Testing; Ionisation Current - Riello 901T Installation, Use And Maintenance Instructions

5.7.3

Testing

Check the standby of the burner by opening the thermostats (TL);
check that the burner is blocked
the connector (CN) inserted in the probe red wire and located out-
side the control box.
5.7.4

Ionisation current

The minimum current necessary for the control box operation is
5 µA. The burner normally supplies a higher current value, so that
no check is needed.
Anyway, if you want to measure the ionisation current, you need
to open the connector (CN1) fitted on the red wire and insert a mi-
croammeter.
Control box
D5006
Optimum calibration values
MIN. output
CO (%)
2
METHANE 8
LPG 9.5
20028767
while is working by opening
Connector
MAX. output
O (%) CO (%) O
2 2
6.6 9
6.4 10
Installation
Probe
Fig. 12
(%)
2
4.9
5.6
14 GB