LAARS NeoTherm NTV (Sizes 150–850 MBTU/h) - Install and Operating Manual - Manual (Page 18)

Page 14 LAARS Heating Systems
1. Installation of Carbon Monoxide Detectors
At the time of installation of the side wall vented gas
fueled 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 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 horizontally
vented gas fueled equipment. It shall be the responsibility
of the property owner to secure the services of quali-
fied 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 adjacent floor level.
b. In the event that the requirements of the subdivision
cannot be met at the time of completion of installa-
tion, 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 be installed.
2. Approved Carbon Monoxide Detectors
Each carbon monoxide detector shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certified.
3. Signage
A metal or plastic identification plate shall be permanent-
ly 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 fu-
eled 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.
Figure 14 - Minimum Venting Distance
Figure 13 - Multiple Side-Wall Terminals,
Air and Vent