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QB-180/300
Oil Burners — Series 2
For Weil-McLain GO, 66 & 68 Boilers
Burner Manual
Patent 5,961-316
Read all instructions before installing
This manual must only be used by a qualified heating installer/service
technician. Failure to comply could result in severe personal injury, death or
substantial property damage.
Installer Leave all documentation with burner for future reference.
User
Burner must be installed and annually serviced by a qualified installer/service
technician.
Part number 644-500-065/0200
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Summary of Contents for Weil-McLain QB-180
- Page 1 QB-180/300 Oil Burners — Series 2 For Weil-McLain GO, 66 & 68 Boilers Burner Manual Patent 5,961-316 Read all instructions before installing This manual must only be used by a qualified heating installer/service technician. Failure to comply could result in severe personal injury, death or substantial property damage.
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Page 2: Hazard Definitions
QB-180/300 Oil Burners Series 2 — Burner Manual ! ! ! IMPORTANT! — Read this page first Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product. -
Page 3: Table Of Contents
QB-180/300 Oil Burners Series 2 — Burner Manual Contents Hazard definitions ..................2 Table of contents ..................3 Pre-installation considerations ..............4 Burner installation ................... 5 Fuel pumps and oil lines ................8 Wiring, operation and service ..............11 Troubleshooting ..................12 Parts list .................... -
Page 4: Pre-Installation Considerations
QB-180/300 Oil Burners Series 2 — Burner Manual Pre-installation considerations Combustion and ventilation Codes and standards air openings • Install burner in accordance with NFPA 31, Stan- dard for Oil-Burning Equipment and all local codes See appliance manual and NFPA 31 Standard for Oil- and regulations of authorities having jurisdiction. -
Page 5: Burner Installation
QB-180/300 Oil Burners Series 2 — Burner Manual Burner installation Figure 1 Burner components Ignition “E” Clip 3/16“ Oil Line Nozzle Adapter GUN ASSEMBLY Includes: Wires Wrench Adjustment Cam Adjustment Electrode Assembly Spinner Assembly Captive Screw Nozzle Nozzle Adapter Electrode... - Page 6 QB-180/300 Oil Burners Series 2 — Burner Manual Burner installation continued Table 1 Burner nozzle selection Use only the nozzles specified. QB-180 burner nozzle size (Pump pressure is 150 psig) Boiler Pump Air band model pressure setting setting Preferred Alternates...
- Page 7 QB-180/300 Oil Burners Series 2 — Burner Manual Burner settings Figure 3 Adjustment cam setting 4. Reinstall gun assembly: a. Insert gun assembly into burner – do not force it. The gun assembly must be lifted and guided into air cone at end of air tube.
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Page 8: Fuel Pumps And Oil Lines
QB-180/300 Oil Burners Series 2 — Burner Manual Fuel pumps and oil lines General port. Do not use easy flow air bleed valve. It contains higher pressure than operating pressure. All installations must comply with national or local Setting pump pressure with gauge in easy flow air bleed codes and ordinances. - Page 9 QB-180/300 Oil Burners Series 2 — Burner Manual One-pipe oil systems (Figure 6) Figure 6 One-pipe oil system, typical Use one-pipe oil piping only when: • the fuel is gravity fed — or — Air vent • the fuel must be lifted .
- Page 10 QB-180/300 Oil Burners Series 2 — Burner Manual Fuel pumps and oil lines continued Two-pipe oil systems (Figure 7) Figure 7 Two-pipe oil system, typical Fuel pump Use two-pipe installations when fuel must be lifted greater than 8 feet. Fill...
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Page 11: Wiring, Operation And Service
QB-180/300 Oil Burners Series 2 — Burner Manual Wiring, operation and service Wiring Service Wire the burner (and boiler) following instructions in Electrical shock hazard. Failure to shut the burner Control Supplement and the Boiler Manual off electrical supply before servicing can cause severe personal injury, death or substantial property damage. -
Page 12: Troubleshooting
QB-180/300 Oil Burners Series 2 — Burner Manual Troubleshooting If burner The relay in the primary control may not be pulling in — Check for: does not start Defective thermostat Broken wires Dirty thermostat contacts Defective primary control The motor is out on thermal overload — Check for:... - Page 13 QB-180/300 Oil Burners Series 2 — Burner Manual If burner starts and Check for: Insufficient combustion air Flame impingement on target has a smoky flame wall or crown sheet of boiler Improper mixing of oil and air Nozzle afterdrip due to faulty...
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Page 14: Parts List
QB-180/300 Oil Burners Series 2 — Burner Manual Parts list Item Description Weil-McLain Part Number Number QB-180 QB-300 Motor with flange, 120 V.A.C., 1/7 HP, 3450 RPM 643-900-050 Blower wheel 643-900-025 Burner coupling 3 1/4" Length 643-900-105 Air tube gasket... - Page 15 QB-180/300 Oil Burners Series 2 — Burner Manual 5a (QB300) (QB180) 06510 Part number 644-500-065/0200...
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Page 16: Weil-Mclain Limited Warranty
If any parts moved from its original installation site. are found to be defective in manufacture, Weil-McLain will provide replacement of such defective parts with the following exceptions:...