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Figure 2E: Access Panel and Gasket Installation
III. Pre-Installation and Boiler Mounting
G. General (continued)
H. Boiler Stacking
1. For installations with unusually high space
heating
and/or domestic hot water heating
loads, where employing two (2) Alpine boilers
will offer the benefits of greater operational
efficiency, floor space savings and boiler
redundancy, the Alpine boilers may be
installed stacked one on the top of the other.
Refer to Table 3 “Alpine Boiler Model Stacking
Combinations” for details.
Table 3: Alpine Boiler Model Stacking
Combinations
Bottom
Boiler Model
Top Boiler Model
(2)
ALP080B
(1)
ALP080B
ALP105B
(1)
ALP080B or ALP105B
ALP150B
(1)
ALP080B through ALP150B
ALP210B
(1)
ALP080B through ALP210B
ALP285B
ALP080B, ALP105B, ALP150B & ALP285B
Notes:
(1)
Floor-mounted builds only
(2)
Floor-mounted or wall-mounted build where applicable
2. To field assemble individual Alpine boilers
into a stackable configuration,
use the steps
below:
a. Position the bottom boiler first. Refer to
Sections II “Unpacking Boiler” and III “Pre-
Installation & Boiler Mounting” of the manual
for details.
Always position higher input
boiler model as bottom boiler
.
b. Each Alpine boiler is factory packaged
with two (2) Stacking Boiler Attachment
Brackets (P/N 101679-01) and the bracket
mounting hardware [six (6) self-drilling hex
washer head plated #8 x ½” long screws,
P/N 80860743]. Locate and remove the
brackets and the hardware. The Stacking
Boiler Attachments Bracket has three 7/32”
diameter holes punched in a triangular
pattern. See Figure 3 “Stacking Boiler
Attachment Bracket Placement”.
c. Alpine boiler left and right side panels have
a series of dimples at panel top and bottom.
These dimples are positioning dimples
for Stacking Boiler Attachment Bracket
mounting screws. Side panel bottom
positioning dimples are evenly spaced from
boiler front and back, while side panel top
positioning dimples follow specific pattern
to compensate for Alpine boiler model
variable depth.
d. Position the upper boiler on the top of the
bottom boiler and align boiler front doors
and sides flush with each other.
• Place first Stacking Boiler Attachment
Bracket onto the upper boiler left side
panel, at the panel lower left corner
and align bracket two upper holes
with corresponding side panel lower
dimples.
• The remaining lower bracket hole must
align with a matching bottom boiler left
side panel top positioning dimple.
• Once bracket holes and side panel
dimple alignment is verified, attach the
bracket to top and bottom boiler left
side panels with the mounting screws.
e. Repeat above procedure to install second
Stacking Boiler Attachment Bracket and
secure the stacked boiler right side panels
together at the front right corner.
f. Install the third Stacking Boiler Attachment
Bracket to secure top and bottom boiler left
side panels at the rear left corner. Align
the bracket holes with corresponding
positioning dimples in the top boiler and
bottom boiler left side panels, then secure
bracket with the screws.
g. Repeat above procedure to install the forth
Stacking Boiler Attachment Bracket to
secure stacked boiler right side panels at
the rear right corner.
3. When installing stackable boiler
combinations observe the following
guidelines:
a. Venting - Top and bottom boilers must
have their individual vent piping and vent
terminals.
Summary of Contents for Alpine ALP080B
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