Assembly Of Centrotherm Innoflue Vent Systems - Burnham K2WT Residential Installation, Operating And Service Instructions

VII. Venting
H. Assembly of Centrotherm InnoFlue Vent Systems
1. This boiler has been listed for use with the Centrotherm InnoFlue single wall Polypropylene vent system to be
provided by the installer.
WARNING
included by the original Polypropylene venting component manufacturers, Centrotherm. Failure to do so
could cause products of combustion to enter the building, resulting in severe property damage, personal
injury or death. Where a conflict arises between Centrotherm instructions and these instructions, the
more restrictive instructions shall govern.
• Do not mix vent components or joining methods for listed manufacturers.
•
Examine all components for possible shipping damage prior to installation.
•
All condensate that forms in the vent must be able to drain back to the boiler.
2. Assemble the vent system, starting at the boiler:
a. The vent adaptor has three different inside diameters. The middle inside diameter accepts 3" nominal
InnoFlue (Figure 7.27). A locking band clamp in the adaptor prevents the vent pipe from coming out of the
adaptor once it is installed and tightened. Lubricate the gaskets in the vent adaptor with water and insert the
first piece of 3" InnoFlue into the adaptor until it bottoms out. Tighten locking band clamp to secure vent pipe.
b. If 2" InnoFlue is to be used for the vent system, reduce the first piece of 3" InnoFlue installed in Step (a) to 2"
using Centrotherm # ISRD0302. Otherwise assemble the next piece of 3" InnoFlue.
c. For each joint, verify that the gasket is evenly seated in the bell (female) end of the pipe. Lubricate this gasket
with Centrocerin # IACE50. Slide a connector ring over the male end of the pipe to be joined as shown in
Figure 7.44. Push the male end of the next section of pipe into the bell until it bottoms out, then back out 1/4"
to provide room for thermal expansion. Push hook on connecting ring over the bell end of the first section of
pipe as shown in Figure 7.44.
d. Assemble the rest of the vent system per the manufacturer's installation instructions, being sure to pitch
horizontal sections back towards the boiler 5/8"/ft.
e. Support each horizontal pipe section with a minimum of one wall strap each and at intervals not exceeding
39in.
107672-03 - 5/18
Asphyxiation Hazard. Follow these instructions and the installation instructions
Figure 7.44: InnoFlue Connector Ring Installation
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