Set Combustion Air - Stanley Alpha 120 Servicing Instructions

Re-commissioning

SET COMBUSTION AIR

SEE FIG. 22
After 15 minutes of the boiler burner running.
Remove the collar infill trim and lift up the enamelled flue
collar. Support the flue collar above the cooker.
NOTE: The LH sampling screw is for the boiler and the
RH sampling screw is for the cooker.
Remove the plugging screw and insert the sensing end of
a portable indicator to check the CO (Carbon Dioxide)
2
level. Adjust the boiler burner air intake until a reading of
11.0/11.5% is recorded on the indicator.
CHECK SMOKE
FIG. 22 DESN 514826
SEE FIG. 23
Remove the CO sampling tube and using the same hole
2
for flue sampling, insert the sensing end of a Baccarach
Smoke Pump and check that the smoke in the boiler
flueways does not exceed No. 2 on the scale.
Replace the plugging screw.
Switch off the boiler burner.
COOKER BURNER - SEE FIG. 23
Switch on cooker burner.
After 15 minutes of the cooker burner running.
Repeat the above procedures for the cooker burner. To
sample the flue gases from the cooker burner, remove the
RH plugging screw and insert sensing end of a portable
indicator to check CO level. The cooker burner should be
2
set to 11.0/11.5% maximum Smoke No. 2.
FIG. 23 DESN 514823 A
Replace the plugging screw on completion.
14