FEATURES
TC-16001-rev.5
1-5
<Specications>
* Communication Cable: 2-Wire
* Polarity of Communication Cable: Non-Polar Cable
* Maximum Outdoor Units to be Connected: 64 Units per System
* Maximum Indoor Units to be Connected: 160 Units per H-LINK II System
* Maximum Cable Length: Total 3,280 ft. (1,000m) (including central controller)
* Recommended Cable: Communication Cable with Shield, over AWG18 (Equivalent to KPEV-S)
* Voltage: DC5V
NOTE:
When using an H-LINK II system, the setting of DIP switches for an outdoor unit and indoor unit is required.
If the DIP switches are not set, or set incorrectly, an alarm may occur because of a communication failure.
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H-LINK II System
The H-LINK II wiring system requires only two communication cables to connect each indoor unit and
outdoor unit for up to 64 refrigerant systems, and to connect wires for all indoor units and outdoor units.
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Setting of End Terminal Resistance
Factory setting of the No.1 pin of DSW5 is in the "ON" position.
When the number of outdoor units in the same H-LINK system is
two or more, set the No.1 pin of DSW5 at "OFF" at the second unit.
If only one outdoor unit is used, no setting is required.
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Corresponds to H-LINK II System
The outdoor units in the VRF Series correspond to the H-LINK II communication system. A maximum
of 64 refrigerant groups and a maximum of 160 indoor units can be controlled by only one central
control device when the equipment (central control device, indoor units, wired controller) in the same
communication system all correspond to H-LINK II.
12 12
ON
OFF
ON
OFF
Factory Setting Cancellation
DSW5
Setting of End Terminal Resistance
Outdoor Units (
Max. 64 Refrigerant Group)
Indoor Units (
Max. Connectable Q'ty: 160)
: Control Line
Central Control Device
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