Weil-McLain EGH-125, EGH-105 CSD-1control system - Natural gas, Steam boiler replacement parts

CSD-1 control system — Natural gas

Table 6 Steam boiler replacement parts

Before replacing any parts on the boiler — Turn off power to boiler and shut off gas supply. Failure to comply could result in severe personal injury, death or substantial property damage.

Item	Part description	Boiler models	Vendor	Vendor part number	Weil-McLain
					part number
1	Main burner	EGH-105 – 125	Weil-McLain	— See EGH Manual —
2	Main burner with pilot bracket	EGH-105 – 125	Weil-McLain	— See EGH Manual —
3	Pilot burner bracket (not shown)	EGH-105 – 125	Weil-McLain	— See EGH Manual —
4	Pilot burner (not shown)	EGH-105 – 125	Beckett Gas	E48A-1	511-330-166
			Johnson Controls	Q90GE-1
5	Main gas valve	EGH-105 – 125	Robertshaw	7000DERHC-S7C	511-044-287
6	Manual gas valve, 1" NPT	EGH-105 – 125	Watts	FBV3-06	511-246-290
7	Leak test valve	EGH-105 – 125	Key Gas		511-246-339
8	Pilot gas valve	EGH-105 – 125	Honeywell	V8046C-1014	511-044-039
			Johnson Controls	H91ABG
8a	Pilot gas pressure regulator	EGH-105 – 125	Maxitrol	RV20VL	510-933-195
9	Pilot shutoff valve	EGH-105 – 125	Conbraco	53-300-01	511-246-345
10	Pilot tubing, alum. 1/8" O.D. x 34" long	EGH-105 – 125	Available at local supply house
11	Ignition control	EGH-105 – 125	United Technologies	1003-615	511-330-086
12	Impulse relay	EGH-105 – 125	Potter-Brumfield	S89R-11ABD1-24	510-350-226
13	Push-button switch	EGH-105 – 125	Honeywell	AML21CBA2AA	511-624-580
			Eaton Controls	221K11810
14	Lens cover	EGH-105 – 125	Honeywell	AML51-C10R	511-624-581
			Eaton Controls	220PM02A
15	Light bulb	EGH-105 – 125	TI-¾ (available at local supply house)
16	Wiring harness, pumped return steam	EGH-105 – 125	Weil-McLain		591-391-888
	Wiring harness, gravity return steam	EGH-105 – 125	Weil-McLain		591-391-887
		EGH-105	Effikal	RVGP-KS-10BF	381-800-446
17	Vent damper assembly — optional		Johnson Controls	Q35GP-2 (note 1)
	(not for use in Canada)
		EGH-115 – 125	Effikal	RVGP-KS-12BF	381-800-447
			Johnson Controls	Q35GR-2 (note 1)
18	Vent damper actuator	EGH-105 – 125	Effikal only	RVGP	510-512-337
			Johnson only	M35BE-1C	510-312-255
19	Vent damper harness	EGH-105 – 125	Weil-McLain	10C321	591-391-795
20	Limit control, automatic reset	EGH-105 – 125	Honeywell	PA-404-A	510-312-135
			White-Rodgers	P47EA-3	510-311-023
21	Limit control, manual reset	EGH-105 – 125	Honeywell	L404C-1147	510-312-060
22	Probe LWCO, manual reset	EGH-105 – 125	McDonnell & Miller	PS852M-24	511-114-530
23a	Float LWCO, automatic reset	EGH-105 – 125	McDonnell & Miller	67W-1	511-114-494
23b	Float LWCO/pump control, auto reset	EGH-105 – 125	McDonnell & Miller	42-A	511-114-531
24	Pressure gauge	EGH-105 – 125	Ametek	P505K	510-218-045
			Winter	E1437
25	Transformer/relay	EGH-105 – 125	Honeywell	R8285D-5001	510-312-169
Note 1 — Johnson damper assembly consists of M35BC actuator and Y15 vent pipe.
Replacement parts must be purchased through a local Weil-McLain distributor. When ordering, specify boiler model and series and
include description and number of replacement part. Results from using modified or other manufactured parts will not be covered
by warranty and may damage boiler or impair operation.
	Refer to boiler manual for parts not listed above.
Part Number 550-110-677/0299					35