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Dungs Pressure Switches 266943 Gas Pressure Switch M/R 12-60" WC

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Special Price $139.26 Regular Price $160.15
Out of stock
SKU
266943
The Dungs Pressure Switches 266943 Gas Pressure Switch, model GML-A2-4-6 is used for HVAC systems. It operates within a pressure range of 12-60 inches of water column and has a manual reset. It is well suited to applications such as furnace and boiler control where accurate valve operation is required for operation safety. It improves system safety and performance by selectively activating or deactivating circuits in response to pressure fluctuations. It has a small size that makes installation easy and its NEMA 4 housing shields it from environmental conditions making it ideal for industrial and commercial heating.
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HVAC Controls & Electrical, Switches, Pressure Switches
Manufacturer:
https://www.partshnc.com/media/catalog/product/2/6/266943_dungs-pressure-switches_partshnc.jpg

Specifications

  • Type: Gas Pressure Switch
  • Pressure Range: 12-60" WC
  • Reset Type: Manual Reset
  • Model: GML-A2-4-6
Manufacturer Name: Dungs Pressure Switches
Product Number: 266943
OEM Part Number: 266943
Product Description: 12 - 60 Inch Wc M/R Gas Switch
Weight:0.55lbs/249.48g

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Product Questions (2)
Customer Questions
What maintenance is required for the Dungs 266943 Gas Pressure Switch?

Regularly inspect the switch for dust, debris, or corrosion on terminals. Ensure proper mounting and secure connections. Test pressure settings periodically to confirm accuracy. Follow safety guidelines to avoid gas leaks or electrical hazards during checks.

What are common issues with the Dungs 266943 Gas Pressure Switch?

  • Pressure setting drift over time.
  • Switch failing to activate at set pressure.
  • Electrical contact wear or corrosion.
  • Pressure fluctuations causing intermittent operation.

Installation Steps

Step 1: Shut off gas supply and power, verify zero pressure.

Step 2: Mount switch in correct orientation on vibration-free surface within rated range.

Step 3: Connect pressure sensing lines to inlet and outlet ports securely.

Step 4: Wire electrical contacts per schematic, ensure grounding.

Step 5: Check for leaks with soap solution, then restore pressure gradually.

Step 6: Test trip setpoint and confirm safe operation.