WHL-038 Rev. 1.29.16
25
D. Exhaust Vent and Intake Pipe Location
DETERMINE EXHAUST VENT AND INTAKE PIPE LOCATION –
NOTES:
INSTALLATIONS IN THE UNITED STATES
A.
Provide a minimum of 1 foot clearance from the bottom of the
exhaust vent and intake pipe above the expected snow accumulation
level. Snow removal may be necessary to maintain clearance.
B.
Provide a minimum of 1 foot distance from exhaust vent
termination to any door, operable window, or gravity intake into any
building.
C.
Provide a minimum of 1 foot distance from exhaust vent
termination to any permanently closed door or window.
D.
Provide a minimum of 4 feet vertical clearance from the exhaust
vent to all roof overhangs.
E.
Locating exhaust vent termination near roof overhangs will result
in the formation of icicles in freezing weather, and could result
in blockage of the exhaust vent. To prevent icicles from forming,
maintain 4 feet vertical clearance from the exhaust vent to all roof
overhangs.
F.
Provide 4 feet clearance from the outside corner of vertical
walls, chimneys, etc., as well as horizontal corners created by roof
overhangs.
G.
Provide 6 feet clearance from the inside corner of vertical
walls, chimneys, etc., as well as horizontal corners created by roof
overhangs.
H.
Provide 4 feet clearance from center line within a height of 15 feet
above electrical meters, gas meters, gas regulators, relief equipment,
exhaust fans and inlets.
I.
Provide 4 feet horizontal clearance from electrical meters, gas
meters, gas regulators, relief equipment, exhaust fans and inlets. In
no case shall the exit terminal be above or below the aforementioned
equipment unless the 4 foot horizontal distance is maintained.
J.
This boiler vent system shall terminate at least 3 feet (0.9 m) above
any forced air intake located within 10 ft (3 m).
NOTE:
This does not apply to the combustion air intake of a direct-
vent appliance.
K.
When venting with a two pipe system, maximum distance
between exhaust vent and intake pipe is 6 feet (1.8 m). Minimum
distance between exhaust vent and intake pipe on single direct
vented appliance is 10” (0.255 m) center-to-center. Minimum
distance between exhaust vents and intake pipes on multiple boilers
is 10” (0.255 m) center-to-center.
L.
When adjacent to a public walkway, locate exit terminal at least 7
feet above grade.
In addition:
•
Total length of vent piping shall not exceed the limits specified
in this manual.
•
The vent piping for this direct vented appliance is approved for
zero clearance to combustible construction.
•
The flue products coming from the exhaust vent will create a
large plume when the boiler is in operation. Avoid venting in
areas that will affect neighboring buildings or be considered
objectionable.
•
DO NOT locate exhaust vent or intake pipe in a parking area
where machinery may damage the pipe.
•
DO NOT locate the exhaust vent or intake pipe terminals under
a porch, balcony, or veranda.
•
Avoid terminating exhaust vents near shrubs, air conditioners,
or other objects that will obstruct the exhaust stream.
•
DO NOT vent over a public walkway. Condensate could drip or
freeze and create a nuisance or hazard.
•
NOTE:
Due to potential moisture build-up, sidewall venting
may not be the preferred venting option. Carefully consider
venting installation and location to save time and cost.
INSTALLATIONS IN CANADA
NOTE:
Canadian installation must comply with the CAN/CSA B149.1
code and applicable local codes and supersede the restrictions for the
United States outlined in this section.
The building owner is responsible for keeping the exhaust
and intake terminations free of snow, ice, or other potential
blockages, as well as scheduling routing maintenance. Failure to
keep the vent piping terminations clear and properly maintain
the boiler could result in property damage, severe personal
injury, or death.
For each floor containing bedroom(s), a carbon monoxide
detector and alarm shall be placed in the living area outside
the bedrooms, as well as in the room that houses the boiler.
Detectors and alarms shall comply with NFPA 720 (latest
edition). Failure to comply with these requirements could result
in product damage, severe personal injury, or death.
Figure 11 - Exit Terminals for Direct Vent Systems - ANSI Z223.1 / NFPA 54 for US and CAN/CSA B149.1 for Canada
It is required to insert exhaust and intake screens into the vent
terminations to prevent blockage caused by debris or birds.
Failure to keep terminations clear could result in property
damage, severe personal injury, or death.
Содержание WBCETNG1000
Страница 14: ...WHL 038 Rev 1 29 16 14 Figure 6 Specifications and Dimensions NOTE All Dimensions Are Approximate ...
Страница 35: ...WHL 038 Rev 1 29 16 35 Figure 24 CascadeTermination Plug Detail Figure 25 Cascade Master and FollowerWiring ...
Страница 36: ...WHL 038 Rev 1 29 16 36 Figure 26 Internal Connection Diagram ...
Страница 65: ...WHL 038 Rev 1 29 16 65 Figure 44 Exterior Replacement Parts ...
Страница 66: ...WHL 038 Rev 1 29 16 66 Table 27 Optional Jacket Replacement Parts Part 15 Installing the Optional Jacket ...
Страница 73: ...WHL 038 Rev 1 29 16 73 Maintenance Notes ...