Beckett CF375 manual Maintenance and Ser- vice, Annual Professional Service Required

yHigh Efficiency/Positive Pressure Appliances; also vary from traditional appliances (see manufacturer’s recommendations).

3.Follow these four steps to properly adjust the burner:

Step 1: Adjust the air shutter/band until a trace of smoke is achieved.

Step 2: At the trace of smoke level, measure the CO2 (or O2) . This is the vital reference point for further adjustments. Example: 13.5% CO2 (2.6% O2)

Step 3: Increase the air to reduce the CO2 by 1.5 to 2 percentage points. (O2 will be increased by approxi- mately 2.0 to 2.7 percentage points.) Example: Re- duce CO2 from 13.5% to 11.5% (2.6% to 5.3% O2).

Step 4: Recheck smoke level. It should be Zero.

yThis procedure provides a margin of reserve air to accommodate variable conditions.

yIf the draft level has changed, recheck the smoke and CO2 levels and readjust the burner, if necessary

4.Once combustion is set, tighten all fasteners on air band, air shutter and escutcheon plate.

5.Start and stop the burner several times to ensure satis- factory operation. Test the primary control and all other appliance safety controls to verify that they function ac- cording to the manufacturer’s specifications.

6.Check the breech draft pressure against the appliance manufacturer’s recommended setting (typically + 0.1” W.C.). If the breech pressure is higher or lower than rec- ommended level, adjust the appliance breech damper to achieve the specified setting. Recheck the smoke and CO2 levels. Adjust burner air if necessary.

Maintenance and Ser- vice

Annual Professional

Service Required

Tampering with or making incorrect adjustments could lead to equip- ment malfunction and result in asphyxiation, explosion or fire.

yDo not tamper with the burner or controls or make any adjustments unless you are a trained and qualified service technician.

yTo ensure continued reliable operation, a qualified service technician must service this burner annually.

yMore frequent service intervals may be required in dusty or adverse environments.

yOperation and adjustment of the burner requires technical training and skillful use of combustion test instruments and other test equipment.

Annual service — by qualified service techni- cian

Have the burner inspected, tested and started at least annually by a qualified service technician. This annual test/inspection should include at least the following:

ˆReplace the oil supply line filter. The line filter cartridge must be replaced to avoid contamination of the fuel unit and nozzle.

ˆInspect the oil supply system. All fittings should be leak- tight. The supply lines should be free of water, sludge and other restrictions.

ˆRemove and clean the pump strainer if applicable.

ˆReplace the nozzle with the exact brand, pattern, gph, flow rate and spray angle.

ˆClean and inspect the electrodes for damage, replacing any that are cracked or chipped.

ˆCheck electrode tip settings. Replace electrodes if tips are rounded.

ˆInspect the igniter spring contacts.

ˆClean the cad cell len’s surface, if necessary.

ˆInspect all gaskets. Replace any that are damaged or would fail to seal adequately.

ˆInspect the combustion head and air tube. Remove any carbon or foreign matter. Replace all damaged units with exact parts.

ˆClean the blower wheel, air inlet, air guide, burner hous- ing and static plate of any lint or foreign material.

ˆIf motor is not permanently lubricated, oil motor with a few drops of SAE 20 nondetergent oil at each oil hole. DO NOT over oil motor. Excessive oiling can cause mo- tor failure.

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