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Hersteller: Beckett Dateigröße: 592.57 kb Dateiname: Unterrichtssprache:

• Do not tamper with the burner or controls or make any adjustments unless you are a trained and qualified service technician. • To ensure continued reliable operation, a qualified service technician must service this burner annually. • More frequent service intervals may be required in dusty or adverse environments. • Operation and adjustment of the burner requires technical training and skillful use of combustion test instruments and other test equipment. The following guidelines are provided for routine maintenance. • Replace the oil supply line fi lter. The line filter cartridge must be replaced to avoid contamination of the fuel unit and nozzle. • Inspect the oil supply system. All fi ttings should be leak-tight. The supply lines should be free of water, sludge and other restrictions. • Remove and clean the pump strainer if applicable. • Replace the nozzle with an exact replacement as specified by the appliance manufacturer. • Clean and inspect the electrodes for damage, replacing any that are cracked or chipped. • Check electrode tip settings. Replace electrodes if tips are rounded. • Inspect the igniter cables and connections. • Clean the cad cell grid surface, if necessary. • Inspect all gaskets. Replace any that are damaged or would fail to seal adequately. • Inspect the combustion head and air tube. Remove any carbon or foreign matter. Replace all damaged units with exact parts. • Clean the blower wheel, air inlet, air guide, burner housing and nozzle line assembly of any lint or foreign material. Page 10 RWB 6104 BAFII R01 Trained Service Technician’s Regular Maintenance If 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 motor failure. Check motor current. The amp draw should not exceed the nameplate rating by more than 10%. Check all wiring for secure connections or insulation breaks. Check the pump pressure and cutoff function. Check primary control safety lockout timing. Check ignition system for proper operation. Inspect the vent system and chimney for soot accumulation or other restriction. Clean the appliance thoroughly according to the manufacturer’s recommendations. Check the burner performance. Refer to the section “Set combustion with test instruments”. It is good practice to make a record of the service performed and the combustion test re sults. • Removing Nozzle Line for Service WARNING! Correct Nozzle and Flow Rate Required Incorrect nozzles and fl ow rates could result in impaired combustion, under-fi ring, over-fi ring, sooting, puff-back of hot gases, smoke and potential fire or asphyxiation hazards. Use only nozzles having the brand, flow rate (gph), spray angle and pattern specified by the appliance manufacturer or Beckett Residential Burner OEM Spec Guide, Part #6711. Follow the appliance manufacturer’s specifications for the required pump outlet pressure for the nozzle, since this affects the fl ow rate. • Nozzle manufacturers calibrate nozzle fl ow rates at 100 psig. • This burner utilizes pressures higher than 100 psig, so the actual nozzle flow rate will be greater than the gph stamped on the nozzle body. (Example: A 1.00 gph nozzle @ 140 psig = 1.18 gph) For typical nozzle flow rates at various pressures see accompanying chart. 1. Turn off power to burner before proceeding. 2. Disconnect copper oil connector tube from nozzle line. 3. Loosen the screw that fastens the rear access door. 4. Remove splined nut. 5. Remove the nozzle line assembly from the burner, being careful not to damage the electrodes or insulators while handling. Stop halfway to removeigniter/transformer wires. 6. To replace the nozzle assembly, reverse the above steps. “HLX” head air tubes – Be sure stopscrew is fastened securely. Seat stop screw on back of choke ring to set the position of the head. “FBX” head air tubes – Use T gauge to set the “Z” dimension to 1-1/8” +/- 1/32” • Nozzle Installation Perform the following steps when replacing a nozzle. 1. Remove the nozzle line assembly to gain access to the nozzle. 2. Use a 3/4” open-end wrench to hold the nozzle adapter. DO NOT attempt to remove or replace the nozzle without securing the adapter, as nozzle alignment could be seriously affected. 3. Do not squeeze the electrodes when handling the nozzle line assembly. Excessive force could change the electrode tip settings or damage the ceramic electrode insulators. 4. Use a 5/8” open-end wrench to carefully remove the existing nozzle. Nozzle Flow Rate by Size Nozzle flow rate U. S. gallons per hour of No. 2 fuel oil when pump pressure (psig) is: Nozzle size (rated at 100 psig) 125 psi 140 psi (factory std.) 150 psi 175 psi 200 psi 0.40 0.45 0.47 0.49 0.53 0.56 0.50 0.56 0.59 0.61 0.66 0.71 0.60 0.67 0.71 0.74 0.79 0.85 0.65 0.73 0.77 0.80 0.86 0.92 0.75 0.84 0.89 0.92 0.99 1.06 0.85 0.95 1.01 1.04 1.13 1.20 0.90 1.01 1.07 1.10 1.19 1.27 1.00 1.12 1.18 1.23 1.32 1.41 1.10 1.23 1.30 1.35 1.46 1.5...

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