Common Questions Is the HH22AK066 compatible with older 24V control circuits

though a common (C) wire is required for constant power to the backlit display and logic board

ensuring broad compatibility across various Trane and American Standard terminal units

providing high starting torque with improved efficiency compared to split-phase alternatives

Hartland Controls CON-2/120/40 Contactor 318518-761 Common Questions Is the HH22AK066The Hartland Controls CON 2 120 40 Contactor is a duty specific 2 pole definite purpose contactor engineered for rigorous service in residential and light commercial HVACR equipment. This 40 amp contactor is built with high grade silver cadmium oxide contacts to minimize pitting and ensure consistent conductivity across inductive and resistive loads. Designed with a 120V 50 60Hz coil, it serves as a reliable HVAC replacement part for managing