9
Table 1
Table 2
6-1 IN CASE OF CONNECTING ONLY ONE INDOOR UNIT
6-2 WHEN CONNECTING MULTIPLE INDOOR UNITS
Pipe gauge (in.)
Tightening torque (ft-lbf)
Flare dimension
A (in.)
Flare shape (in.)
1/4’’
10.5 – 12.7
0.343 – 0.358
3/8’’
24.1 – 29.4
0.504 – 0.520
1/2’’
36.5 – 44.5
0.638 – 0.654
5/8’’
45.6 – 55.6
0.760 – 0.776
Pipe size (in.)
Further tightening angle (degree)
Recommended arm length of tool (in.)
1/4’’
60 to 90
Approx. 5 7/8’’
3/8’’
60 to 90
Approx. 7 7/8’’
1/2’’
30 to 60
Approx. 9 13/16’’
5/8’’
30 to 60
Approx. 11 13/16’’
