Venting Instructions
Intake / Exhaust Guidelines
Refer to the specific instructions on your vent product for additional installation requirements.
•This water heater is a direct vent water heater and therefore is certified and listed with the vent system. You must use vent components that are certified and listed with the water heater model.
•Do not combine vent components from different manufacturers.
•The vent system must vent directly to the outside of the building and use outside air for combustion.
•Venting should be as direct as possible with a minimum number of pipe fittings.
•Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer’s instructions.
•Support horizontal vent runs every four feet and all vertical vent runs every six feet or in accordance with local codes.
•Vent diameter must not be reduced.
•Do not connect the venting system with an existing vent or chimney.
•Do not common vent with the vent pipe of any other water heater or appliance.
•Vent connections must be firmly pressed together so that the gaskets form an air tight seal.
•On the 305 and 505 models, the vent piece connected to the water heater must be secured with one
•Refer to the instructions of the vent system manufacturer for component assembly instructions.
•If the vent system is to be enclosed, it is suggested that the design of the enclosure shall permit inspection of the vent system. The design of such enclosure shall be deemed acceptable by the installer or the local inspector.
Condensate
Condensate formation can occur in high efficiency direct vent appliances. To prevent condensate damage follow these instructions.
•Vertical terminations must incorporate a condensate drain and trap as close as possible to the appliance.
•Slope any horizontal venting 1/4 inch per foot (19 mm / m), towards the heater if the condensate collector is used, or towards the exhaust terminal if the condensate collector is not used.
•Dispose of condensate per local codes.
•The condensate trap must contain a minimum of 3 inches (75 mm) of water.
•This water heater has an integrated condensate collector.
•Regions of cold climate will create more condensate in the vent system. The condensate collector should be used in cold climates.
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