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While it can be wired for single-circuit use
Using the OEM York pressure switch is recommended to ensure the specific inches of water column calibration matches your unit's safety profile
the B213B is specifically rated for hot and chilled water systems
When used with compatible crank arm kits
ensuring a direct fit for older V5011 and V5013 models
Lennox 58J97 Flare Kit Refrigerant While it can be wiredThe Lennox 58J97 Flare Kit (also cataloged as 58J9701) is a critical TXV Flare Adapter Kit engineered for high pressure refrigerant line connections in residential and light commercial HVAC systems. This genuine OEM Lennox part, also identified by model number LB 86210A, provides the necessary components to transition from standard flare fittings to thermostatic expansion valve (TXV) ports without requiring manual brazing or specialized field