Weil-McLain 550 MBH Nstallation And Operation Manual page 120

®
SlimFit Series 3
Dimensions
Dimensional data
Boiler supply and return connections are both 2" NPT.
1
2 Circulator must be mounted in the return piping.
Relief valve is shipped loose.
3
See page 12 for mounting details. Relief valve mounts on supply pipe off of supply tee as shown.
Boiler gas connection, 1¼" NPT.
4
120
COMMERCIAL CONDENSING GAS
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FIRED WATER BOILER
Notes
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Boiler Manual
Part number 550-100-168/0516