Daikin LREN8A7Y1B, Installation And Operation Manual

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3 User safety instructions
Installation and operation manual
9
LREN8~12A7 + LRNUN5A7
CO
₂ ZEAS outdoor unit and capacity up unit
4P704141-1B – 2022.12
Maintenance and service (see "6 Maintenance and
service" [
4
10])
DANGER: RISK OF
ELECTROCUTION
To clean showcases or blower coils,
stop operation and turn OFF all power
supplies.
Possible consequence:
electrical shock and injury.
WARNING:
12 MPa
System contains
refrigerant under very high
pressure.
The system MUST be serviced by
qualified persons ONLY.
WARNING
NEVER replace a fuse with a fuse of a
wrong ampere ratings or other wires
when a fuse blows out. Use of wire or
copper wire may cause the unit to
break down or cause a fire.
WARNING
Be careful with ladders when working
in high places.
WARNING
Do NOT let the indoor unit get wet.
Possible consequence: Electrical
shock or fire.
CAUTION
Do NOT insert fingers, rods or other
objects into the air inlet or outlet. When
the fan is rotating at high speed, it will
cause injury.
CAUTION: Pay attention to the fan!
It is dangerous to inspect the unit while
the fan is running.
Make sure to turn OFF the main switch
before executing any maintenance
task.
CAUTION
After a long use, check the unit stand
and fitting for damage. If damaged, the
unit may fall and result in injury.
CAUTION
Before accessing terminal devices,
make sure to interrupt all power supply.
About the refrigerant (see "6.1 About the refrigerant" [
4
10])
WARNING
▪ Do NOT pierce or burn refrigerant
cycle parts.
▪ Be aware that the refrigerant inside
the system is odourless.
WARNING
The R744 refrigerant (CO
2
) inside the
unit is odourless, non-flammable and
normally does NOT leak.
If the unit is installed indoors, ALWAYS
install a CO
2
detector according to the
specifications of standard EN378.
If the refrigerant leaks in high
concentrations in the room, it may have
negative effects on its occupants such
as asphyxiation and carbon dioxide
poisoning. Ventilate the room and
contact the dealer where you
purchased the unit.
Do NOT use the unit until a service
person confirms that the part from
which the refrigerant leaked has been
repaired.
Recommended maintenance and inspection (see
"6.2 Recommended maintenance and inspection" [
4
11])
WARNING
Do NOT modify, disassemble, remove,
reinstall or repair the unit yourself as
incorrect dismantling or installation
may cause an electrical shock or fire.
Contact your dealer.
Troubleshooting (see "7 Troubleshooting" [
4
11])
WARNING
Stop operation and shut OFF the
power if anything unusual occurs
(burning smells etc.).
Leaving the unit running under such
circumstances may cause breakage,
electrical shock or fire. Contact your
dealer.