PEERLESS PUREFIRE PFC-1000, Installation, Operation & Maintenance Manual

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4. The Peerless
®
P
ure
F
ire
®
boiler, like all high efficiency,
gas-fired appliances, is likely to produce a vapor plume
due to condensation. Surfaces near the vent termination
will likely become coated with condensation.
5. The maximum combined vent and air inlet pipe length
for PFC-850, PFC-1000 and PFC-1500 boilers is
200 equivalent feet (61 meters) for horizontal venting
and 500 equivalent feet (152 meters) for vertical
venting. Be sure that the boiler is located such that the
maximum vent length is not exceeded.
6. Air Intake Pipe Location – Sidewall Venting:
a. Provide a minimum of 1 foot (30 cm) clearance
from the bottom of the air intake pipe above
expected snow accumulation level. Snow removal
may be necessary to maintain clearances.
b. Do not locate air intake pipe in a parking area
where machinery may damage the pipe.
c. If the vent pipe and air inlet pipe terminations
penetrate the wall at the same level the minimum
distance between them is 8” center-to-center.
d. For multiple boiler installations, the minimum
horizontal distance between the inlet of one
boiler to the exhaust of an adjacent boiler is 8”
center-to-center. In addition, the minimum vertical
distance between the exhaust and air inlet is 6”.
See Figure 3.1 for an illustration.
e. The exhaust outlet of the vent pipe should not be
angled any more than 5º from horizontal.
f. Precautions should be taken to prevent
recirculation of flue gases to the air inlet pipe of
the boiler or other adjacent appliances.
7. Sidewall Venting Configuration:
a. See Figure 3.2 for an illustration of clearances for
location of exit terminals of direct-vent venting
systems.
• This boiler vent system shall terminate at
least 3 feet (0.9 m) above any forced air inlet
located within 10 ft (3 m). Note: This does not
apply to the combustion air intake of a direct-
vent appliance.
• Provide a minimum of 4 feet (1.22 m)
clearance distance from any door, operable
window, or gravity air intake into any building.
• Provide a minimum of 6 feet (1.83 m)
clearance to adjacent facing walls.
• Provide a minimum of 1 foot (30 cm)
clearance from the bottom of the exit terminal
above the expected snow accumulation level.
Snow removal may be required to maintain
clearance.
• Provide a minimum of 4 feet (1.22 m)
horizontal clearance from electrical meters, gas
meters, gas regulators, and relief equipment.
In no case shall the exit terminal be above or
below the aforementioned equipment unless
the 4 foot horizontal distance is maintained.
VENTING & AIR INLET PIPING
Covering non-metallic exhaust venting material is
prohibited and may result in severe personal injury,
death, or major property damage.
WARNING
Figure 3.1: Vent Pipe Spacing for Multiple
P
ure
F
ire
®
Boilers
Figure 3.2: Exit Terminal Location for Mechanical Draft and Direct-Vent Venting Systems
9
If the maximum equivalent vent length is exceeded,
the maximum burner input rate may be reduced.
NOTICE