Midea romstol ecoHEAT, Operation Manual, Page: 54 / 69

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8.1.2 When the wired controller is connected to the hydraulic module, the
parameters of the whole unit can be checked:
Whole unit parameter mapping address table
Register address Description
100(PLC: 40101) Operating frequency
101(PLC: 40102) Operating Mode
102(PLC: 40103) Fan Speed
103(PLC: 40104) PMV openness
104(PLC: 40105) Water inlet temperature
105(PLC: 40106) Water outlet temperature
106(PLC: 40107) T3 Temperature
107(PLC: 40108) T4 Temperature
108(PLC: 40109) Discharge temperature
109(PLC: 40110) Return air temperature
110(PLC: 40111) T1
111(PLC: 40112) T1B
112(PLC: 40113) T2
113(PLC: 40114) T2B
114(PLC: 40115) Ta
115(PLC: 40116) T5
116(PLC: 40117) Pressure 1
117(PLC: 40118) Pressure 2
118(PLC: 40119) Outdoor unit current
119(PLC: 40120) Outdoor unit voltage
120(PLC: 40121) Tbt1
121(PLC: 40122) Tbt2
122(PLC: 40123)
123(PLC: 40124) Unit capacity
124(PLC: 40125) Current fault
125(PLC: 40126) Fault 1
126(PLC: 40127) Fault 2
127(PLC: 40128) Fault 3
Compressor operating time in hour
0702 for 200 register is reserved. When it is 071x, data 4-
30 means 4-30kW
Check the code table for detailed fault codes
Check the code table for detailed fault codes.
Outdoor unit high pressure value, unit: kPa
Outdoor unit low pressure value, unit: kPa
Outdoor unit operating current, unit: A
Outdoor unit voltage, unit: V
Tbt1, unit: °C
Tbt2, unit: °C
Total water outlet temperature unit: °C
System total water outlet temperature (behind the auxiliary
heater) , unit: °C
Refrigerant liquid side temperature, unit: °C
Refrigerant gas side temperature, unit: °C
Room temperature, unit: °C
Water tank temperature, unit: °C
TW_in, unit: °C
TW_out, unit: °C
Condenser temperature, unit: °C
Outdoor ambient temperature unit: °C
Compressor discharge temperature Tp unit: °C
Compressor air return temperature unit: °C
1) Running parameters
Remarks
Compressor operating frequency in Hz
Outdoor unit's actual operating mode, 2: cooling, 3:
heating, 0: off
Fan speed, in r/min
Openness of the outdoor unit's electronic expansion valve in
P
Compressor operation time