GREE DC Inverter Side Discharge VRF Ⅱ for North America
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4.3.2.4 Installation notice
(1) Install indoors. To avoid collision, it is suggested to place it in the monitoring room together with
the computer.
(2) No need of power supply. Power is supplied through computer’s USB interface.
4.3.3 Communication board
Communication board is mainly used for transferring data. It functions similar with a patching board.
Provided that units are far away from the monitoring computer, communication board can be used for
connection.
4.3.4 Communication cord
4.3.4.1 USB wire
Connect USB wire with computer’s USB interface at one end and with the USB interface of USB
data converter at the other end, as indicated below:
4.3.4.2 Board Connection Wire
There are 2 board connection wires supplied for the commissioning tool kits. One is 1 meter’s long
and the other is 5.5 meters’ long. They are only different in length. One end of the wire shall connect with
air conditioner’s communication interface and the other end shall connect with CAN interface of Gree
USB converter. As shown below, the wire can be connected to the communication interface of outdoor
unit or the communication interface of indoor unit:
4.4 Software introduction
(1) One-button commissioning
Personnel responsible for the commissioning of air conditioners can start commissioning by
pressing one button according to the commissioning logic of software, which will give the commissioning
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