Hitachi RAS-(4-12)HNP(1)(E) - Examples of the System of Connection between H-LINK and H-LINK II Units

4 Electrical wiring
113
SMGB0087 rev.0 - 12/2013
4
Unit NameofDIPswitch Mark SettingbeforetheShipment Function
Outdoor
Unit
Refrigerant cycle
DSW4
RSW1
For setting the refrigerant cycle address of
the outdoor unit. Set the DSW4 and RSW1 to
overlap the setting of other outdoor units in
the same H-LINK system.
Resistance of terminal DSW5
To adapt the impedance of the transmission
circuit, adjust DSW5 according to the number
of outdoor units of the H-LINK system.
Indoor
Unit
Refrigerant cycle
DSW5
RSW2
DSW5
RSW2
For setting the refrigerant cycle address of
the indoor unit. Set the DSW5 and RSW2
corresponding to the address of outdoor unit
in the same refrigerant cycle.
Address of the indoor unit
DSW6
RSW1
DSW6
RSW1
Setting indoor unit address. Set the DSW6
and RSW1 not to overlap the setting of other
indoor units in the same refrigerant cycle.
(If no set, the automatic address function is
performed.)
4.5.4 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 FSN2E units.
A A A A
A A A A
D
E F
C
B
D D D
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.
 N O T E
• 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rec-
ognize16indoorand16outdoorunits.