Measuring The Ionization Current - Rinnai Q85SN Instructions D'installation Et D'entretien

13.4 Measuring the ionization current
Ionization test figure 33
- Switch off the system using the Central Heating button and the DHW button
- Disconnect the
and connect the measuring device in series. See figure 33.
Select the µA direct current range on the measuring device. The measuring device
must have a resolution of at least 1 µA.
- Switch on the sytem using the Central Heating button and the DHW button.
- Press the MODE-button for 5 seconds.
- The display will show COdE followed by an arbitrary number;
- Select by means of the + or the - button the code C123;
- Press the Store-button to confirm the code (code blinks 1 x);
- Press the MODE-button until SERV is shown;
- Press the STEP-button once until 1 is shown;
alternately 1 and OFF will be shown.
- Press the + button until the maximum value (in kW) is achieved;
The boiler will burn on full load (value on display in kW)
- Measure the ionization. When the boiler is in full load the ionization current must
be > 4 µA and write down this value in the log book.
- Press the - button until OFF is shown (keep button pressed).
- Switch off the system using the Central Heating button and the DHW button
- Disconnect the measuring device and restore the plug and the socket connection
on the probe.
- Switch on the sytem using the Central Heating button and the DHW button.
plug and the socket connection on the
value in BTU/hr = x3415
probe
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