Instructions of Unit Installation
Connection of Pipelines
Spanner
Torque wrench
Connection of Pipeline
1.
Align the flared end of the copper pipe with the center of the thread joint. Manually tighten the
flared end nut.
2.
Use torque spanner to tighten the flared end nut until the spanner clatters (Figure
10
).
Fitting Pipe for
Indoor Unit
Flaring Nuts
Fitting Pipe
Fig.
10
The following table describes the torques for tightening nuts of different pipe diameters.
Pipe Diameter
Tightening Torque
1/4
〞（
Inch
）
15-30 (N
·
m)
3/8
〞（
Inch
）
35-40 (N
·
m)
1/2
〞（
Inch
）
45-50 (N
·
m)
２３
