Home HME030356N - Torque Requirements

39
Refrigerant Piping Connection
TORQUE REQUIREMENTS
OUTER DIAMETER

TIGHTENING TORQUE

FLARE


FLARE SHAPE
Ø 0.25" (Ø6.35) 18~20 (180~200kgf.cm) 0.33~0.34" (8.4~8.7)
R0.4~0.8
45°±2
90°±4
B
Ø 0.375" (Ø9.52) 32~39 (320~390kgf.cm) 0.52~0.53" (13.2~13.5)
Ø 0.5" (Ø12.7)
49~59 (490~590kgf.cm) 0.52~0.53" (13.2~13.5)
Ø 0.63" (Ø16) 57~71 (570~710kgf.cm) 0.76~0.78" (19.2~19.7)
DO NOT USE EXCESSIVE TORQUE
Excessive force can break the nut or damage the
refrigerant piping. You must not exceed torque
requirements shown in the table above.
Instructions for Connecting Piping to the Outdoor
Unit
1. Unscrew the cover from the packed valve on
the side of the outdoor unit.
2. Remove protective caps from the ends of the
valves.
3. 

4. Use a spanner to grip the body of the valve. Do
not grip the nut that seals the service valve.
Valve Cover
5. 

according to the correct torque values.
6. 

7. Repeat Steps 3 to 6 for the remaining pipe.
USE THE SPANNER TO GRIP THE MAIN BODY OF
THE VALVE

other parts of the valve.