Ferroli SUN G3 R Instrucciones De Uso página 30

Pump noisy, uctuating pres-
sure
The pump loses prime after
ex tend ed shut-down
Pump leaks oil
Fuel supply irregular
Bacharach soot dark
Bacharach yellow
Combustion head dirty
30
Air in the inlet piping /Tighten the ttings
Too much difference in height between the burner and the tank/Supply burner
using a ring circuit and aux il ia ry pump
Pipe diameter too small /Increase diameter
Inlet lters dirty /Clean
Oil supply valve closed /Open
Paraf n solidi cation due to low temperature /Add additive to the oil
Return pipe not immersed in the fuel /Move to same height as the inlet pipe
Air in the inlet piping /Tighten the ttings
Seal device leaking/Replace pump
Supply system or pump blocked or defective /Supply the burner from a tank lo-
cat ed near the burner to iden ti fy whether the problem depends on the pump or
the system
Insuf cient air /Adjust the head and fan damper
Dirty or worn nozzle/Replace
Nozzle lter dirty/Clean or replace
Incorrect pump pressure/Adjust between min 10 and max 14 bars
Flame stability disk dirty, loose or deformed /Clean, tighten or replace
Insuf cient ventilation in the boiler room/Check ventilation openings in the room,
clean or enlarge
Excess air /Adjust the head and fan damper.
Head poorly adjusted or insuf cient air /Adjust the head, open the air damper
Nozzle or nozzle lter dirty/Replace
Incorrect nozzle angle or ow-rate/Replace
Nozzle loose /Tighten
Impurities from the surrounding environment on the stability disk/Clean
Cod. 3540C353 - Rev. 01 - 02/2015
SUN G3 R
GB