9 Install jacket (continued)
Install jacket side panels
1.Remove jacket side panels from cartons.
2.Insert a plastic plug (provided in jacket cartons) in the
3.Before installing side panels, square up the jacket support rails.
Install jacket top panels
1.Place jacket top panels as shown in Figure 25, page 26.
• Remove knockouts for riser pipes or flue outlet using tin snips.
2.Fold out tab in top panel side flange next to top flue knockout to prevent top panel from sagging (see below).
•Place any of the jacket side panels on the rails as shown in Figure 21.
•Butt the side panel against the jacket front panel.
•Push/pull on the upper and lower rails until the
•Place a jacket top panel in position against the jacket front panel to ensure the top alignment is square. Adjust the jacket support rails forward or backward if needed for square alignment.
•Tighten the screws securing the upper and lower rails to the support brackets.
•Tighten the screws securing the front and back panels to the rails.
4.Apply all jacket side panels in the order shown in Figures 22, 23 or 24.
•Remove jacket knockouts as required for tankless heaters.
•Note that panel sequence is not important for boilers not equipped with tankless heater intermediate sections.
3. Install trim collar around damper assembly on top flue boilers.
Install jacket trim
1.Press jacket trim over jacket side panels as shown in Figure 21. Place each jacket trim so the side of the trim with small holes faces toward the boiler.
Figure 21 Installing (removing) jacket side panels and top panels
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