7.4.3 and button
Lock / Unlock the display:
Hold and for 5 seconds to lock/unlock the display.
Water temperature setting:
Press or to set the water temperature directly.
Parameter checking:
Press first, then press to check the “ User parameter from d0 to d11
Frequency limitation code
Compressor running frequency
Remark: d4: Frequency limitation code, 0: No frequency limit,
1: Coil pipe temperature limit, 2: Overheating or overcooling frequency limit,
4: Drive Current frequency limit, 8: Drive voltage frequency limit,
16: Drive high temperature frequency limit.