Crown Boiler Phantom-X PHNTM210, Installation And Operating Instructions Manual

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12
III. Pre-Installation and Boiler Mounting
(continued)
H. Boiler Stacking
1. For installations with unusually high space
heating
and/or domestic hot water heating loads,
where employing two (2) Phantom boilers will offer
the benefits of greater operational efficiency, floor
space savings and boiler redundancy, the Phantom
boilers may be installed stacked one on the top of
the other. Refer to Table 3 “Phantom Boiler Model
Stacking Combinations” for details.
Table 3: Phantom Boiler Model Stacking
Combinations
Bottom
Boiler Model
Top Boiler Model
PHNTM210 PHNTM210
PHNTM285 PHNTM285
2. To field assemble individual Phantom 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 Phantom 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]. 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. Phantom 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 Phantom 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.
WARNING
Asphyxiation Hazard. No common manifold
venting is permitted. Each boiler must have its
own individual vent and combustion air pipes
and terminals.
For side-wall venting individual model vent
terminals must terminate not closer than 12
inches horizontally and three (3) feet vertically
from each other in order to prevent combustion
air contamination. For vertical through the roof
venting, individual vertical vent terminals, if
level with each other, must be spaced no closer
than 12 inches horizontally. If vertical terminals
cannot end in one plane, they must be spaced no
closer than three (3) feet horizontally.
Follow instructions in Section IV “Venting”
of the manual for specifics of individual boiler
vent termination. Follow instructions in Section
V “Condensate Disposal” for each individual
boiler flue gas condensate line construction and
condensate disposal. Terminating individual
boiler condensate lines into common pipe prior