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

Page: 32 / 68

9. MAINTENANCE
32 SYNTHESIS GAS
9. MAINTENANCE
WARNING! These use and maintenance instructions are
intended only for staff qualified for the installation and maintenance
of electrical and gas equipment. Maintenance by other persons may
cause damage to the equipment, persons, animals or things.
In the majority of cases it is necessary to remove the fixed guards in
order to carry out repairs and checks. This also renders the voltage cables
accessible.
Before carrying out any maintenance operations check that the
equipment’s feed cable plug is disconnected from the switchboard.
Put the plug in a place where the maintenance operator can easily
ascertain that it has been disconnected during all of the work done
with the guards removed.
9.1. Error indicator
The electronic thermo-regulator can detect various malfunctions, for
details see 5.6.
9.2. Safety thermostat
If the chamber temperature exceeds 500°C., the safety thermostat is
activated and closes the gas valve. The safety thermostat is reset manually
and is at the external side of the oven electric board or on the left side of
the control panel under the conveyor.
To correct the error, disconnect the plug from the electric panel, close
the gas valve and wait until the chamber cools down.
Remove the right side panel of the electric board and press the red
push-button on the thermostat. Reset will take place only when the
chamber temperature has gone below the temperature of 500°C.
Since the safety thermostat is activated only in case of serious
damages (for instance if the gas valve ON/OFF is blocked open), before
starting the oven again check carefully the good working of the same and
perform the required reparations.