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10. Field Operation
10.1 Setting of Dip Switches
(1) DIP switch must be set with power sources of the
indoor and outdoor units in OFF state. Otherwise,
the settings are invalid.
(2) The DIP switches are located as shown in the
figure below.
DSW5
DSW3
DSW4
DSW7
(3) 2 rotary switches and 5 dip switches are arranged
on the PCB of indoor unit, and the dip switches
must be set based on the following instructions
before test run. The system shall not be started
before the completion of dip switch setup.
(a) Numbering of indoor units (RSW1&DSW6): All
indoor units must be numbered in sequence
based on the diagram below. Outdoor units
must be numbered from "0".
Setting of Indoor Unit
DSW6 (tens digit)
Setting position
DSW6 and RSW1 are set to "0" before delivery.
When H-LINKII is used, up to 64 indoor units can be connected.
When H-LINKII is not used, up to 16 indoor units can be connected.
(b) Refrigeration system code No. (RSW2 &
DSW5) is required to be set. All are set to
OFF before delivery.
Setting of Refrigerant System
DSW5 (tens digit)
Setting position
DSW5 and RSW2 are set to "0" before delivery.
When H-LINKII is used, up to 64 indoor units can be connected.
When H-LINKII is not used, up to 16 indoor units can be connected.
DSW6
RSW1
RSW2
RSW1 (units digit)
Ex.) Set machine No. 16
DSW6
Insert a flat head screw
driver into the slot for
setup
No. 1 is ON
Set to "6"
Ex.) Set system No. 6
RSW2 (units digit)
Insert a flat head screw
driver into the slot for
setup
No. 1 is OFF
(c) Setting of capacity code (DSW3)
This switch is used to set indoor unit capacity.
The capacity is set before delivery.
(d) Model code setting (DSW4)
The code is set before delivery.
(e) Safety reset (DSW7)
* Factory settings
Once strong current is
accidentally connected to
Terminals 1 and 2 of TB2, the
PCB fuse will be blown. In such
a case, it's essential to correct
the wiring and then to set switch
No. 1 to ON position.
Note:
Symbol "
The position indicated in the diagram is in the
factory-set state.
The power supply shall be turned off before the
setup of DIP switch. Otherwise, the settings will be
invalid.
DSW5
RSW2
Set to "6"
10
" indicates the location of DIP switch.
CAUTION
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