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This is the recommended direct replacement
The KMC Controls SSS-1003 Sensor is a professional-grade differential pressure flow sensor designed for high-accuracy airflow monitoring in Variable Air Volume (VAV) terminal units
Replacing these internal components during scheduled maintenance is far more cost-effective than a total valve swap and significantly reduces potential downtime
reducing compressor load and improving system stability
Aprilaire 4977 Relay 321894-706 This is the recommended directThe 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
US$ 60.00
US$ 49.00
US$ 150.00
US$ 19.99
