Measuring The Ionization Current; Installing The Casing - Rinnai E75CN Installation & Servicing Instructions Manual

12.4 Measuring the ionization current

12.5 Installing the casing

Installing casing fi gure 30
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
connection on the
measuring device
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
- 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.
- Install the cover on the boiler and close all 4 quick releases of the casing
- Tighten the 4 screws A,B,C and D in the quick releases (fi gure 30);
- Tighten the screw E behind the door on the front of the casing (fi gure 30);
is shown (keep button pressed).
plug and the
probe and connect
in series. See fi gure
or the button the code C123;
socket
the
29.
Ionization test
value in BTU/hr = x3415
fi gure 29
63