Samsung AM***XMDCH Series Installation Manual page 17

Pipe installation for an outdoor unit
Pipe direction
The refrigerant pipe can be pulled out from front, flank, rear, and bottom side, so install it depending on the installation site
condition.
CAUTION
Caution for using knock-out hole
Make sure not to damage the exterior of the outdoor unit.
Remove all burrs at the edge of the knock-out hole and apply the paints it to prevent
rust.
Use a cable tube and bushing to prevent a cable from being damaged when passing
through a knock-out hole.
After installing pipes, block the unused knock hole to prevent small animal from
entering. However, the radiant heat hole (A) should be able to intake air.
Caution for connecting the pipe
CAUTION
When brazing the pipe, the unit may get damaged by a brazing fire and a
flame. Use a flame proofing cloth to protect the unit from a brazing fire or
flame.
The O-ring and Teflon packing inside service valve may get damaged by a
brazing fire. Wrap the bottom side of the service valve with a wet cloth and
braze it as shown above. Make sure not to interrupt the brazing with the
drips from the wet cloth.
The connecting pipes of liquid side and gas side should not contact each
other nor should they contact to the product. Vibration may cause damage
to the pipes.
Outdoor unit refrigerant pipe connection
Classification
Working process
Front, flank, rear side of pipe connection
First, remove the pipe cover from unit.
Separate the knock-out hole to use. If the
hole is open, small animals such as squirrels
and rats may get into the unit through the
hole and the unit may be damaged.
High pressure Low pressure
(Liquid side)
Bottom side of pipe connection
Separate the knock-out hole at the bottom
side of the unit and install the pipe.
After installing and insulating the pipe,
close up the remaining gap. If the gap
remains open, small animals such as rats
and squirrels may get inside the unit and
cause damage to the unit.
(Gas side)
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