ACX-10 - Air Conditioning Life Extender ACX-10 Maintains Your Cool Prevents rapid cycling under improper pressure conditions. Extends life of clutch, compressor, and hoses. Prevents premature damage to clutch coil and plates. Reduces stress on starter motor and batteries. Installs quickly and easily with a few simple connections. Provides rapid payback in maintenance cost savings. Detection and Protection System The ACX-10 detects rapid cycling before you even notice that your air conditioning isn’t working properly.  As your A/C system charge levels drop, clutch cycles increase.  The ACX-10 limits A/C clutch cycles to four engagements per minute, reducing system wear and tear. Pressure Protection Improper system pressure can lead to rapid cycling. The ACX-10 limits system cycles to four engagements per minute, eliminating heat build-up. Voltage Protection Over-voltage causes excessive current and heating the clutch coil, which shortens its life.  Worse yet, under-voltage can cause the clutch to slip and burn out. The ACX-10 detects poor voltage conditions, and disengages the A/C clutch until the voltage returns to the normal, safe operating range. Bonus: Starter Motor Protection If the A/C is on during the vehicle’s ignition cycle, the starter motor has to crank the compressor as well as the engine. The ACX-10 unburdens the starter motor and extends its life by delaying the A/C clutch engagement until 15 seconds after ignition.