Installation / Operation Instruction Manual

Page 29
2. Approved Carbon Monoxide Detectors
Each carbon monoxide detector shall comply with
NFPA 720 and be ANSI/UL 2034 listed and IAS
certied.
3. Signage
A metal or plastic identication 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
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
horizontally 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.
Figure 21. Multiple Side-Wall Terminals,
IMPORTANT: Terminals must be place such that they remain a
minimum of 12” above the expected snow line. Local codes may
have more specific requirements and must be consulted. Refer to the
NFPA 54 National Fuel Gas Code and your local codes for all
required clearances for venting.
Brute HIGH EFFICIENCY COMMERCIAL BOILERS AND VOLUME WATER HEATERS