Envicool EMW90HDNC1U - Parts Replacement; Parts Description

User Manual
7 Fault Management
EMW90HDNC1U Air-cooled Chiller
33
Fault
Phenomenon
Possible Reasons Inspection and Maintenance
Pump body failure
Replace the pump.
Please refer to 7.4.3 Replacing the
Electrical Heater and Circulation Pump for
specific operation.
Electrical heater
does not work
No heating requirement
Check the outlet coolant temperature, and
whether the heating set point is set
reasonably.
Loose circuit connection Fasten the circuit connector.
Electrical heater overheat
protection
After waiting for a period of time, restart the
electrical heater and observe whether the
electrical heater works normally.
Electrical heater fault
Replace the electrical heater.
Please refer to 7.4.4 Replacing the
Electrical Heater and Circulation Pump for
specific operation.
7.4 Parts Replacement
7.4.1 Parts Description
The main parts and their locations in the EMW90HDNC1U chiller are shown in Figure 7-1.
Figure 7-1 Parts description
2
1
3
4
7
6
8
1
1
9
10
1
11
5
1: Plate heat exchanger 2: Condenser 3: Refrigerant pipeline
4: Compressor 5: Fan 6: Coolant pipeline
7: Circulation pump 8: Electric control box 9: Electrical heater