Weil-McLain NX manual Professional Maintenance

Page 19

Professional Maintenance

Part Number designations for Replacement Parts Dia- grams on Page 18.

Item

Description

Part No.

1

Head/Air adjustment mecha-

51794U

 

nism assembly

 

2

Air guide

101101U

3

Gasket, mounting flange (not

32389

 

shown)

 

4

Air tube combination,

Specify

 

(Includes Screws, air tube

4396

 

mounting #8 x 3/8)

 

5

Blower wheel

2999U

6

Connector tube assembly, 11”

51127

7

Coupling

2454

8

Door, rear access

32119U

9

Electrode insulator kit

51811U

10

CleanCut Fuel Pump,

2184404U

 

(Requires Mounting Screws ¼

4189

 

-20 x 7/8”)

 

 

 

 

11a

Gasket, igniter baseplate

51942U

11b

Gasket, igniter baseplate hinge

51942U

11c

Gasket, wiring

51942U

11d

Gasket, rear access door

51942U

15

Igniter, electronic

51771U

16

Inlet air box

1010U

17

Inlet air louvers

1013U

19

Nozzle Line Electrode and

Specify

 

Head Assembly

 

20

PSC Motor,

21805U

 

(Requires Mounting screws ¼

4189

 

-20 x 7/8”)

 

21

Primary control

 

 

R7184P Valve-on/Motor Delay

7457U

 

R7184P With Alarm Contacts

7458U

22

Retention head assembly,

51785U

 

6 -slot

 

23

Retention head assembly,

51815U

 

9 -slot

 

24

Splined nut

3666

25

Spring, igniter prop

32058U

26

Electrical box

5770

28

Cover, burner

32395U

29

Mounting plate, burner cover

32399U

30

Thumbscrews, cover mounting

21899U

31*

Pressure Switch Kit, including

21895U

 

switch, (2) hoses & pressure

 

 

switch/cad cell lead

 

32*

Air adapter w/Pressure Port &

5199OU

 

Trim Plate

 

33*

Parts kit, Including (2) hoses &

51988U

 

pressure switch/cad cell lead

 

* Denotes an optional part per burner specification.

For best performance specify genuine Beckett replacement parts

WM 550-141-996/1105 RWB 6104WMNX R1005

Page 19

Image 19
Contents Beckett Model NX Burner Information To Be Used Only By Qualified Service Technicians Table of ContentsGeneral Information To the Owner Hazard DefinitionsResponsibilty Burner Configurations NX Burner Specifications for Weil-McLain Ultra Oil BoilersAir Tube Combination ATC codes General SpecificationsGeneral Specifications Burner SpecificationsBurner label location Possible Sooting Asphyxiation Hazard Inspect/Prepare Installation SiteSite Preparation Supply RequiredSystem Wiring Fuel Line InstallationFuel Line Valves and Filter Pressure Control Required Prepare the BurnerBurner Preparation Pipe System Burner Connections Burner PreparationTypical Burner Wiring & Burner Sequence of Operation Start the Burner Start-up and Initial SettingsStart the Burner and Set Combustion Set Combustion with Test Instruments Cover InstallationTrained Service Technician’s Regular Maintenance Professional MaintenanceService Required Electrode tip gap and spacing Nozzle InstallationCheck/Adjust Zero Calibration Check/Adjust ElectrodesBlower Wheel Replacement Blower wheel assemblyReplacement Parts Diagram Professional Maintenance Warranty

NX specifications

The Weil-McLain NX is a state-of-the-art boiler line that showcases the brand's commitment to energy efficiency, reliability, and innovative technology. Designed for both residential and commercial applications, the NX series is ideal for those seeking powerful heating solutions with minimal environmental impact.

One of the standout features of the Weil-McLain NX is its impressive efficiency rating. The boiler is designed to maximize energy use, ensuring that a greater percentage of fuel is converted into usable heat. This efficiency not only translates to lower utility bills for consumers but also reduces overall carbon emissions, making the NX an eco-friendly choice for heating.

The NX series boasts a robust cast-iron heat exchanger, which is known for its durability and longevity. Cast iron is not only resistant to thermal shock but also provides superior heat retention, enhancing the system's efficiency even further. This heat exchanger design allows for a longer lifecycle and reduced maintenance needs, making it a reliable option for homeowners and businesses alike.

In terms of technology, the Weil-McLain NX comes equipped with advanced control systems that provide precise temperature management and safety features. The intuitive control interface allows for easy adjustments, ensuring that users can tailor their heating experience to their specific needs. Features such as outdoor reset control and multiple stage modulation contribute to optimized performance and energy savings.

The NX is also designed with flexibility in mind. Its compact size allows for installation in a variety of spaces, making it suitable for retrofitting older systems. Additionally, the boiler is compatible with a range of heating applications, from radiant floor heating to baseboard systems, providing versatility in heating configurations.

As for safety, Weil-McLain has incorporated several safety features in the NX series. High-limit controls, flame rollout switches, and low water cutoff devices are standard, ensuring that the system operates safely and efficiently.

In summary, the Weil-McLain NX is a premium choice for anyone in the market for a reliable and efficient heating solution. With its high efficiency, durable construction, advanced technology, and versatile applications, the NX series stands out as a top contender in the boiler market, catering to the demands of modern heating needs while prioritizing sustainability and safety.