R410A 50Hz Tropical Split AC MCAC-UTSM-2012-12
130
Fig-21
NOTE:
When welding the refrigerant pipe, in order to prevent internal oxidation of the pipe, nitrogen must be filled in. Otherwise, the
oxidized chips may block refrigerating circulatory system.
3.5.1 Size of Outdoor Unit Pipes and Piping Methods
1) Size of outdoor unit pipes and piping methods