Trane Koolman R410A User Manual (English)

Questions and Answers:

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Sharon CarterAug 20, 2025
How to fix too high discharge pressure in Trane Koolman R410A Chiller?
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  Tracy CruzAug 20, 2025
  To address excessively high discharge pressure in your Trane Chiller, start by cleaning the coils and ensuring the fan and motor are functioning correctly. Also, the system may have air or non-condensed gas, which requires you to vacuumize the system and refill it with coolant. If there's excessive coolant, reclaim the redundant coolant. Reduce the system load if it's too high. Lastly, inspect the pressure control over the condensation fan; repair or change the switch if there's a problem.
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Jeffery PetersonAug 21, 2025
Why does my Trane Chiller compressor run without stop?
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  Jason JohnsonAug 21, 2025
  If your Trane Chiller's compressor runs without stopping, there are several potential causes. First, the water chiller's power might be insufficient for the load. Check for issues leading to excessive load. Next, a thermo probe or control line may be faulty; try changing the thermo probe or repairing the control line. Also, the electromagnetic contactor of the compressor could be malfunctioning, so repair or replace it. A leaking valve block might also be the culprit, indicated by low discharge or high suction pressure, which would require changing the compressor. Finally, insufficient coolant can cause this issue; identify and repair any coolant leaks, then refill the system.
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james03Aug 26, 2025
What causes motor winding of compressor to be in open circuit in Trane Chiller?
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  Taylor GordonAug 26, 2025
  If your Trane Chiller's motor winding of the compressor is in an open circuit, it could be due to a few reasons. Too high evaporator load (high return water temperature) requires checking for excessive water flow and too high return water temperature. Inadequate motor cooling (too high superheat degree) requires checking for improper setting or failure of the expansion valve, or a blocked liquid line. Improper compressor voltage requires checking for too low or unbalanced power voltage, loose power wiring, or a poor electromagnetic contactor of the compressor. If internal parts of the compressor are damaged, it will require changing the compressor.
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Patricia CannonAug 27, 2025
Why is the suction pressure too low in my Trane Koolman R410A?
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  Juan BuchananAug 27, 2025
  If the suction pressure is too low in your Trane Chiller, it may be caused by an insufficient charge of coolant, indicated by a high superheat degree and low supercooling degree. Identify and repair any leak points, then recharge the coolant. Alternatively, the temperature switch setting may be too low, resulting in low low-pressure pressure and outlet water temperature; regulate the temperature switch again. Too low cold water flow requires checking whether the filter screen is blocked and if the balance valve is correctly set. A blocked dry filter should be checked for frosting and changed if necessary. Finally, a blocked expansion valve, indicated by a high superheat degree, may need cleaning or replacement.
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karabergerAug 29, 2025
What causes too high suction pressure in Trane Koolman R410A Chiller?
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  Paul GarrettAug 30, 2025
  If the suction pressure is too high in your Trane Chiller, it might be due to a few reasons. First, there could be too high cooling load, indicated by high supply water temperature, so please refer to Section E. Also, there might be excessive liquid feed from the expansion valve, leading to a low superheat degree and liquid overflow onto the compressor; regulate the superheat setting and check the thermo probe mounting in the gas line. Finally, a rupture of the air suction valve, indicated by high compressor noise, requires you to change the compressor.
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Amber WilliamsSep 1, 2025
Why is there too high noise of compressor in my Trane Koolman R410A?
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  Shirley ClarkSep 1, 2025
  If your Trane Chiller has too high noise of compressor, it may be due to damaged or broken internal parts, causing a striking sound, which requires you to change the compressor. Another cause may be liquid backflow, indicated by an abnormally cold low-pressure pipe and low superheat degree; check and regulate the superheat degree. Also, liquid coolant in the compressor at startup, indicated by an abnormally cold compressor housing, requires checking for excessive coolant.
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Roy GrantSep 3, 2025
Why the water Trane Koolman R410A cannot function in heating (CGAR)?
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  Michele BrightSep 3, 2025
  If your Trane Chiller cannot function in heating mode, check the control line. Another possible cause is a failure of the four-way valve, which would require you to change the four-way valve.
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Christine JonesSep 4, 2025
What causes too low discharge pressure in Trane Koolman R410A Chiller?
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  Glenda WolfeSep 5, 2025
  If the discharge pressure is too low in your Trane Chiller, it may be due to inadequate coolant, indicated by a high superheat degree, low supercooling degree, and air bubbles in the sight glass. Identify the leak point, repair it, and recharge the coolant. A ruptured or leaking vent valve of the compressor requires you to change the compressor. A poor low voltage switch needs you to change the poor control element. Ensure minimum operating environmental temperature by exercising proper discharge pressure control or providing an ambient temperature locking switch.
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brandonknightSep 7, 2025
What to check if Trane Koolman R410A has too low compressor voltage?
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  brucericeSep 7, 2025
  If the voltage is too low for the compressor in your Trane Chiller, check for blown fuses, too low power voltage, a malfunctioning electromagnetic contactor, or loose wiring.
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Robert PotterSep 9, 2025
What causes excessively low pressure in Trane Koolman R410A during heating?
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  Andrew GeorgeSep 9, 2025
  If your Trane Chiller has excessively low pressure in heating condition, replenish coolant. Also, it might be caused by too low or too cold air entering the coiler, so clean the coiler and check whether the fan and motor are normal. If the water chiller is operated at a temperature below the minimum operating environmental temperature, provide an environmental temperature disconnecting switch. Finally, expansion valve failure requires you to change the expansion valve.