Beckett CF 2300A Maintenance and service, Set low-fire air, Annual service, Monthly maintenance

Instruction Manual – Model CF2300A Oil Burner

b.Slowly rotate the air adjusting plate (increase the amount of air) as the damper drives to high-fire.

c.Lock down air adjusting plate at the high-fireair set- ting found in Table 5 for the high-firerate.

6.Use combustion test instruments to adjust the burner.

a.Adjust the air until a trace of smoke is achieved with

CO2 level as high as possible (lowest possible O2). Example: 13.5% CO2 (2.5% O2) with a trace of smoke.

b.Increase the air to reduce CO2 by 2 percentage points at a zero smoke level. (Increase O2 by 3 percentage points at a zero smoke level.)

Example: Reduce CO2 from 13.5% to 11.5%, with zero smoke (or increase O2 from 2.5% to 5.5%).

c.A margin of reserve air has been added to accommo- date variable conditions.

7.Check the breech draft pressure against the appliance manufacturer’s recommended setting (typically + 0.1" W.C.).

8.If the breech pressure is higher or lower than recommended level, adjust the appliance breech damper to achieve the

specified setting. Recheck the smoke and CO2 levels. Adjust burner air if necessary.

9.Once all settings are complete and satisfactory, rotate the damper linkage arm (Figure 12, item f) until it touches the damper rod (Figure 12, item d) and tighten the damper linkage arm screw securely.

❏Set low-fire air

1.Loosen the air adjusting plate (Figure 12, item m) screw and set the air adjusting plate at the low-fireair setting found in Table 5, page 13. The damper should stay at the high-fire setting. The damper linkage will prevent move- ment of the damper plate.

2. Move the low-fire hold switch from the “ OUT” to the “ IN” position.

a.The damper will return to the low-fireair setting.

3.Check the smoke and CO2 (O2) levels.

a.Pull a smoke sample from the flue.

b.The sample should be clean (zero smoke level).

c.Check the CO2 (O2) level:

CO2 should be at 11 to 12% (O2 at 5.9 to 4.5%).

If the CO2 is less than 11% (O2 more than 5.9%), decrease the air and check the smoke level.

4.Operate the burner from low fire to high fire and back to verify operation.

5.Turn the burner off. Wait one or two minutes (for chamber to clear) and then turn on again to verify starting charac- teristics.

6.Perform limit circuit performance test specified by appli- ance manufacturer to verify operation of burner/appli- ance combination.

Maintenance and service

The burner must be serviced at least annually by a qualified service technician to assure continued reliable operation. Operation and adjustment of the burner requires technical knowledge and the use of combustion test instruments. Do not tamper with the burner or controls. Failure to comply could result in failure of the burner or system, resulting in severe personal injury, death or substantial property damage.

Annual service	❏ Inspect combustion air and vent systems.
— by qualified service technician	❏ Replace oil filter.
	❏ Oil motor (if not permanently lubricated).

Have the burner inspected, tested and started at least annually
by a qualified service technician. This annual test/inspection	Monthly maintenance
should include at least the following:
	— by owner
❏ Replace oil nozzle.
❏ Clean burner and blower wheel (if needed to remove lint	❏ Observe combustion air openings and vent system for
or debris).	integrity. Openings must be clean and free of any obstruc-
❏ Test ignition and combustion at low and high fire and	tions.
verify air damper settings.	❏ Check the oil lines and fittings to verify there are no leaks.
❏ Test oil supply line vacuum - verify that it is within al-	❏ Observe burner ignition and performance to verify smooth
lowable range indicated in fuel unit literature.	operation.
❏ Check pump pressure to nozzle at low and high fire.	❏ Shut the system down if you observe abnormal or ques-
❏ Inspect fuel system (including tank, lines and all connec-	tionable operation. Call a qualified service agency for
tions).	professional inspection and service.

Form 6104 BCF-23-R0399 15