Refrigerant Piping at the Indoor Units
Reference the Indoor Unit Installation Guide
In. (mm) Tightening Torque
1/4 (6.35)
11.25-14.75 (ft-lbf) / 15 ~ 20 N•m
3/8 (9.52)
22.25-29.50 (ft-lbf) / 30 ~ 40 N•m
1/2 (12.7)
33.25-40.50 (ft-lbf) / 45 ~ 55 N•m
5/8 (15.9)
44.25-47.75 (ft-lbf) / 60 ~ 65 N•m
Refrigerant Piping at the Outdoor Unit
Tighten the flare nut of the connection pipe at the outdoor unit valve connector. Follow the flare nut
guidelines in this manual.
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