LG AHNW146A0 Owner's Manual page 10

Owner's instruction
Monitoring Information
10 Air-to-Water Heat Pump Owner's Manual
Heavy trouble
This icon indicates that heavy trouble is
occurred.
Slight trouble
This icon indicates that slight trouble is occurred.
Thermostat
This icon indicates connection with thermostat.
Central Controller
This icon indicates that the product is controlled
by the central controller.