Beckett NX Manual
Hide thumbs Also See for NX:

Advertisement

Quick Links

Potential for Fire, Smoke and Asphyxiation Hazards
Incorrect installation, adjustment, or misuse of this burner could result in death, severe
personal injury, or substantial property damage.
To the Homeowner or Equipment Owner:
Please read and carefully follow all instructions
provided in this manual regarding your
responsibilities in caring for your heating
equipment.
Contact a professional, qualifi ed service agency for
installation, start-up or service work.
Save this manual for future reference.
RESIDENTIAL BURNERS
To the Professional, Qualifi ed Installer or Service Agency:
Please read and carefully follow all instructions provided
in this manual before installing, starting, or servicing this
burner or heating system.
The Installation must be made in accordance with all state
and local codes having jurisdiction.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the NX and is the answer not in the manual?

Questions and answers

Summary of Contents for Beckett NX

  • Page 1 RESIDENTIAL BURNERS Potential for Fire, Smoke and Asphyxiation Hazards Incorrect installation, adjustment, or misuse of this burner could result in death, severe personal injury, or substantial property damage. To the Homeowner or Equipment Owner: To the Professional, Qualifi ed Installer or Service Agency: Please read and carefully follow all instructions Please read and carefully follow all instructions provided provided in this manual regarding your...
  • Page 3: Table Of Contents

    Inspect Chimney or Direct Vent System ........Combustion Air Supply Information ..........Your Beckett burner will provide years of Direct Air Supply and Side Wall Venting ........effi cient operation if it is professionally Prepare the Burner ............8 installed and maintained by a qualifi...
  • Page 4: General Information

    Section: General Information General Information Owner’s Responsibility Hazard Defi nitions Incorrect installation, adjustment, and use of this burner could result in severe personal injury, death, or substantial Indicates a hazardous situation, property damage from fi re, carbon which, if not avoided, will result monoxide poisoning, soot or explosion.
  • Page 5: Special Requirements

    Ignition: Continuous duty solid-state igniter outlined in the following Table. Fuel pump Outlet pressure - Note 2 For applications beyond these limits, consult Beckett Technical Service at 1-800-645-2876. Air tube ATC code - See Table 2 NOTE: Some packaged appliances with burners...
  • Page 6: Inspect/Prepare Installation Site

    Section: Inspect/Prepare Installation Site Inspect/Prepare Inspect Chimney or Direct Vent System Installation Site Fire, Smoke & Asphyxiation Hazard Carefully inspect the chimney or exhaust vent system. Professional Service Make sure it is properly sized and in good working Required condition. Incorrect installation, adjustment, and Follow the instructions supplied by the appliance use of this burner could result in severe...
  • Page 7: Combustion Air Supply Information

    This kit allows combustion air to be NFPA 31 and CSA-B139 regarding providing piped directly to the burner. The NX outside air adapter adequate air for combustion and ventilation. kit may also be used for chimney vent applications that require outside combustion air.
  • Page 8: Prepare The Burner

    Figure 4. – Mounting Burner in Appliance Low Firing Rate Baffl e (If specifi ed) The NX Low Firing Rate Baffl e (LFRB), refer to Figure 3, reduces the burner airfl ow and pressure. Refer to the appliance manufacturer’s instructions or the Beckett OEM Specifi...
  • Page 9: Connect Fuel Lines

    Manual bleeding of the fuel unit is required appliance or ceiling joists. on initial start-up. If connecting a two-pipe fuel supply, install the fuel unit bypass plug. NX Burner Manual...
  • Page 10: Wire Burner

    Section: Wire Burner Wire burner Fuel supply below the level of the burner When the fuel supply is more than eight feet below the level of the burner, a two-pipe fuel supply system Electrical Shock Hazard is required. Depending on the fuel line diameter and Electrical shock can cause severe personal horizontal and vertical length, the installation may injury or death.
  • Page 11: Wiring Connections Diagram

