NCP Comfort Pack CP9 T Series, Руководство по установке, Страница: 12 / 44

Installation Guide
|
Comfort Pack T Series
with up to
95% Gas Heat
12
Vent Termination Clearances for Direct Vented Installations in the USA
For other gas venting information see page 21.
Operable
VENT TERMINAL
AIR SUPPLY INLET
AREA WHERE TERMINAL
IS NOT PERMITTED
B
Fixed
Closed
c
B
N
F
B
P
D E
J
B
B
B
L
A
Operable
Fixed
Closed
H
o
M
Inside Corner
Detail
G
A
Balcony -
with perpendicular side wall
Combustible &
Noncombustible
X = 24” (610 mm)
Z = 20” (508 mm)
I
K
x
L
Z
v x
v
Item Clearance Description US Installations (per ANSI Z223.1/NFPA 54)
A
Clearance above grade, veranda, porch, balcony or
anticipated snow level
12 in.
B
Clearance to a window or door that may be opened
9 in. for appliances > 10,000 Btu/h (3 kW)
and ≤ 50,000 Btu/h (15 kW),
12 in. for appliances > 50,000 Btu/h (15 kW)
C
Clearance to a permanently closed window
For clearances not specified in ANSI Z223.1/NFPA 54,
clearances shall be in accordance with
local installation codes and
the requirements of the gas supplier and the
manufacturer’s installation instructions.
See Note 1
D
Vertical clearance to a ventilated soffit located above the termi-
nal within a horizontal distance of 2 feet from
the center line of the terminal
E
Clearance to an unventilated soffit
F Clearance to an outside corner
G
Clearance to an inside corner
H
Clearance to each side of the center line extended above elec-
trical meter or gas service regulator assembly
3 feet within 15 feet
above the meter/regulator assembly.
I
Clearance to service regulator vent outlet See Note 2
J
Clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other appliance
9 in. for appliances > 10,000 Btu/h (3 kW)
and ≤ 50,000 Btu/h (15 kW),
12 in. for appliances > 50,000 Btu/h (15 kW)
K
Clearance to a mechanical air supply inlet 3 feet
L
Clearance under a veranda, porch, deck, or balcony See Notes 1 & 2
M
Clearance to each side of the center line extended above
or below vent terminal of the furnace to a dryer or water heater
vent, or other appliance’s vent intake or exhaust
12 in.
N
Furnace combustion air intake clearance to a water heater
vent, dryer or other types of appliance exhausts
https://www.msn.com/en-us/feed 3 feet
O Clearance from a plumbing vent stack 3 feet
P
Clearance above paved sidewalk or paved driveway
located on public property
See Notes 1 & 2
Note: This table is based upon National codes for gas appliances, and are provided as a reference. Refer to Local codes which may supersede the standards and/
or recommendations.
Note 1: Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems. Ice build-up may occur.
Note 2: For clearances note specified in ANSI Z223.1/NFPA 54, clearances shall be in accordance with local installation codes and the requirements of the gas supplier
and the manufacturer’s installation instructions.
The vent for this appliance shall not terminate:
a. Near the soffit vents or crawl space vents or other areas where condensate or vapor could create a nuisance or
hazard or property damage; or b. Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.
Specifications for venting subject to change without notice.