Toshiba RAV-HM301MUT-E Service Manual page 40

No. Item
28 Communication
type setting
29 Rotation /
backup
operation
Outline of specifications
1) Communication type will be determined automatically by the
combination of the indoor unit and the remote controller/
remote sensor.
2) However, this must be set to TCC-Link when connecting to a
central control device exclusively for TCC-Link.
Set the CODE No. (DN) [FC] to "0000" (TCC-Link).
DN [FC] Data
0000
0004
3) The communication protocol used in the operations can be
checked by "Monitor function" on the wired remote controller.
Monitor Communication protocol
CODE No. 0000: TCC-Link
B9 0001: TU2C-Link
* Refer to page 82 or the manual for the remote controller for
operation methods of "Monitor function".
1) Rotation control which alternately performs operations is
available only when the following conditions are satisfied.
• Only two systems are connected
• Each system is connected singly
2) If a trouble occurs in either of the systems, the other
system will start to operate. (backup operation)
3) When performing rotation control, the DN code [1C1] for the
header unit must be set to "0001" (valid).
4) The intervals to switch the operations can be set by setting
the CODE No. (DN) [1C2] in increments of days
(maximum 28 days).
5) Start the other operation 30 minutes before the end of one
operation. Rotation lap time can be set in increments of 10
minutes by setting the CODE No. (DN) [1C3] (maximum 70
minutes).
6) A check code will show on the remote controller if backup
operations are being performed due to a trouble.
7) If the following trouble occurs, backup operations will
not be performed, and the entire system will stop.
• E03 : Remote controller - indoor unit communication trouble
8) If the following trouble occurs, only the header unit will
perform operations.
• E18 : Indoor header - follower unit communication trouble
* This function is not guaranteed to protect the devices within
the room of air conditioning.
Rotation interval
On
Header unit
Start
Follower unit
Off
Communication type
TCC-Link
TU2C-Link (Factory default)
On
Off
On
Off
Rotation lap time
– 40 –
Remarks
• When performing
group control in
combination with a
TCC-Link dedicated
indoor unit (other than
RAV-HM∗∗∗), change
the communication
type to TCC-Link.
Off
On