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the 80K28 is technically identical to 80K2801 and serves as the direct OEM replacement pressure switch for several Lennox-family brands
serving as the direct professional replacement for the legacy CRDS05 model
Optimized Efficiency: Maintains the specific pressure drop required to meet the unit's original SEER ratings and performance specs
the valve can be disassembled in-line for maintenance without cutting copper
Can I use a 115V motor to replace this unit
Aprilaire 4977 Relay Freon the 80K28 is technically identicalThe Aprilaire 4977 Relay is a high performance 24v Coil DPDT Relay designed for seamless integration within advanced HVACR systems. This versatile double pole double throw relay serves as a critical HVAC control component, allowing for the simultaneous management of two independent circuits. Engineered for Aprilaire humidifiers and air cleaners, this 24 volt switching relay ensures precise electrical isolation and reliable secondary hardware
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