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ENGLISH
Installation Work
Installation should be made securely on a
place that can fully support the mass of the
refrigeration unit.
Insufficient foundation may cause
falling or dropping, and lead
to refrigerant gas leak, injury,
electrical shock, or fire.
● Refrigeration unit should be
secured on a concrete base
with a mass approximately
3 times that of the unit and
fastened with anchor bolts.
Perform airtight test before charging
refrigerant.
Refrigerant gas leak may cause
insufficient oxygen and lead to a
death accident.
● Carry out airtight test and
confirm no leak of refrigerant.
Install the safety cover.
Touching the refrigeration unit
by hand of the people other than
the designated operators may
cause injury.
● Install a safety cover or
protective fence.
Piping, equipment components and tools
should be exclusively for R744 (CO
2
refrigerant).
Use of components for HFC
refrigerant may cause serious
accidents such as equipment
failure and rupture of the
refrigerant cycle.
Electrical Work
Always use a dedicated circuit and install a
ground fault protector.
Incorrect electrical work may
lead to current leak and fire or
electrical shock.
● Wiring work should conform to
the installation instructions.
Grounding Work
Lack of grounding work may
lead to electrical shock caused
by current leak.
● Securely carry out grounding
work by qualified technicians.
Electrical wiring should use the specified
cable and to be properly secured.
When the specified cable is
not used, or connection or
securing is incomplete, electrical
resistance becomes larger and
may cause abnormal heating or
fire.
● Use the specified cable and
properly secure it on an
appropriate location.
Securely place the cover on the electrical
box and enclosure panel.
Incomplete attachment may
lead to penetration of water and
living creatures, thereby causing
current leak and fire/electrical
shock.
● Confirm that covers are
securely installed.
Cautions for Safety
(Be sure to comply with the following)
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