Measuring The Ionization Current - Rinnai Q Premier QP85N Installation & Servicing Instructions Manual

13.4 Measuring the ionization current

Ionization test fi gure 34
Ending the O measuring procedure:
2
- Press the - button until
With this the procedure has ended.
- Replace the black cover on the gas valve and secure it with the screw.
- Switch off the system using the Central Heating button and the DHW button
- Disconnect the
and connect the
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 confi rm 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.
is shown (keep button pressed).
plug and the socket
measuring device
connection on the
in series. See fi gure
value in BTU/hr = x3415
probe
34.
63