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The Rheem-Ruud 42-21268-04 Door Switch is a critical safety component designed for precise interlock control in residential and commercial furnaces and air handlers
including YVAA and YVFA models
maintaining the pressure vessel's integrity is paramount to prevent live steam loss and maintain flash tank efficiency
which are critical for electric motor longevity
Emerson Alco 097719 Control Valve 322056-301 The Rheem-Ruud 42-21268-04 Door SwitchThe Emerson Alco 097719, also known as the EX4 I21, is a high performance stepper motor driven electrical control valve engineered for precise refrigerant mass flow management. Designed for veteran contractors, this bipolar stepper motor valve provides continuous modulation across a 10% to 100% capacity range, making it ideal for superheat control, hot gas bypass, and liquid injection. Featuring a 3 8" x 5 8" sweat ODF connection and a 24Vdc supply
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