IBC VX Series Installation & Operating Manual page 28

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, 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.
Coat 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.
Re: 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.
3.7.4.1 Air intake and exhaust vent length allowance
Warning
Follow all installation instructions supplied by the piping and fitting manufacturer.
Ensure that adequate separation is maintained between the air intake inlet and the exhaust vent
terminal. The pipe length and allowance for pipe fittings, terminations and flexible pipe used for
calculating total equivalent length are shown in the following table:
Intake/Exhaust
2-inch rigid pipe 100 ft (max.)
3-inch rigid pipe 240 ft (max.)
90° elbow Allow 8 feet for each 90° elbow
90° long sweep Allow 5 feet for each 90° elbow
elbow
45° elbow Allow 3 feet for each 45° elbow
PPs 87-90° Allow 8 feet for each 87-90° elbow
elbow
VX 110
50 ft (max.)
170 ft (max.)
24
VX 150
Not permitted
150 ft (max.)
Section: Installation
VX 199