Midea ESG-Inv M Series - Page 35

ESG-Inv M
34
Midea ESG-Inv M Series Pool Heat Pump Manual
5 Troubleshooting
5.1 Warning
5.2 How to judge whether the temperature sensor is normal
Measure sensor resistance.
If the resistance is not consistent with the sensor resistance characteristics table, the sensor has failed. Please refer to
“6 Temperature Sensor Resistance Characteristics” for more details.
5.3 Normal operating parameters range
These parameters will help to judge if the unit is in normal operation.
Cooling mode
Outdoor ambient temperature
℃
＜25
25 to 30
30 to 35
35 to 40
＞40
Discharge temperature
℃
52-62
54-68
62-74
64-80
73-85
Discharge superheat
℃
15-42
15-38
15-39
15-40
21-40
Discharge pressure
MPa
1.6-2.2
1.9-2.4
2.2-2.7
2.5-3.1
2.8-3.3
Suction pressure
MPa
0.7-1.3
0.7-1.3
0.7-1.3
0.7-1.3
0.7-1.3
DC inverter compressor current
A
1-7
1-8
1-8
2-7
2-7
Cooling mode
Outdoor ambient temperature
℃
＜10
10 to 20
20 to 30
30 to 40
＞40
Discharge temperature
℃
43-97
48-97
48-98
48-98
50-98
Discharge superheat
℃
18-40
18-39
18-40
18-40
20-40
Discharge pressure
MPa
1.7-3.8
1.9-3.8
1.9-3.8
1.9-3.8
1.9-3.8
Suction pressure
MPa
0.8-1.4
1.3-1.6
1.3-1.6
1.3-1.6
1.3-1.6
DC inverter compressor current
A
1-12
1-11
1-10
1-9
1-8
 All electrical work must be carried out by competent and suitably qualified, certified and
accredited professionals and in accordance with all applicable legislation (all national, local and other laws,
standards, codes, rules, regulations and other legislation that apply in a given situation).

Power-off the outdoor units before connecting or disconnecting any connections or wiring, otherwise electric
shock (which can cause physical injury or death) may occur or damage to components may occur.
Warning
MBT Confidential