IBC VFC 15-150 Installation And Operating Instructions Manual page 11

WARNING
Do not mix PPs venting
materials from different
Manufacturers.
These venting materials are
designed to be installed as
part of a complete system.
Failure to comply may result
in severe personal injury or
death.
DANGER
Failure to install PPs adaptor
with retainer clip could cause
release of harmful exhaust
gases into the heated space,
potentially leading to injury
or death.
Figure 1c: PP Vent Adaptor
Assembly
INSTALLATION
VFC 15-150, VFC 45-225 MODULATING GAS BOILERS
that sufficient temperature loss is allowed for in the CPVC section to fall below
the limit for PVC, taking into account the highest possible ambient temperature in
the area of vent travel (e.g. boiler room, attic and/or chase).
EXHAUST VENT MATERIAL – USA
IBC strongly recommends that only CPVC or PPs vent component systems
approved under UL1738 (Standard for Venting Systems for Gas Burning
Appliances, Categories II, III and IV), ULC-S636 Standard for Type BH Gas
Venting Systems, or stainless steel Type BH venting systems* are to be used,
but many local jurisdictions in the USA still allow the use of PVC (Sch. 40 ASTM
D1785 or D2665 and fittings) or CPVC (Sch. 40/ASTM F441 with Sch. 80
fittings).
Do not use ABS or any cellular core pipe for exhaust venting.
Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel
(polyphenolsulfone) in venting systems shall be prohibited.
The boiler offers 2" venting connections. Fittings are to be used to adapt to
the appropriate diameter – see Vent Travel below. Exhaust venting is to be
connected directly to the 2" NPT male threaded stainless steel fitting on the
bottom of the pressure vessel using:
•
For CPVC (and in the USA only, PVC) systems a 2" CPVC (USA: 2" PVC
allowed) threaded adaptor or 90° elbow adaptor. A condensate trap formed
using the supplied fittings shall be considered part of the exhaust and installed
near the base of the boiler (see Figure 2).
•
for PPs, use IBC's VFC PPs transition kit as appropriate for the chosen PPs
system:
CENTROTHERM INNOFLUE™
KIT# P-166A
2" Stainless Coupler (190-044)
2" Stainless Steel Adaptor (250-419)
Retainer Clip (180-050)
PPs Transition Fitting (180-037)
N/A
Condensate Trap and Hose (180-013)
Re-Usable Trap Strap (152-004)
Table 3: Polypropylene Venk Kits
Combustion air piping is connected at the base of the boiler using a standard
2" PVC (ABS) coupler or elbow (see Section 1.4.7). For PPs intake piping, use
standard PPs : 2"Sch 40 adaptor parts from the respective PPs manufacturers.
Venting shall be supported in accordance with applicable code.
*Manufacturers of stainless steel Type BH venting systems must submit
their approved transition fitting to IBC for evaluation and written approval.
M&G DURAVENT POLYPRO™
KIT# P-167A
2" Stainless Coupler (190-044)
2" Stainless Steel Adaptor (250-419)
Retainer Clip (180-051) x 2
PPs Transition Fitting (180-040)
PPs Condensate Trap Adaptor (180-060)
Condensate Trap and Hose (180-013)
Re-Usable Trap Strap (152-004)
®
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