Midea MGC-F05W/N1, Manual

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MCAC-TSM-2008-02 Outdoor units
Outdoor units 53
2. Er01
High pressure
＞
4.4MPa, display Er01, compressor and outdoor fan stop, the chiller can only resume
from protection manually.
Values display indication Er01
Refer to the instruction manual: High pressure protection
Judge 1: check the high pressure switch is well. Replace the high pressure switch
No
Judge 2: Whether the temperature of external and inlet water is high
Check the operation conditions:
1. the temperature of inlet water (cooling: below 20 ,
℃
heating: below 45 ) ℃
2. cooling: the indoor temperature is ≥ 17 and the
℃
ambient temperature is 10
℃ ～
43
℃
3. heating: the indoor temperature is ≤ 30 and the
℃
outdoor temperature is -15
℃ ～
24
℃
Stop the operation, and run it
at the normal condition.
No
Yes
Judge 3: Whether the refrigerant charge is excessive.
Check the temperature of compressor discharge and suction and
the pressure of compressor discharge and suction are normal.
Reclaim part of refrigerant
Yes
Judge 4: Whether the air flow and water flow
are insufficient
Cooling: Check whether the speed of the fan
are normal. Heating: Check whether the water flow
volume can reach the data as follow :
Capacity
( kW)
Water flow
volume (m
3
/h)
Capacity
( kW)
Water flow
volume (m
3
/h)
5 0.86 10 1.72
7 1.24 12 2.0
9 1.54 14 2.4
10 1.74 16 2.8
Change the fan or pump.
No
No
Judge 5: PCB is malfunction.
Replace PCB
Yes
Yes