Central Control - LG ARUM072BTE5 Installation Manual

Central Control

Central Control Addresses Assignments
Gather any preferences the project may have; if there are no preferences:
• Hex assignments do not have to be assigned in any particular order, or an order defined by the routing of the communications cable
between the indoor units. In most cases, Hex addresses can be skipped.
• All members of a Hex Group are not required to be on the same Multi V system.
• Addresses can be assigned at random, not in any particular order, and can be skipped.
Indoor Unit Central Control Address Assignments
A central control address is made up of two hexadecimal characters.
• The first character in the central control address is the Hex Group
Identifier.
Possible Hex Group Identifiers (in order of lowest to highest) are
0-9 followed by A-F. See complete list on next page.
• The second character in the address is the Hex Member Identifier
in a Hex Group.
Hex Member Identifiers (in order from lowest to highest) are 0-9
followed by A-F. See complete list in table at right.
Hex Address Assignment Limitations
• There is a limit of 16 Members per Hex Group
• There is a limit of 16 Hex Groups per system.
• There is a limit of 256 possible Member Identifiers per Central
Control (See Central Controller Communications Limitations).
Setting Central Control Addresses
1. Verify power to the whole system, including indoor units and
outdoor unit(s), is OFF. If not, turn OFF.
2. If not installed already, connect the communication cable from
CEN. A and CEN. B terminals on the master outdoor unit to A and B
terminals on the central controller. Polarity matters, so make sure A
to A and B to B.
3. Power the whole system ON.
4. Set the group and indoor unit numbers using the wired remote
controllers.
5. To control several sets of indoor units as a group, set the group I.D.
settings from 0 to F.
Due to our policy of continuous product innovation, some specifications may change without notification.
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Central Control Address Nomenclature.
1
First character is the
(Hex) Group Identifier 0-F
(Example: Group 1)
Table 64: Central Control Address Nomenclature List.
Group Control by Central Controller
No. 0 Group (00 ~ 0F)
No. 1 Group (10 ~ 1F)
No. 2 Group (20 ~ 2F)
No. 3 Group (30 ~ 3F)
No. 4 Group (40 ~ 4F)
No. 5 Group (50 ~ 5F)
No. 6 Group (60 ~ 6F)
No. 7 Group (70 ~ 7F)
No. 8 Group (80 ~ 8F)
No. 9 Group (90 ~ 9F)
A Group (A0 ~ AF)
B Group (B0 ~ BF)
C Group (C0 ~ CF)
D Group (D0 ~ DF)
E Group (E0 ~ EF)
F Group (F0 ~ FF)
Outdoor Unit to Central Controller Communication
Connections.
Master Outdoor Unit Communication Terminal Block
SODU IDU
A
B A B
B(D) A(C)
Central Controller Connection
Central Control
D
Second character is the
Hex Member (Indoor Unit)
Identifier 0-F (Example:
Unit 14)
CENT DRY1 DRY2 GND
B A
12 V
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