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Important Note for the Commonwealth of Massachusetts:
From Massachusetts Rules and Regulations 248 CMR 5.08:
(a) For all side wall horizontally vented gas fuelled
equipment installed in every dwelling, building or structure
used in whole or in part for residential purposes, including
those owned or operated by the Commonwealth and
where the side wall exhaust vent termination is less than
seven (7) feet above finished grade in the area of the
venting, including but not limited to decks and porches,
the following requirements shall be satisfied.
1. INSTALLATION
OF
DETECTORS. At the time of installation of the
side wall horizontal vented gas fuelled equipment,
the installing plumber or gas fitter shall observe
that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed
on the floor level where the gas equipment is to
be installed, in addition, the installing plumber or
gas fitter shall observe that a battery operated
or hard-wired carbon monoxide detector with an
alarm is installed on each additional level of the
dwelling, building or structure served by the side
wall horizontal vented gas fuelled equipment. It
shall be the responsibility of the property owner
to secure the services of qualified licensed
professionals for the installation of hard-wired
carbon monoxide detectors.
a. In the event that the side wall horizontally
vented gas fuelled equipment is installed in a
crawl space or an attic, the hard-wired carbon
monoxide detector with alarm and battery
back-up may be installed on the next adjacent
floor level.
b. In the event that the requirements of this
subdivision cannot be met at the time of
completion of installation, the owner shall have
a period of thirty (30) days to comply with the
above requirements; provided, however, that
during said thirty (30) day period, a battery
operated carbon monoxide detector with an
alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS.
Each carbon monoxide detector as required
in accordance with the above provisions shall
comply with NFPA 720 and be ANSI/UL 2034
listed as IAS certified.
3. SIGNAGE. A metal or plastic identification plate
shall be permanently mounted to the exterior of
the building at a minimum height of eight (8) feet
above grade directly in line with the exhaust vent
terminal for the horizontally vented gas fuelled
heating appliance or equipment. The sign shall
read, in print size no less than one-half (1/2)
inch in size, "GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector
of the side wall horizontally vented gas fuelled
equipment shall not approve the installation
CARBON
MONOXIDE
unless, upon inspection, the inspector observes
carbon
monoxide
detectors
installed in accordance with the provisions of 248
CMR 5.089(2)(a) 1 through 4.
b. EXEMPTIONS. The following equipment is
exempt from 248 CMR 5.089(2)(a) 1 through 4.
1. The equipment listed in Chapter 10 entitled
"Equipment Not Required To Be Vented" in the
most current edition of NFPA 54 as adopted by
the Board; and
2. Product Approved side wall horizontal vented
gas fuelled equipment installed in a room or
structure separate from the dwelling, building or
structure used in whole or in part for residential
purposes.
c. MANUFACTURER REQUIREMENTS – GAS
EQUIPMENT VENTING SYSTEM PROVIDED.
When the manufacturer of Product Approved
side wall horizontally vented gas equipment
provides a venting system design or venting
system components with the equipment, the
instructions provided by the manufacturer for
installation of the equipment and the venting
system shall include:
1. Detailed instructions for the installation of
the venting system design or the venting
system components; and
2. A complete parts list for the venting system
design or venting system.
d. MANUFACTURER REQUIREMENTS – GAS
EQUIPMENT
VENTING
PROVIDED. When the manufacturer of a
Product Approved side wall horizontally
vented gas fuelled equipment does not
provide the parts for venting the fuel gases,
but identifies "special venting systems", the
fol- lowing requirements shall be satisfied by
the manufacturer.
1. The referenced "special venting system"
instructions shall be included with the
appliance
or
instructions; and
2. The "special venting systems" shall be
Product Approved by the Board, and the
instructions for that system shall include
a parts list and detailed installation
instructions.
e. A copy of all installation instructions for all
Product Approved side wall horizontally vented
gas fuelled equipment, all venting instructions,
all parts lists for venting instructions, and/or
all venting design instructions shall remain with
the appliance or equipment at the completion
of the installation.
and
signage
SYSTEM
NOT
equipment
installation
OCTOBER / OCTOBRE 2015
7
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