Gas Type Changeover; Replacing Components - MBM CPG77T Manual De Uso E Instalación

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
Make sure there are no gas le-
aks / Check at the end of work
REPLACEMENT
BURNER INJECTOR - see SECT.
IMAGES - REF. l)
1. Close the cut-off cock upstream the
machine.
2. Demount if necessary, the plugs in
order to avoid to damage it during the
injector replacement (Fig. 2).
3. Unscrew the nut and demount the
pilot injector (the injector is hooked to
the compression fitting).
4. Replace the pilot injector (Fig. 1)
with the one corresponding to the se-
lected gas according to what reported
Before proceeding see chap. 2
1. Remove the instrument panel and
knobs / 2. Open the door /s of the
equipment
REPLACING GAS TAP
Unscrew the inlet connections and
1.
gas breakout
THE PRESENT MANUAL IS PROPERTY OF THE MANUFACTURER. ANY REPRODUCTION, EVEN PARTIAL, IS PROHIBITED.

GAS TYPE CHANGEOVER

in the reference Table.
5. Screw the nut with the new injector.
(Fig. 2).
6. Reassemble the plug (Fig. 2).
7. Turn on the pilot burner to check
whether there are no gas leakages.
REPLACEMENT
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 ac-
cording to what reported in the refe-
rence Table.
4. Screw the new injector.
OF PILOT
ADJUSTMENT
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

REPLACING COMPONENTS

2.
3.
4.
1.
2.
3.
- 16 -
Make sure there are no gas
leaks
In case of screw replacement
put a tampering detecting
seal on it at the end of the
detection process
Unscrew the thermocouple
Reassemble the new tap
Check the idle screw (vd . Technical
Data Tables)
REPLACING THERMOCOUPLE
Unscrew the thermocouple from
the tap
Unscrew the thermocouple from
the pilot
Fit the new thermocouple and
OF BURNER
OF MINIMUM
6.
7.