ACV Prestige Solo 60 Installation And Maintenance Manual page 96

Product Specifications
Side View PRESTIGE Solo 175/250
11 3/8" [288 mm]
6 7/8" [176 mm]
11 3/8" [288 mm]
15 5/8" [396 mm]
90
3/4" NPSC Pressure Relief Valve
3" Vent Outlet
3" Combustion AIr Inlet
1 7/8"
3/4" NPT Gas Connection
[51 mm]
1-1/4" NPT Boiler Supply
1-1/4" NPT Boiler Return