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Page 29
TORQUE REQUIREMENTS
Outer Diameter of Pipe
(mm)
Tightening Torque
(Nm)
Flare dimension (B)
(mm) Flare shape
Ø 6,35 (Ø 0,25") 18~20 (180~200 kgf·cm) 8,4~8,7 (0,33~0,34")
Ø 9,52 (Ø 0,375") 32~39 (320~390 kgf·cm) 13,2~13,5 (0,52~0,53")
Ø 12,7 (Ø 0,5") 49~59 (490~590 kgf·cm) 16,2~16,5 (0,64~0,65")
Ø 16 (Ø 0,63") 57~71 (570~710 kgf·cm) 19,2~19,7 (0,76~0,78")
Ø 19 (Ø 0,75") 67~101 (670~1010 kgf·cm) 23,2~23,7 (0,91~0,93")
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
Outdoor Unit
1. Unscrew the cover from the packed valve on the side
of the outdoor unit.
2. Remove protective caps from ends of valves.
3. Align ared pipe end with each valve, and tighten the
are nut as tightly as possible by hand.
4. Using a spanner, grip the body of the valve. Do not
grip the nut that seals the service valve.
5. While rmly gripping the body of the valve, use a
torque wrench to tighten the are nut according to the
correct torque valvues.
6. Loosen the aring nut slightly, then tighten again.
7. Repeat Steps 3 to 6 for the remaining pipe
USE SPANNER TO GRIP MANI BODY
OF VALVE
Torque from tightening the are nut can snap off other
parts of valve.
29


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