
ENGLISH-124
Self-checklist for installer
P
repara
tion
Item
Checklist
Check standard
Check result
Distribution board
Did you install the separate circuit breakers to cut the
power of each indoor unit?
Separate circuit breaker must be used
to install indoor unit power
Outdoor unit
power
Did you connect the outdoor unit power cable in
correct order of RST power?
Visual check
Did you connect the outdoor unit power cable with
solderless ring terminal by applying rated torque?
Use solderless ring terminal and follow
rated torque for connection
Outdoor unit
communication
Did you set the number of indoor units connected to
the outdoor unit?
Check S/W combination of the
outdoor unit PCB with the actual
diagram
Did you connect the communication cable (F1, F2)
between the indoor and outdoor units without
dividing it multiple times from one indoor unit?
Check the connection status of
communication cable
Outdoor unit
Is there enough space around the outdoor unit?
Check the standards in the installation
manual
Did you select the appropriate location for installation?
Surrounding temperature within
0~40 °C, and humidity within 80 %
Did you apply anti-vibration frame or pad according to
the standards stated in the installation manual?
Visual check
Did you install drain pipe for outdoor unit?
Visual check
Did you remove the stopper nut and washer used to fix
the compressor?
Visually check that the compressor is
fixed only with the nut washer
Water supply
system
Is there any leakage on the pipe?
Visual check
Check if the temperature and pressure sensor is
installed on the inlet/outlet of the outdoor unit.
Visual check. (4 in total)
Notify the water pipe installer if they
are not installed.
Check if the shut-off valve and flexible joint is installed
on the inlet/outlet of the outdoor unit.
Visual check. (4 in total)
Notify the water pipe installer if they
are not installed.
Check if foreign substances and welding slugs in the
pipe were cleaned.
Check whether or not flushing work
has been performed and check the
water quality.
Notify the water pipe installer if
flushing work has not been done.
Check if the strainer on the inlet water pipe were
cleaned.
Clean the strainer.
Notify the water pipe installer if the
strainer was not cleaned.
Check if the flow switch is installed on the outlet water
pipe and connected to the product. (Installed in a
vertical position on horizontal water pipe.)
Visual check.
Notify the water pipe installer if it is
not installed.
Check if the drain valve (for discharging water)is
installed.
Visual check.
Notify the water pipe installer if it is
not installed.
Is there countermeasure for maintaining the amount of
water flow between the outdoor units?
Visual check.
Notify the water pipe installer if they
are not installed.
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