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.
If using combustion air piping, insert directly into the connector on the right. PPs pipe should be
inserted firmly into the connector until it cannot go further. The pipe must be secured with the built-in
clamp.
For PPs material exposed to outdoor conditions, follow the venting supplier’s recommendations on
UV protection.
Figure 11 Securing a pipe connection
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).
Warning
Do not mix 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.
3.6 Installation clearances
Warning
Exposed water piping and associated components (relief valves, circulators, etc.,)
should not be in contact with combustible materials. Check local codes for required
clearances and / or provide adequate insulation.
3.6 Installation clearances
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