Installation Requirements Specifi c To The State Of
Massachusetts For Direct Vent, Mechanical Vent, And
Domestic Hot Water Appliances.
For all side wall horizontally vented gas fueled 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 feet above fi nished grade in the area of the vent-
ing, including but not limited to decks and porches, the following
requirements shall be satisfi ed:
1.
INSTALLATION OF CARBON MONOXIDE DETECTORS:
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fi tter shall
observe that a hard wired carbon monoxide detector with an
alarm and battery back-up is installed on the fl oor level where
the gas equipment is to be installed. In addition, the installing
plumber or gas fi tter 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 fueled equipment.
It shall be the responsibility of the property owner to secure the
services of qualifi ed licensed professionals for the installation of
hard wired carbon monoxide detectors.
A. In the event that the side wall horizontally vented gas
fueled 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 fl oor
level.
B. In the event that the requirements of this subdivision can
not 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 dur-
ing 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 ANS/UL
2034 listed and IAS certifi ed.
3.
SIGNAGE: A metal or plastic identifi cation plate shall be per-
manently 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. Th
e sign shall read, in print
size no less than one-half )1/2) inch in size.
“GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-
STRUCTIONS”.
4.
INSPECTION: Th
e state or local gas inspector of the side wall
horizontally vented gas fueled equipment shall not approve
the installation unless, upon inspection, the inspector observes
carbon monoxide detectors and signage installed in accordance
with the provisions of 248 CMR 5.0(2)(a)1. through 4.
5.
EXEMPTIONS: Th
e following equipment is exempt from 248
CMR 5.08(2)(a)1. through 4.:
A. Th
e equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition of
NFPA54 as adopted by the Board; and
B. Product Approved side wall 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.
6.
MANUFACTURER REQUIREMENTS -
A. 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:
• Detailed instructions for the installation of the venting
system design or the venting system components; and
• A complete parts list for the venting system design or
venting system.
B. GAS EQUIPMENT VENTING SYSTEM NOT PROVID-
ED. When the manufacturer of a Product Approved side
wall horizontally vented gas fueled equipment does not
provide the parts for venting the fl ue gases, but Identifi es
“special venting systems”, the following requirements shall
be satisfi ed by the manufacturer:
• Th
e referenced “special venting system” instructions
shall be included with the appliance or equipment
installation instructions; and
• Th
e “special venting systems” shall be Product Ap-
proved by the Board, and the instructions for that
system shall include a parts list and detailed installation
instructions.
7.
INSTALLATION INSTRUCTIONS: A copy of all installation
instructions for all product approved side wall horizontally
vented gas fueled equipment, all venting instructions, all parts
lists for venting instructions, and/or all venting design instruc-
tions shall remain with the appliance or equipment at the
completion of the installation.
3 - INSTALLATION REQUIREMENTS
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