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The Lennox 21J29 Start Capacitor is a heavy-duty 270-324 MFD 330V round electrolytic component engineered to provide the high-torque boost required during the initial compressor startup phase
it eliminates the compatibility risks associated with universal motors by maintaining the precise static pressure requirements of the original equipment
Designed to facilitate the secure mounting and fluid rotation of damper blades
Serving as the direct replacement for the legacy R72DB0004
Lennox 49M50 Pressure Switch R-134A The Lennox 21J29 Start CapacitorThe Lennox 49M50 is a high performance HVAC high pressure switch designed for critical system monitoring in residential and commercial cooling applications. This genuine OEM Lennox pressure switch functions as a primary safety control, specifically calibrated for a 640 psig cut out (C O) threshold. When refrigerant pressures exceed this safety limit, the switch breaks the electrical circuit to the compressor, preventing catastrophic component failure