BACnet Gateway Kit for Central Air Conditioners
15
3�3�5�2 Optional Repeater Kit
A RS-422/485 repeater (isolated) is required to amplify the communication signal when the
communication distance exceeds 800m�
Max. distance of communication line between two repeaters is 800m
4 Precautions
1) Be sure the adaptor is proper; otherwise the BACnet gateway would function improperly or
even be damaged.
2) Be sure the communication equipments are located at the proper place; otherwise it would
lead to communication error�
3) Be sure the communication line is connected to the correct interface; otherwise it would lead
to communication error�
4) After secured through soldering, the communication line should be protected with the
insulating tape so as to avoid oxidization and short-circuiting.
5) Working Conditions for BACnet gateway:
Temperature: 0~55 ;
Humidity: equal to or less than 95%;
Located in the room (esp. the electric control cabinet) to avoid direct sunlight, ran and snow etc.
6) WARNING: If the working conditions are beyond what stated above, then BACnet would
function improperly!
7) In order to protect the user’s access authority, when the user is visiting the Web server of the
BACnet gateway, it is strongly advised to modify the login passwords.
8) GREE keeps the right to update the products without advanced notice.
