Weil-McLain 88 manual Complete block assembly, Install burner mounting plate on front section

Weil-McLain 88 Water and steam boilers — Series 2 — for Gas, Light Oil, & Gas/Light Oil-Fired Burners

Complete block assembly

Install burner mounting plate on front section

b.Position 3/8" sealing rope in groove.

c.Secure assembly to section. Use 10-32 x ¾" truss-head screws.

1.Install four ½" x 3½" studs to secure burner mounting plate to section:

a.Thread and lock together two nuts on rounded end of stud. Thread flat end of stud into one of four holes located around opening.

b.Remove nuts.

c.Repeat steps a and b for remaining studs.

2.Repeat above steps for back observation port as- sembly.

Insert HXT-bars

1. See Figure 12, page 12.

2.Install burner mounting plate:

a.Apply 1/8" continuous bead of sealing rope adhesive in groove around opening in section.

b.Position ½" sealing rope in groove. Overlap ends at least one inch.

c.Install burner mounting plate with part number and the word, "UP," positioned at top. Use ½" washers and nuts.

Install observation port assemblies on front and back sections

1.Install front observation port assembly:

a.Apply 1/8" continuous bead of sealing rope adhesive in groove on observation port.

2.Flue HXT-bars are identified by painted ends. They must be inserted as shown, with the HXT-bars in the sequence:

•Top position

•red-tipped, HXT-bar 24 inches long — place on the top row of pins.

•Middle position

•white-tipped HXT-bar, 26 inches long — place on the first row of pins below the top clean-out plate boss.

•Bottom position

•blue-tipped HXT-bar, 34 inches long — place on the first row of pins below the bottom cleanout plate boss.

Figure 12 Insert HXT-bars through cleanout openings as shown below (omit the bottom, blue-tipped, HXT-bar in the opening between the front section and the first intermediate section)

12 Part No. 550-100-068/0308