System Function Button Operations - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual
Precautions:
① When the DIP switch setting is not covered in the above scope, a DIP switch setting exception
fault may occur.
② A module must be set to master unit status, and only one module can be set to master unit
status in each refrigerating system.
③ Settings must be performed in power-off status.
④ The default factory setting is "00" master unit status.
⑤ Master module must be set correctly; otherwise units cannot be started up.
3.1.6 DIP switch example
(1) Explanation of DIP switch positions
On the DIP switch, ―ON‖ indicates ―0‖ status and the opposite direction indicates ―1‖ status.
The position of white lever indicates the position to be set to.
(2) Example
The following takes outdoor fan static pressure settings as an example. Set 30Pa to master unit.
The settings are as follows:
Master unit
Note:
① System function settings and query must be performed after commissioning of the entire unit.
② System function settings and query can be used no matter whether the entire unit runs.

3.2 System Function Button Operations

30Pa
77
COMMISSIONING OPERATION