Hose/Line HVAC

Tightening torque for 0-ring fittings
0.31 in. tube 14 Nm (10 ft lb)
0.50 in. tube 23 Nm (17 ft lb)
0.62 in. tube 32 Nm (24 ft lb)

Bolted type
For compressor 25 Nm (18 ft lb)
For condenser 18 Nm (13 ft lb)
For receiver 5 Nm (4 ft lb)