GIWEE C4OU-D36HR4-D01 - Tightening Connection; Piping Length and Height Difference

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⚫ Flaring work
Outer
diam.
(mm)
A(mm)
Max.
Min.
φ6.35
1.3
0.7
φ9.52
1.6
1.0
φ12.7
1.8
1.0
φ15.88
2.0
1.2
8.2 Tightening Connection
⚫ Align the center of the pipes.
⚫ Sufficiently tighten the flare nut with fingers, and then tighten it with a spanner and torque wrench.
Caution: Excessive torque can break nut depending on installation conditions.
8.3 Piping length and height difference
One IDU
Length
Max.15m
Dual split
Total length
Max.30m
Difference in height between
indoor and outdoor units
Max.10m
Outer
diam.
(mm)
Tightening
torque
(N.cm)
Additional
tightening torque
(N.cm)
φ6.35
1000
1200
φ9.52
1500
1800
φ12.7
2000
2300
φ15.88
2800
3200