Daikin UATYA-BBAY1 Manuel D'installation, D'utilisation Et D'entretien page 67

6.9.4.8 Inspection of safety thermostat(s)
This inspection must be performed with the generator running and the burner ON.
Use an isolated tool (230 V) to plug out the serial connection of the thermostat; plug out the Faston terminal from
the safety thermostat and wait until the blockage alarm "F20" appears on the LCD display of the CPU board installed
aboard the machine.
Plug the serial connection of the thermostats back in and then remove the blockage.
6.9.4.9 Inspection of ionising current
This inspection can be performed directly from the I/O menu of the LCD display.
Parameter "IOn" indicates the value of the ionising current. The meaning of the read value is as follows:
- 100 indicates that the value exceeds 2 µA, which is largely enough for equipment operation;
- 0 to 100 indicates a value from 0 to 2 µA; for instance, 35 corresponds to 0.7 µA, which is the min. threshold that
can be detected by the flame control equipment.
The value of the ionising current must not be lower than 2 µA. Lower values indicate that the detection electrode is
misplaced, oxidised or likely to break soon.
We reserve the right to make changes without any prior notice.
UATYA
4P645202-2
Translation from original instructions
Packaged Rooftop
67