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THE PRESENT MANUAL IS PROPERTY OF THE MANUFACTURER. ANY REPRODUCTION, EVEN PARTIAL, IS PROHIBITED.
6.
GAS TYPE CHANGEOVER
EN
UPSTREAM DYNAMIC
PRESSURE CONTROL
/ See gas
inlet pressure detection.
INJECTOR PRESSURE
CONTROL
If the measured pressure is
lower than the 20% compared
to the entry pressure, suspend the
installation and contact the authori-
zed customer care service
If the measured pressure is hi-
gher than the entry pressure, su-
spend the installation and contact the
authorized customer care service
REPLACEMENT OF PILOT
BURNER INJECTOR - see SECT.
IMAGES - REF. l)
Close the shut-off valve upstream of
the equipment.
MODEL 700
1. Remove the lower panel
2. Disassemble the burner body
3. Disassemble the plug to avoid da-
maging it while replacing the injector
(Fig. 1/B).
4. Unscrew the nut and remove the
pilot injector (the injector is attached
to the double cone).
5. Replace the pilot injector (Fig.1/A)
with that which corresponds to the se-
lected gas as indicated in the Refe-
rence table.
6. Tighten the nut with the new injector.
7.Reassemble the plug.
8. Ignite the pilot burner to make sure
there are no gas leaks.
MODEL 900 /
• Remove the insulation protection panel.
• Unscrew the nut and the pilot injector.
• Replace the pilot injector (Fig.1/A)
with that which corresponds to the se-
lected gas as indicated in the Referen-
ce table.
• Tighten the nut with the new injector.
• Ignite the pilot burner to make sure
there are no gas leaks.
REPLACEMENT OF BURNER
INJECTOR - see SECT. IMAGES
- REF. m) /
1. Close the cut-off cock
upstream the machine.
2. Unscrew the injector (Fig. 3)
3. Replace the injector with the one
corresponding to the selected gas
according to what reported in the re-
ference Table.
4. Screw the new injector.
Make sure there are no gas le-
aks
ADJUSTMENT OF MINIMUM
THERMAL RANGE - see SECT.
IMAGES - REF. n)
In the provided models, the reduced
thermal range is obtained with the “si-
zed” by-pass minimum screw (Fig. 2),
screwed hard (see Gas Table).
Open the cut-off cock upstream the
machine
In case of screw replacement
put a tampering detecting seal
on it at the end of the detection
process