State 520 - Manual (Page 13)

Installation
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Page
1. Connect the PVC adaptor* directly on the exhaust vent collar of the water heater.
2. Connect a 4” PVC coupler (or 4x3” PVC reducer) to the PVC adaptor.
3. From the coupler (or reducer), continue on the rest of the vent run with 4” PVC pipe (or 3” PVC
pipe.)
(For Exhaust)
Horizontal Installation Diagram
(With elbow terminations)
Horizontal Installation Diagram
(With 3” PVC Concentric Termination)
Keep a 1” clearance between wall
and the intake section of the
concentric termination. See the
diagram to the left.
‐PVC Venting Illustrations‐
How to install PVC venting with the Direct Vent Indoor models
Connection between exhaust vent collar and PVC piping
See the next page for instructions.
Wall
Connection between exhaust vent collar and PVC piping
See the next page for instructions.
Wall
1” minimum
clearance
Concentric Termination
Insert the bird screen included with
the termination
Vertical Installation Diagram
Roof
Roof Flashing
Fire stop