Automatic Heating Enterprise LG 120, Инструкция по установке, эксплуатации и обслуживанию

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PART I: INSTALLATION MANUAL 24
Calibration of minimum gas pressure switch
Calibration is carried out as follows:
z
Remove the transparent plastic cap.
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With the burner in operation test the pressure on the pressure port at the input of the minimum gas pressure switch; slowly
close the manual shut-off valve (see gas train installation diagram) until the detected pressure is reduced by 50%. Verify
CO emissions of the burner; if the measured value is less than 80 ppm screw down the adjusting ring nut until the burner
lockout. If CO emissions are greater than 80 ppm open the shut off valve until the CO value is reduced to 80 ppm, then
screw down the adjusting ring nut until the burner lockout.
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Fully open the manual shut-off valve WARNING: carry out this operation ONLY with the burner turned off!
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Refit the transparent plastic cover on the pressure switch.
ADJUSTING THE COMBUSTION HEAD
Set the combustion head by means of a screwdriver, working on the screw VRT (Fig. 48). Rotate counterclockwise to move the
combustion head forward, or rotate clockwise to move back the combustion head.
Fig. 47
Fig. 48
VR
VRT