43
Instructions for the installer
ADJUSTING SCREW
MAXIMUM POWER
ADJUSTING SCREW
MINIMUM POWER
Follow this procedure to adjust the other modules
as well.
If the measured flow rate is too low, make sure the supply and draining
systems (the supply and draining pipes) are not obstructed.
If they are not obstructed, make sure the burner and/or exchanger
are not dirty.
C) Completing basic calibration.
- Check CO
2
values at the minimum and maximum flow rate.
- Touch up if necessary.
For smooth operation, calibrate the CO
2
values taking
care to observe the values in the table.
- Close the cap for the flue inspection point back up.
NOTE: do not force the adjusting screw limit switch
limits.
A) Adjustment at maximum power.
- Unscrew the closing cap for flue exhaust analysis point.
- Place the analyser probe inside the flue analysis point.
- Make burner 1 operate at max power, following the procedure
illustrated below in "chimney sweep function " (100 % CASC
MANUAL).
- Make sure that the CO
2
level falls within the values indicated in the
"Nozzle pressure" table.
- Possibly correct the value by turning adjusting screw
"A"
CLOCKWISE
to decrease it and COUNTER-CLOCKWISE to increase it.
B) Adjustment at minimum power.
- Make burner 1 operate at min power, following the procedure
illustrated below in "chimney sweep function " (10 % CASC
MANUAL).
- Make sure that the CO2 level falls within the values indicated in the
"Nozzle pressure" table.
- Possibly correct the value by turning adjusting screw
"B"
CLOCKWISE
to increase it and COUNTER-CLOCKWISE to decrease it.
