Toshiba RAV-SM1603AT-E Service Manual page 129

4. Single group operation
• Each indoor unit controls the outdoor unit individually.
2-1
Sub/Header
5. Multiple groups operation (Manual address setting)
2-1
Sub/Header
• Header unit: The header unit receives the indoor unit data (thermo status) of the follower
(Without identical line address & indoor/outdoor serial) and then finally controls the outdoor
compressor matching with its own thermo 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 thermo operation synchronized with the header
unit. The follower unit sends own thermo ON/OFF demand to the header unit.
(Example)
No. 1-1 header unit sends/receives signal to/from No. 1-2 and No. 1-3 follower units.
(It is not influenced by the line 2 or 3 address indoor unit.)
1-1 4-1
Sub/Header Master/Header
1-1 1-2
Sub/Header Sub/Follower
3-1
Sub/Header
3-1
Master/Header
– 129 –
8-1
Sub/Header
3-2 3-3
Sub/Follower Sub/Follower