Gree GMV5 Series Technisches & Service-Handbuch - Seite 15

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2.COMMUNICATION DEBUG

2.1 COMMUNICATION DEBUG WITH AIR CONDITIONING

EQUIPMENT

After connecting unit multisystem, set the

centralized control address and IDU engineering

code of the unit to avoid C5 and CJ malfunction

Check BADnet gateway installation,

communication connection and dial-

Is the CAN bus matched

resistance is installed correctly?

AC unit and BACNet gateway

power off (this step can be

cancelled if it is already power off)

Energize the BACnet gateway

Check if the operation light is

blinking? (Blink once every 1s)

Check if BACnet gateway CAN

RX/TX light is blinking?

Communication between BACnet

gateway and AC unit is normal,

AC unit data can be received

GMV BACnet Gateway Technical Service Manual

Start

up setting are correct

Yes

Energize the AC unit

If BACnet gateway

power LED always on?

Yes

End

Conduct setting by refering

to the dial-up setting in "1.

Hardware debug"

Check supply voltage and

power connecting cable

BACnet gateway cannot

work normally, replace

other BACnet gateways

Abnormal condition

treatment 1