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8. Notes and attentions of function selection setting
To carry out function selection setting of indoor unit, the indoor unit must be stopped, if not, sometimes the setting cannot be
correctly applied.
The setting content will be different due to different functions of each unit, please refer to indoor unit installation spot checking
method for detailed information.
After carried out function selection setting related to indoor unit control, please re-connect the product and confirm (clear EEPROM
Data).
After replaced the base plate or wire controller of the indoor unit, please set again, and re-connect the product to confirm.
When being used together with other centralized controllers, after set “Cool and warm automatic function” b8, please make same
setting on the centralized controller which can set function selection.
If only connected with light receiving section, need to replace with cable wire controller temporarily.
Carry out b4 setting by the product, filter symbol must be reset, do the setting after the filter symbol of the wire controller
disappeared.
When setting function selection, please ensure to consult the service personnel of our company.
9. Notes and attentions of DC desiccant unit
“Dry 1”, “Dry 2” and “Dry 3” can only be set on DC desiccant unit, taking the first indoor unit as example, operate 40077 address to
set.
10. Notes and attentions of wire controller installation
Although wire controller is installed, and wire controller prohibition function is not set, but it shows “centralized control” on the
wire controller, which leads to that the wire controller cannot be controlled, please check whether the power supply is connected
before installation, because there’s possibility that it identifies the air conditioner which is installed with wire controller as without
wire controller installed. After connected and confirmed again, clear wire controller prohibition, reconfirm whether the “centralized
control” of wire controller is cancelled. In addition, the indoor unit which isn’t installed with wire controller will always be
controlled by the product.
For indoor unit which is installed with wire controller, if unload the wire controller in half-way, the product may be not able to
control the air conditioner properly, please connect and confirm again (clear EEPROM).
11. Notes and attentions of Modbus RTU CRC CHECK
Modbus RTU CRC check of the product shall adopt CRC16.
12. Notes and attentions of Modbus TCP connection
When using multiple computers for management to operate the same Modbus adapter, as long as one of the computer for
management disconnects, if other computers for management want to continue to send code, need to re-establish TCP connection
between the client and server.
13. Notes and attentions of connection confirmation
If the connection confirmation takes too long time, in the connection confirmation for more than 20 minutes, please use wire
controller to stop the operation of indoor unit, the time of connection confirmation can be shortened.
6 Notes and Attentions