Ø6.35 mm 14 to 18 (1.4 to 1.8 kgf.m)
Ø9.52 mm 33 to 42 (3.3 to 4.2 kgf.m)
Ø12.7 mm 50 to 62 (5.0 to 6.2 kgf.m)
The pressure of the R-410A becomes higher than with the R-22. (Approximately 1.6 times) For this reason, using a wrench, tighten the connection part of the flange tubes that connect the internal and external units firmly to the specified torque. Wrong connections can cause not only a gas leak, but also problems with the refrigeration cycle.