Riello 20171510, Инструкции по установке, использованию и обслуживанию

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20171652 28 GB
Start-up, calibration and operation of the burner
5.4.2 Maximum gas pressure switch
Adjust the maximum gas pressure switch (Fig. 31) after making
all other burner adjustments with the maximum gas pressure
switch set to the end of the scale.
To calibrate the maximum gas pressure switch, open the tap and
then connect a pressure gauge to its pressure test point.
The maximum gas pressure switch must be regulated to a value
no higher than 30% of the measurement read on the gauge when
the burner is working at maximum output.
After making the adjustment, remove the pressure gauge and
close the tap.
5.4.3 Minimum gas pressure switch
Adjust the minimum gas pressure switch (Fig. 32) after having
performed all other burner adjustments with the pressure switch
set to the start of the scale.
With the burner operating at maximum output, increase adjust-
ment pressure by slowly turning the relative knob clockwise until
the burner locks out.
Then turn the knob anticlockwise by 0.2 kPa (2 mbar) and repeat
the burner start-up to ensure it is regular.
If the burner locks out again, turn the knob anticlockwise again by
0.1 kPa (1 mbar).
5.4.4 PVP pressure switch kit
Adjust the pressure switch for the valve leak detection control de-
vice (PVP Kit)(Fig. 33), if present, according to the instructions
supplied with the Kit itself.
WARNING
1 kPa = 10 mbar
Fig. 31
PGM
PA
D3856
20181543
Fig. 32
D3855
Fig. 33
D3855