Page 5
16400-7801 GST REV F
&20021:($/7+2)0$66$&+86(7765(48,5(0(176
For all sidewall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purpos-
HVLQFOXGLQJWKRVHRZQHGRURSHUDWHGE\WKH&RPPRQZHDOWKDQGZKHUHWKHVLGHZDOOH[KDXVWYHQWWHUPLQDWLRQLVOHVVWKDQIHHWDERYH¿QLVKHGJUDGH
LQWKHDUHDRIWKHYHQWLQJLQFOXGLQJEXWQRWOLPLWHGWRGHFNVDQGSRUFKHVWKHIROORZLQJUHTXLUHPHQWVVKDOOEHVDWLV¿HG
INSTALLATION OF CARBON MONOXIDE DETECTORS
At time of installation of side wall horizontally vented gas fueled
HTXLSPHQWWKHLQVWDOOLQJSOXPEHURUJDV¿WWHUVKDOOREVHUYHWKDWDKDUG
wired carbon monoxide detector with an alarm and battery back-up is
LQVWDOOHGRQWKHÀRRUOHYHOZKHUHWKHJDVHTXLSPHQWLVWREHLQVWDOOHG
,Q DGGLWLRQ WKH LQVWDOOLQJ SOXPEHU RU JDV¿WWHU VKDOO REVHUYH WKDW D
battery operated or hard wired carbon monoxide detector 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
UHVSRQVLELOLW\RIWKHSURSHUW\RZQHUWRVHFXUHWKHVHUYLFHVRITXDOL¿HG
licensed professionals for the installation of hard wired carbon monoxide
detectors.
In the event that the side wall horizontally vented gas fueled equipment
is installed in a crawl space or attic, the hard wired carbon monoxide
detector with alarm and battery back-up may be installed on the next
DGMDFHQWÀRRUOHYHO
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 during said thirty (30) day period, a battery operated
carbon monoxide detector with an alarm shall be installed.
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
OLVWHGDQG,$6FHUWL¿HG
SIGNAGE
$PHWDORUSODVWLFLGHQWL¿FDWLRQSODWHVKDOOEHSHUPDQHQWO\PRXQWHGWR
the exterior of the building at a minimum 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
no less the one-half inch (1/2) in size, “GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS”.
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.
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 edition of NFPA 54 as adopted by the
Board; and 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.
0$18)$&785(65(48,5(0(176
*$6(48,30(179(17,1*6<67(03529,'('
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.
0$18)$&785(65(48,5(0(176
*$6(48,30(179(17,1*6<67(01273529,'('
When the manufacturer of Product Approved side wall horizontally vented
JDVHTXLSPHQWGRHVQRWSURYLGHWKHSDUWVIRUYHQWLQJWKHÀXHJDVHVEXW
LGHQWL¿HV³VSHFLDOYHQWLQJV\VWHPV´WKHIROORZLQJUHTXLUHPHQWVVKDOOEH
VDWLV¿HGE\WKHPDQXIDFWXUHU
The referenced “special venting systems” instructions shall be included
with the appliance or equipment installation instructions and; 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.
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.
127(7+()2//2:,1*5(48,5(0(1765()(5(1&(9$5,2860$66$&+86(776$1'1$7,21$/&2'(6127&217$,1(',17+,60$18$/
Summary of Contents for 3-ST-2-GL
Page 2: ...INS_CUST UL REV E Page 2 ...
