The Phillips & Temro Idle Free Series 5000 eAPU is designed to keep drivers comfortable in hot climates. The series uses proven compressor technology combined with a wall mounted evaporator that delivers over 300 cfm airflow and can maintain an average cabin temperature of 68 degrees F in an ambient temperature over 100 degrees. The system offers proprietary automatic start-stop technology that starts the engine when the APU batteries need to be charged, making a 34 hour reset period possible with an all-electric APU. The Idle Free 5000 has a slim, low-profile design containing a compressor and condenser that mounts to the back of the cab, preserving frame rail and under bed space.