Gas Type Changeover - MBM WGG74 Manual De Uso E Instalación

UPSTREAM DYNAMIC
PRESSURE CONTROL / See gas
inlet pressure detection.
INJECTOR PRESSURE
TROL
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,
suspend the installation and contact
the authorized customer care service
UPSTREAM DYNAMIC
SURE CONTROL / See Gas inlet
pressure detection.
INJECTOR PRESSURE
TROL
If the measured pressure is lower
than the 20% compared to the en-
try pressure, suspend the installa-
tion and contact the authorised custom-
er care service
If the measured pressure is higher
than the entry pressure, suspend
the installation and contact the
authorised customer care service
REPLACEMENT OF PILOT BURN-
ER INJECTOR - SEE ILLUSTRA-
TIONS SECT. - REF. g)
1. Close the shut-off valve upstream of
the appliance.
2. Remove the grids, splash guards and
burner guards at the pilot unit.
3. Remove the panel. Unscrew the pilot
unit (Fig. 3) and pull it out from above
4. Unscrew the nut and remove the pilot
injector (the injector is attached to the
double cone).
5. Replace the pilot injector (Fig. 1) with
that which corresponds to the selected
THE PRESENT MANUAL IS PROPERTY OF THE MANUFACTURER. ANY REPRODUCTION, EVEN PARTIAL, IS PROHIBITED.

GAS TYPE CHANGEOVER

gas as indicated in the Reference table.
6. Screw back the parts, pilot unit and
put all removed parts back in place.
Check the gas seal with the
CON-
special tools
REPLACEMENT OF PILOT BURN-
ER INJECTOR - SEE ILL SECT. -
REF. h)
1. Close the shut-off valve upstream of
the appliance.
2. Remove the panel
3. Unscrew the injector (Fig. 3).
4. Replace the injector with the one for
the gas / see Reference table.
5. Screw the new injector into its seat.
Check the gas seal with the spe-
PRES-
cial tools
MAIN BURNER ADJUSTMENT -
SEE ILL SECT. - REF. i)
CON-
To adjust the primary air:
Close the shut-off valve upstream of the
appliance.
Unscrew the locking screw (Fig. 1).
Where required, set the distance (X)
mm of the bushing for the selected gas
(see reference Gas table).
Lock the bushing with the
screw and affix a tamper-evi-
dent seal over it
ADJUSTMENT
THERMAL RANGE - SEE ILL
SECT. - REF. l)
In the provided models, the reduced
thermal range is obtained with the
"sized" by-pass minimum screw (Fig.
2), screwed hard (see reference Gas
Table).
Open the shut-off valve upstream of the
equipment.
In case of screw replacement put
a tamper-evident seal on it at the
end of the detection process
- 14 -
OF MINIMUM
6.