Lochinvar Sunc 1.0, Installation & Operation Manual

Page: 19 / 68

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Requirements for installation in Canada
1. Installations must be made with a vent pipe system
certified to ULC-S636.
IPEX is an approved vent manufacturer in Canada
supplying vent material listed to ULC-S636.
2. The first three (3) feet of plastic vent pipe from the
appliance flue outlet must be readily accessible for visual
inspection.
3. The components of the certified vent system must not be
interchanged with other vent systems or unlisted
pipe/fittings. For concentric vent installations, the inner
vent tube must be replaced with field supplied certified
vent material to comply with this requirement.
2
General venting
(continued)
Installation & Operation Manual
Installing vent and air piping
Improper installation of PVC or CPVC
systems may result in injury or death.

CAUTION
Use only cleaners, primers, and solvents
that are approved for the materials which
are joined together.
NOTICE
1. Work from the boiler to vent or air termination. Do not
exceed the lengths given in this manual for the air or vent
piping.
2. Cut pipe to the required lengths and deburr the inside
and outside of the pipe ends.
3. Chamfer outside of each pipe end to ensure even cement
distribution when joining.
4. Clean all pipe ends and fittings using a clean dry rag.
(Moisture will retard curing and dirt or grease will
prevent adhesion.)
5. Dry fit vent or air piping to ensure proper fit up before
assembling any joint. The pipe should go a third to
two-thirds into the fitting to ensure proper sealing after
cement is applied.
6. Priming and Cementing:
a. Handle fittings and pipes carefully to prevent
contamination of surfaces.
b. Apply a liberal even coat of primer to the fitting
socket.
c. Apply a liberal even coat of primer to the pipe end to
approximately 1/2" beyond the socket depth.
d. Apply a second primer coat to the fitting socket.
e. While primer is still wet, apply an even coat of
approved cement to the pipe equal to the depth of
the fitting socket.
f. While primer is still wet, apply an even coat of
approved cement to the fitting socket.
g. Apply a second coat of cement to the pipe.
h. While the cement is still wet, insert the pipe into the
fitting, if possible twist the pipe a 1/4 turn as you insert
it. NOTE: If voids are present, sufficient cement was
not applied and joint could be defective.
i. Wipe excess cement from the joint removing ring or
beads as it will needlessly soften the pipe.
Table 2A PVC, Vent Pipe, and Fittings
All vent pipe materials and fittings must comply with the following:
Item Material
Standards for installation in:
United States Canada
Vent pipe
and fittings
PVC Plastic Pipe, Schedules 40, 80, & 120 ANSI/ASTM D1785
CPVC and PVC venting must be
ULC-S636 Certified. IPEX is an
approved manufacturer in Canada
supplying vent material listed to
ULC-S636.
PVC Plastic Pipe Fittings, Schedule 40 ANSI/ASTM D2466
PVC Plastic Pipe Fittings, Schedule 80 ANSI/ASTM D2467
PVC - DWV Pipe and Fittings ANSI/ASTM D2665
CPVC Plastic Pipe, Schedule 40 & 80 ANSI/ASTM F441
CPVC Plastic Pipe Fittings, Schedule 80 ANSI/ASTM F439
AL29-4C UL1738 ULC-S636