Combustion Head Settings; Nozzle Replacement - Trianco Contractor WM 70 User, Installation, Commissioning & Servicing Instructions

COMBUSTION HEAD SETTINGS

NOZZLE REPLACEMENT

1 Switch off electrical supply to boiler and
turn off oil
3 Remove burner plug from control box.
3 Burner can now be removed from boiler
4 Remove blast tube from burner exposing
nozzle holder assembly.
NOZZLE REMOVAL
AIR REGULATION
The air regulator may have to be
adjusted to obtain the correct
combustion figures.
48
3
5 The nozzle can now be carefully
removed taking great care not to
damage the electrodes. (see Diag.)
6 Fit a new nozzle of the same specification
taking the same care.
7 Check the position of the electrodes
after replacing the nozzle to ensure they
have not moved.
NOZZLE BOX SPANNER
6
ELECTRODES
NOZZLE
NOZZLE HOLDER
ASSEMBLY
15
3
8 Refit the blast tube to the burner.
IMPORTANT -
BURNER NOZZLES ARE EXCLUDED
FROM THE MANUFACTURERS
GUARANTEE!