Bosch ZBR16-3A Installation And Service Instructions Manual page 46

46 | Installation
NOTICE:
B DO NOT use cellular core pipe.
B DO NOT use PVC when using anti-freeze in
the primary circuit of the boiler. Use CPVC
or stainless steel only!
3
X
3
Fig. 26 Vent and combustion air pipe position
Direct vent (sealed combustion):
1 Forced Air Inlet
2 Gravity Air Inlet
3 Exhaust terminal
X 1 foot (305 mm)
1
X 3 feet (915 mm)
2
X 1 foot (305 mm)
3
X 5 feet (1525 mm)
4
X 7 feet (2135 mm) above public walkway
5
Y At least 1 feet (305 mm) above grade and snow line
A
Y Exhaust terminal must be at least 3 feet (915 mm) above
B
forced air inlet within 10 feet (3050 mm)
6 720 643 068 (2011/06)
3
X
3
3
NOTICE:
B Vent terminations must keep the following
minimum clearances from electric meters,
gas meters, regulators and relief
equipment: 4 feet (1220 mm) [Canada
6 feet (1830 mm)] horizontally and in no
case above and below, unless a horizontal
distance of 4 feet (1220 mm) [Canada
6 feet (1830 mm)] is maintained.
X
2
X
2
1
Fan assisted appliance (non-sealed combustion):
1 Forced Air Inlet
2 Gravity Air Inlet
3 Exhaust terminal
X 1 foot (305 mm)
1
X 3 feet (915 mm)
2
X 4 feet (1220 mm)
3
X 5 feet (1525 mm)
4
X 7 feet (2135 mm) above public walkway
5
Y At least 1 foot (305 mm) above grade and snow line
A
Y Exhaust terminal must be at least 3 feet (915 mm) above
B
forced air inlet within 10 feet (3050 mm)
3
2
6 720 641 933-17.1O
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