Element
Section 7: Venting
L-OMM-0003_A
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7. Clean and deburr all solid PVC or CPVC pipe ends, then trial assemble the entire vent system
vent before joining with cement. Mark the pipe and fittings to identify their locations, then
disassemble. Reassemble the vent system using fresh PVC cement to connect PVC pipe and
fresh CPVC cement to connect CPVC pipe. If both solid PVC and solid CPVC pipe are used in
the same vent system, all joints between the two types of pipe must be made with fresh
cement suitable for both materials. Follow the cement manufacturer’s instructions for making
sound air and water tight joints.
8. Vent support: For PVC or CPVC, the vent system must be supported at intervals no greater
than four feet, to prevent sagging, distortion and stress on pipe fittings. Vertical pipe must also
be supported to avoid stress on all cemented pipe fittings and to prevent putting excessive
weight on the appliance vent connection. For listed stainless steel or polypropylene vent
system, follow the vent system manufacturer’s instructions.
9. Testing for leaks: Once the vent system is installed, check that all joints are air- and water-
tight. After the vent is assembled, close the end of the vent with a taped plastic bag or other
temporary seal. With the gas supply turned off, energize the Lync Water Heater combustion
blower to apply air pressure to the vent system. Spray each joint and vent connection with
commercially available leak detection liquid to confirm no air is escaping from any point.
Repair any leaks and retest. After testing is complete, de-energize the combustion blower,
wipe the leak detection liquid clean and REMOVE the temporary vent closure.
10. The vent pipe must be sealed at the point where it passes through a wall or roof, to prevent
rain, insects or flue products from entering the living space or interior of the building.
11. Provide suitable termination to prevent wind, water, debris and animals from obstructing or
entering the vent. The vent for this appliance must not terminate:
A. Over public walkways;
B. Near soffit vents or crawl space vents or other areas where condensate or vapor could
create a nuisance or hazard or cause property damage; or
C. Where condensate vapor could cause damage or could be detrimental to the operation
of regulators, relief valves, or other equipment.
12. Do not use a barometric damper with the venting system. The Element uses Category IV
positive pressure vent systems and will not operate safely with a barometric damper.
W A R N I N G :
Use only solid PVC or CPVC pipe or use Polypropylene or stainless-steel venting (single or
double wall) listed by a nationally recognized testing laboratory for Category IV positive pressure
gas appliance venting. Use of ABS, PVC or CPVC pipe with cell/foam type construction or use
of venting materials other than specified in these instructions can result in failure of the venting
system and/or exposure to carbon monoxide or other toxic fumes, which can result in property
damage, personal injury or death.
DO NOT vent water heater into an existing or traditional gas vent or chimney. Do not combine
vent with any other appliance. Do not use barometric damper in vent. Such venting could result
in failure of the venting system and/or exposure to carbon monoxide which can result in property
damage, personal injury or death.
