Embassy Peak-40, Installation And Operating Instructions Manual

Page: 15 / 68

15
Figure 3.12: Venting Through a Chimney Using
Sidewall Outside Air
Figure 3.13: Venting with a Chimney Using Inside Air
VENTING & AIR INLET PIPING
g. Figure 3.13 shows an option for routing the exhaust
through an unused chimney with the combustion air
supplied from inside the building. Be sure to note
the requirements for combustion air as listed under
Section 1.D. “Combustion and Ventilation Air”. These
requirements are in accordance with the National Fuel
Gas Code.
D. EXHAUST VENT/AIR INTAKE PIPE SIZING
1. Peak boilers can be installed with 2" or 3" Exhaust Vent/Air
Intake piping with the vent length restrictions shown in table
3.2 below. 2" applications require a 3" initial connection with
a reduction to 2" venting.
Table 3.2: Maximum Allowable Vent Length for
Peak Boiler Installations
2. Polypropylene vent systems can be installed using the
vent adapters provided with the boiler. The adapters
are compatible with 3" PVC or CPVC, 3" or 80mm
polypropylene and 3" AL-29-4C grade stainless steel.
3. Combined systems using separate polypropylene exhaust
& air inlet pipes which transitions to concentric can also be
installed. Contact you Centrotherm, Duravent or NovaFlex
representative for more information.
4. All 2" SCH40 PVC applications require the first
10 equivalent feet to be of CPVC or Polypropylene
material.
a. The equivalent length of elbows, tees and other fittings
are listed in Table 3.3.
Table 3.3: Equivalent Length of Fittings
Maximum Allowable Vent Length (Ft)
2" (60mm) Diameter
Feet (Meters)
3" (60mm) Diameter
Feet (Meters)
Peak-40 60 (18.28) 100 (30.48)
Equivalent Length (Feet)
Vent Size
2" Vent 3" Vent
Elbow, 90° 7 feet 5 feet
Elbow, 45° 4 feet 3 feet
Coupling 0 feet 0 feet
Air Intake Tee 0 feet 0 feet
Concentric Vent Kit 3 feet 3 feet
NOTICE
Exhaust Vent/Air Intake length in excess of maximum
listed equivalent feet may result in reduced input due
to excessive pressure drop.