Locating The Boiler; Combustion Air And Vent Pipe Requirements - Dunkirk Quantrum 90-50 Installation Manual

D. Locating The Boiler
7.
Select a location which is level, central to the piping sys-
tems served and as close to the vent and air intake termi-
nals as possible.
8.
Accessibility clearances, if more stringent (i.e. larger clear-
ances) than required fire protection clearances, must be
used for the boiler installation. Accessibility clearances
may be achieved with the use of removable walls or parti-
tions.
9.
The boiler is approved for installation in closets and on
combustible floors. This boiler shall NOT be installed on
carpeting.
10.
The clearances shown in Table #2 indicate required clear-
ances per IAS listing. A minimum 1" clearance must be
maintained between combustible construction and each
of the left, top and back surfaces of the boiler. A minimum
8" clearance is required on the right side, to allow room
for the inlet air pipe. An 18" clearance must be maintained
at a side where passage is required to access another side
for cleaning or servicing, inspection or replacement of
any parts that normally may require such attention. Allow
at least 24" at the front and left side and 8" at the top for
servicing. No clearances are required to venting or com-
bustion air intake piping.
Unit
Top
Left Side
Right Side
Base
Front
Back
Intake/Vent Piping
Near Boiler Hot Water Piping
All distances measured from the cabinet of the boiler.
BEFORE INSTALLING THE BOILER
11.
12.
13.
E. Combustion Air And Vent Pipe Requirements
This boiler requires a dedicated direct vent system. In a direct
vent system, all air for combustion is taken directly from
outside atmosphere, and all flue products are discharged to
outside atmosphere.
Combustion air and vent pipe connections must terminate to-
gether in the same atmospheric pressure zone, either through
the roof or sidewall (roof termination preferred). See Figures
#9 & #10 (in Combustion Air And Vent Pipe section near
center of this manual) for required clearances.
TABLE #2 - BOILER CLEARANCES
Combustible Clearance
Inch (mm)
1 (25.4)
1 (25.4)
8 (203.2)
1 (25.4)
0 (0)
1 (25.4)
0 (0)
1 (25.4)
11
Equipment shall be installed in a location which facilitates
the operation of venting and combustion air intake piping
systems as described in this manual.
Advise owner of boiler to keep venting and combustion
air intake passages free of obstructions. both the venting
and combustion air intake piping systems connected to
the outdoors must permit flow through the piping systems
without restrictions for the boiler to operate.
The boiler shall be installed such that the automatic gas ig-
nition system components are protected from water (drip-
ping, spraying, rain, etc.) during operation and service
(circulator replacement, control replacement, etc.).
Accessibility, Cleaning, and Servicing
Inch (mm)
8 (203.2)
24 (609.6)
24 (609.6)
-
-
-
-
-