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

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D. EXHAUST VENT/AIR INTAKE PIPE SIZING
1. A list of approved venting materials for the exhaust is
provided in Table 3.1 and a list of approved materials
for air inlet is provided in Table 3.2.
2. The total combined length of exhaust vent and air
intake piping is 200 equivalent feet (60 m).
a. P
ure
F
ire
®
boilers may use air from the room
in which they are installed as long as there is
adequate combustion and ventilation air provided.
See Section 1.D: Combustion and Ventilation Air
of this manual for the minimum requirements. In
this case, a maximum of 200 equivalent feet of
exhaust vent pipe can be used.
b. The equivalent length of elbows, tees and other
fittings are listed in Table 3.3.
c. The total equivalent length can be calculated as
shown in Table 3.4.
E. EXHAUST VENT/AIR INTAKEV
INSTALLATION
1. Figure 3.10 shows the exhaust connection on the rear
of the boiler on the vertical centerline. The exhaust
connection is a FasNSeal stainless steel boot tee with
a drain which is included with each PFC-850, PFC-
1000 and PFC-1500 boiler. The tee provided is be
connected directly to the rear of the boiler as shown
in Figure 3.10.
2. The Air Intake connection for the PFC-850 &
PFC-1000 is a 6” galvanized collar to the right and
below the exhaust connection. The PFC-1500 has a
7” connection on the air box within the front blower/
gas valve area. This can be connected to any of the
approved air intake piping materials.
3. The Air Intake connection should be secured with (3)
screws and sealed.
4. Remove all burrs and debris from the joints and fittings.
5. Care should be taken to prevent dirt or debris
from entering the air intake connection. A screen is
provided inside the Air Intake fitting to prevent large
objects from entering the combustion system.
6. Horizontal lengths of exhaust vent must be installed with
a slope of not less than 1/4” per foot (21mm per meter)
toward the boiler to allow condensate to drain from the
vent pipe. If the vent pipe must be piped around an
obstacle that causes a low point in the piping, a drain
with an appropriate trap must be installed.
Les sections horizontales de l’évacuation doivent
être installées avec une pente d’au moins 1/4 po au
pied (21 mm par mètre) en direction de la chaudière
afin que le condensat puisse s’évacuer du tuyau
d’évacuation. Si le tuyau d’évacuation est acheminé
autour d’un obstacle qui crée un point bas dans la
tuyauterie, il est nécessaire alors d’installer un drain
équipé d’une vidange adéquate.
VENTING & AIR INLET PIPING
Figure 3.10: Exhaust Vent Connection
This appliance uses a positive pressure venting
system. All joints must be sealed completely to
prevent leakage of flue products into living spaces.
Failure to do this may result in severe personal
injury, death or major property damage.
WARNING
Exhaust Air Inlet Total
Straight Length of Pipe 100’ 50’ 150’
90° Elbows, SR 2 x 5’= 10’ 1 x 5’ = 5’ 15’
45° Elbows, SR 2 x 3’ = 6’ 6’
Air Intake Tee 0’ 0’
Outlet Coupling 0’ 0’
Total 171’
Table 3.4: Sample Equivalent Length Calculation
Table 3.3: Equivalent Length of Fittings
Fitting Description Equivalent Length
Elbow, 90° Short Radiusz 5 feet (1.5 m)
Elbow, 90° Long Radius 4 feet (1.2 m)
Elbow, 45° Short Radius 3 feet (0.9 m)
Coupling 0 feet (0 m)
Air Intake Tee 0 feet (0 m)
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