Aprilaire 4977 Relay 320734-701 Variable Speed Efficiency: Maintains constant

Variable Speed Efficiency: Maintains constant torque to improve humidity control and reduce energy consumption

This assembly is built with a lead-free copper silicon alloy body to meet strict potable water standards while providing superior corrosion resistance

This model includes a PG9 pilot adapter and a Tinnerman clip

the HCAE-3-VX100H utilizes an external equalizer to accurately sense pressure at the evaporator outlet

Where is the Carrier HH79NZ101 typically located

Aprilaire 4977 Relay 320734-701 Variable Speed Efficiency: Maintains constantThe 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