Installing The Flue Collar; Installing The Back Access Door - Weil-McLain 4 Series Manual

sTeam series
94

Installing the Flue Collar

See Figure 16, item D (flue collar assembly).
1 Thread two 1/2" nuts on round end of 1/2" x
4-1/4" stud Lock nuts together
2 Thread flat end of stud into tapped hole inside
flue-way outlet
3 Remove nuts
4 Repeat steps 1-3 for the remaining three studs
5 Apply 1/8" continuous bead of rope adhesive in
groove around flue collar.
6 Position 1/2" uncoated sealing rope in groove,
bringing the ends of rope together at the top and
center of the rectangular plate Apply an ample
amount of rope adhesive around the two ends to
complete an air-tight seal
7 Position the flue collar over studs. The breeching
damper handle must point up
8 Tightly secure flue collar to rear section using 1/2"
nuts and washers

Installing the Back Access Door

See Figure 16, items K40 (back access door
assembly) and K41(refractory shield for back access
door)
1 Insert access door shield into back section opening
2 Push against shield until it bottoms against stops
3 Apply 1/8" continuous bead of rope adhesive in
groove around back access door opening
4 Position 0 325" silicone-coated rope in the groove
a Cut the rope so the two ends meet in the
groove at the top and center of the back
access door without stretching the rope Do
not overlap the rope
b Apply an ample amount of rope adhesive around
the two ends to complete an air-tight seal
5 Secure four mounting studs in holes around back
access door opening
6 Position access door assembly over studs
7 Hand-tighten four nuts to secure access door
550-100-157/0523
boiler manual
4
Figure 16 Rear section block assembly components
D
K41
K40
230057
insTallaTion
27
1
2
3
4
5
6
7
8