31
Tec
hnical f
eatures and dimensions
ENGLISH
Adjust VG Shutter Opening to the values
indicated (see table NOZZLES-PRES
-
SuRE-cAPAcItY) by means of screw S.
Note: If in difficulty with regard to
adjusting MAX OUTPUT, re
-
move screws 1 - 2 and loosen
screws 3 - 4 (hex key 5 mm).
disconnect the u regulator
from the gas valve and do as
instructed.
GAS VALVE (Front view)
(*)
If the capacity read is too low, make sure the power
supply system and drain (power supply and drain
pipes) are not clogged.
3) Conclusion of the basic calibrations
- once the co
2
values at minimum and maximum output
have been checked and any adjustments have been made
(sections 1-2):
- disable the timed “calibration” function by switching off the
main switch.
- close the flue gas inspection sample points of the intake and
exhaust terminal
- check that there are no gas leaks.
For proper operation, the co
2
values must be
calibrated with particular attention, observing the
values indicated in the table.
If they are not clogged, make sure the burner and/or heat
exchanger is not dirty.