Table of Contents
Advertisement
TROUBLESHOOTING/PRECAUTIONS
1. Initialization processing takes about 1 minute after
switching on the TCC-LINK board. The startup time
depends on the number of indoor units.
2. When sending a write request from the TCC-LINK board to 64
indoor units, it is necessary to leave an interval of at least 90
seconds before the next request. If write requests and read
requests are sent consecutively from the TCC-LINK board,
write requests may be temporarily interrupted to give priority to
polling processing.
3. Even when polling from the TCC-LINK board has stopped, the
TCC-LINK board continues polling to the indoor units.
4. The TCC-LINK board has no function for resetting software.
5. Restarting the TCC-LINK board clears all acquired data on the
indoor units. Indoor unit data must be re-acquired each time the
power is turned on.
6. If changing the setting of indoor units, it is necessary to reset the
TCC-LINK board. (Address)
7. Settings for the operating mode, temperature range, air
direction, and airflow of the indoor units differ according to the
unit type.
8. When the power to the outdoor units of a multi-air-conditioning
system is interrupted or when the system is being re-booted, the
TCC-LINK board cuts TCC-LINK communication. The
response to communication break is
"Exception Response = 0 x 06"
9. The register "TCC-LINK bus error" will be "Error 1" when all
the indoor units have a communication fault.
10. The temperature setting, airflow, and air direction of the indoor
units vary for each operation mode. For example, if you choose
to change both the operation mode and temperature setting at
the same time, first change the operation mode before changing
the temperature setting.
11. Indoor unit (s) need to set the Central Control Address from
Wired Remote Controller or Central Remote Controller. TCC
Board communicates with the indoor unit using the Central
Control Address.
INDOOR UNIT ADDRESS SETTING
1. Set the central control address of the Toshiba Carrier
VRF Indoor Units so that is does not match the address of
any other unit.
2. After changing the central control address, reboot the TCC-
LINK board.
21
Advertisement
Table of Contents
