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Weil-McLain 550-141-826/1201 manual Dimensions, Continued, 177.8, 158.8, Vent Pipe, 750.9

Models: 550-141-826/1201

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Dimensions

CONTINUED

Intermediate

7 DIA.

[177.8]

61 /4

[158.8]

For 7 DIA. [177.8]

Vent Pipe

Alternate Return
Alternate Return			299/16
(“A” Boilers Only)			[750.9]

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Page 31

Image 31

Weil-McLain 550-141-826/1201 manual Dimensions, Continued, 177.8, 158.8, Vent Pipe, 750.9

Contents

WGO SERIES 3 OIL-FIREDNATURAL DRAFT WATER BOILER This Manual Includes Installation Start-UpBoiler Parts Part No. 550-141-826/1201Hazard Definitions Symbol DefinitionsWhen Calling or Writing About the Boiler Read This Page FirstInstall Packaged Boiler Table of ContentsTable of Contents Before Installing BoilerProvide clearances around boiler see FIGURE Before Installing BoilerInstallations must comply with Before selecting boiler locationDo not install exhaust fan in boiler room Before Installing Boiler CONTINUEDGo to page 6 to install boiler Go to page 8 to install boilerGo to page 12 to connect breeching and venting Install Packaged BoilerPlace boiler Perform hydrostatic pressure testInstall Packaged Boiler CONTINUED First aid measures Install Non-PackagedBoilerPrecautionary measures Fiberglass wool and ceramic fiber materialsInstall Non-PackagedBoiler CONTINUED CONTROL TAPPING TABLE Install Packaged and Non-PackagedBoilerInstall jacket sizes 7 through 9 only Install boiler controlsInstall Packaged and Non-PackagedBoiler MINIMUM CHIMNEY SIZE TABLE Connect BreechingGeneral chimney requirements Connect breechingBack Outlet Breeching Connection FIGURE Connect BreechingCONTINUED Flue Pipe Bracket one on each side of pipeDIAPHRAGM expansion tank FIGURE Install pipingConnect Water Piping General piping informationConnect Water Piping CONTINUED Connect Water Piping CONTINUED Piping MULTIPLE ZONES3.Zoning with circulators 4.Zoning with zone valvesConnect Water Piping CONTINUED Connect Water Piping Use with refrigeration systemsBurner wiring Connect WiringGeneral wiring requirements Thermostat wiringBoiler Wiring for Forced Hot Water FIGURE Connect WiringLimit Control Wiring Harness Circulator Wiring Service Switch On Boiler Burner Wiring HarnessCONTINUED Connect WiringGeneral oil piping requirements Connect Oil PipingOil piping connection at burner To place in operation Start-UpFill the system Tips for water systemsCheck-outprocedure has been performed Check-OutProcedureInstallation and Service Certificate Installation instructions have been followedAppendix Burner adjustments for “P” and “A” boilersAppendix Close clearance installationCombustible Surface A 6 Protection AppendixW-MSales Parts ListDescription C L M P Parts DrawingD E G H G F Q B A KDIMENSIONS - in DimensionsDIMENSIONS - mm 158.8 DimensionsCONTINUED 177.8WGO GOLD OIL WATER BOILER RATINGS Ratings

[177.8]

[158.8]

Vent Pipe

[750.9]