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Trane SWT03335 Thermal Flow Sensor 24V AC/DC

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Special Price $301.97 Regular Price $434.95
In stock
SKU
SWT03335
The Trane SWT03335 Thermal Flow Sensor is a monitoring component used to determine when fluid movement is taking place and to indicate the control circuit when the flow conditions have altered in HVAC systems. It operates by using a temperature sensor that responds to changes, in temperature from the fluid flow and sends a 24V AC/DC signal, helping the control system notice when fluid is moving in chiller and water-circulation HVAC systems. It is placed in the piping or flow line, where the sensing probe will come into contact with the flowing fluid and electrical leads.
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HVAC Controls & Electrical, Control & Sensing Devices
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Product Questions (2)
Customer Questions
What maintenance is required for the Trane SWT03335 Thermal Flow Sensor?

Regularly inspect the sensor for debris, corrosion, or loose connections. Clean the flow path and sensor surface carefully. Test periodically to ensure accurate flow detection. Proper maintenance ensures accurate system operation and prevents false readings.

What are common issues with the Trane SWT03335 Thermal Flow Sensor?

  • Inconsistent or inaccurate flow readings.
  • Sensor sticking or unresponsive.
  • Corrosion or debris affecting accuracy.
  • Electrical signal interruptions.

Installation Steps

Step 1: Turn off and disconnect power to the system to ensure safety.

Step 2: Identify the appropriate section of pipe for flow measurement.

Step 3: Install the new sensor securely in-line with the flow direction.

Step 4: Connect the electrical wires to the AC/DC terminals, observing correct polarity.

Step 5: Verify the sensor is stable and properly aligned with the fluid flow.

Step 6: Restore power and test the system to confirm accurate flow sensing.