Smith Cast Iron Boilers GB300 - Manual (Page 21)

GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Page 21
Make sure that the sections are square with the burner
base. Align the bottom front edge of the sections so
they’re flush with the face of the burner base front panel,
Figure 39. Lift the next section into place being careful
not to damage the ceramic blanket or hydronic seals and
install the draw rods, washer and nuts.
Use a spirit level to ensure that the first two sections are
plumb, Figure 39. Once plumb, open the Flue Collector
Box. The box will have a number from 63203 to 63210
on it, Figure 40. Remove the flue baffles and install them
as shown in Figure 41. The flue baffles must be
inserted so they’re as high in the openings as
possible. Once all the flue baffles are installed, evenly
torque each washer backed draw rod nut to 30 ft lbs,
42 Nm Figure 42.
WARNING: The flue baffles must be installed as
shown in Figures 40 and 41. The flue baffles must
not be changed or altered in any way. Failure to
comply with this warning can result in excessive
levels of carbon monoxide which can result in
severe personal injury or death!
Repeat this process for the remaining sections. Once
the draw rods have been torqued install the four “J” bolts,
washer and nuts from the X1 Box that fasten the heat
exchanger to the burner base, Figure 43.
Figure 39 Confirming Sections Are Plumb
Figure 40 Flue Collector Box 63203 to 63210
Figure 41 Flue Baffle Placement
Figure 42 Draw Rod Torquing - 30 ft/lbs, 42 Nm