Operating instructions
Part number 550-141-887/0800
11
AHE Series 4 Direct Vent Wall-Mounted Boilers — Boiler Manual
2b Venting — side venting installation con’t
Prepare mounting panel
continued
Inside
15. Insert wall sleeve (see Figure 32, item 1, page 44) into outside wall
plate assembly.
16. Measure tube lengths. See Figure 6 on page 10.
17. Cut tube lengths. Top tube will be longer than bottom tube.
18. Final location of boiler will be determined by proper slope to vent/air
intake tubes. Vent must slope downward from boiler ¼" per foot of
vent run to prevent outside moisture from draining into boiler. See
Figure 7, right.
19. Check vent tube slope:
a. Place top tube in top opening of outside wall plate (See Figure 32,
items 1 and 2 on page 44).
b. Measure from floor to bottom of tube at side wall.
c. Measure from floor to bottom of tube at plenum box end of tube.
d. Distance should differ ¼" per foot of vent run (length of top tube).
Adjust large template to locate bottom-of-tube mark at correct
slope.
e. Remove tube.
20. Drill stud holes in template. Remove template.
21. Apply generous bead of silicone sealant around insertion end of tubes,
1" from end of tube.
22. Place tubes in openings. See Figure 8.
23. Place inside wall plate (see Figure 32, page 44, item 3) over tubes, against
wall.
24. Slide mounting panel (Figure 32, page 44, item 5) over tubes. Tubes
will extend into plenum box openings.
25. Securing mounting panel to studs with (2)
5
/
16
" x 2¼" lag screws
provided. Use toggle bolts on plywood.
26. Place a continuous amount of silicone sealant around junctions of tubes
and plenum boxes. Also place sealant in four (4) screw holes where
blank cover plate was attached to the bottom (air intake) plenum box.
Smooth sealant to provide complete seal. See Figure 8.
27. Fasten inside wall plate, using (4) #10 x ½" screws provided.
Reassembly
When vent/air intake system is disconnected for any reason, reassemble
and reseal per this manual section.
Silicone sealant must be used where indicated. Vent/air
intake system must be sealed gas-tight to prevent
possibility of flue gas spillage and carbon monoxide
emissions, resulting in severe personal injury, death or
substantial property damage.
Figure 8 Side venting installation
Fasteners
Screws
88709
Silicone
sealant
Figure 7 Vent slope
88708
¼" slope down
per linear foot
Silicone sealant