Refrigerant Piping Connection
7
WARNING
• All field piping must be completed by a licensed
technician and must comply with the local and
national regulations.
• When the air conditioner is installed in a small
room, measures must be taken to prevent the
refrigerant concentration in the room from
exceeding the safety limit in the event of
refrigerant leakage. If the refrigerant leaks and
its concentration exceeds its proper limit, hazards
due to lack of oxygen may result.
• When installing the refrigeration system, ensure
that air, dust, moisture or foreign substances do
not enter the refrigerant circuit. Contamination
in the system may cause poor operating capacity,
high pressure in the refrigeration cycle, explosion
or injury.
• Ventilate the area immediately if there is
refrigerant leakage during the installation. Leaked
refrigerant gas is both toxic and flammable.
Ensure there is no refrigerant leakage after
completing the installation work.
Notes On Pipe Length and Elevation
Ensure that the length of the refrigerant pipe, the number
of bends, and the drop height between the indoor and
outdoor units meets the requirements shown in Table 7.1:
Table 7.1: The Maximum Length And Drop Height
Maximum drop
height
Refrigerant Piping
Connection
Based on Models. (Unit: meters)
09 25
CAUTION
An angle of more than 10° may cause malfunction.
• DO NOT install the connecting pipe until both
indoor and outdoor units have been installed.
• Insulate both the gas and liquid piping to prevent
water leakage.
Refrigerant Piping Connection Instructions
Step1: Cut pipes
When preparing refrigerant pipes, take extra care
to cut and flare them properly. This will ensure
efficient operation and minimize the need for future
maintenance.
1. Measure the distance between the indoor and
outdoor units.
2. Using a pipe cutter, cut the pipe a little longer than
the measured distance.
Model Length of
piping
Page 17
12 25 10
18 30 20
24 25
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