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Lochinvar & A.O. Smith 100208384 Pressure Switch 0.85" WC

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Special Price $51.45 Regular Price $59.17
In stock
SKU
100208384
The Lochinvar & A.O. Smith 100208384 Pressure Switch is a mechanical control tool that is used to check the air or gas pressure in the heating and hot water systems. Adjusted to operate at 0.85 inches of water column, it opens or closes an electrical circuit when the system pressure is at its set point. This switch is placed in furnaces, boilers, or combustion air assemblies to ensure that the airflow or draft is correct before it can be ignited or any other process can be carried out.
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HVAC Controls & Electrical, Switches, Pressure Switches
Manufacturer:
https://www.partshnc.com/media/catalog/product/1/0/100208384.jpg
Manufacturer Name: Lochinvar & A.O. Smith
Product Number: 100208384
OEM Part Number: 100208384
Product Description: 0.85"Wc Pressure Switch
Weight:0.16lbs/72.57g

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Product Questions (2)
Customer Questions
What maintenance is required for the Lochinvar & A.O. Smith 100208384 Pressure Switch?

Regularly inspect the pressure switch and tubing for blockages, cracks, or loose connections. Ensure electrical terminals are secure and free of corrosion. Routine checks help maintain accurate pressure sensing and safe operation. Always disconnect power before performing any servicing.

What are common issues with the Lochinvar & A.O. Smith 100208384 Pressure Switch?

  • Failure to open or close at set pressure.
  • Blocked or damaged sensing tubing.
  • Electrical contact wear or failure.
  • Inconsistent or erratic switching behavior.
  • Pressure calibration drift over time.

Installation Steps

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

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

Step 3: Install the new pressure 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.