Ensure all venting components are clear of burrs/debris prior to assembly. Clear plastic debris
left in the combustion air piping to avoid intake into the fan.
Secure joints using appropriate solvent cement to bond the respective pipe material (Canada:
CPVC cement approved under ULC-S636, in accordance with its manufacturer instructions;
USA: PVC (ASTM D2564), or PVC/ABS (D2235) - Use transition glue anywhere that PVC and
CPVC are joined. Follow the cement manufacturer’s instructions closely when joining various
components. For PPs, connections shall be secured using approved retainer clips supplied by
the respective PPs manufacturer.
Check that vent connections are liquid and pressure tight. Prior to firing the boiler, and before
any of the venting run is concealed by the building construction, the installer must test the
exhaust joints under fan pressure with the vent blocked, using a soap and water solution .the
installer must fill the condensate trap prior to testing.
To drive the fan into manual high speed operation for vent leak testing, from the touchscreen controller
Main Menu go to Diagnostics>Test Operation>Set Vent Test to On. Paint all joints with an approved
leak test solution just as you would joints in a gas line, and make sure there are no leaks. We suggest
attaching a tag on the vent line near the condensate drain tee with the type of test, the date and the
installer’s name.
3.5.5 Venting passage through ceiling and floor
Confirm material meets local codes including fire stopping requirements.
Check the local jurisdiction on the minimum initial length of pipe that should be exposed or
accessible for inspection.
Follow the local codes for pipe clearances - no IBC requirements.
Ensure that piping is liquid and pressure tight.
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