Facebook Pixel

Weil McLain 511-624-521 SPST Pressure Switch 1.25" WC

Special Price $79.37 Regular Price $91.27
In stock
SKU
511-624-521

The Weil McLain 511-624-521 1.25 Inch Wc SPST Pressure Switch is essential in HVAC systems, notably boilers and water heaters, since it monitors system pressure to ensure optimal performance and safety. Utilizing a single-pole, single-throw mechanism, it recognizes variations in pressure and adjusts the system's activation or deactivation accordingly. Installed inside the system, it serves as a buffer against high pressure accumulation, averting any harm or failure. This pressure switch provides dependable operation and is compatible with multiple Weil McLain types as well as other HVAC equipment. The Weil McLain 511-624-521 pressure switch is crucial for monitoring and controlling HVAC systems, improving both safety and efficiency.

https://www.partshnc.com/media/catalog/product/0/0/0011323_0_3.jpg
Manufacturer Name: Weil McLain
Product Number: 511-624-521
OEM Part Number: 511-624-521
Product Description: 1.25"Wc Spst Pressure Switch
Weight:0.33lbs/149.69g

Choose the best HVAC equipment parts and supplies from PartsHnC!

  • Same Day Shipping

  • Best Quality And Best Price

  • Wide Range of Inventory

  • Best Customer Service

Have More Questions or Need Help to Place The Order?
Reach us at (866)773-0907 or [email protected]

Write Your Own Review
You're reviewing:Weil McLain 511-624-521 SPST Pressure Switch 1.25" WC
Your Rating
Customer Questions
What maintenance is required for the Weil McLain 511-624-521 Pressure Switch?

Regularly inspect the switch for dust, debris, or corrosion on contacts. Test its operation to ensure accurate pressure activation. Keep connections tight and clean to prevent malfunctions. Always disconnect power before performing any maintenance.

What are common issues with the Weil McLain 511-624-521 Pressure Switch?

  • Failure to activate at set pressure.
  • Corroded or worn contacts.
  • Intermittent switching or false triggering.
  • Air or vacuum line blockages.

Installation Steps

Step 1: Turn off power to the HVAC system to prevent electrical hazards.

Step 2: Remove the old pressure switch from its tubing and mounting.

Step 3: Install the new switch securely in place.

Step 4: Connect the tubing to the switch port, ensuring a tight seal.

Step 5: Reconnect wiring according to the system diagram.

Step 6: Restore power and test to confirm proper operation.