19
STNM ed 07/07
NIKE Mini Export
Technical Documentation
Technical Documentation
Gas settings.
Maximum and minimum pressure settings are done by means
of the gas valve, observing the values given in the tables rela-
tive 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 is connected to the gas valve (4)
outlet
(see figure)
.
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
(NIKE Mini).
Draw some domestic hot water after having set its temperature
(using the keys on the panel)
on maximum.
Turn the brass nut (3) clockwise to increase pressure to the
burner and counter clockwise to reduce it.
Setting maximum pressure
(NIKE Mini S).
Using the keys on the panel, set central heating temperature on
maximum after having set ignition ramp timer on minimum
(see integrated board programming)
or, if there is an external
storage tank, draw some domestic hot water after having set
the temperature on maximum
(using the keys on the panel).
Turn the brass nut (3) clockwise to increase pressure to the
burner and counter clockwise to reduce it.
Setting minimum pressure
(for all models)
(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 op-
posite direction to reduce it.
