Trane SYMBIO 700 Troubleshooting Manual page 2

Introduction
This publication covers both electromechanical
and Symbio™ controls. Due to the more
complex application and service opportunities,
greater emphasis is placed on units with
Symbio™ controls.
This publication does not cover all aspects of
service. It assumes the service person is an
experienced commercial service technician with
a strong background in electrical controls and
DC circuits. If you are not experienced and fully
qualified in HVAC service, do not attempt to use
this manual to service equipment.
Important Environmental Concerns
Scientific research has shown that certain man-
made chemicals can affect the earth's naturally
occurring stratospheric ozone layer when
released to the atmosphere. In particular,
several of the identified chemicals that may
affect the ozone layer are refrigerants that
contain Chlorine, Fluorine and Carbon (CFCs)
and those containing Hydrogen, Chlorine,
Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have
the same potential impact to the environment.
Trane advocates the responsible handling of all
refrigerants-including industry replacements for
CFCs and HCFCs such as saturated or
unsaturated HFCs and HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant
practices are important to the environment, our
customers, and the air conditioning industry. All
technicians who handle refrigerants must be
certified according to local rules. For the USA,
the Federal Clean Air Act (Section 608) sets
forth the requirements for handling, reclaiming,
recovering and recycling of certain refrigerants
and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional
requirements that must also be adhered to for
responsible management of refrigerants. Know
the applicable laws and follow them.
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