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Dungs Pressure Switches 266945 Gas Pressure Switch M/R 1/4" NPT 1-20" WC

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Special Price $139.26 Regular Price $160.15
Out of stock
SKU
266945
The Dungs Pressure Switches 266945 Gas Pressure Switch is used to measure and regulate the pressure of the gas in HVAC systems. It has a 1/4” NPT connection and a pressure range of 1-20” WC to deliver consistent performance in different applications. It has a manual reset type that guarantees its correct operation after a pressure deviation. It is used for maintaining the appropriate pressure for secure operations. Benefits are such as avoiding unsafe conditions, energy conservation and equipment from damage via pressure variation.
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HVAC Controls & Electrical, Switches, Pressure Switches
Manufacturer:
https://www.partshnc.com/media/catalog/product/2/6/266945_dungs-pressure-switches_partshnc.jpg

Specifications

  • Type: Gas Pressure Switch
  • Connection Type: 1/4" NPT
  • Pressure Range: 1-20" WC
  • Reset Type: Manual Reset
  • Model: GML-A4-4-4
Manufacturer Name: Dungs Pressure Switches
Product Number: 266945
OEM Part Number: 266945
Product Description: 1 - 20 Inch Wc M/R 1/4 Inch Npt Switch
Weight:0.68lbs/308.44g

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Product Questions (2)
Customer Questions
What maintenance is required for the Dungs 266945 Pressure Switch?

Regularly inspect the pressure switch for dust, debris, and loose connections. Ensure proper calibration and check for leaks in the gas line. Maintaining it prevents inaccurate readings and operational hazards. Always follow safety guidelines when handling pressurized gas systems.

What are common issues with the Dungs 266945 Pressure Switch?

  • Failure to register low pressure accurately.
  • Switch failing to trigger.
  • Gas leaks at connection points.
  • Erratic on/off cycling.

Installation Steps

Step 1: Isolate gas supply and shut off power, confirm zero pressure before starting.

Step 2: Mount switch on port using sealant suitable for gas lines.

Step 3: Connect sensing line securely and avoid leaks or kinks.

Step 4: Wire terminals per diagram, ensuring correct grounding.

Step 5: Set pressure range and differential as required.

Step 6: Restore gas, test for leaks, and verify safe operation.