Hitachi RAD-18NH7A Service Manual page 56

Fan-7-step request
Actual compressor rotation speed (5 MSB)
Actual compressor rotation speed (4)
Actual compressor rotation speed (3)
Actual compressor rotation speed (2)
Actual compressor rotation speed (1)
Actual compressor rotation speed (0 LSB)
Compressor during operation
Compressor during operation
Outside temperature (7 MSB)
Outside temperature (6)
Outside temperature (5)
Outside temperature (4)
Outside temperature (3)
Outside temperature (2)
Outside temperature (1
Outside temperature (0 LSB)
Self-diagnosis (3 MSB)
Self-diagnosis (2)
Self-diagnosis (1)
Self-diagnosis (0 LSB)
Defrost request signal
During forced operation
Multi-bit
Compressor minimum rotation speed (4 MSB)
Compressor minimum rotation speed (3)
Compressor minimum rotation speed (2)
Compressor minimum rotation speed (1)
Compressor minimum rotation speed (0 LSB)
OVL up
15/20(A)
Compressor command speed (7 MSB)
Compressor command speed (6)
Compressor command speed (5)
Compressor command speed (4)
Compressor command speed (3)
Compressor command speed (2)
Compressor command speed (1)
Compressor command speed (0 LSB)
Compressor ON
Reversing valve
2-way valve
Fan (2 MSB)
Fan (1
Fan (0 LSB)
Capacity code (3 MSB)
Capacity code (2)
Capacity code (1)
Capacity code (0 LSB)
Indoor in-operation bit
Operation mode (2 MSB)
Operation mode (1)
Operation mode (0 LSB)
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