Hitachi UTOPIA RAS-4 Series - Examples of the System of Connection between H-LINK and H-LINK II Units

10 Electrical wiring
H-LINK II system
TCGB0136 rev.1 - 05/2021
110
10.5.4 Examples of the system of connection between H-LINK and H-LINK II units
InthecaseofmixedsystemswithH-LINKandH-LINKII,settheH-LINKunitsintherst16positionofthesystem,asin
the following example where 42 systems are connected, 16 with indoor FSN1E units and 26 with indoor FSN4E units.
A: Refrigerant cycle.
B: Outdoor unit.
C: Indoor unit.
D: Indoor unit address.
E: Either the current remote control switch (H-LINK) or the new one (H-LINK II) can be used.
F: Only the new remote control switch (H-LINK II) can be used.
? NOTE
• ThemaximumnumberofindoorunitsthananH-LINKIIcancontrolis160.
• IfyouusePSC-5SandtheCSNETWEB2.0(systemsonlycompatiblewithH-LINK)bearinmindthatitwillonlyrecognize16indoor
and16outdoorunits.