Gree GMV MTAC VRF Series, Service Manual

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Gree GMV MTAC VRF for North America
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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
(1) 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
(1) 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 order to units. Then commissioning will be started up automatically step by step.
During the commissioning, the corresponding process will be ticked in green on the software
USB Wire