    If the thermostat short cycles or Explosion, Fire, Scald, and operates improperly, it may require Burn Hazard an isolation relay for proper operation. The Beckett All heating appliances must have HIGH A/C Ready Kit (part no. 51950U) provides this function. LIMIT protection to interrupt electrical Wiring instructions are included with the A/C Ready Kit.
  • Page 12: Burner Control

    Standby: The burner is idle, waiting for a call for Cad Cell Resistance Indicator: If the Beckett heat. 7505 control is equipped with the GeniSys Display Valve-On Delay: The igniter and motor are on while...
  • Page 13 Light Color On Continuously Flashing Restricted (Hard) Lockout Soft Lockout Flame Sensed during normal operation Green Recycle (Could be stray light during standby) Control is in Pump Prime mode or Yellow Reset button currently held for 15+ seconds. NX Burner Manual...
  • Page 14 Section: Burner Control Figure 9. Typical Burner Wiring & Burner Sequence of Operation for R7184P Control. Refer to the appliance manufacturer’s wiring diagram for actual specifi cations. SK9359 STANDBY. The burner is idle, waiting for a call for fi ring, the control shuts down the burner, enters heat.
  • Page 15: Start The Burner And Set Combustion

    Locking Nut switch on the burner primary control. Bleed the air from the fuel pump as soon as the burner motor begins rotating. Prepare for combustion tests by drilling a 1/4 ” sampling hole Adjustment Screw Am52000 NX Burner Manual...
  • Page 16 1.15 – 1.35 1.60 – 1.75 The NX burner has a reduced diameter air tube, precision-designed air throttle cup and combustion head for improved performance. This design provides very accurate control of the air/fuel ratio, but the light reaching the cad cell through small holes in these components is limited. Because of this, the average cad cell resistance may be higher than conventional burners with larger openings.
  • Page 17: Set Combustion With Test Instruments

    (2.6% O Step 3: Increase the air to reduce the CO 1.5 to 2 percentage points. (O will be increased by approximately 2.0 to 2.7 percentage points.) Example: Reduce CO from 13.5% to 11.5% (2.6% to 5.3% O NX Burner Manual...
  • Page 18: Perform Regular Maintenance

    Section: Perform Regular Maintenance Perform Regular The following guidelines are provided for routine Maintenance maintenance. □ Replace the oil supply line filter. The line filter cartridge must be replaced to avoid Trained Service Technician’s Regular contamination of the fuel pump and nozzle. Maintenance □...
  • Page 19: Removing Nozzle Line For Service

    Use only nozzles having the brand, fl ow rate (gph), section. spray angle and pattern specifi ed by the appliance manufacturer or Beckett Residential Burner OEM Spec Guide, Part #6711. Remove the nozzle line assembly to gain access to Follow the appliance manufacturer’s specifi cations for the nozzle.
  • Page 20: Check/Adjust Electrodes

    Section: Perform Regular Maintenance Figure 11. – Nozzle Line/Head/Air Tube Assembly (Low fi ring rate shown.) Retention Head Retention Head Electrode Clamp Electrode Clamp Head Support Legs Head Support Legs Electrode Bracket Electrode Bracket Electrode Tips Electrode Tips Electrode Insulator Electrode Insulator Electrode Extension Rods Electrode Extension Rods...
  • Page 21: Check/Adjust "Zero" Calibration

    Tighten the upper acorn nut securely. The rear door must be kept tightly closed. The adjustment screw may now be turned to adjust the head/air setting. SK9670 NX Burner Manual...
  • Page 22: Replacement Parts

    Section: Replacement Parts...
  • Page 23 Section: Replacement Parts NX Burner Manual...
  • Page 24: Limited Warranty Information

    The R. W. BECKETT CORPORATION (“Beckett”) warrants to persons who purchase its “Products” from Beckett for resale, or for incorporation into a product for resale (“Customers”), that its equipment is free from defects in material and workmanship. To qualify for warranty benefi ts, products must be installed by a qualifi...

Table of Contents