PB Heat Peerless Combi 160, User Manual

Page: 43 / 107

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8.9 - Single pipe
vent (not sealed
combustion)
WARNING!!! When utilizing
the single pipe method, provisions
for combustion and ventilation air
must be in accordance with Air for
Combustion and Ventilation, of the
latest edition of the National Fuel
Gas Code, ANSI Z223.1, in Canada,
the latest edition of CGA Standard
B149 Installation Code for Gas
Burning Appliances and Equipment,
or applicable provisions of the local
building codes.
Commercial applications utilizing this
boiler may be installed with a single
pipe carrying the fl ue products to
the outside while using combustion
air from the equipment room. In this
case the following conditions and
considerations must be followed.
WARNING!!! The equipment
room MUST be provided with
properly sized openings to assure
adequate combustion air from
outside. Failure to comply could
result in severe personal injury, death,
or substantial property damage.
• There will be a noticeable increase
in the noise level during normal
operation from the inlet air opening.
• Vent system and terminations must
comply with the venting instructions
set forth in sections 8.1, 8.2, 8.3,
8.4, 8.5, 8.6, 8.7, 8.8.
WARNING!!! Use only the
materials, vent systems, and
terminations listed in Tables 4 and 5.
DO NOT mix vent systems of different
types or manufacturers, unless listed
in this manual. Failure to comply
could result in severe personal
injury, death, or substantial property
damage.
WARNING!!! Fire danger due
to fl ammable materials or liquids. Do
not store fl ammable materials and
liquids in the immediate vicinity of the
boiler.
WARNING!!! Boiler must be
clear and free from combustible
materials, gasoline and other
fl ammable vapors and liquids, and
corrosive liquids and vapors. Never
use chlorine and hydrocarbon
containing chemicals (such as spray
chemicals, solution and cleaning
agents, paints, glues etc.) in the
vicinity of the boiler. Do not store
and use these chemicals in the boiler
room. Avoid excessive dust formation
and build-up.
WARNING!!! Where exhaust
fans, clothes dryers, and kitchen
ventilation systems interfere with the
operation of appliances, makeup air
shall be provided.
NOTICE Installation must comply
with local requirements and with the
National Fuel Gas Code, ANSI Z223.1
for U.S. installations or CSA B149.1
for Canadian installations.
For installation in Canada, vent pipe
system must be certifi ed to ULC-S636
(see Table 4).
NOTICE All vent pipes connections
must be secured following
manufacturer instruction, properly
supported, and the exhaust must
be pitched a minimum of a 1/4 inch
per foot back to the boiler (to allow
drainage of condensate).
8.9.1 - Combustion Air
and Ventilation openings
WARNING!!! Make sure that
combustion air and ventilation
openings are suffi ciently sized and
no reduction or closure of openings
takes place. Please note these
restrictions and its dangers to the
operator of the boiler and to the
homeowner. Failure to comply could
result in severe personal injury, death,
or substantial property damage.
Outdoor combustion air shall be
provided through opening(s) to the
outdoors. The minimum dimension of
air openings shall not be less than 3
in. (80 mm) diameter.
Two Permanent Openings Method.
Two permanent openings, one
commencing within 12 in. (300 mm)
of the top and one commencing within
12 in. (300 mm) of the bottom, of the
room shall be provided. The openings
shall communicate directly, or by
ducts, with the outdoors or spaces
that freely communicate with the
outdoors, as follows:
1. Where directly communicating
with the outdoors or where
communicating to the outdoors
through vertical ducts, each
opening shall have a minimum
free area of 1 in2 each 4000 Btu/
hr (550 mm2/kW) of total input
rating of all appliances located in
the room.
2. Where communicating with the
outdoors through horizontal
ducts, each opening shall have a
minimum free area of 1 in2 each
2000 Btu/hr (1100 mm2/kW) of
total input rating of all appliances
located in the room.
One Permanent Opening Method.
One permanent opening, commencing
within 12 in. (300 mm) of the top of
the room, shall be provided. The
appliances shall have clearances of
at least 1 in. (25 mm) from the sides
and back and 6 in. (150 mm) from the
front of the appliance. The opening
shall directIy communicate with
the outdoors or shall communicate
through a vertical or horizontal duct
to the outdoors or spaces that freely
communicate with the outdoors and
shall have a minimum free area of
1 in2 each 3000 Btu/hr (700 mm2 /
kW) of the total input rating of all
appliances located in the room.
8 - INSTALLATION - Vent & combustion air