Gaz Industrie BTwin BTH25, Технические инструкции

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REPLACEMENT OF PARTS :
Mono-electrode :
Dismantle the electrode carrier by unscrewing fixation screws. Change the set if
necessary. The gap between the electrode and the earth electrode must be 4 mm.
Burner and injector :
Dismantle the electrode carrier. Unscrew the burner, unscrew the injector and change
them if necessary. When the injector is dismantle, the joint must be replaced.
Ignition and security box
To take it out, unscrew the screw on the cover, unplug the connector and the HT
ignition connector.
Pressure switch
Open the superior bonnet, disconnect and identify the cable terminals and take out the
pressure switch from it support.
Fan Motor Group
Loosen the 4 nuts to easily remove the fan motor group.. To unfix the turbines, loosen
the six-sided nut by means of an Allen key on the flat surface of the motor axe.
13 Gas change
- The gas conversion must be done by qualified technicians.
- When converting to another gas type, only the injector (5) must be changed.
- We refer to the table at page 5 showing the injector diameters to be respected.
- This table also indicates the inlet pressure and the pressure by injector that must be
respeced
Note : A conversion kit is available on demand (consult our price list for components). The kit
comprises : injector, seal and gas label (must be adhered on the old label).
Successive checks to be done
- Check inlet pressure of working unit by means of a manometer connected to the pressure
connection (2)
(See also table at page 5).
- Check pressure at gas pressure connection (4).
- Adjust pressure at the injector by using the adjustment screw. (3)
(See table on page 5).
- Fix appropriate gas label
Note :
For the 3rd family gases 3+ PROPANE or BUTANE the regulator is blocked (3)
(completely screwed in).
Mark Designation
1 Electrovalve inlet
2 Supply pressure intake (unblocked the screw
in order to measure the pressure)
3 Pressure regulator (remove the brass plug
terminal in order to access to the regulator
screw)
4 Injector pressure intake (unblocked the
screw in order to measure the pressure)
5 Brass injector (carved in mmx100)