LAARS Mascot LX MLXC 175 MBH - Install and Operating Manual - Manual (Page 15)

Mascot LX Boilers and Water Heaters Page 11
NOTICE
For Category II and IV boilers, be installed so as to
prevent accumulation of condensate; and
For Category II and IV boilers, where necessary,
have means provided for drainage of condensate.
AVIS
les chaudières de catégories II et IV doivent être
installées de façon à empêcher l'accumulation de
condensat; et
si nécessaire, les chaudières de catégories II et IV
doivent être pourvues de dispositifs d'évacuation du
condensat.
NOTICE
The instructions for the installation of the venting
system shall specify that the horizontal portions of
the venting system shall be supported to prevent
sagging; the methods of and intervals for support
shall be specified. These instructions shall also
specify that the venting system:
Category I, II and IV boilers must be installed so
that horizontal sections have a slope of at least ¼
inch per foot (21 mm/m) to prevent accumulation of
condensate; and
For Category II and IV boilers, where necessary,
have means provided for drainage of condensate.
AVIS
Les instructions d'installation du système
d'évacuation doivent préciser que les sections
horizontales doivent être supportées pour prévenir
le fléchissement. Les méthodes et les intervalles
de support doivent être spécifiés. Les instructions
doivent aussi indiquer les renseignements suivants:
les chaudières de catégories I, II et IV doivent
présenter des tronçons horizontaux dont la pente
montante est d'au moins ¼ po par pied (21 mm/m)
entre la chaudière et l'évent; les chaudières de
catégories II et IV doivent être installées de façon à
empêcher l'accumulation de condensat;
et si nécessaire, les chaudières de catégories II et IV
doivent être pourvues de dispositifs d'évacuation du
condensat.
WARNING
All venting must be installed according to this manual
and any other applicable local codes, including but
not limited to, ANSI Z223.1/NFPA 54, CSA B149.1,
CSAB149.2 and ULC-S636. Failure to follow this
manual and applicable codes may lead to property
damage, severe injury, or death.
INSTALLATIONS IN CANADA require the use
of venting material certified to ULCS636. All Gas
vents connected to the Mascot LX, plastic, stainless
steel or otherwise must be certified to this ULC
standard. Appropriate selection of vent material is
very important for proper performance and safe
operation of the Mascot LX.
The flue temperature of the Mascot LX changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess the
application of the boiler to determine the required
certified vent class. If the Mascot LX is installed in
an application where the outlet water temperature
exceeds 145°F, and/or installed in a closet, class
IIB or higher vent material is required. If the
system temperatures are unknown at the time of
installation, class IIB or higher venting material is
recommended.
IN CANADA all venting used must meet the
following requirements:
1. ULC-S636 certified and marked
2. The first 3 feet of venting must be accessible for
visual inspection.
3. All components used in the vent system must be
from a certified manufacturer.
4 . Vent system components must not be mixed
with alternate manufacturers certified
components and/or unlisted components.
5 . The venting must be installed according to the
vent manufacturers installation instructions.
The unit’s vent can terminate through the roof, or
through an outside wall.
See
Table 4 to select the appropriate vent pipe
diameter. Vent pipe must pitch upward, toward the vent
terminal, not less than 1/4" per foot, so that condensate
will run back to the Mascot LX to drain. Route vent
pipe to the heater as directly as possible. Seal all
joints and provide adequate hangers as required in the
venting system manufacturer’s Installation Instructions.
Horizontal portions of the venting system must be
supported to prevent sagging and may not have any
low sections that could trap condensate. The unit must
not support the weight of the vent pipe.