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Heatcraft 20903 Low Temperature & Manual Defrost Controller Assembly KE2Therm

Rating:
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1  Review Add Your Review
Special Price $356.97 Regular Price $664.95
In stock
SKU
20903
The Heatcraft Refrigeration 20903 Low Temperature & Manual Defrost Controller Assembly KE2 is a control component that is utilized to perform defrost and low-temperature monitoring in the relevant HVAC systems, such as refrigeration and cold-storage units. It works by taking inputs of temperature and time to start and control defrost or keep low-temperature set points. The mechanism synchronizes signals among sensors and other associated parts in order to achieve appropriate defrost sequencing and temperature regulation. The controller in the allocated electrical compartment and links it to existing wiring interfaces.
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HVAC Controls & Electrical, Control Boards & Modules
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Product Questions (2)
Customer Questions
What maintenance is required for the Heatcraft 20903 Controller Assembly?

Periodically inspect the controller for dust and moisture buildup. Ensure all wiring connections are secure and free of corrosion. Test the defrost and temperature settings to confirm proper operation. Maintaining it prevents malfunctions and ensures safe, accurate temperature control.

What are common issues with the Heatcraft 20903 Controller Assembly?

  • Inaccurate temperature readings.
  • Defrost cycle failure or irregular operation.
  • Loose or corroded electrical connections.
  • Display or control interface malfunctions.

Installation Steps

Step 1: Turn off all power to the refrigeration system before installation.

Step 2: Remove the existing controller assembly if replacing an old unit.

Step 3: Mount the new Controller securely in the designated control panel or location.

Step 4: Connect all wiring according to the wiring diagram, ensuring proper connections.

Step 5: Verify that the controller is firmly mounted and free of obstructions.

Step 6: Restore power and test the system to confirm proper temperature control and functionality.