Unigas S10, Installation Operation & Maintenance

PART II: OPERATION

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LIMITATIONS OF USE

THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY
CONNECTED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS TO
BE CONSIDERED IMPROPER AND THEREFORE DANGEROUS.

THE USER MUST GUARANTEE THE CORRECT FITTING OF THE APPLIANCE, ENTRUSTING THE INSTALLATION OF IT
TO QUALIFIED PERSONNEL AND HAVING THE FIRST COMMISSIONING OF IT CARRIED OUT BY A SERVICE CENTRE
AUTHORISED BY THE COMPANY MANUFACTURING THE BURNER.

A FUNDAMENTAL FACTOR IN THIS RESPECT IS THE ELECTRICAL CONNECTION TO THE GENERATOR’S CONTROL
AND SAFETY UNITS (CONTROL THERMOSTAT, SAFETY, ETC.) WHICH GUARANTEES CORRECT AND SAFE FUNCTIO-
NING OF THE BURNER.

THEREFORE, ANY OPERATION OF THE APPLIANCE MUST BE PREVENTED WHICH DEPARTS FROM THE INSTALLA-
TION OPERATIONS OR WHICH HAPPENS AFTER TOTAL OR PARTIAL TAMPERING WITH THESE (E.G. DISCONNEC-
TION, EVEN PARTIAL, OF THE ELECTRICAL LEADS, OPENING THE GENERATOR DOOR, DISMANTLING OF PART OF
THE BURNER).

NEVER OPEN OR DISMANTLE ANY COMPONENT OF THE MACHINE.

OPERATE ONLY THE MAIN SWITCH (“ON-OFF”), WHICH THROUGH ITS EASY ACCESSIBILITY AND RAPIDITY OF OPE-
RATION ALSO FUNCTIONS AS AN EMERGENCY SWITCH, AND ON THE RESET BUTTON.

IN THE EVENT OF REPEATED LOCKOUTS, DO NOT PERSIST WITH THE RESET BUTTON AND CONTACT QUALIFIED
PERSONNEL WHO WILL PROCEED TO ELIMINATE THE MALFUNCTION.

WARNING: DURING NORMAL OPERATION THE PARTS OF THE BURNER NEAREST TO THE GENERATOR (COUPLING
FLANGE) CAN BECOME VERY HOT, AVOID TOUCHING THEM SO AS NOT TO GET BURNT.

OPERATION

Bring to the ON position the mains switch on the boiler.

Check the flame control device is not in the lockout position, if necessary reset it by means of the pushbutton accessible from

the hole on the burner’s cover;

Verify that the control thermostats or pressure switches give the consent to the burner to operate.

Only burners equipped with leakage control device:

 the check cycle of the leakage control device starts; the completion of

this check is signalled by the light of the lamp on the device. When the valves check is finished, the start up cycle of the bur ner
begins. In the case of a leak in a valve, the leakage control device locks and the lamp LB lights. To reset the device operate on
the device pushbutton LB.

When the startup cycle begins, the servocontrol drives the air damper to the maximum opening position, the fan motor starts

and the pre-purgue phase begins.

At the end of the pre-purgue phase, the air damper goes to the ignition position, the ignition transformer comes on and 3

seconds later the solenoid valves EV1 and EV2 are energized. 3 seconds after the opening of the valves, the ignition transfor-
mer comes off

;

 the burner is on in low flame, 8 seconds later the two stage operation begins and the burner switches automati-

cally to high flame or remains in low flame operation, depending on the plant needs.

PART II: OPERATION