Connecting The Vent And Air Intake Pipes - IBC VX Series Installation & Operating Manual

3.5 Connecting the vent and air intake pipes

The appliance offers 3" connections that accept standard 3" PVC/CPVC and PPs pipe. Use available
pipe-reducer fittings (not bushings) to adapt to smaller diameter pipe. Insert pipe directly into the 3"
female fitting, and secure with the built-in clamp (see image below). For PPs, no transition adapter is
required. The vent connection has a second gasket approximately 2.5" beyond the first 3" PVC/CPVC
sized gasket that will seal to standard 80 mm PPs pipe. Care should be taken to ensure that PPs
pipe is installed so that it extends past this second gasket.
For PPs material exposed to outdoor conditions, follow the venting supplier's recommendations on
UV protection.
Figure 14 Securing a pipe connection
Combustion air piping - if used - is inserted directly into the 3" connector on the right side. PPs pipe
should be inserted firmly into the connector until it cannot go further. The pipe must be secured with
the built-in clamp.
Warning
Ensure that you lubricate the gasket with silicone grease before inserting the venting
material. Fully insert the approved venting material into the boiler's exhaust outlet, and
tighten clamp to ensure the venting connection is locked in place (as shown above).
Venting must be supported in accordance with the applicable code and instructions supplied by the
manufacturers.
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.
3.5 Connecting the vent and air intake pipes
19