Empire Comfort Systems DVLXG55BP90N Installer's Manual page 7

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 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 gasfitter
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 gasfitter 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 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 can not be met at the time of
completion of installation, the owner shall have
a period of thirty days to comply with the above
requirements; provided, however, that during
said thirty 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 feet above grade directly in line with the
exhaust vent termination for the horizontally vented gas
fueled appliance or equipment. The sign shall read, in print
size no less than 1/2 inch in size, "GAS VENT DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
REQUIREMENTS FOR MASSACHUSETTS
4. INSPECTION.
The 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 5.08(2)
a. 1 through 4.
b. EXEMPTIONS: The following equipment is
exempt from 248 CMR 5.08(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 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 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:
1. The referenced "special venting system"
instructions shall be included with the appliance
or equipment installation 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 instruction.
a. 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 instructions shall remain with the appliance
or equipment at the completion of the installation.
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