Communication Connection Between The Hydro Box And Wired Controller - Gree GMV-S120WL/A-S Service Manual

Wired
controller
P13
address
setting
Note:
a) All wired controllers are set as primary wired controller before leaving factory.
b) Under the status of parameter setting, speed button, timer button, sleep button and
swing button are all invalid. Pressing ―On/Off‖ button will return to homepage but won't turn on
or off the unit.
c) Under the status of parameter setting, remote control signal is invalid.
12.3.3 Communication connection between the hydro box and wired
controller
There are four connection method as shown below
GMV5 Home DC Inverter Multi VRF Units
01： Primary
wired
controller
01
02：
Secondary
wired
controller
One wired controller controls one hydro box
188
When two wired controllers control one (or more)
indoor units, the addresses of the controllers must be
different. Secondary wired controller (address is 02)
does not support unit's parameter setting except
setting of its own address.