Hisense AHM-080HCDSAA - Checking of Using 7-Segment Display (I.U.)

321
Troubleshooting
Indication Protection Control Remark
P 1
Pressure Ratio Protection
Control
To control the compressor frequency for prevention of operation with high/low
pressure ratio.
P2
High Pressure Increase
Protection Control
To control the compressor frequency for prevention of high pressure increase.
P3
Inverter Current Protection
Control
To control the compressor frequency for prevention of inverter current increase in
the outdoor unit during operation.
P4
Inverter Fin Temperature
Increase Protection Control
To control the compressor frequency for prevention of inverter n temperature
increase. The inverter n temperature is detected at the O.U. main PCB.
P5
Discharge Temperature
Increase Protection Control
To control the compressor frequency for prevention of discharge gas temperature
increase during operation.
P6
Low pressure Decrease
Protection Control
To control the compressor frequency for prevention of low pressure decrease.
P9
High Pressure Decrease
Protection Control
To control the compressor frequency for prevention of high pressure decrease,
which would interrupt smooth refrigerant distribution to indoor unit with di󰀨erent
height and oil supply to the compressor.
PA
Demand Current Control
To control the compressor frequency for xing the inverter primary current around
the set value (40~100% of rated current).
PD
Low Pressure Increase
Protection Control
To control the compressor frequency for prevention of low pressure increase.
1.2.1.2
Checking of Using 7-Segment Display (I.U.)
(1) Normal Operation Display
Segment Display
SEG1 SEG2 SEG3
Initial Display
Space heating Thermo OFF/ Cycle 1 Thermo OFF/Cycle 2 Thermo OFF
Space heating Thermo ON / Cycle 1 Thermo ON/ Cycle 2 Thermo OFF
Space heating Thermo ON / Cycle 1 Thermo OFF / Cycle 2 Thermo ON
Space heating Thermo ON/ Cycle 1 Thermo ON/ Cycle 2 Thermo ON
Space cooling Thermo OFF/ Cycle 1 Thermo OFF / Cycle 2 Thermo OFF
Space cooling Thermo ON / Cycle 1 Thermo ON / Cycle 2 Thermo OFF
Space cooling Thermo ON/ Cycle 1 Thermo OFF/ Cycle 2 Thermo ON
Space cooling Thermo ON / Cycle 1 Thermo ON / Cycle 2 Thermo ON
DHW Thermo OFF
DHW Thermo ON
Swimming pool Thermo OFF
Swimming pool Thermo ON