SUMERAIN S3123XD-B, Installation Manual, Page: 7 / 25

1. BEFORE PROCEEDING
WARNING: Read all the instructions completely before proceeding.SUMERAIN recommends calling a professional
if you are uncertain about installing this product!, this product should be installed in accordance with all
local and state plumbing and building codes.
2. SHUT OFF WATER SUPPLY
Locate water supply inlets and shut off the water supply valves. These are usually found near the water meter. if you are
replacing an existing unit, remove the old unit and clean the mounting surface thoroughly.
3. CHECKING THE CONTENTS OF THE BOX
Upon opening the box, check to ensure that all the following items are included.