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Lennox 42W94 Transformer 460V To 24V 70VA

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Special Price $144.21 Regular Price $165.84
In stock
SKU
42W94

The Lennox 42W94 is an essential part of many HVAC systems including furnaces and air conditioning systems. It serves as a Class 2 transformer which enables it to safely convert a high voltage incoming power of 460V to a lower voltage of 24V suitable for the control circuits of the HVAC system. This is useful in protecting fine electrical components from being destroyed by supplying them with the right voltage. It has leads and quick connections for easy making of electrical connections.

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Specifications

  • Measure: Unit
  • Voltage: 460V-24V
  • Weight: 2.64lbs
  • Amperage: 3.2 Amp
  • Type: Class 2 Transformer
  • Mounting Type: Foot Mount
  • Protection Type: 3.5 Amp Circuit Breaker
  • Connection Type: Leads and Quick Connects
Manufacturer Name: Lennox
Product Number: 42W94
OEM Part Number: 42W94
Product Description: 460V -> 24V 70Va Transfomer
Weight:2.64lbs/1197.48g

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Product Questions (2)
Customer Questions
What maintenance is required for the Lennox 42W94 Transformer?

Inspect wiring, terminals, and mounting; tighten connections and remove dust buildup regularly. Regular inspection ensures stable voltage output and prevents HVAC electrical failures. Always disconnect power before servicing to avoid electrical shock hazards.

What are common issues with the Lennox 42W94 Transformer?

  • Overheating due to load or poor ventilation.
  • Voltage drop or unstable output.
  • Primary or secondary winding failure.
  • Humming or buzzing noise from core.
  • Loose or corroded electrical connections.
  • Insulation breakdown causing short circuits.

Installation Steps

Step 1: Turn off main electrical supply before starting.

Step 2: Remove old transformer and note wiring positions.

Step 3: Place new transformer in mounting location securely.

Step 4: Connect input leads to primary terminals.

Step 5: Connect output leads to secondary terminals.

Step 6: Tighten all connections firmly and check insulation.

Step 7: Restore power and check output voltage stability.