20175134
34
GB
Start-up, calibration and operation of the burner
6.6
Pressure switch adjustment
6.6.1
Maximum gas pressure switch
Adjust the maximum gas pressure switch (Fig. 30) after perform-
ing all other burner adjustments with the maximum gas pressure
switch set to the end of the scale.
With the burner operating at maximum output, lower the adjust-
ment pressure by slowly turning the relative knob anticlockwise
until the burner locks out.
Now turn the knob clockwise by 0,2 kPa (2 mbar) and repeat
burner start-up to ensure it is uniform.
If the burner locks out again, turn the knob clockwise again by
0,1 kPa (1 mbar).
6.6.2
Minimum gas pressure switch
Adjust the minimum gas pressure switch (Fig. 31) after perform-
ing all the 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 stops.
Now turn the knob anticlockwise by 0,2 kPa (2 mbar) and repeat
burner start-up to ensure it is uniform.
If the burner locks out again, turn the knob anticlockwise again by
0,1 kPa (1 mbar).
6.6.3
PVP pressure switch kit
Adjust the pressure switch for the leak detection control (PVP kit)
(Fig. 32) according to the instructions supplied with the kit.
WARNING
1 kPa = 10 mbar
Fig. 30
D3856
Fig. 31
D3855
Fig. 32
D3855
Summary of Contents for RS 310/EV O2 BLU
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