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The Lennox 60G78 Heat Exchanger is an OEM M-style tubular heat exchanger designed for critical thermal transfer in Lennox packaged rooftop units and high-capacity residential furnaces
it ensures a secure air sampling connection for consistent set-point reliability
ensuring positive closure and positioning under high-demand conditions
ensuring stable operation under high-side pressure
Utica-Dunkirk 127000007 Fan Cycling Switch 326058-757 The Lennox 60G78 Heat ExchangerThe Utica Dunkirk 127000007 Fan Cycling Switch is a critical OEM component designed for high precision head pressure control in Dunkirk and Utica boiler systems. Engineered for reliability in hydronic heating applications, this pressure actuated switch monitors system temperature and pressure to cycle the fan, preventing rapid short cycling and maintaining optimal combustion efficiency. By regulating fan operation, the 127000007 ensures that the heat
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