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1-6. Tubing Size
Table 3 : Main Tubing Size (LA)
■
Outdoor unit horsepower
Gas tube
Liquid tube
* The refrigerant tubing should be used with R410A refrigerant.
Table 4 : Main Tubing Size After Distribution (LB, LC...)
■
Total capacity after distribution
Tubing size
Note: In case the total capacity of indoor units connected after distribution exceeds the capacity of the outdoor unit, select the main
tubing size for the capacity of the outdoor unit.
Table 5 : Indoor Unit Tubing Connection Size
■
Indoor unit type
22
Gas tube (mm)
Liquid tube (mm)
4 HP
5 HP
ø15.88
Flare connection
ø9.52
Flare connection
7.1
Below kW
(2.5 HP)
Over kW
–
Gas tube
ø12.7
Liquid tube
ø9.52
28
36
45
ø12.7
ø6.35
Unit: mm
6 HP
Unit: mm
–
7.1
(2.5 HP)
ø15.88
ø9.52
71
56
60
73
11
Liquid tube
106
90
140
112
ø15.88
ø9.52
Gas tube
160
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