Beckett NX manual

RWB 6104 BNX R02 Page 1 Model NX Oil Burner Potential for Fire, Smoke and Asphyxiation Hazards T o the Homeowner or Equipment Owner: Please read and carefully follow all instructions provided in this manual regarding your responsi- bilities in caring for your heating equipment. Contact a professional, quali fi ed service agency for installation, s[...]

Page 2 RWB 6104 BNX R02 T able of Contents General Information Hazard De fi nitions ...................................................................................................................... .................. 3 Owner ’ s Responsibility ..................................................................................................[...]

RWB 6104 BNX R02 Page 3 Hazard De fi nitions • General Infor ma tion General Infor ma tion Within the boundaries of the hazard warning, there will be information presented describing consequences if the warning is not heeded and instructions on how to avoid the hazard. NO TICE Intended to bring special attention to information, but not related t[...]

Page 4 RWB 6104 BNX R02 General Speci fi cations T able 1 – Burner Speci fi cations Capacity Firing rate: - 0.40 – 1.75 GPH Input: Min. - 56,000 Btu Max - 245,000 Btu Certi fi cation/ Approvals UL certi fi ed to comply with ANSI/UL296 & tested to CSA B140.0 Fuels U. S No. 1 or No. 2 heating oil only (ASTM D396) Canada No. 1 stove oil or[...]

RWB 6104 BNX R02 Page 5 Inspect/Prepar e Installation Site Combustion Air Supply Information See NFP A Standard 31 for complete details. Appliances located in con fi ned spaces: All con fi ned spaces should have two (2) permanent openings; one near the top of the enclosure and one near the bottom of the enclosure. Each open- ing must have a free [...]

Page 6 RWB 6104 BNX R02 Prepare the Burner General In most cases, the burner is ready to mount to the appliance. There can be situations where the burn- er needs to be recon fi gured to perform properly in the appliance. Review the appliance manufactur- er ’s speci fi cations prior to installing to determine if any modi fi cation is required t[...]

RWB 6104 BNX R02 Page 7 The burner is supplied with either a one-stage pump or a two-stage pump based on the oil supply system requirements. Consult the instructions pro- vided with the pump for installation speci fi cations. When installing a one-pipe system , connect the inlet line to the pump inlet. The fuel pump may be installed with gravity f[...]

Page 8 RWB 6104 BNX R02 1. ST ANDBY . The burner is idle, waiting for a call for heat. When a call for heat is initiated, there is a 3- 10 second delay while the control performs a safe start check. 2. V AL VE-ON DELA Y . The ignition and motor are turned on for a 15 second valve-on delay . 3. TRIAL FOR IGNITION (TFI). The fuel valve is opened. A ?[...]

RWB 6104 BNX R02 Page 9 Star t Bur ner and Set Combustion Check/Adjust Zero Calibration for older style Head/Air Adjustment Mechanism. Refer to Figure 5a. Loosen the splined nut and lower acorn nut approximately one turn. (DO NOT loosen the upper acorn nut. This is used only for setting the zero adjustment.) (See Figure 5a.) A 5/16” nut driver or[...]

Page 10 RWB 6104 BNX R02 Set Combustion with T est Instruments Allow the burner to run for approximately 5 to 10 minutes. Set the stack or over- fi re draft to the level speci- fi ed by the appliance manufacturer . Natural Draft Applications; typically over- fi re draft is -0.01” or -0.02” w .c. Direct V enting ; typically may not require dr[...]

RWB 6104 BNX R02 Page 1 1 Removing Nozzle Line for Service (Refer- ence the Replacement Parts Diagram.) • T rained Ser vice T echnician ’s R e gular Maintenance Before proceeding, turn off the main power switch to the burner . Remove the burner cover by loosening the four thumb screws (two on each side of burner). Disconnect the copper connecto[...]

Page 12 RWB 6104 BNX R02 Nozzle Installation • Nozzle fl ow 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[...]

RWB 6104 BNX R02 Page 13 T rained Ser vice T echnician ’s R e gular Maintenance Figure 7. – Nozzle Line/Head/Air T ube As- sembly (Low fi ring rate shown.) Retention Head Retention Head Head Support Legs Head Support Legs Electrode Tip s Electrode Tip s Electrode Clamp Electrode Clamp Electrode Bracket Electrode Bracket Electrode Insulator Ele[...]

Page 14 RWB 6104 BNX R02 Figure 9. – Blower wheel assembly SK9670 Blower Wheel Replacement For installation or replacement of a blower wheel, insure that there is a space between the blower wheel and the motor face of 0.1 15”. Refer to Figure 9. •[...]

RWB 6104 BNX R02 Page 15 For best performance specify genuine Beckett replacement parts R eplacement Par ts Diag r am SK967101 Item Description Part No. 1 Air guide 101 101U 2 Head/Air adjustment mechanism assembly 51794U 3 Splined nut 3666 4 Coupling 2454 5 CleanCut Fuel Pump, (Includes Mounting Screws ¼ -20 x 7/8” - Part # 4189) 2184404U 6 Con[...]

Page 16 RWB 6104 BNX R02 Limited WARRANTY For Residential, Commercial and Specialty Burners The R. W. BECKETT CORPORATION (“Beckett”) warrants to persons who purchase its Beckett burners from Beckett for resale or for incorporation into a product for resale (“Customers”) that its equipment is free from defects in material and workmanship un[...]