Description
The Carrier KHAIR0201AAA Isolation Relay Kit is a control component designed to provide electrical separation between low-voltage control signals and higher-voltage equipment circuits. It is installed within HVAC systems to allow safe communication between thermostats, air handlers, and condensing units. This relay kit helps manage signal transfer while reducing the risk of electrical feedback or damage to sensitive control boards. The system’s control architecture, it ensures proper coordination between connected components, supporting stable operation and protecting internal electronics from irregular voltage conditions.









