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The Rheem-Ruud 42-105601-106 Pressure Switch Kit is a critical OEM safety component designed for precise furnace air pressure monitoring and combustion control
including specific Marley and Berko units
or elements that fail to engage at all while the blower is running
Key Benefits Broad Compatibility: Primarily engineered for the Honeywell V5097 Series Large Body valve bodies (2" to 3" pipe sizes)
Lennox 86K78 Relay Kit Els PW 17895 The Rheem-Ruud 42-105601-106 Pressure SwitchThe Lennox 86K78 Relay Kit is a critical 24v 3PDT relay kit engineered for precise switching in professional HVACR systems. As a triple pole double throw relay, this component is designed to manage complex electrical sequences, commonly serving as a defrost relay kit in heat pump configurations. Technicians often source this part when diagnosing issues with compressor control signals or outdoor coil frost management. This genuine OEM assembly ensures