Piping
Liebert
®
SRC
™
User Manual 56
5. Following the torque guidelines in Figure 5-14, finish tightening the flare nut with a torque wrench until
the wrench clicks referring to Table 5-25 for correct connection points.
Figure 5-25 Correct piping attachment for SRC18 outdoor unit
NOTE
When tightening the flare nut with a torque wrench, make sure the direction
for tightening follows the arrow on the wrench.
Table 5-14 Tightening torque for flare nuts
Pipe size (in. O.D.) Tightening torque (ft-lbs)
1/4
13.9 – 18
3/8
24.5 – 30.3
1/2
39.7 – 47.7
5/8
45.5 – 59.2
3/4 71.6 – 87.5
Outdoor Unit
Gas Piping
(Larger diameter)
Liquid Piping
(Smaller diameter)
Torque Wrench
Bracket for
Main Power
Cables
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