Service Manual SM-MDS_(ii) 11
2.3 MDS System Piping Connection
MDS system provides multiple indoor unit installation through refnet and distributor connection. However, there
are some limitations where installer should take note. Refer to the figures below, after the installation of
distributor, the piping should directly connect to indoor unit and cannot be connected to other refnet or distributor.
This is to prevent uneven refrigerant flow through the system and causing the system to become unbalance and
affecting its performance. Do take note on the allowable tilting angle and orientation as well.