Tempstar F9MAC Installation Instructions Manual page 44

INSTALLATION INSTRUCTIONS
Figure 59 Direct Vent Termination Clearance
Item Clearance Description
Clearance above grade, veranda, porch, deck, balcony, or
A
anticipated snow level
B Clearance to a window or door that may be opened
C Clearance to a permanently closed window
Vertical clearance to a ventilated soffit located above the
D terminal within a horizontal distance of 2' (61cm) from the
centerline of the terminal
E Clearance to an unventilated soffit
F Clearance to an outside corner
G Clearance to an inside corner
Clearance to each side of the centerline extended above
H
electrical meter or gas service regulator assembly
I Clearance to service regulator vent outlet
Clearance to non-mechanical air supply inlet to building or the
J
combustion air inlet to any other appliance
K Clearance to a mechanical air supply inlet
L Clearance under a veranda, porch, deck, or balcony
Clearance to each side of the centerline extended above or
M below vent terminal of the furnace to a dryer or water heater
vent, or other appliance's direct vent intake or exhaust.
Clearance to the vent terminal of a dryer vent, water heater
N
vent, or other appliances direct vent intake or exhaust.
O Clearance from a plumbing vent stack
Clearance above a paved sidewalk or paved driveway located
P
on public property.
u greater than, w greater than or equal to, t less than, v less than or equal to
(1) In accordance with the current CAN/CSA B149.1, Natural Gas and Propane Installation Code
(2) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
Notes:
1 The vent for this appliance shall not terminate
a. Over public walkways; or
b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nuisance or hazard or property damage; or
c. Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.
2. When locating vent terminations, consideration must be given to prevailing winds, location, and other conditions which may cause recirculation of the combustion products of adjacent vents.
Recirculation can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.
3. Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems.
44
Canadian Installation (1)
12 in. (305 mm). 18 in. (457mm) above roof surface
12 in. (305 mm) for appliances u 10,000 Btuh (3 kW) and v
100,000 Btuh (30 kW), 36 in. (914 mm) for appliances u
100,000 Btuh (30 kW)
For clearances not specified in ANSI Z223.1/NFPA 54 or
CAN/CSA B149.1, clearances shall be in accordance with
local installation codes and the requirements of the gas suppli­
er and the manufacture's installation instructions.
3 ft. (.9 m) within a height15 feet (4.5 m) above the meter/reg­
ulator assembly
3 ft. (.9 m)
12 in. (305 mm) for appliances u 10,000 Btuh (3 kW) and v
100,000 Btuh (30 kW), 36" (91 cm) for appliances u 100,000
Btuh (30 kW)
6 ft. (1.8 m)
12 in. (305 mm) Permitted only if veranda, porch, deck, or
balcony is fully open on a minimum of two sides beneath the
floor.
12 in. (305 mm)
3 ft. (.9 m)
3 ft. (.9 m)
7 ft. (2.1 m) A vent shall not terminate directly above a side­
walk or paved driveway that is located between two single
family dwellings and serves both dwellings.
Specifications subject to change without notice.
Gas Furnace: (F/G)MAC
V
V
U.S. Installation (2)
12 in. (305 mm)
9 in. (229 mm) for appliances u 10,000 Btuh (3 kW) and v
50,000 Btuh (14.7 kW), 12" (30 cm) for appliances u 50,000
Btuh (14.7 kW)
For clearances not specified in ANSI Z223.1/NFPA 54 or CAN/
CSA B149.1, clearances shall be in accordance with local instal­
lation codes and the requirements of the gas supplier and the
manufacture's installation instructions.
3 ft. (.9 m) within 15 feet (4.5 m) above the meter/regulator
assembly
3 ft. (.9 m) For clearances not specified in ANSI Z223.1/NFPA
54 or CAN/CSA B149.1, clearances shall be in accordance with
local installation codes and the requirements of the gas supplier
and the manufacture's installation instructions.
9 in. (23 cm) for appliances u 10,000 Btuh (3 kW) and v
50,000 Btuh (15 kW), 12" (30 cm) for appliances u 50,000
Btuh (14.7 kW)
3 ft. (.9 m) above if within 10' (3m) horizontally
For clearances not specified in ANSI Z223.1/NFPA 54 or CAN/
CSA B149.1, clearances shall be in accordance with local instal­
lation codes and the requirements of the gas supplier and the
manufacture's installation instructions.
12 in. (305 mm)
3 ft. (.9 m)
3 ft. (.9 m)
For clearances not specified in ANSI Z223.1/NFPA 54 or CAN/
CSA B149.1, clearances shall be in accordance with local instal­
lation codes and the requirements of the gas supplier and the
manufacture's installation instructions.
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