Weil-McLain 88 Water and steam boilers — Series 2 — for Gas, Light Oil, & Gas/Light Oil-Fired Burners
18 Part No. 550-100-068/0308
Connect steam boiler piping
(continued)
Model 1288 through 1888 steam (3 or 4 risers required)
Drawing legend & notes
(Figure 23 through Figure 26)
Riser pipes (one for each supply intermediate section)
Horizontal pipes needed to offset the header to allow for expansion and contraction of the header
Steam supply must be located between last riser connection and equalizer elbow
Equalizer elbow — full size or reducing
Equalizer pipe
Close nipple at Hartford loop tee to reduce water hammer potential
Condensate return line (gravity or pumped)
Minimum 4 inches between water line and top of Hartford loop return nipple
Boiler water line — all automatic water level controls must be set to maintain this level
Minimum 24 inches between water line and bottom of header
