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Williams Comfort Products P500472 Vent Limit Switch Manual Reset L280

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Special Price $58.66 Regular Price $67.46
In stock
SKU
P500472
The Williams Comfort Products P500472 Vent Limit Safety Switch operates as a manual reset safety switch that protects HVAC systems from overheating conditions. It operates at 280°F to monitor vent system temperatures and automatically shuts off the system when temperatures reach the programmed threshold. The gas-fired heating system incorporates this safety switch to stop heat damage. The safety switch features a manual reset operation that enables operators to restart the system after it has cooled down. The improves safety measures by maintaining system efficiency in HVAC equipment.
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Williams Heater Parts, HVAC Controls & Electrical
Manufacturer:
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Specifications

  • Type: Vent Limit Safety Switch
  • Temperature Rating: 280°F
  • Reset Type: Manual Reset
  • Application: Vent Safety Control
Manufacturer Name: Williams Comfort Products
Product Number: P500472
OEM Part Number: P500472
Product Description: Vent Limt Switch L280 M/R
Weight:0.05lbs/22.68g

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Product Questions (2)
Customer Questions
What maintenance is required for the Williams Comfort Products P500472 Vent Limit Switch?

Inspect switch for corrosion, dust, and secure mounting. Check wiring for tight, undamaged connections and test response during operation. Clean vent area to ensure accurate airflow sensing and efficient safety shutdown.

What are common issues with the Williams Comfort Products P500472 Vent Limit Switch?

  • Failure to activate due to a faulty sensing mechanism.
  • Intermittent operation from loose wiring connections.
  • Corrosion on terminals causing poor electrical contact.
  • False shutdowns from incorrect airflow detection.
  • Restricted venting leading to system lockout.

Installation Steps

Step 1: Turn off HVAC power at breaker to ensure safety.

Step 2: Access vent/limit switch panel and remove cover carefully.

Step 3: Disconnect wiring from old switch noting terminals.

Step 4: Remove mounting screws and take out faulty switch unit.

Step 5: Install new switch in same orientation and position firmly.

Step 6: Reconnect wires securely to correct terminals as labeled.

Step 7: Restore power, test airflow operation, and press reset button if tripped.