Weil-McLain CGi 4 Series Manual page 15

CGi
SERIES 4 — GAS-FIRED WATER BOILER —
3c
Venting — Direct exhaust — components
Obtain vent system components
1. The following special gas vent systems comply with UL-1738
and ULC-S636 standards and are certified by CSA as the only
systems suitable for use with CGi boilers (all 3" diameter):
Heat-Fab, Inc. Saf-T Vent
•
• Flex-L International, Inc. StaR-34
Z-Flex®, Inc. Z-Vent II
•
• ProTech Systems FasNSeal™
Use only the vent starter of the same manu-
facturer as the vent components. Do not mix
components from different systems. The vent
system could fail, causing flue gas spillage,
resulting in severe personal injury or death.
2. Select vent method based on page 14 and installation require-
ments.
3. Refer to Table 4 for maximum vent run lengths and number
of elbows. Do not exceed data in Table 4.
4. Select vent components from separate CGi, & GV Vent
Component Supplement. All components, including the vent
Massachusetts installations
For all side wall horizontally vented gas fueled equipment
(a)
installed in every dwelling, building or structure used in whole
or in part for residential purposes, including those owned
or operated by the Commonwealth and where 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, the following requirements shall
be satisfied:
INSTALLATION OF CARBON MONOXIDE DETECTORS.
1.
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fitter
shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the floor
level where the gas equipment is to be installed. In addi-
tion, the installing plumber or gas fitter shall observe that
a battery operated or hard wired carbon monoxide detec-
tor 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 professionals 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 detec-
tor with alarm and battery back-up may be installed
on the next adjacent floor level.
b. In the event that the requirements of this subdivi-
sion 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 detec-
tor with an alarm shall be installed.
2. 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 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification 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 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 DIRECT-
LY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS."
Part Number 550-142-302/0124
Boiler Manual
®
Table 4
Maximum vent length
Max. vent Total number of elbows
length (feet)
1
CGi-25 to CGi-6
55
CGi-7
35
CGi-8
28
Note 1: Do not include termination fitting when
counting total number of elbow.
*
(Minimum length for all applications is 2 feet equivalent
with two (2) elbows.
starter, must be of the same vent manufacturer. Do not mix
components.
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 ob-
serves carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)
(a) 1 through 4.
(b) 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
NFPA 54 as adopted by the Board; and
2. 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.
(c) MANUFACTURER REQUIREMENTS — GAS EQUIPMENT
VENTING SYSTEM PROVIDED. When the manufacturer of
Product Approved side wall horizontally vented gas equip-
ment 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:
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 design or
venting system.
(d) MANUFACTURER REQUIREMENTS — GAS EQUIPMENT
VENTING SYSTEM NOT PROVIDED. When the manufac-
turer of a Product Approved side wall horizontally vented gas
fueled equipment does not provide the parts for venting the
flue gases, but identifies "special venting systems", the fol-
lowing requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions
shall be included with the appliance or equipment
installation instructions; and
2. The "special venting systems" shall be Product Ap-
proved by the Board, and the instructions for that sys-
tem shall include a parts list and detailed installation
instructions.
(e) 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.
(Note 1)
2 3 4 5
48 41 34 27 20
28 21 14 7
21 14 7 --
6
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