R410A 60Hz Top-discharge Outdoor Series Technical Manual
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5.3 Drainage pipe insulation
The connection part should be insulated, or else water will be condensing at the non-insulation part.
5.4 Note
5.4.1 The jointing area, expanding area and the flange area should be heat insulated after passing the
pressure test
5.4.2 The gas and liquid pipe should be heat insulated individually, the connecting part should be heat
insulated individually.
5.4.3 Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of the indoor
unit