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1-11. Installation Instructions
■ TUBING LENGTH
(A) Single type
● Keep refrigerant tubing between the indoor and
outdoor units as short as possible.
● The length of the refrigerant tubes between the
indoor and outdoor units is limited by the elevation
difference between the 2 units. During tubing work,
try to make both the tubing length (L) and the dif-
ference in elevation (H1) as short as possible.
Refer to Table 1-5.
Table 1-1
Indoor unit type 71 types 100, 125 types
Maximum allowable tubing length 50 m 50 m
Charge-less tubing length (actual length) 30 m 30 m
Additional refrigerant charge per 1 m 40g
Minimum tubing length 3 m 5 m