21
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Installation (Cont.)
Connecting the pipes
Screw the flare nuts to the outdoor unit coupling with the same tightening
procedures described for the indoor unit. To avoid leakage, pay attention to
the following points:
• Tighten the flare nuts using two wrenches, taking care not to damage the
pipes (Fig. 20).
• If the tightening torque is not sufficient, there will probably be some
leakage. With excessive tightening torque there may also be some leakage,
as the flange could be damaged.
• The best way to tighten the connections is using a fixed wrench and a
torque wrench, as illustrated in Fig. 11 on page 16.
connection pipes
Take down the valve cover
Fig. 20
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