Weil-McLain Boiler User Manual

Part number 550-141-826/1014 This manual must only be used by a qualified heating installer/service technician. BEFORE installing, read all instructio

SERVICE TECHNICIAN ONLY — read and follow completely.Install boiler — packaged boilers onlyPlace boiler1. Remove circulator strapped to pallet. Circ

SERVICE TECHNICIAN ONLY — read and follow completely.Install boiler — packaged boilers only (continued)Figure 3 Change from back flue outlet to top flu

SERVICE TECHNICIAN ONLY — read and follow completely.Install boiler — non-packaged boilers only Fiberglass wool and ceramic fiber ma-terials are possi

SERVICE TECHNICIAN ONLY — read and follow completely.Install boiler — non-packaged boilers only (continued)Non-Packaged WGO-7, 8 & 9 — install flu

SERVICE TECHNICIAN ONLY — read and follow completely.Perform hydrostatic pressure test1. See Figure 5 and Control Tapping table to install:a. Boiler

SERVICE TECHNICIAN ONLY — read and follow completely.Figure 6 Water boiler controls Install burner (also refer to instructions packed with burner)

SERVICE TECHNICIAN ONLY — read and follow completely.Connect breechingGeneral chimney requirements• Designed for natural draft firing. Connect boiler

SERVICE TECHNICIAN ONLY — read and follow completely.Connect breeching (continued)Figure 7 Back outlet breeching connectionFigure 8 Top outlet breec

SERVICE TECHNICIAN ONLY — read and follow completely.General piping information• All packaged WGO boilers are shipped with an installed combination t

SERVICE TECHNICIAN ONLY — read and follow completely.Connect water piping (continued)Figure 9 Piping with DIAPHRAGM expansion tankFigure 10 Piping w

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely.The following defined terms are used throughout this manual to bring attention to the pre

SERVICE TECHNICIAN ONLY — read and follow completely.Zone 2Zone 1125512131Piping MULTIPLE ZONES1. Follow instructions on page 18 and page 19 to ins

SERVICE TECHNICIAN ONLY — read and follow completely.Connect water piping (continued)Figure 13 Piping with CIRCULATORSFigure 14 Piping with ZONE VAL

SERVICE TECHNICIAN ONLY — read and follow completely.SupplyCirc.Circ.ChillerStrainerExp. tankExp. tank11112Use with refrigeration systems• Install bo

SERVICE TECHNICIAN ONLY — read and follow completely.High temperature limit• To comply with ASME, UL 726 or Canadian requirements, an additional high

SERVICE TECHNICIAN ONLY — read and follow completely.Connect wiring (continued)Figure 17 Wiring diagramPart number 550-141-826/101424GOLD WGO OIL-FIR

SERVICE TECHNICIAN ONLY — read and follow completely.Connect wiring — blocked vent shutoff switch optionFigure 18 Blocked vent shutoff switch install

SERVICE TECHNICIAN ONLY — read and follow completely.Connect oil pipingGeneral oil piping requirements• Location and installation of oil tanks, oil p

SERVICE TECHNICIAN ONLY — read and follow completely.Start-upFill the system1. Close manual and automatic air vents and boiler drain cock.2. Fill to

SERVICE TECHNICIAN ONLY — read and follow completely.Check off steps as completed Boiler and heat distribution units filled with water? Automatic air

SERVICE TECHNICIAN ONLY — read and follow completely.Annual service check listAnnual Service Call Checklist (follow in order listed below)Dates Comme

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely.ContentsUsing this manual . . . . . . . . . . . . . . . . . . . . .2

SERVICE TECHNICIAN ONLY — read and follow completely.Detailed service proceduresCleaning boiler flueways Make sure all electrical connections to boile

SERVICE TECHNICIAN ONLY — read and follow completely.Handling ceramic fiber and fiberglass materialsREMOVAL OF COMBUSTION CHAMBER LINING OR BASE PANELS

SERVICE TECHNICIAN ONLY — read and follow completely.Manual reset temperature switchThermostat44156Figure 23 Manual reset temperature switch wiringAr

SERVICE TECHNICIAN ONLY — read and follow completely.Figure 24 Flue pipe clearances Figure 25 Back vent clearancesFigure 26 Top vent clearancesType

SERVICE TECHNICIAN ONLY — read and follow completely.Replacement partsItem Description Part no.A Regular front section 7022 316-700-215BWide intermedi

SERVICE TECHNICIAN ONLY — read and follow completely.DHJNHCGGMLPEGFRQBAKHHFigure 27 Parts drawingReplacement parts (continued) Repair parts must be

SERVICE TECHNICIAN ONLY — read and follow completely.Replacement parts (continued)Table 7 Series 3 trim partsFig. No.Description Mfr. Mfr. part no. P

SERVICE TECHNICIAN ONLY — read and follow completely.Figure 28 Series 3 trimReplacement parts (continued)16Part number 550-141-826/101437GOLD WGO OIL

SERVICE TECHNICIAN ONLY — read and follow completely.Replacement parts (continued)Model1 2 3Jacket panel with insulation — frontLeft side and rearRigh

SERVICE TECHNICIAN ONLY — read and follow completely.Figure 29 Boiler jacketReplacement parts (continued)Part number 550-141-826/101439GOLD WGO OIL-F

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Follow instructions below to prevent severe personal injury, death or substantial prop

SERVICE TECHNICIAN ONLY — read and follow completely.Figure 30 WGO dimensions — inches (mm) — see Table 9, page 41DimensionsSupply7 3/4 [196.9]Air ve

SERVICE TECHNICIAN ONLY — read and follow completely.Dimensions (continued)Table 9 Dimensions BOILER MODEL NUMBERB LInches mm. Inches mm.WGO-2 10 1/2

SERVICE TECHNICIAN ONLY — read and follow completely.Table 10 GOLD WGO oil-red water boiler ratings®DOEAHRI Certied RatingsBoiler Model(9) Burner

SERVICE TECHNICIAN ONLY — read and follow completely.NotesPart number 550-141-826/101443GOLD WGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boi

Part number 550-141-826/1014GOLD WGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely.Routine maintenance scheduleBeginning each heating season  Call a qualified service tec

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely.OperationWGO (see Figure 1)1. If burner does not fire, check for:• Service switch on b

HOMEOWNER and SERVICE TECHNICIAN — read and follow completely.Troubleshooting Homeowners — The problems and corrections below represent common situa

SERVICE TECHNICIAN ONLY — read and follow completely.Before installing boilerInstallations must comply with• United States• State and local plumbing

SERVICE TECHNICIAN ONLY — read and follow completely.Provide air for combustion and ventilation Do not install exhaust fan in boiler room. Adequate c