Neitherthenozzlesettingnortheairadjustmentsarefac- toryset.Thefurnaceisfiretestedandthelimitcontrolis checkedto makesureitfunctionsproperly;nofactoryset- tingsare made.Duringinstallation,thefurnacemustbe "setup."Theinstallingdealer/contractormusthaveand usepropertestequipmentinordertocorrectlysetupthe oilfurnacePropertestingequipmentisrequiredtoensure. correctoperationoftheunit.Theuseoftestequipmentis nowmorecriticalthaneverduetotightertolerancesneed- edto keepthefurnaceoperatingefficiently.
Amongthetestequipmentfor anoil furnace,theproper combustiontestkitshouldcontainthefollowing:
•Draftgauge
•CO 2 or 0 2 analyzer
•Smoke tester
•Pressure gauge
•High temperature thermometer
•Beckett
•Oil vacuum gauge
•Knowledge of proper test equipment operation
O23V Series | Burner Removal |
Loosen three nuts which at- | Rotate burner counterclockwise on |
tach burner to vest panel. | slots then pull toward you, |
Figure 4
To correctly adjust the nozzle, use a Beckett
Insert the small end of the gauge into the end of the cone and measure from the flat of the end cone to the tip of the nozzle. When nozzle depth is correct, the tip of the nozzle should just touch the end of the gauge. Refer to the illustra- tion sheet provided with the gauge. Note that the scale side of the gauge is not used for this purpose. Make corrections by sliding the nozzle assembly forward or backward within the blast tube (figure 5). At the same time, check the nozzle alignment.
Beckett Oil Burner Nozzle Adjustment
Burner must be removed from furnace for this procedure.
GAUGE | 2 | 1 |
CAUTION
Adjusting the Nozzle
Proper adjustment d the nozzle assembly is critical be- cause alignment may have changed during shipping. Be- fore the furnace and oil lines are installed, the nozzle as- sembly must be checked. To check the nozzle assembly, remove the entire burner assembly (not just the nozzle) from the furnace. The lower firing nozzle is factory installed. This should be verified by the installer. Inspect the spark transformer leads also to ensure they are still at- tached to the electrodes.
The burner assembly is attached to the vestibule panel by three nuts. Slots are provided in the mounting flange for re- moving the burner assembly from the vestibule. By loosen- ing the nuts and by turning the whole burner assembly counterclockwise (figure 4), the entire burner assembly will come out of the furnace. There is adequate wire to re- move the burner without disconnecting wires. Once re- moved, turn the burner around in the vest panel area.
TO ADJUST NOZZLE:
Figure 5
To check nozzle alignment, again insert the small end into the end cone and measure the nozzle and electrode align- ment against the center lines marked on the gauge (again refer to enclosed illustration sheet). If the nozzle is not cen- tered, but found to be too far left or right, a new nozzle as- sembly will need to be ordered. Do not attempt to adjust by bending the 90 degree elbow in the oil line.
A WARNING
Page 5
O23V SERIES
