Burnham V1104H, Installation, Operating And Service Instructions

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Figure 3a: Typical Arrangement For Stub Vent
When a V11H gas fired boiler is connected to
a venting system that is designed so that it will
operate under a negative pressure, the use of Type
C, B, or other manufactured vent systems designed
for negative pressure is acceptable.
When a V11H oil fired or combination gas/oil fired
boiler is connected to a venting system that is
designed so that it will operate under a negative
pressure, the use of Type C, L or other manufac-
tured vent systems designed for negative pressure
is acceptable.
Unlined masonry chimneys are not acceptable.
Lined masonry chimneys are acceptable with the
appropriate vent connectors using materials de-
scribed above.
Lorsqu'une chaudière au gaz V11H est connectée à
un système de ventilation conçu pour fonctionner
sous une pression négative, l'utilisation de
systèmes de ventilation de type C, B ou d'autres
systèmes de ventilation fabriqués conçus pour une
pression négative est acceptable.
Lorsqu'une chaudière au mazout ou combinée au
gaz / mazout V11H est connectée à un système de
ventilation conçu de manière à fonctionner sous
une pression négative, l'utilisation de systèmes
de ventilation de type C, L ou d'autres systèmes
de ventilation fabriqués conçus pour une pression
négative est acceptable.
Les cheminées en maçonnerie non revêtues ne
sont pas acceptables. Les cheminées en maçon-
nerie doublées sont acceptables avec les con-
necteurs d'évent appropriés utilisant les matériaux
décrits ci-dessus.
When a V11H gas fired boiler is connected to a
venting system that is designed so that it will
operate under a positive pressure, manufactured
vent systems, designed and approved for positive
pressure application per UL1738, must be used
(for example, Van-Packer model CS, Protech Model
FasNSeal / FasNSeal W2, Heatfab Saf-T-Vent or
equivalent).
When a V11H oil fired or combination gas/oil fired
boiler is connected to a venting system that is
designed so that it will operate under a positive
pressure, manufactured vent systems, designed
and approved for positive pressure application,
must be used (for example, Selkirk Metalbestos
Model PS / IPS, Van-Packer Model ES or equivalent).
The V11H Series boiler is designed for forced draft
firing and may be used with a conventional natural draft
stack (15′ minimum height) or a stub vent, sometimes
called a diesel stack (see Figure 3a). See Table I for
the proper vent outlet size. For low silhouette vent
terminations, see Figure 3b. Draft controls are not
Lorsqu'une chaudière au gaz V11H est connectée à
un système de ventilation conçu pour fonctionner
sous une pression positive, des systèmes de
ventilation fabriqués, conçus et approuvés pour
une application de pression positive selon UL1738,
doivent être utilisés (par exemple, modèle Van-
Packer CS, modèle Protech FasNSeal / FasNSeal
W2, Heatfab Saf-T-Vent ou équivalent).
Lorsqu'une chaudière au mazout ou à la
combinaison gaz / mazout V11H est raccordée
à un système de ventilation conçu de manière
à fonctionner sous une pression positive, des
systèmes de ventilation fabriqués, conçus et
approuvés pour une application à pression
positive, doivent être utilisés (par exemple, Selkirk
Metalbestos Model PS / IPS, Van-Packer Model ES
ou équivalent).
normally required, although they may be used on
installations where a natural draft stack is used or on
multiple boiler installations with a common stack. The
boiler is provided with a breeching damper, which
should be adjusted to maintain a positive pressure of
0.1″ W.C. in the vent connector box during burner high
fire operation (see breeching pressure sensing port in
Figure 1).
If the venting system is designed for positive or forced
draft venting, the boiler, vent connector and stack will
operate under positive pressure. Gas tight vent systems
designed for pressure systems must be used to prevent
flue by-product leakage. The vent height is usually
limited to prevent negative draft, typically three (3) feet
above the roof line (see
F
igure 3a). The damper shall be
adjusted to maintain a positive pressure of 0.1″ W.C. in
the vent connector box during burner high fire operation
(see breeching pressure sensing port in Figure 1).
If the venting system is designed for negative pressure
(natural draft), the boiler still operates with positive
pressure in the chamber and up to the fixed damper on
the flue collar. However, if the venting system is larger
than what is required, the stack will provide a surplus
draft (or negative pressure) that may require the use of
a barometric damper to maintain the positive 0.1″ W.C.
pressure at the flue outlet. Multiple forced draft boiler
stacks should always be designed as negative to ensure
the products of combustion do not exit a boiler that is
not firing.