42
3
1
2
4
A
B
B
B
A
C
D
Instructions for the installer
3.24 CHECK THE ADJUSTMENT OF THE
PRESSURE TO THE BURNER
ATTENTION!
All of the instructions below are provided for the
exclusive use of
authorised assistance
personnel.
All boilers leave the factory calibrated and approved,
nevertheless, if the calibration conditions need to be
changed it is necessary to re-calibrate the gas valve.
ATTENTION!
Remove cap
2,
attach the red cap
3
to the flue point
1.
Place the CO
2
analysis probe
4
in the hole on the cap.
Once the measurement has been made, take the cap
out and use the relative cap
2
to close the flue exhaust
point back up.
ATTENTION!
To access the gas valves more easily, unhook electric
panel "A" by acting on spring "B" (right and left).
Turn electrical panel "A" slightly and lower tilting
panel "C"
For the amount of time required for the adjusting
operation, fix tilting panel "C" in place using 2 M4
"D" washers (contained in the documentation
bag).