Installation / Operation Instruction Manual

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Step 1: Thoroughly read and understand the venting section of the Installation and Operating Instruction Manual that
was supplied with the water heater before determining the location of the water heater and the vent terminals. Locate
the water heater for the shortest practical vent length to the outside. Measure the total venting distance required to
reach the outside wall or roof. Determine the diameter of the venting components to use for the length of vent pipe
(and combustion air supply for direct vent models) required by referring to the venting tables in the instruction manual
for the maximum vent length for each diameter pipe size. Obtain all the necessary venting system components for the
installation.
Step 2: Before installation, inspect each vent component for damage making sure the gaskets for each component are
fully intact and in undamaged condition. Do not attempt to install or repair damaged components. If a gasket is
damaged, these are available from the supplier of DuraVent components. Do not use gaskets from another
manufacturer and do not try to repair the gasket.
Step 3: A DuraVent PVC to Polypropylene adapter (referred by DuraVent as Appliance Adapters, 2PPS-AD, 3PPS-AD, or
4PPS-AD) must be used to connect into a PVC coupling or tee (Commercial and Residential Power Direct Vent air intake
connections), condensate elbow (High Efficiency Commercial Condensing models) or the exhaust outlet adapter for
Commercial Power Vent and Residential Power Vent models. To make the insertion of the gasketed fittings into the
coupling easier, rotate the joints slightly and use water to lubricate the gaskets. DO NOT use any other kind of lubricant.
Wet the gasket surface and inside of the coupling using your finger or wet paper towel and insert the male end of the
adapter with the exterior gasket into the coupling, condensate elbow or exhaust outlet adapter connection. If a larger
vent diameter size is to be used, use the appropriately sized reducer coupling first on the water heater intake or exhaust
vent connection as detailed in the installation manual supplied with the water heater. See the following photos.
WARNING
Use only water for lubricating the gaskets and pipe ends to allow easy insertion. DO NOT use any other kind of
lubricant, since deterioration of the gasket may result, which may allow dangerous flue gases to leak into the room.
If the vent pipe needs to be disassembled after the gasket has dried, wet the joint thoroughly to loosen the
connection.
High Efficiency Condensing Commercial Models: Use the appropriate primer and cement (refer to venting section of
instruction manual with water heater) for cementing a PVC coupling (not supplied with water heater) to the end of the
PVC air intake pipe connection. Using your finger, wet with water the male gasketed end of the DuraVent PVC to
PolyPro adapter and fully insert into the air intake coupling. Loosen the DuraVent adapter connector clamp (PPS-PAC)
and install over the PVC coupling. See following photos.