GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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consumption. The setting scope is as follows:
Note:
The cooling or heating effect may fall off after the capacity limitation is set.
8) n5 Indoor unit project number offset
This function sets the IDU project number when multiple refrigerating systems are controlled in a
centralized manner (by using a remote monitor or centralized controller), avoiding the same project
number between different systems. If the project number is not set, project number conflicts may occur
between systems.
This function only needs to be set on the master system, which is the system with the centralized
control address SA2 DIP switch being “0000X”. For details, see the "Centralized Control Address DIP
Switch (SA2_Addr-CC)" section.
9) n6 Fault query
This function queries historical faults of the system. Up to five historical faults can be memorized in
time order.
10) n7 Parameter query
This function queries operation parameters of each module of the ODU in real time.
11) n8 Indoor unit address query
This function queries addresses of all IDUs through one operation of the ODU.
12) n9 Online IDU quantity query
This function queries the number of online IDUs through the ODU.
1.3.3 Function Setting Operations
Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW3" on the master unit to enter the to-be-selected status of function settings. By
default, the master unit is displayed as follows:
Users can select corresponding functions by pressing "SW1 (UP)" or "SW2 (DOWN)" on the master
unit, including:
A7 Blinking 00 Blinking 00 Blinking
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