User's Manual

2
Bef
ore You Begin
This product is intended to be installed by
trained service professionals.
This manual explains the procedures for
installing the ecobee EMS Si. Please read it
carefully before beginning the installation.
The EMS Si is designed to be mounted on the
wall in a convenient location.
Caution: Disconnect electric power to the HVAC
system before installing this product. Failure
to do so could result in electric shock and/or
equipment damage.
All wiring must conform to your local electrical
code.
Mercury Notice: This product does not contain
mercury. If you are replacing a product that
does contain mercury, contact your local
waste-management authority for disposal
instructions. Do not discard the old product in
the regular trash.
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