Gas Settings; Converting The Gas Type - Immergas EOLO Mini Manual

Technical Documentation

Gas settings.

Maximum and minimum pressure settings are done by means
of the gas valve, observing the values given in the tables relative
to each boiler for the corresponding gas type (see technical
data).
A differential pressure gauge is used for reading the pressure,
its positive pressure point connected to the gas valve (4) outlet
and to the positive pressure point on the flange with the holes
located at the top of the sealed chamber (see figure).
SIT 845 valve
Legend:
1 - Coil
2 - Minimum output adjustment screw
3 - Maximum output adjustment nut
4 - Gas valve outlet pressure point
5 - Gas valve inlet pressure point
6 - Protection cap
STEMkW Special ed 01/08
Technical Documentation
Gas valve SIT 845.
Setting maximum pressure.
Draw some domestic hot water after having put its temperature
selector on maximum.
Turn the brass nut (3) clockwise to increase pressure to the
burner and in the opposite direction to reduce it.
Setting minimum pressure
(to be done after setting maximum pressure).
After turning power off to the modulating coil, turn the screw
(2) clockwise to increase pressure to the burner and in the
opposite direction to reduce it.

Converting the gas type.

There are special kits to adapt the boiler to a gas type different
to the one for which the boiler is set as standard (natural gas
or LPG).
Conversion consists in changing the burner nozzles and moving
the gas type selector "NATURAL GAS - LPG" (S8) on the
integrated P.C.B..
Maximum and minimum pressures are then regulated on the
gas valve as described above.
The maximum and minimum output setting in the central
heating phase can be set via the parameters (see integrated
P.C.B. operation).
The burner ignition pressure is not regulated because the
type of P.C.B. operation does not require such a setting (see
integrated P.C.B. operation).
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EOLO Mini kW Special