Refrigerant Piping - AUX ALCA-HA Series Installation And Owner's Manual

5. REFRIGERANT PIPING

5.1. CONNECTING THE PIPING
The method for connecting the piping is the same for both units, indoor and outdoor.
Connect the pipes to the unit. Tighten until the connection becomes firm and secure.
Follow the directions shown in the figure.
Focusing on the center of the pipe, tighten the screw firmly.
Tighten the conical nuts as shown in the figure by applying the corresponding torque
according to the diameter of the pipe.
PIPE DIAMETER
6.35mm (1/4")
9.52mm (3/8")
12.7mm (1/2")
15.88mm (5/8")
19.05mm (3/4")
TORQUE
15-19 N m
35-40 N m
50-60 N m
62-76 N m
98-120 N m
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