Samsung DVM S Water AM080FXWANR Technical Data Book page 56

10. Installation
How to connect the pipes
Liquid pipe (welding)
※ When installing MCU, use the pattern sheet for installation that is provided with the product.
※ When welding the gas pipes, protect the product with the flame-proof sheet.
※ When connecting the MCU with outdoor units, default direction is set in the MCU.
If installing opposite direction, weld the enclosed copper cap in each high pressure, low pressure and liquid pipes.
56
Protect with wet towel
when welding
Pipe connection to indoor unit
Gas pipe (welding)
70 mm
70 mm
Pipe connection from outdoor unit
 Default installing direction.
Low pressure gas pipe conection (welding)
High pressure gas pipe connection (welding)
Liquid pipe connection (welding)