Burnham V9A Series Installation, Operating And Service Instructions page 19

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Condensate drain must provide gas-tight seal at
maximum vent system pressure to ensure products
of combustion do not leak into living space. Ensure
all condensate traps are filled with water before
operating boiler. Failure to comply could result in
severe personal injury, death or substantial property
damage.
La purge des condensats doit assurer le scellement
des gaz à pression maximale du circuit d'évacuation,
pour garantir toute absence de fuite des produits
combustibles.
S'assurer que chaque collecteur
de condensats soit rempli d'eau avant de faire
fonctionner la chaudière. Le non-respect de ces
instructions peut entraîner des dommages corporels
et matériels sévères, voire la mort.
G.
CATEGORY II OR IV ENGINEERED VENT
SYSTEM
Engineered vent systems must be designed by a
qualified professional using listed components,
accepted best practices, and following local codes.
Les circuits d'évacuation doivent être conçus par un
professionnel utilisant composants répertoriés, les
meilleurs procédés et respectant les réglementations
locales.
1. Overview: Vent system is designed by a qualified
professional. Vent systems with a single boiler
connected may be positive or negative pressure
depending on the design.
2. Common venting without backflow prevention can
allow flue gas from one appliance to interact with
the other appliances in the system. Common venting
systems must be designed with backflow protection.
3. Typical boiler operating information is provided
in Table VII for natural gas and Table VIII for
oil. Engineered vent system must maintain vent
pressures listed in these tables for all operating
conditions.
When multiple boilers are connected to a common
vent system, vent system must be designed to
prevent the backflow of flue gases under all operating
conditions. Failure to comply could cause products
of combustion and/or carbon monoxide to enter living
space, resulting in severe personal injury, death or
substantial property damage.
Lorsque plusieurs appareils sont connectés à un
circuit commun d'évacuation, celui-ci doit être conçu
de manière à empêcher le retour de fumées, et ce
quelles que soient les conditions de fonctionnement.
Le non-respect des présentes instructions peut
provoquer une fuite de monoxyde de carbone et
entraîner des dommages corporels et matériels
sévères, voire la mort.
19

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