Bosch KBR28-3 - Page 40

40 | Installation
Greenstar FS
6 720 810 590 (2015/05)
Fig. 31 Vent and combustion air pipe position
Direct vent (sealed combustion):
[1] Forced Air Inlet
[2] Gravity Air Inlet
[3] Exhaust terminal
X
1
1 foot (305 mm)
X
2
See Note
1)
X
3
1 foot (305 mm) USA
3 feet (915mm) Canada
X
4
See Note
1)
X
5
7 feet (2135 mm)
2)
Y
A
At least 1 foot (305 mm) above grade or snow line
Y
B
Exhaust terminal must be at least:
3 feet (915 mm) above forced air inlet within 10 feet (3050 mm)
horizontally - USA
6 feet (915 mm) above forced air inlet - Canada
Fan assisted appliance (non-sealed combustion):
[1] Forced Air Inlet
[2] Gravity Air Inlet
[3] Exhaust terminal
X
1
1 foot (305 mm)
X
2
See Note
1)
X
3
1 foot (305 mm) USA
3 feet (915mm) Canada
X
4
See Note
1)
X
5
7 feet (2135 mm) above public walkway
Y
A
At least 1 foot (305 mm) above grade or snow line
Y
B
Exhaust terminal must be at least:
3 feet (915 mm) above forced air inlet within 10 feet (3050 mm)
horizontally - USA
6 feet (915 mm) above forced air inlet - Canada
NOTICE:
▶ Vent terminations must keep the following minimum
clearances from electric meters, gas meters,
regulators and relief equipment: 4 feet (1220 mm)
[Canada 1830 mm] horizontally and in no case
above and below, unless a horizontal distance of 4
feet (1220 mm) [Canada 1830 mm] is maintained.
NOTICE:
▶ For clearances not specified in ANSI Z223.1 / NFPA
54 or CSA B149.1
Clearance in accordance with local installation codes
and the requirements of the gas supplier including
the authority having jurisdiction.
X
1
X
2
X
3
X
4
X
5
X
1
X
1
X
2
X
3
X
3
1
2
Y
A
Y
B
Y
A
6 720 641 933-17.1O
3
3
3
3
1) For Clearances not specified in ANSI Z223.1 / NFPA 54 or CSA B149.1
Clearance in accordance with local installation codes and the requirements of
the gas supplier including the Authority having jurisdiction.
2) A vent shall not terminate directly above a sidewalk or paved driveway that is
located between 2 single family dwellings and serves both dwellings.
Clearance in accordance with local installation codes
and the requirements of the gas supplier including the
authority having jurisdiction.