6
For all side wall horizontally vented gas fueled
equipment installed in every dwelling, building or
structure used in whole or in part for residential pur-
poses, including those owned or operated by the
commonwealth and where the side wall exhaust
vent termination is less than seven feet above fin-
ished grade in the area of the venting, including but
not limited to decks and porches, the following re-
quirements shall be satified:
1. INSTALLATION OF CARBON MONOXIDE DE-
TECTORS:
At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumb-
er or gasfitter shall observe that a hard wired car-
bon 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 install-
ing 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 profes-
sionals 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 sub-
division 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 require-
ments; provided, however that during said thirty
(30) day period, a battery operated carbon mon-
oxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETEC-
TORS:
Each carbon monoxide detector as required in ac-
cordance with the above provisions shall comply
with NFPA 720 and be ANS/UL 2034 listed and IAS
certified.
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 di-
rectly in line with the exhaust vent terminal for the
horizontally vented gas fueled heating appliance or
equipment. The sign shall read, in print size 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 equipment shall not
approve the installation unless, upon inspection,
the inspector observes carbon monoxide detectors
and signage installed in accordance with the provi-
sions of 248 CMR 5.0(2)(a)1. through 4.:
5. 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 NFPA54 as adopted by
the Board; and
2. Product Approved side wall horizontally vent-
ed 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.
6(A) MANUFACTURER REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM PROVIDED.
When the manufacturer of Product Approved side
wall horizontally vented gas equipment provides a
venting system design or venting system compo-
nents with the equipment, the instructions provided
by the manufacturer for installation of the equip-
ment and the venting system shall include:
1. Detailed instructions for the installation of the
venting system design or the venting system
components; and
2. A complete parts list for the venting system de-
sign or venting system.
INSTALLATION REQUIREMENTS SPECIFIC TO THE STATE OF MASSACHUSETTS
FOR DIRECT VENT, MECHANICAL VENT, AND DOMESTIC HOT WATER APPLIANCES.
Содержание G95V
Страница 27: ...27 FIGURE 21A DIRECT VENT TERMINAL CLEARANCES...
Страница 28: ...28 FIGURE 21B NON DIRECT VENT TERMINAL CLEARANCES...
Страница 53: ...53 22 WIRE DIAGRAM FOR TWO STAGE FURNACE WITH ECM...