Weil-McLain NX manual Professional Maintenance, Page

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