16
ALTA
Combi Installation, Operating & Service Instructions
110327-07 - 2/23
2 X 4
Wood Stud
Drywall or other
sheathing
Boiler
Wall Bracket
(2X)
Retaining Clip
(4X) 5/16" X 2"
Lag Screw
(4X) 5/16" Flat Washer
See detail
Installed Retaining
Clip Detail
Support
Rail
Rear of
Boiler
Retaining
Clip
Figure 6-5: Mounting Boiler on Wall
6
Preparing Boiler
(continued)
Figure 6-4: Wall Layout and Mounting Holes
18" (457mm)
30" (762mm)
16" (406mm)
1" (25mm)
.4" (10mm)
1" (25mm)
2.5" (64mm)
5" (127mm)
6" (152mm)
10" (254mm)
13" (330mm)
14" (356mm)
2.5" (64mm)
9" (229mm)
14" (356mm)
C
D
Boiler Outline
Relief Valve
C L
Vent
C L
Air
C L
Boiler Supply
C L
Gas
C L
DHW Out
C L
DCW In
C L
Boiler Return
C L
Condensate Drain
C L
A
B
1. Wall bracket is designed to mount on studs
with 16 in. (406 mm) centers or a masonry
wall. For other stud spacing, mount bracket
to 3/4 in. (19 mm) plywood or horizontal 2 x 4
anchored to studs.
CAUTION
Heavy Object.
Do not mount boiler to a hollow wall. Boiler must
be anchored to studs.
2. Mark wall bracket hole locations using dimensions
shown in Figure 6-4. Ensure bracket is level.
3. For wood studs, drill 3/16 in. (4.8 mm) pilot holes
"A" and "B" and attach bracket using provided
5/16 in. x 2 in. lag screws and washers. For wood
studs with drywall or paneling greater than 1/2
in. (12 mm) thick, metal studs, or masonry wall,
use anchors suitable for boiler weight and
appropriate for wall material.
4. Hang boiler on wall bracket. See Figure 6-5.
5. Attach bottom retaining clips to boiler and mark
hole locations. Drill 3/16 in. (4.8 mm) pilot holes
"C" and "D" and attach to wall using provided 5/16
in. x 2 in. lag screws or other anchors appropriate
for wall material.
6. Verify boiler is level and plumb.
!
Mount Boiler