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This Johnson Controls HVAC part is the standard for maintaining reliability in demanding ventilation applications
making it suitable for most commercial condensing unit control circuits
Common Questions & Installation Tips: What refrigerants are compatible
The Schneider Electric (Barber Colman) TA-1101 is a commercial-grade
which is critical for preventing hot spots and optimizing system SEER ratings
Lennox 13H78 Relay 320074-702 This Johnson Controls HVAC partThe 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
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