Instruction/ maintenance manual of the product NX Weil-McLain
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WM 550-141-996/1 105 Page 1 RWB 6104WMNX R1005 Beckett Model NX Burner Please read and follow all instructions on Page 3 in this manual regarding your responsibilities in caring for you r heating equipment Contact a qualified service agency for installation and start-up.
Page 2 WM 550-141-996/1 105 RWB 6104WMNX R1005 T able of Contents Hazard De fi nitions and Owner ’ s Information ........................................................................................ 3 Information T o Be Used Only By Quali fi ed Service T echnicians Weil McLain Burner Speci fi cation .
WM 550-141-996/1 105 Page 3 RWB 6104WMNX R1005 T o the Owner: Thank you for purchasing a Beckett NX burner for use with your heating appliance. Please pay atten- tion to the Safety W arnings contained within this in- struction manual.
Page 4 WM 550-141-996/1 105 RWB 6104WMNX R1005 V erify that burner speci fi cation number (on burner carton) and con fi guration agrees with information below . T able 1. Burner Con fi gurations The table below provides burner speci fi cations and starting air settings for NX burners applied to Weil-McLain Model UO boilers.
WM 550-141-996/1 105 Page 5 RWB 6104WMNX R1005 General Speci fi cations T able 2 – Burner Speci fi cations Capacity LB & LC Firing rate 0.40 – 1.35 GPH Input 56,000 – 189,000 Btu LD & LF Firing rate 1.10 - 1.75 GPH Input 154,000 – 245,000 Btu/h Fuels U.
Page 6 WM 550-141-996/1 105 RWB 6104WMNX R1005 Figure 1. Burner label location State and local approvals are shown on burner rat- ing label mounted on the burner housing. For recommended installation practice in Canada, refer to the latest version of CSA Standard B139 & B140.
WM 550-141-996/1 105 Page 7 RWB 6104WMNX R1005 Inspect/Prepare Installation Site Clearances to Burner and Appliance Provide space around burner and appliance for ease of service and maintenance. Check the minimum clearances against those shown by the appliance manufacturer and by ap- plicable building codes.
Page 8 WM 550-141-996/1 105 RWB 6104WMNX R1005 Fuel Line V alves and Filter Install two high quality oil duty rated shutoff valves in accessible locations on the oil supply line. Locate one close to the tank and the other close to the burner , upstream of the fi lter .
WM 550-141-996/1 105 Page 9 RWB 6104WMNX R1005 Warning – By-pass Plug in 2 Pipe System The burner pump is shipped without the by-pass plug installed. You must install this plug on two-pipe oil systems. If the unit is a one-pipe oil system DO NOT install the plug in the pump.
Page 10 WM 550-141-996/1 105 RWB 6104WMNX R1005 Figure 3. – Burner Connections. Bur ner Prepar ation SK9806.
WM 550-141-996/1 105 Page 1 1 RWB 6104WMNX R1005 G R R BK W O V BL/W BURNER JUNCTION BO X BURNER PRIMAR Y CONTROL 3/T T CAD CELL IGNITOR SOLENOID VA LV E Y Y W W W LIMIT L1 L2 L2 L2 L2 VA LV E IGNITOR.
Page 12 WM 550-141-996/1 105 RWB 6104WMNX R1005 Start the Burner and Set Combustion Start-up and Initial Settings Open the shutoff valves in the oil supply line to the burner . Referencing Figure 5 verify and/or set the Head/ Air Adjustment Pointer to the value shown in T able 1.
WM 550-141-996/1 105 Page 13 RWB 6104WMNX R1005 Chimney V ent Systems: Install the burner cover and repeat Steps 2 and 4 above. If CO 2 increas- es (O 2 decreases), remove the cover and adjust the air setting so the CO 2 (O 2 ) with the cover installed meets the requirements of Step 3.
Page 14 WM 550-141-996/1 105 RWB 6104WMNX R1005 Warning–Professional Service Required This equipment must be installed, adjusted and put into operation only by a qualified individual or service agency that is: x Licensed or certified to install and provide technical service to oil heating systems.
WM 550-141-996/1 105 Page 15 RWB 6104WMNX R1005 Nozzle Installation Obtain a nozzle having the capacity , spray angle, and pattern speci fi ed in the appliance manufac- turer ’s information or Beckett OEM Speci fi cation Guide, Part # 671 1. Make certain the correct nozzle is selected for the actual fuel pump pressure.
Page 16 WM 550-141-996/1 105 RWB 6104WMNX R1005 Check/Adjust Electrodes Check the electrode tip settings, as shown in Fig- ure 7. If necessary , adjust by loosening the elec- trode clamp screw (Figure 8) and slide/rotate the electrodes as necessary . When the adjustment is complete, securely tighten the clamp screw .
WM 550-141-996/1 105 Page 17 RWB 6104WMNX R1005 Professional Maintenance 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 10.
Page 18 WM 550-141-996/1 105 RWB 6104WMNX R1005 For best performance specify genuine Beckett replacement parts Replacement Parts Diagram Professional Maintenance SK967102 SK9803B SK9804B.
WM 550-141-996/1 105 Page 19 RWB 6104WMNX R1005 Item Description Part No. 1 Head/Air adjustment mecha- nism assembly 51794U 2 Air guide 101 101U 3 Gasket, mounting fl ange (not shown) 32389 4 Air tub.
Page 20 WM 550-141-996/1 105 RWB 6104WMNX R1005 Limited WARRANTY For Residential, Commercial and Specialty Burners The R. W. BECKETT CORPORATION (“Beckett”) warrants to persons who purchase its Be.
An important point after buying a device Weil-McLain NX (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Weil-McLain NX yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Weil-McLain NX - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Weil-McLain NX you will learn all the available features of the product, as well as information on its operation. The information that you get Weil-McLain NX will certainly help you make a decision on the purchase.
If you already are a holder of Weil-McLain NX, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Weil-McLain NX.
However, one of the most important roles played by the user manual is to help in solving problems with Weil-McLain NX. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Weil-McLain NX along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center