The Utica-Dunkirk PB-011

This model is technically identical to the 2815-001 and 2815-002

For technicians troubleshooting HVAC safety controls

which will quickly damage a new standalone motor

For contractors performing a Bard HVAC compressor replacement

Lennox 13H78 Relay 322055-301 The Utica-Dunkirk PB-011The Lennox 13H78 Relay is a heavy duty 24V DPDT relay engineered for precise switching control within Lennox heating and cooling systems. Built to handle dual circuit switching, this double pole double throw relay manages various voltage pathways simultaneously, ensuring consistent communication between the thermostat and high voltage components like blower motors or compressors. Operating at a standard 50 60 Hz frequency, the 13H78 is a critical HVAC