TIGHTENING REFRIGERANT PIPING CONNECTIONS
Caution:
Remove the protection caps on the pipes and connect the assembly piping to each connector. First, tighten the nuts manually and then with a wrench by applying the tightening torque shown below.
Flare nut size and tightening torque
Applicable size | Class 2 (for R410A) | |
Diamètre (mm) x Tightening torque (Nm) | ||
| ||
1/4 “ | 17 x 14 to 18 |
3/8 “
22 x 34 to 42
1/2 “
26 x 49 to 61
5/8 “
29 x 68 to 82
3/4 “
36 x 100 to 120
