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10-2-1.System Configuration
(1) Single
(2) Twin
(3) Single group operation
(4) Multiple groups operation (Single, Twin operation)
• Header unit
: The header unit receives the indoor unit data (thermostat status) of the follower (Without
identical line address & indoor / outdoor serial) and then finally controls the outdoor
compressor matching with its own thermostat status.
The header unit sends this command information to the follower unit.
• Follower unit : The follower unit receives the indoor unit data from the header (With identical line address &
indoor / outdoor serial) and then performs the thermostat operation synchronized with the
header unit.
The follower unit sends own thermostat ON/OFF demand to the header unit.
(Example)
No. 1-1 header unit sends / receives signal to / from No. 1-2 follower units.
(It is not influenced by the refrigerating line 1 or 2 address indoor unit.)
Outdoor
Indoor
Remote
controller
1-1
Individual
(Master/Header)
1-1
Master/Header
1-2
Sub/Follower
2-1
Master/Header
1-1
3-1
Sub/Header
4-1
Sub/Header
Sub/Header
8-1
Sub/Header
(Max. : 8 units)
• Each indoor unit controls the outdoor unit individually.
2-1
Sub/Header
1-1
1-2
Sub/Follower
Master/Header