TO STOP
(Either Manual or Automatic System)
1. Close
MAIN
and
PILOT GAS COCK
.
2. Allow burner to continue operating until flame goes out (as seen through observation port on rear of
burner).
3. De-energise system control panel and
BURNER FAN BLOWER MOTOR
.
4. If the combustion chamber is under positive pressure allow
BURNER BLOWER
to run while cooling down
system.
MAINTENANCE AND SPARES
The following should be carried six-monthly or every 1000 hours, whichever is the shorter:-
Turn off gas and electricity supplies.
Clean the burner, a clean burner looks better and works better.
Check the electrodes, make sure they are clean and set correctly.
Check gas pipes and electrical connections. Bearings of electric motors provided with oilers should be
lubricated with six drops of light machine oil. Ball bearing motors are normally grease packed for life.
Connect a manometer to the test point between the manual gas cock and the safety shut-off valve. Turn
the manual gas cock on and then off. Mains gas pressure is then between the valves and this pressure will
be indicated on the manometer. Any leakage of gas past the main or pilot safety shut-off valves, or from a
pipe joint will reduce the pressure. If this pressure remains constant over a period of not less than one
minute, no leakage is taking place. Should gas pressure not remain constant – please call a Service
Engineer to properly check, clean and test the gas valve system.
Turn on the gas and electricity and start the burner.
Check the flame signal.
Restrict the air inlet to the combustion air fan. The burner should shut down under the action of the air
pressure switch.
The burner running, close the manual gas cock. The burner will go to lockout and any alarms fitted should
operate. Reset the control box.
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