Immergas EOLO Mini - Gas settings

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STEMkW Special ed 01/08 EOLO Mini kW Special
Technical DocumentationTechnical 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 dierential 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 ange with the holes
located at the top of the sealed chamber (see gure).
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
SIT 845 valve
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 o 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.
ere are special kits to adapt the boiler to a gas type dierent
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.
e maximum and minimum output setting in the central
heating phase can be set via the parameters (see integrated
P.C.B. operation).
e 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).