Bradford White Brute BNTH Installation And Operation Instructions Manual page 18

Page 14
Figure 15. Multiple Side-Wall Terminals,
the end of the terminal must be at least 12" (30cm) above
the point at which it penetrates the roof, and high enough
above the roof line to prevent blockage from snow. When
the vent terminates on the roof, the combustion air must
terminate at least 12" (30cm) below the vent terminal.
Installations in the Commonwealth of Massachusetts
In Massachusetts the following items are required if 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. From
Massachusetts Rules and regulations 248 CMR 5.08
(begininning on 2nd page following):
1. Installation of Carbon Monoxide Detectors
At the time of installation of the side wall vented gas fu-
eled appliance, the installing plumber or gas-fitter shall
observe that a hard-wired carbon monoxide detector
with an alarm battery back-up is installed on the floor
level where the gas appliance is to be installed. In ad-
dition, the installing plumber or gasfitter shall observe
Figure 14. Minimum Venting Distance
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 horizontally vented gas fueled equipment. It
shall be the responsibility of the property owner to se-
cure the services of qualified licensed professionals for
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 with alarm
and battery back-up may be installed on the next adja-
cent floor level.
b. In the event that the requirements of the subdivision
cannot 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, how-
ever, that during said thirty (30) day period, a battery
operated carbon monoxide detector with an alarm be
installed.
2. Approved Carbon Monoxide Detectors
Each carbon monoxide detector shall comply with
NFPA 720 and be ANSI/UL 2034 listed and IAS certi-
fied.
3. Signage
A metal or plastic identification 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
horizontally vented gas fueled heating appliance or
equipment. The sign shall read, in print no less than
one-half (1/2) inch in size: "GAS VENT DIRECTLY
BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS."
4. Inspection
The state or local gas inspector of the side-wall hori-
zontally vented gas fueled appliance 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) 1-4.
B W
RADFORD HITE