Nozzle Replacement - Ecoflam DUAL 1 Manual De Instrucciones

Ocultar thumbs

página de 84

/ 84
Contenido
Tabla de contenido
Marcadores

Tabla de contenido

Idiomas disponibles

SUNTEC AS 47 K

the pump feeding pressure. In case the pump priming does not take place during the first pre-

purging, with a consequent, subsequent lock-out of the burner, rearm the burner's lock-out to

restart, by pushing the button on the control box. If, after a successful pump priming, the bur-

ner locks-out after the prepurging, due to a fuel pressure drop in the pump, rearm the burner's

lock-out to restart the burner. Do not allow the pump to work without oil for more than three

minutes. NOTE : before starting up the burner, make sure that the return pipe is clear. Check

that the pipes do not leak. It is advisable to use copper pipes. Do not exceed the depression

limit of 4 mt.(0,45 bar) to keep low noise levels. The return pipe must reach the same level as

th e check valve at the bottom of the oil tank.

2 ÷ 2,5 mm

6 mm

YEARLY CHECKS

The burner's periodical check (firing head, electrodes etc.) must be carried out by authorised personnel one or two times per year,

depending on the utilisation. Before going on with the maintenance controls of the burner, it should be advisable to check its gene-

ral conditions, according to the following steps:

Unplug the burner; close the fuel cock; shut down the gas supply; remove burner's cover and clean the fan and air intake; clean the

firing head and check the electrode's position; reassemble all the parts; check the connection's sealing; check the chimney; start the

burner and check the combustion flue (CO2 = 9.5 ÷ 9.8; O = lower than 75 ppm).

BEFORE EVERY INTERVENTION CHECK:

The electric system is duly powered and the burner is plugged in. The gas pressure must be the suitable one and the gas cock open.

The control devices must be properly connected. When all the above conditions are met, start the burner by pressing the lockout

enable pushbutton. Check the burner's cycle.

THE BURNER DOES NOT START:

Check the ON/OFF switch, the thermostats, the motor and the gas pressure. The master switch is in position "0". Fuses are blown

out. The control box is faulty.

THE BURNER RUNS THE PREPURGING AND SWITCHES TO LOCKOUT AT THE END OF CYCLE:

Check the fan and the air pressure. Check the air pressure switch. Control box faulty. Ignition transformer faulty.

Check the ignition cable. Electrodes are dirty or in wrong position. Nozzles are clogged or worn. Filters are clogged. Light-oil pres-

sure is too low. Combustion air's flow rate too high related to nozzle output.

THE BURNER RUNS THE PREPURGING BUT DOES NOT IGNITE:

Check the position of the electrodes; check the ignition cable. Check the ignition transformer. Check the control box.

THE BURNERS IGNITES BUT SWITCHES TO LOCKOUT AFTER THE SAFETY TIME:

Check phase and neutral for a correct connection. Check gas solenoid valve. Check the position of ionisation probe and its connec-

tion. Check the control box. Check nozzles (clogged or worn). The photoresistor does not detect the flame. The filters are clogged.

Light-oil pressure too low. Combustion air's flow rate too high related to nozzle output.

THE BURNERS IGNITES BUT SWITCHES TO LOCKOUT AFTER FEW MOMENTS:

Check gas governor and gas filter. Check gas pressure through a manometer. Check ionization value (min. 200 µA).

PRIMING AND ADJUSTMENT OF THE PUMP

1 - INLET

2 - RETURN

3 - BLEED AND PRESSURE GAUGE PORT

4 - VACUUM GAUGE PORT

5 - PRESSURE ADJUSTMENT

6 - NOZZLE OUTLET

VERIFY: - That piping system is perfectly sealed; - That the

use of hoses is avoided whenever is possible (use copper pipes

preferably); - That depression is not greater than 0,45 bar, to

avoid pump's cavitation; - That check valve is suitably desi-

gned for the duty. Before starting the burner, bleed the air in

the pump through the gauge port. Fill the piping with light-

oil to facilitate the pump priming. Start the burner and check