Part 3
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System Design and Installation
… box continued from previous page
7. Flush the first opening:
a) Using suitable material, such as a bag or cloth, press firmly against the opening at indoor unit A.
b)
When the pressure becomes too high to block with your hand, suddenly remove your hand allowing gas to
Repeatedly flush in this manner until no further dirt or moisture is emitted from the piping. Use a clean cloth
to check for dirt or moisture being emitted. Seal the opening once it has been flushed.
8.
Flush the other openings in the same manner, working in sequence from indoor unit A towards the outdoor units.
Refer to Figure 3-5.12.
9. Once flushing is complete, seal all openings to prevent dust and moisture from entering.
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