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Tx I&O Manual
(a) For all horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or
in part for residential purposes, including those owned and 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 CARBON MONOXIDE DETECTORS At the time of installation of the side wall
horizontal vented gas fueled 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 and on each additional level of the dwelling, building or structure served by the
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 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 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 30 days to comply with the above requirements; provided,
however, that during said 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 and 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 fueled heating boiler 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"
(plate included with boiler).
INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall
4.
not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current
1.
edition of NFPA 54 as adopted by the Board; and
2.
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.
(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 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 SYSTEM NOT PROVIDED:
When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide
the parts for venting the flue gases, but identifies "special venting systems", the following requirements shall be
satisfied by the manufacturer:
The referenced "special venting system" instructions shall be included with the appliance or equipment
1.
installation instructions; and
The "special venting system" shall be Product Approved by the Board, and the instructions for that system shall
2.
include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts list for venting instructions, and/or all venting design instructions shall remain with
the appliance or equipment at the completion of the installation.
IN THE STATE OF MASSACHUSETTS ONLY
│Introduction
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