34
AMPW 400-1000L I&O Manual
. Venting
(continued)
b. In addition to the above requirements, if there
is not one already present, a carbon monoxide
detector with an alarm and a battery back-up
shall be installed and located in accordance
with the installation requirements supplied with
the detector on the floor level where the gas
equipment is installed. The carbon monoxide
detector with an alarm shall comply with 527
CMR, ANSI/UL 2034 Standards or CSA 6.19 and
the most current edition of NFPA 720. In the
event that the requirements of this subdivision
can not be met at the time of the completion of
the installation of the equipment, the installer
shall have a period of thirty (30) days to comply
with this requirement; provided, however, that
during said thirty (30) day period, a battery
operated carbon monoxide detector with an
alarm shall be installed in compliance with the
most current edition of NFPA 720, NFPA 70 and
the Massachusetts State Building Code. In the
event that the sidewall horizontally vented gas
fueled equipment is installed in a crawl space
or an attic, the carbon monoxide detector may
be installed on the next adjacent habitable floor
level. Such detector may be a battery operated
carbon monoxide detector with an alarm and
shall be installed in compliance with the most
current edition of NFPA 720, NFPA 70 and the
Massachusetts State Building Code.
c. 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 fueled
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”.
d. A final inspection by the state or local gas inspector
of the sidewall horizontally vented equipment
shall not be performed until proof is provided
that the state or local electrical inspector having
jurisdiction has granted a permit for installation
of carbon monoxide detectors and alarms as
required above.
2. EXEMPTIONS: The following equipment is exempt
from 248 CMR 5.08(2)(a) 1 through 4:
a. 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
b. Product Approved sidewall horizontally vented
gas fueled equipment installed in a room or
structure separate from the dwelling, building or
structure used in whole or in part for residential
purposes.
3. When the manufacturer of Product Approved
sidewall horizontally vented gas equipment
provides a venting system design or venting system
components with the equipment, the instructions
for installation of the equipment and the venting
system shall include:
a. A complete parts list for the venting system
design or venting system; and
b. Detailed instructions for the installation of the
venting system design or the venting system
components.
4. When the manufacturer of a Product Approved
sidewall horizontally vented gas fueled equipment
does not provide the parts for venting flue gases,
but identifies “special venting systems”, the
following shall be satisfied:
a. The referenced “special venting system”
instructions shall be included with the appliance
or equipment installation instructions; and
b. 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.
5. A copy of all installation instructions for all Product
Approved sidewall horizontally vented gas fueled
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.
