McQuay MCI16036CCU216A, Technical Manual

Page: 78 / 83

R410A 60Hz 16 SEER Universal Outdoor Series Technical Manual
78
For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with,
at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be welded and
check the leakage after laying the pipes.
4.2.3. Insulate for the jointing area, expanding area and the flange area
① Insulate for the jointing area, expanding area and the flange area should be done after checking leakage of
the pipes
②
Make sure there’s no clearance in the joining part of the accessorial insulation material and local
preparative insulation material.
4.3 Drainage pipe insulation
The connection part should be insulated, or else water will be condensing at the non-insulation part.
4.4 Note
5.4.1 The jointing area, expanding area and the flange area should be heat insulated after passing the pressure
test.
4.4.2 The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated
individually.
4.4.3 Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of
the indoor unit.