This includes installing a condenser Hard Start relay into unit. This will reduce the starting amperage of unit and prevent over amping the compressor motor or the fan motor. Since the compressor draws so much power at once, most houses lights will dim and flicker sometimes due to high power consumption. Installing this kit will lengthen the life of the motors in your unit. As well as save you from excessive power draw on your house. 07/22/2020. Installed 3.5-5 ton 3 wire hard start kit and relay. System is running more efficiently now. Installed tamper proof locking refrigerant caps onto lineset to prevent dirt buildup inside valves as well as to prevent someone from tampering with systems refrigerant.