Gree Ultra Heat GMV-V72W/A-F, Service Manual, Page: 6 / 240

Ultra Heat GMV VRF Technical Service Manual PREFACE AND SAFTY PRECAUTIONS
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PREFACE
This manual specifies safe operation requirements for Ultra Heat GMV VRF units from perspectives
of engineering and installation, commissioning and maintenance, as well as basic principles and
implementation methods. Professional operators must abide by relevant national (local) safety
requirements and technical specifications set forth in this manual during operations; otherwise, the air
conditioning system may fail or be damaged, and personnel safety accident may also occur.
SAFTY PRECAUTIONS
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible injury or death.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of
the user.
CAUTION
This mark indicates procedures which, if improperly performed, might possibly result in personal harm to
the user, or damage to property.
NOTICE is used to address practices not related to personal injury.