Beckett Instruction Manual – Model NX Oil Burner Prepare before installing Verify specifications Be aware of hazard definitions DANGER Denotes presence of a hazard which, if ignored, will result in Capacity 9-slot head severe personal injury, death, or substantial property damage.
WARNING 2.50 installation instructions. Do not attempt to install outside air piping without using the NX outside air adapter and instructions. Failure to do so could result 3.00 in burner or heating appliance failure, causing potential severe personal injury, death or substantial property damage.
(continued) Low Firing Rate Baffle Use care when removing and installing oil nozzles: The NX Low Firing Rate Baffle (LFRB), item 25, page 11, reduces the burner CAUTION • Inspect the nozzle adapter before installing nozzle. If it is grooved or air flow and pressure.
Instruction Manual – Model NX Oil Burner Beckett Prepare burner & site Check/adjust “Zero” calibration Prepare burner (continued) See Figure 3. The zero calibration has been factory set on burners Check/adjust electrodes with factory-installed air tubes. Make sure the retention head is securely against the stops in the retention ring when the Check the electrode tip settings.
Beckett Instruction Manual – Model NX Oil Burner Set head/air adjustment plate position 1. See Figure 4. Loosen the splined nut and lower acorn nut. (DO NOT loosen the top left acorn nut. This is used only for setting the zero calibration.) 2.
When the fuel supply is below the level of the burner, a two-pipe fuel supply • When using the Beckett universal adjustable flange, mount the air tube at system is required. Depending on the fuel line diameter and horizontal and a 2°...
Instruction Manual – Model NX Oil Burner Beckett Start up & adjust burner Service & maintain burner Perform regular maintenance Start up burner/set combustion This equipment must be serviced only by a qualified service WARNING Do not attempt to start the burner when excess fuel or vapor WARNING agency.
Beckett Instruction Manual – Model NX Oil Burner Replacement parts SK9671 Item Description Part No. Item Description Part No. Air adjustment mechanism assembly 51794 Igniter, electronic 51771U Air guide 101101 Inlet air box 1010 Air tube combination Specify Inlet air louvers...