Rinnai Q130SN - Manuel (Page 59)

Installation & Servicing Instructions Rinnai Q-Series
59
13.5 Measuring the ionization current
- Switch off the system using the Central Heating button and the DHW button
- Disconnect the plug and the socket connection on the probe
and connect the measuring device in series. See figure 28.
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)
value in BTU/hr = x3415
- 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.
Ionization test figure 28