Riello RX 150 S/PV, Installation, Use And Maintenance Instructions

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20151674 32 GB
Maintenance
Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics in-
tact, especially: the flue gas temperature and combustion cham-
ber pressure.
Gas leaks
Check that there are no gas leaks on the meter-burner pipe.
Check that there are no gas leaks in the following areas:
- on the meter-burner pipework
- on the mixer/valve connection
- on the burner fastening flange where the seal is fitted.
Gas filter
Change the gas filter when it is dirty.
Measuring circuit for measuring the current detector
The minimum current necessary for the control box operation is
1 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.
Flame control
Displayed value:
MIN
1 µA = 20%
MAX 40 µA = 100%
Key to layout (Fig. 15)
C
Electrolytic capacitor 100...470 µF; DC 10...25 V
ION Ionisation probe
M Microammeter Ri max. 5,000

Display of the ION or QRA flame... current
Tab. S
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases.

Significant differences with respect to the previous measure-
ments indicate the points where more care should be exercised
during maintenance.
In case the combustion values found at the beginning of the inter-
vention do not respect the standards in force or, in any case, do
not correspond to a proper combustion, contact the Technical As-
sistance Centre in order to carry out the necessary adjustments.
Tab. T
WARNING
Alternatively, it is possible to check the quality of
the ionisation current measured by the control box
using the control box itself as described below.
LME7...
M
C
ION
X10-05/2
X10-05/1
S8615
Fig. 15
Press to display the signal of the flame amplifier.
The indicator light blinks green.
Display shows
FL.1
Press (1…3 seconds), to display the current flame signal.
The indicator light blinks green.
Example:
11
Pressing (> 3 seconds), the point after the number starts to flash.
The value is displayed for 2 minutes after the button is released.
The indicator light blinks green.
Then the normal screen is displayed.
Display: point
.
blinks, the value 11 does not blink.
+
+
+
1..3 s
+
+
> 3s
+
WARNING
This display is possible only in operating mode or
in stand-by!
MIN output MAX output
CO
2
(%) O
2
(%) CO
2
(%) O
2
(%)
Methane 8 6.6 8.5 5.7
LPG 9.5 6.4 10 5.6
G25 7.8 6.8 8.3 5.8