Samsung AC018KNZDCH/AA Service Manual page 26

Disassembly and Reassembly
No Parts
12 Ass'y 4way Valve
3-18
Procedure
1) Purge the Coolant first.
2) Unscrew and remove 2mounting screws
in muffler.
3) Unscrew and remove 2 mounting screws
in Service Valve. (Use +Screw Driver)
4) Separate the pipe from the Entrance/Exit
using a welder.
When removing the compressor,
Heat Exchanger, and Pipe, purge the
Coolant inside the Compressor
completely and remove the pipe
with a welding flame.
Remark
Samsung Electronics