Weil-McLain 550-110-260/0107 manual Description Weil-McLain Part number

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GOLD CGs Gas-Fired Water Boiler — Boiler Manual

12c Replacement parts — base (continued)

Item	Description		Weil-McLain
			part number
	Base insulation kit	CGs-3	381-356-515
	(includes insulation for all base parts above plus gasket material	CGs-4	381-356-516
	needed between block assembly and base)	CGs-5	381-356-517
		CGs-6	381-356-518

	Base assembly kit	CGs-3	381-356-522
	(includes base panels items 1, 2, 3, 4, 5, 6, 7, 8, 11,13, 22 and 23 plus	CGs-4	381-356-523
	insulation, Air box gaskets, and hardware)	CGs-5	381-356-524
		CGs-6	381-356-525
	Inlet air box top panel kit	CGs-3	381-356-501
	(includes items 13 and 14)	CGs-4	381-356-502
		CGs-5	381-356-503
		CGs-6	381-356-504

	Inlet air box front panel kit	CGs-3	381-356-508
	(includes items 11, 12 and 23)	CGs-4	381-356-509
		CGs-5	381-356-510
		CGs-6	381-356-511
1	Base pan (in Base assembly)

2	Boiler leg kit		550-320-219
3	Heat shield (in Base assembly)

4	Burner baffle (in Base assembly)
5	Base left side panel (in Base assembly)

6	Base right side panel (in Base assembly)
7	Base back panel (in Base assembly)

8	Base front cross-tie assembly (in Base assembly)
9	Pilot bracket		450-003-689

10	Pilot burner assembly — Natural gas		511-330-080
	Pilot burner assembly — Propane gas		511-330-081
11	Inlet air box front panel (in Inlet air box front panel kit)

12	Inlet air box front panel gasket (Use Gasket kit)

13	Inlet air box top panel (in Inlet air box top panel kit)
14	Inlet air box top panel gasket (Use Gasket kit)

15	Manifold (per size)	CGs-3	591-126-722
		CGs-4	591-126-723
		CGs-5	591-126-724
		CGs-6	591-126-725
16	Manifold mounting gasket		590-317-406

17	Burner mounting panel	CGs-3	450-003-690
		CGs-4	450-003-691
		CGs-5	450-003-692
		CGs-6	450-003-693
18	Rear spacer strip	CGs-3	550-320-160
		CGs-4	550-320-161
		CGs-5	550-320-162
		CGs-6	550-320-163

19	Burner		512-200-076
20	Burner orifice — Natural gas, sea level		560-529-077
	Burner orifice — Propane gas, sea level		560-529-078

21	Thermal fuse element		512-050-230
22	Grommet for sealing pilot tubing/wiring opening to Air box		591-850-064

23	Inspection port clear plug		591-491-216
24	Hex nut for burner end stud, 5 mm		550-320-170

	Gasket (for Air inlet box covers), 8-foot length		590-317-400

Part number 550-110-260/0107

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Contents Gold CGs How it works Gold CGs Gas-Fired Induced-Draft Water Boiler Contents Installer Please read before proceedingUser 1a Prepare boiler location codes & checklist Installations must follow these codesBefore locating the boiler, check the following 1b Prepare boiler location clearances 1c Prepare boiler location vent system When removing boiler from an existing common vent systemCGs special vent system Vent systemProducts to avoid 1d Prepare boiler location contaminationCombustion air options 1e Prepare boiler location air openingsSpecial considerations Sizing air openingsSizing air openings for CGs installations Orifice replacement procedure 2a Prepare boiler placement & setupPlace boiler/crate near position Inspect orifices and burnersHydrostatic pressure test 2b Prepare boiler pressure testDrain and remove fittings Prepare boiler for test3a Water piping general information 3b Water piping single-zone system Piping multiple zones Piping for radiant heating 3c Water piping multiple zonesSystems or converted gravity SystemsReturn water 130F or higher Valve adjustment Figures 8 and 9 only Temperature gauges3d Piping low temp systems Primary/secondary preferred bypass piping methodPrimary/secondary piping BOILER-bypass piping method Valve adjustmentFigures 8 SYSTEM-bypass piping method Prevent chilled water from entering 3e Water piping refrigeration systemsVenting and combustion air Gas piping Connecting gas supply piping to boilerNatural Gas Propane GasElectrical installation must comply with Field wiringWiring connections Thermostat7a Start-up preparation Freeze protection when usedCheck for gas leaks Verify water chemistryInspect system water piping Inspect base insulation 7b Start-up operate boilerFinal check before starting boiler Start the boilerCheck burner flames 7c Start-up if boiler doesn’t startCheck for Pilot burner flame FigureInstallation and service certificate Check-out procedure checklist9a Operation sequence Schematic wiring diagram 9b Operation wiring diagramsLadder wiring diagram 9c Operating instructions CGs-3 to CGs-6 9c Operating instructions CGs-3 to CGs-6 9c Operating instructions CGs-3 to CGi-6 Verify Proper Operation After Servicing 10a Service and maintenance schedule10b Service & maintenance annual start-up Condensate drain system Burners, base and inlet air boxInducer motor Oiled-bearing circulators10b Service & maint. annual start-up Relief valve, typical Boiler relief valveReview with owner Cleaning boiler heating surfaces11a Troubleshooting procedure Before troubleshootingCheck the following Air pressure switch 11b Troubleshooting air pressure switchCheck pressure switch setting Troubleshooting air pressure readingControl indicator lights Lockout modes 11c Troubleshooting control moduleControl indicator lights NON-LOCKOUT modes Troubleshooting the control moduleControl module connections Chart 1 Troubleshooting Power light status 11d Troubleshooting control module lightsChart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Chart 4 Flame & Power lights flashing Item 8 , Does blower motor operate? Verify Sequence of operation, , Section assembly Base Jacket Trim Controls 12a Replacement partsSection assembly 12b Replacement parts section assemblyBase assembly 12c Replacement parts baseDescription Weil-McLain Part number Jacket assembly 12d Replacement parts jacketBoiler Model Weil-McLain part number Part number 12e Replacement parts trimPropane gas components 12f Replacement parts controlsDimensional drawing 13a DimensionsDOE 13b RatingsRemoval of Combustion Chamber Lining or Base Panels Handling ceramic fiber and fiberglass materials