25
ENGLISH
Installation Instructions
The following instructions are intended
exclusively for
All boilers leave the factory already cali-
brated and tested, however in the event
the gas valve recalibration is required:
- Loosen the needle screw ‘’P’’ located inside the
pressure socket at gas valve outlet and connect
a pressure gauge with reference to the gure.
- Check the supply pressure value (see NOZZLES
- PRESSURES table).
Attention, during these operations do
pressure
OUTPUT
1) Maximum output adjustment
- Operate the boiler in “calibration” mode at MAXI-
MUM OUTPUT (see 3.11.1).
- Once the burner is on check that the “MAXIMUM”
pressure value corresponds to that indicated in
the table “NOZZLES - PRESSURE”.
- Should it not correspond, correct it by removing
the screw cap ‘’Q’’ and turning screw “S” below
CLOCKWISE to increase it, ANTICLOCKWISE
to decrease it.
- once the gas valve minimum and maximum pres-
sure values are checked and top-up is required
(points 1-2):
- disable the timed “calibration” function by switch-
ing off the main switch.
-
P
Q
R
P
R
Q
S
2) Minimum output adjustment
- Operate the boiler in “calibration” mode at MINI-
MUM OUTPUT (see 3.11.1)
- Once the burner is on, check that the “MINIMUM”
pressure value corresponds to that indicated in the
table “NOZZLES - PRESSURE”.
- Correct it if needed by turning (with a screwdriver)
the screw “R”; CLOCKWISE to increase it, ANTI-
CLOCKWISE to decrease it.
S
P
To Next Page
Loading...
