Examples Of The System Of Connection Between H-Link And H-Link Ii Units - Hitachi RAS-2-HVNP Service Manual

4. Electrical wiring
Unit Name of DIP switch
Refrigerant cycle
Outdoor Unit
Resistance of terminal
Refrigerant cycle
Indoor Unit
Address of the indoor unit
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 first 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.
B
A
C
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
recognize 16 indoor and 16 outdoor units.
103
SMGB0079 rev.0 - 01/2013
Mark
DSW4
RSW1
DSW5
DSW5
RSW2
DSW6
RSW1
A A
A
D
E
Setting before the Shipment
RSW2
DSW5
RSW1
DSW6
A
A
D
F
Function
For setting the refrigerant cycle
address of the outdoor unit. Set the
DSW4 and RSW1 to overlap the set-
ting of other outdoor units in the same
H-LINK system.
To adapt the impedance of the trans-
mission circuit, adjust DSW5 according
to the number of outdoor units of the
H-LINK system.
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.
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 perfor-
med.)
A
A
D
4