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SM FP_Australia 2017/04 EN
Operation
Action
Connection to
the control unit
Result
Standby
(Inputs Signals must be
within expected limits)
Main Switch in control unit
Input
ON
Electrical plug connected
Input
240 V
AC
Thermal fuse with continuity
Input
Contact closed
Ionization reading
Input
0 µA
Temperature sensors OK
Input
Ohm Value inside
range
Hot Water Demand
(tap opening)
Turbine detects water flow
Input
Frequency value to
control unit
Spark to ignition electrodes
Output
Gas valve solenoid activation
Output
V
DC
Flame on main burner
Ionization detection (spark stops)
Input
I > 0.8 µA
Hot Water Delivery
Safety devices monitor operation
Input
Table 13 – Operation conditions
