Weil-McLain NX - Manual (Page 2)

Page 2 WM 550-141-996/1105
RWB 6104WMNX R1005
Table of Contents
Hazard Defi nitions and Owner’s Information ........................................................................................ 3
Information To Be Used Only By Qualifi ed Service Technicians
Weil McLain Burner Specifi cation .............................................................................................................. 4
General Information ......................................................................................................................................... 5
Certifi cations/Approvals………………………………………………………….. .................................................. 5
Notice Special Requirements ........................................................................................................................... 6
Inspect/Prepare Installation Site ................................................................................................................. 7
Clearances to Burner and Appliance ............................................................................................................... 7
Inspect Chimney or Direct Vent System ......................................................................................................... 7
Combustion Air Supply ..................................................................................................................................... 7
Safety Shutoff for Direct Vent System ............................................................................................................. 7
Direct/Sidewall Venting Application ................................................................................................................ 7
Fuel Line Installation ......................................................................................................................................... 8
Fuel Line Valves and Filters ............................................................................................................................. 8
System Wiring .................................................................................................................................................. 8
Prepare the Burner ........................................................................................................................................... 9
General ......................................................................................................................................................... 9
Mount Burner on Appliance ............................................................................................................................. 9
Connect Fuel Lines ........................................................................................................................................... 9
Wiring Connection Diagram ............................................................................................................................. 9
Start the Burner and Set Combustion .................................................................................................... 12
Start-up and Initial Settings ............................................................................................................................ 12
Set Combustion with Test Instruments ......................................................................................................... 13
Cover Installation ............................................................................................................................................ 13
Trained Service Technician’s Regular Maintenance ......................................................................... 14
Removing Nozzle Line for Service ................................................................................................................. 14
Nozzle Installation ........................................................................................................................................... 15
Check/Adjust Electrodes ................................................................................................................................ 16
Check Retention Head Alignment and Cad Cell Sighting ............................................................................ 16
Check/Adjust “Zero” Calibration ................................................................................................................... 16
Blower Wheel Replacement ........................................................................................................................... 17
Replacement Parts Diagram ....................................................................................................................... 18
Replacement Parts Diagram ........................................................................................................................... 18
Replacement Parts List ................................................................................................................................... 19
Beckett Limited Warranty Information ................................................................................................... 20