Burner Start-Up Cycle Diagnostics - Riello Burners PRESS 60 N Montage Und Bedienungs Anleitung

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NOTE

The pre-heater might be provided with a second thermostat of maximum value with a manual reset.

That thermostat can be used as a switch operating by means of an external commutator, which can take off

the current from the pre-heater in case of over-temperature (Kit code no. 3000800).

Before the burner start-up, verify that the pump is filled of fuel in order to avoid any idling for too long time.

Filters cleaning:

periodically clean the filters in order to avoid any trouble at the burner operation.

Supply line filter:

positioned on the suction line, it causes the increase of the depression in the pump with the consequent flow

of gas and noise. Do not overcome the depression of 38 cm Hg (5 m W.c.) (5, fig. 1).

Pre-heater filter (10, fig. 1):

positioned in the delivery line, it causes a decrease of the spraying pressure which is detectable by use of a

manometer (12, fig. 1).

MANOMETER PROTECTION VALVE

After spray pressure check, it is recommended to cut out the manometer (12, fig. 1) to avoid pressure shock that

it can suffer at every burner starting. Close protection valve when the burner is not working and the manometer

indicate 0 bar.

4.6

BURNER START-UP CYCLE

Normal

Thermostat

Motor

Ignition transformer

flame valve

Lock-out lamp

Motor lock-out

It is caused by the motor overload relay if over-load occurs or no phase.

Reset: push the buttons 7 and 8, fig. 1.

4.7