Weil-McLain 78 manual 15b Data and Dimensions, Front, Side, Intermediate, Back

Models: 78

1 32

Page 28

Weil-McLain 78 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners

3" NPT

return

Minimum for

heater

removal

3" NPT

return

Water

line

4" NPT

supply outlets

W=Boiler

section length

Side	Intermediate

28	Part No. 550-141-705

Image 28

Contents

Installation MaintenanceBoiler Manual Start-UpContents 1a Before Installing Boiler InstallationMaintenance Installation must comply with1b Before Installing Boiler Provide clearances for servicing around boilerLay a foundation, if needed Boiler Foundation Length Table2a Set Packaged Boiler or Block Assembly in Place InstallationMaintenance For block assemblyInstall back refractory blanket 3a Assemble BlockPrepare back section Page 3c Assemble Block Install burner mounting plate on front sectionIf using TI sections Prepare remaining sectionsPage 3e Assemble Block Prepare flue collector hood assembly3f Assemble Block • InstallationMaintenance Install flue collector hood assemblyPage 5a Connect Water Boiler Piping InstallationMaintenance Install pipingPage 6a Connect Steam Boiler Piping InstallationMaintenance Install pipingPage Page Page Page Page Page Page Page 12a Install Burner 13a Wiring and Fuel PipingTo install burner To wire burner and boiler controls14a Make Final Adjustments InstallationMaintenance Adjust burner and breeching damperSkim steam boilers 14b Make Final AdjustmentsCheck boiler for gas-tightseal 15a Data and Dimensions • InstallationMaintenance Dimensions15b Data and Dimensions FrontSide Intermediate16a Parts InstallationMaintenance M P D FFigure No 16b PartsDescription 17a Ratings InstallationMaintenance Start-UpPart No. 550-141-705/0600