Rayburn Heatranger 440 Installation Instructions Manual - Commissioning Instructions
SEE FIG 19 & 20
The air controls of the burners are factory pre-set,
however small adjustments may be necessary to suit the
site conditions (See Fig. 19).
IMPORTANT: Ensure that the bottom louvered plinth
is in place during combustion setting procedure.
Turn boiler burner on.
After 15 minutes remove the enamelled top cover panel
(behind the LH insulating cover) and remove the
insulation pad. Remove the plugging screw and insert the
sensing end of a portable indicator to check the CO
2
(Carbon Dioxide) level. Adjust the boiler burner air intake
until a reading of 11.0-11.5% CO
2
is recorded on the
indicator.
Check Smoke
Remove the CO
2
sampling tube using the same hole for
flue sampling insert the sensing end of a Baccarach
Smoke Pump and check that the smoke in the boiler flue
ways does not exceed No. 2 on the scale. Replace the
plugging screw, insulation pad and cover panel.
Cooker Burner
Switch off the boiler burner and repeat the procedure with
cooker burner. After 15 minutes running sample the flue
gases from the cooker burner. Lift up the RH insulating
cover and remove the countersunk headed screw in the
hotplate. The cooker burner should be set to 11.0-11.5%
CO
2
with a maximum smoke No. 2. Replace the
countersunk headed screw on completion ensuring that it
will not interfere with any pots and pans placed on the
hotplate.
When satisfied with combustion check refit burner door
inner panel.
Refit outer burner door.
23
Commissioning Instructions
SET COMBUSTION AIR
Fig. 19
Fig. 20
DESN 512001
DESN 511588