ZANOLLI SYNTHESIS 08/50 V PW GAS, Manual For Installation

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9. MAINTENANCE
34 SYNTHESIS GAS
paragraph 5.3.1). Then disconnect the oven from the main power and
connect it again.
This operation permits to reset the base board and delete any other
alarms in memory.
9.4. Adjustment to different gas type
Warning! The maintenance instruction contained here are for the
use of qualified maintenance and service personnel only. Three steps have
to be performed to have the gas conveyor oven adjusted to work with a gas
type different from the one shown on the initial data label:
1. replacement of burner injectors.
2. Adjustment of minimum power.
3. Removal of the old data label and application of the new one.
Carefully perform all a.m. steps, as only in this way the baking oven
can be considered safe.
9.4.1. Replacement of burner injector
1. Disconnect the plug from the electric panel and close the gas cock.
2. Open the safety enclosure of the burner compartment.
3. Take down the burner after having disconnected the gas pipe and the
electric wiring.
4. Remove the ignition and flame detection electrodes
5. Unscrew the burner pipes using a screwdriver.
6. Unscrew the injectors using a number 12 spanner, and replace them
with the new ones.
7. Repeat the above operations in reverse, checking carefully the
tightening of nozzles and of gas feeding pipes.