To Next PageTo Next PageWhy is the air side heat exchanger in my Midea MGBT-F250W/RN1 Chiller excessively frosted?
Excessive frost on the air side heat exchanger can be due to a faulty 4-way valve or thermal resistor (check and replace if needed) or an air loop short-circuit (resolve the short-circuit).
How to fix over low air discharge pressure in Midea MGBT-F250W/RN1 Chiller (Heating operation)?
Low air discharge pressure during heating may be caused by low chilling water temperature (check it) or refrigerant leakage or insufficient refrigerant volume (test for leaks and recharge). If the air suction pressure is too low, see the section on “Excessive low air suction pressure”.
What to do if my Midea MGBT-F250W/RN1 Chiller compressor can’t start?
If the compressor won't start, check for a tripped overcurrent relay or burnt fuse (replace), power to the control circuit (check wiring), high or low voltage protection (refer to air suction and discharge pressure error sections), burnt contactor coils (replace), incorrect phase sequence (reconnect any two of the three phases), water system error or shorted flow-type volume controller (check water system), or error signals from the wire controller (identify and address the error).
What to do if my Midea MGBT-F250W/RN1 compressor stops because of integrate temperature sensor or air discharge temperature protection?
If the compressor stops due to the integrated temperature sensor or air discharge temperature protection, check for high or low voltage (ensure it's within 20V of the rated voltage), high air expelling pressure or low air suction pressure (refer to those sections), or a component error (check the integrated temperature sensor after the motor cools down).
What causes over low air suction pressure in Midea MGBT-F250W/RN1 Chiller (Heating operation)?
Low air suction pressure during heating can result from insufficient refrigerant (charge the system), insufficient air flow (check fan direction), an air loop short-circuit (remove the short-circuit), or insufficient frost-removal (replace the 4-way valve or thermal resistor if necessary).
What could cause abnormal noise from the compressor in my Midea MGBT-F250W/RN1 Chiller?
Abnormal compressor noise can be due to liquid refrigerant entering the compressor from the evaporator, causing liquid slugging (adjust refrigerant charge), or the compressor aging (replace the compressor).
General| Cooling Capacity | 250 kW |
|---|---|
| Compressor Type | Scroll |
| Sound Pressure Level | 75 dB(A) |
| Type | Air Cooled Chiller |
| Power Supply | 380V/3Ph/50Hz |
Provides overall system information, including product lists, specifications, features, and diagrams for various models.
Lists malfunction and protection codes with their corresponding trouble descriptions for various models.
Provides a table of common troubles, their possible reasons, and suggested solutions for troubleshooting.
Offers troubleshooting flowcharts for common protection mechanisms like high/low pressure and temperature issues.
Details points for attention before, during, and after trial run, including check items and data.
Details the wired controller's keys, operating instructions, functions, error handling, and installation.
Explains the wired controller's keys, operation procedures, logic, functions, and installation methods.
