Modular Installation; General Guidelines; Venting - Burnham ALPINE Installation, Operation And Service Instructions

X. Modular installation
A.

General Guidelines

1. Read and follow all venting, combustion air,
water piping, gas piping and electrical instructions
contained in this manual, unless otherwise instructed
in this section.
2. Consult Local Building Codes or National Fuel Gas
Code, NFPA 54/ANSI Z222.3 for restrictions and
instructions on modular boiler installations.
B.

Venting

1. CPVC/PVC Venting
a. Modular CPVC/PVC direct venting is shown in
Figure 39.
b. Each individual module (boiler) must have own
vent pipe and vent terminal. Refer to Section IV
"Venting" of this manual for individual module
(boiler) venting guidelines and options.
WaRning
no common manifolded venting (vent piping and
vent terminals) is permitted.
c. The individual module (boiler) maximum vent
length - see Section IV, "Venting", Table 7.
d. For sidewall venting the minimum horizontal
distance between any adjacent individual module
(boiler) vent terminations is twelve (12) inches.
Additional horizontal spacing between any
adjacent individual module (boiler) vent
terminations as well as extending the distance
from building surfaces to vent termination end
are recommended to avoid frost damage to
building surfaces where vent terminations are
placed.
CaUTiOn
installing multiple individual module (boiler) vent
terminations too close together may result in
combustion product water vapor condensation
on building surfaces, where vent termination are
placed, and subsequent frost damage. To avoid/
minimize frost damage, extend the distance from
building surfaces to vent termination end and
increase the horizontal distance between adjacent
vent terminations.
e. Individual module (boiler) sidewall vent
terminals must be placed at least twelve (12)
inches above the ground plus the expected snow
accumulation.
f. Multiple individual module vertical vent pipes
may be piped through a common conduit or
chase so that one roof penetration may be made.
The minimum horizontal distance between any
adjacent individual module (boiler) roof vent
terminations is one (1) foot.
2. PVC Pipe Air Intake Piping
a. Modular PVC air intake piping is shown in
Figure 39.
b. Each individual module (boiler) must have own
combustion air intake pipe and combustion air
intake terminal. Refer to Section IV "Venting"
of this manual for individual module (boiler)
combustion air intake guidelines and options.
c. The individual module (boiler) maximum
combustion air intake pipe length - see Section
IV, "Venting", Table 7.
d. If possible, locate each individual module
(boiler) both combustion air intake termination
and vent termination on the same sidewall, to
prevent nuisance boiler shutdowns.
However, if same sidewall placement is
problematic, an individual module (boiler) may
be installed using vertical venting and sidewall
combustion air intake termination (or, vice versa)
3. Concentric Combination Venting/Combustion
Air Intake Piping
a. Concentric Combustion Venting and air intake is
shown in Figure 40.
b. Each individual module (boiler) must have
own concentric vent pipe and vent termination.
Follow Section IV "Venting" of this manual for
individual module (boiler) concentric venting
guidelines.
WaRning
no common manifolded concentric venting is
permitted.
c. The individual module (boiler) maximum
concentric vent length - see Section IV,
"Venting", Table 7.
d. For sidewall venting any adjacent individual
module (boiler) concentric vent terminals must
be spaced no closer than 12 inches horizontally
and three (3) feet vertically from each other to
prevent combustion air contamination.
Additional horizontal spacing between any
adjacent individual module (boiler) concentric
vent terminations and increased distance from
building surfaces to concentric vent termination
end are recommended to avoid frost damage to
building surfaces where vent terminations are
placed.
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