performed by Qualified Personnel, such as
personnel from the Local Customer Service Centre.
FERROLI Ltd. declines all liability for damage to persons and/or things deriving from tampering with
the appliance by non-authorised persons
Conversion of supply gas
The appliance can operate on Natural Gas or LPG as the supply gas, and is factory configured for
use with one of the two gases, as is clearly marked on the packaging and on the rating plate on the
appliance itself. If the appliance has to be used with a gas other than the one it has been set for, the
special conversion kit must be used, as shown below:
1 Replace the nozzles in the main burner, installing the nozzles indicated in technical data table in
Chap. 4.4, according to the type of gas used
2 Adjust the minimum and maximum pressures in the burner (ref. corresponding paragraph), setting
the values indicated in technical data table for the type of gas used.
3 Change the position of Jumper 02 on the electronic board (ref. corresponding paragraph).
4 Apply the adhesive label in the conversion kit next to the rating plate, to confirm the
conversion operation.
Adjusting the gas pressure and heat output
The following adjustments must be carried out by qualified personnel only.
To adjust boiler heat input simply adjust the burner pressure gas via the pressure regulator on
the gas valve (fig. 14).
Adjust the gas pressure at the burner by turning the pressure
regulating screw: turn it clockwise to increase the burner
pressure and anticlockwise to decrease it.
The diagrams indicate the variation in heat output to the
water as burner working pressure is varied (fig. 28).
Adjusting boiler output to the actual requirements of
the central heating system will minimise boiler cycling
thus saving fuel, varying the output has virtually no
effect on the efficiency and combustion characteristics
of the boiler.
20
SYS 10-23
Pressure regulator
protection plug
Outlet
pressure
Test Point
Inlet
pressure
Test Point
Inlet
gascock
fig. 14