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Refrigerant Piping Connection
Refrigerant
Piping
Connection
Note on Pipe Length
The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal
efficiency is tested on units with a pipe length of
6 5
(
5
), in North America, the standard pipe
length is
5
(
5
). A minimum pipe run of
9 9
3 m is required to
vibration & excessive
noise.
5
Refer to the table below for
specifications on the maximum length and drop height of piping.
Maximum Length and Drop Height of Refrigerant Piping per Unit Model
Model
Capacity (BTU/h)
Max. Length
Max. Drop Height
R410A Inverter Split Air
Conditioner
< 15,000
8
(
5
)
(
)
≥
15,000 and < 24,000
98 5
(
)
66
(
)
≥
24,000 and < 36,000
6
(
5
)
8
(
5
)
Connection Instructions – Refrigerant Piping
Step 1: 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.