Trasforming For Operation With Another Type Of Gas; Replacing The Most Important Components - Diamond G77/BRI7-N Installations-, Betriebs- Und Wartungsanleitungen

3.

TRASFORMING FOR OPERATION WITH ANOTHER TYPE OF GAS

Shut off the gas valve supplying the unit.
REPLACING THE MAIN BURNER NOZZLE (Fig. 1)
Using a size-12 spanner, unscrew nozzle (U) and replace it with the one corresponding to the selected gas, according to the
indications on Table II.
REPLACING THE PILOT BURNER NOZZLE (Fig. 1)
- Attention: First remove the spark-plug (Fig. 1 position 5) by unscrewing the nut (Fig. 1 position 8) with a 10mm-spanner.
- Unscrew the nut using a 10mm-spanner (Fig. 1 position 2) and remove the pilot nozzle (Fig. 1 pos. 7).
- Exchange the pilot nozzle with one corresponding with the selected gas, in accordance with the indications of Table II.
- Tighten the nut firmly with a 10mm-spanner.
After replacing the nozzles, apply on the existing label the one supplied with the machine indicating the new type of gas.
4.
The unit should be checked at least twice a year. You must check the burners, the ignition, the interignition, the maximum
and minimum settings.
- For any repairs, consult exclusivel an authorised assistance centre and ask for original spare parts.
- Before carrying out the disassembling of components and their replacement, shut off the gas valve.
- Remove the front panel.
- Proceed to replace the most important components:
A) Piezoelectric Igniter (Onto the front lower panel)
- Detach the high-voltage wire from the igniter
- Unscrew the nut with a 27mm-spanner
- Replace the igniter
- Mount everything back by following the reverse order sequence.
B) Pilot spark-plug (Fig. 1 position 5)
- Detach the high-voltage wire
- Unscrew the nut (Fig. 21 position 8) using a 10mm-spanner
- Replace the spark-plug
- Mount everything back by following the reverse order sequence.
C) Thermocouple (Fig. 1 position 4)
We advise you to remove the spark-plug (see position B), since the ceramic part is quite fragile.
- Unscrew the nut (Fig. 1 position 9) using a 10mm-spanner
- Using a 9mm-spanner, unscrew the thermocouple of the safety valve (Fig. 3)
- Mount everything back by following the reverse order.
D) Pilot burner (Fig. 1 position 6)
- Remove the spark-plug (see position B), since the ceramic part is quite fragile.
- Remove the thermocouple by using a 10mm-spanner (Fig. 1 position 4 and 8).
- Remove the gas connection by using a 10mm-spanner (Fig. 1 pos 2), being careful not to misplace the nozzle (Fig. 1 pos 7).
- Remove the pilot from the burner bracket.
- Change the pilot burner.
- Mount everything back by following the reverse order.
ATTENTION: Tighten the nut firmly (Fig. 1 position 2) and check the gas seal with soap bubbles.

REPLACING THE MOST IMPORTANT COMPONENTS

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GB