Hitachi FSN3E Installation And Operation Manual page 33

ELECTRICAL WIRING
13.5.4 DIP switch setting for multiple H-LINK system
The DIP switches of all the outdoor and indoor units have to be set as follows:
Unit Name of DIP switch
Terminal resistance
Outdoor unit
Refrigerant cycle
Refrigerant cycle
Indoor unit
Address of the
indoor unit
Example of the setting of the DIP switches.
DSW5
Terminal resistance
DSW4
Number of refrigerant cycle.
)
(setting for tenth digit
RSW1
Number of refrigerant cycle
(setting for last digit)
DSW5
Number of refrigerant cycle.
)
(setting for tenth digit
RSW2
Number of refrigerant cycle
(setting for last digit)
DSW6
Address of the indoor unit
.
(setting for the tenth digit)
RSW1
Address of the indoor unit
(setting for the last digit)
27 PMML0354A rev.1 - 03/2015
Setting before the
Mark
shipment
DSW5
DSW4
RSW1
DSW5
DSW5
RSW2
DSW6
DSW6
RSW1
Cycle number 0
(00)
(00) (00) (00) (00)
(00) (01) (02) (03)
DSW5-1 is "ON" position before shipment.
•
It is not necessary to set when H-LINK is connected with
only one outdoor unit.
•
When H-LINK is connected with more than one outdoor
unit, set as follows:
-
First outdoor unit: Keep DSW5-1 in "ON".
-
Other outdoor units: Set DSW5-1 to "OFF".
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.
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.
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.)
Cycle number 1 Cycle number 2
(01) (02)
(01) (01) (02)
(00) (01)
(00)
Function
Outdoor
units
Indoor
(02) (02)
units
(01) (02)