Viessmann VITOLA 200 Installation Instructions Manual page 19

Venting Connection (Oil Installations)
Oil installations
The vent system must comply with all
applicable local and/or national codes.
If installing boiler with a wall vent
system, ensure all manufacturer's
requirements are met.
Venting codes
For oil-fired boilers install venting
system in accordance with all applicable
local codes:. In the absence of local
codes, follow national codes
H Local codes or CSA B139-00 in
Canada, or
H NFPA-31 in the U.S.
Building codes
Masonry or concrete or metal chimneys
(smokestacks) shall be constructed
according to the requirements of the
province/state building code or, in the
absence of such regulations, in
accordance with:
H CSA Standard CAN/CSA-A405
(National Building Code of Canada) in
Canada, or
H NFPA 211 (Standard for Chimneys,
Fireplaces, Vents, and Solid
Fuel-Burning Appliances) in the US.
Metal chimneys also shall meet the
requirements of Chapter 4 of
NFPA 211.
In Canada, factory built chimneys shall:
H Conform to ULC Standards
CAN/ULC-S629 for 1202°F / 650°C,
CAN/ULC-S604 for Type A, or
CAN/ULC-S609 for Type L chimneys,
H Be certified and installed in
accordance with the manufacturer's
certified instructions, and
H Be provided with a clean-out opening
that is equipped with a tight-fitting
removable cap, and constructed so
that no air can enter the clean-out
facility when the cap is in place.
In the U.S., factory built chimneys shall:
H Meet the requirements of NFPA, and
H Be listed, installed and used in
accordance with their listings and
manufacturer's instructions.
Installation of boiler venting
The heating contractor shall ensure all
of the following requirements are met:
H The vent system shall ensure that no
hazard is created by the products of
combustion.
H Provision shall be made to vent the
products of combustion safely to
outside the building, and such venting
shall not pass through or be installed
in return air, supply air, ventilating, or
combustion air ducts or shafts.
H Sufficient air for combustion of the oil
and ventilation of the appliance shall
be supplied to the space wherein the
appliance is located (see section
entitled Combustion Air Supply).
H The house and its mechanical
systems shall be inspected to
determine if operation of exhaust
devices could lead to levels of
depressurization of the house that
would adversely affect the operation
of the oil-burning appliance and its
venting system. If such is the case,
the building owner shall be informed
of the situation in writing.
H The chimney shall be inspected to
ensure that the material construction,
condition, and size are suitable for the
application.
H This boiler/burner combination shall
not be connected to an unlined
chimney. Such chimneys shall be lined
in accordance with the applicable
codes and standards.
H The chimney shall be capable of
exhausting the products of
combustion and of producing a draft
not less than that recommended by
the manufacturer of the appliance
connected thereto, during the mildest
weather conditions under which the
appliance is expected to operate.
During cold weather testing, excess
flow performance shall be
demonstrated to ensure that flow is
adequate in warmer weather.
H An oil burning appliance that depends
on natural chimney draft shall be
connected to an individual chimney
vent used for no other appliance,
except as permitted by the applicable
codes and standards.
H The vent connector of this boiler must
not be connected into any portion of
mechanical draft systems operating
under positive pressure.
Connections
H A chimney flue shall extend at least 3
ft / 1 m above the highest point at
which the chimney comes in contact
with the roof, and not less than 2 ft /
0.6 m above the highest roof surface
or structure within 10 ft. / 3 m of the
chimney on a horizontal plane
perpendicular to the chimney. Not
more than 8" / 200 mm of chimney
flue above the top of the chimney cap
shall be considered in computing
height.
H Down draft and condensation
problems must be corrected.
WARNING
Improper sizing, maintenance,
termination of vent or chimney can
cause flue gases t enter living space.
Any blockage of vent or chimney by
birds' nests, ice, snow, debris, or
other materials can cause flue gases
to enter living space. Flue gases
entering living space can cause
carbon monoxide poisoning which can
result in severe personal injury or loss
of life.
WARNING
Never operate the boiler/burner
without an installed venting system
which safely vents all products of
combustion to the outdoors. The vent
system must comply with all
applicable local and/or national codes.
Use approved vent material only. For oil
use Type L or Type A for the entire
vent.
Chimney liner
A corrosion-resistant approved liner
must be installed in masonry or unlined
chimneys. The liner should be insulated
to prevent condensation of flue gas in
cold weather.
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