Weather-Rite UHA100, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 7: V
ENTING
15 of 51
7.3.2 Separated Combustion Heaters
(Models UHA[X]S 30 - 125)
The heaters are designed to be installed as
separated combustion heaters. The vent and air
intake are run as separate pipes to the wall or roof
terminals.
See Page 19, Figure 12 . As an option, the
vent and air intake are run as separate pipes to a
concentric vent box and a concentric vent/air intake
pipe penetrates the wall or roof.
See Page 19,
Figure 13 and Page 20, Figure 14 .
For seperated combustion installation, the vent and
air intake must be fitted with an individual and
correctly sized sealed system and the vent and air
intake must terminate at approved wall and roof
terminals.
Seperated combustion units may not be common
vented.
7.4 Horizontal Venting
Horizontally vented heaters must be individually
vented, no common venting.
Vent pipe must be sloped ¼" (.6 cm) downward for
every 1' (.3 m) away from heater. For vent lengths
greater than 10' (3.0 m), condensation will form.
Insulation is recommended and condensation drains
may be desired. For vents pitched up towards the
vent terminal, place the condensation drain within
10' (3.0 m) of the heater.
In noncombustible walls only, vent terminal
(P/N 02537801-1P) may be used.
For 4'' (10 cm) vents in either combustible or
noncombustible walls, use vent terminal (P/N
90502100) or equivalent insulated vent terminal.
Follow the manufacturer's instructions for proper
installation.
Instead of an insulated vent terminal, a listed thimble
with 2" (5 cm) air gap may be used with a 4" (10 cm)
vent cap (P/N 90502102).
In the State of Massachusetts, the following
regulations apply to horizontally-vented heaters
certified for installation in structures used in whole or
in part for residential purposes (UHA 30-75 only)
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:
Installation of Carbon Monoxide Detectors: At the
time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or
gasfitter 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 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 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
• 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.
• In the event that the requirements of this
subdivision 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 detector with an
alarm shall be installed.
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.
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 piece
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”.
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 provisions of 248 CMR 5.08(2)(a)1 through 4.
7.5 Vertical Venting
Vertically vented standard-vented heaters can be
common vented (up to 4 heaters).
For vent lengths greater than 10' (3.0 m),
condensation will form. Insulation is recommended
and condensation drains may be desired. Venting
through the top of the heater cabinet is not
recommended if vent lengths are longer than 10'
(3 m) UHA[X][S] 30-75 only. In this case, vent from