HTP CGH-199O Series, Установка, Запуск, Обслуживание, Запасные Части и Гарантия, Страница: 24 / 60

lp-673 Rev. 000 Rel. 001 Date 8.30.18
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B. Exhaust Vent and Intake Pipe Location
The building owner is responsible for keeping the exhaust and intake terminations free of snow, ice, or other potential blockages, as well
as scheduling routine maintenance. Failure to keep the vent terminations clear and properly maintain the heater 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.
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.
Vent Terminal
D
E
B
B
F
B
A
G
H
I
C
B
M
K
A
J
B
B
L
Air Supply Inlet
Area Where Terminal
is Not Permitted
Figure 16 - Vent Termination Clearances
Description
US
(ANSI Z223.1/NFPA 54)
CANADA
(CSA B149.1)
A
Clearance above grade, veranda, porch, deck, or
balcony
12 in.
B
Clearance to window or door that may be opened
4 ft. below or to side of opening;
1 ft. above opening
3 ft.
C Clearance to permanently closed window *
D
Vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 2 feet from
the center line of the terminal
*
E
Clearance to unventilated soffit *
F
Clearance to outside corner *
G Clearance to inside corner *
H
Clearance to each side of center line extended above
meter / regulator assembly
*
3 ft. with a height 15 ft. above me-
ter / regulator assembly
I Clearance to service regulator vent outlet * 3 ft.
J
Clearance to non-mechanical air supply inlet to build-
ing or the combustion air inlet to any other appliance
4 ft. below or to side of opening;
1 ft. above opening
3 ft.
K Clearance to a mechanical air supply inlet
3 ft. above if within 10 ft. hori-
zontally
6 ft.
L Clearance above paved sidewalk or driveway * 7 ft.
1
M Clearance under veranda, porch, deck, or balcony * 1 ft.
2
Table 17 - Vent Termination Clearances
NOTE:
For clearances not specified in ANSI Z223.1/NFPA 54 or CAN/CSA B149.1, use clearances in accordance with local installation codes and the requirements
of the gas supplier.
*Clearance to opposite wall is 24 in.
1
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings that serves both dwellings.
2
Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath floor.