Introduction; Important Safety Information - Friedrich CEW18B33A Service Manual

Important safety information

The information in this manual is intended for use by a qualified technician who is familiar with the safety procedures
required for installation and repair, and who is equipped with the proper tools and test instruments required to
service this product.
Installation or repairs made by unqualified persons can result in subjecting the unqualified person making such
repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock
which can be serious or even fatal.
Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered.
If you install or perform service on equipment, it is your responsibility to read and obey these warnings to guard
against any bodily injury or property damage which may result to you or others.
This service manual is designed to be used in conjunction with the installation and operation manuals provided
with each air conditioning system.
This service manual was written to assist the professional service technician to quickly and accurately diagnose
and repair malfunctions.
Installation procedures are not given in this manual. They are given in the Installation/Operation manual which
can be aquired on the Friedrich website.
IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of
a proper diagnosis and repair.
We have provided many important safety messages in this manual and on your appliance. Always
read and obey all safety messages.
3

INTRODUCTION

Your safety and the safety of others is very
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you
and others.
All safety messages will follow the safety alert symbol with the word
"WARNING"
or "CAUTION". These words mean:
Indicates a hazard which, if not avoided, can result in severe personal
WARNING
injury or death and damage to product or other property.
CAUTION Indicates a hazard which, if not avoided, can result in personal injury
and damage to product or other property.
All safety messages will tell you what the potential hazard is, tell
you how to reduce the chance of injury, and tell you what will happen
if the instructions are not followed.
NOTICE
Indicates property damage can occur if instructions are not followed.
important.
WARNING
Refrigeration system
under high pressure
Do not puncture, heat, expose to flame or
incinerate.
Only certified refrigeration technicians
should service this equipment.
R410A systems operate at higher pressures
than R22 equipment. Appropriate safe
service and handling practices must be used.
Only use gauge sets designed for use with
R410A.
Do not use standard R22 gauge sets.