THE ACU-804 60-Ton Air Conditioner Unit is a self contained, fully portable air conditioning unit suitable for single connection aircraft throughout the world. The ACU-804 has sufficient capacity to achieve and maintain comfortable cabin temperatures on any narrow or medium bodied aircraft in any climate. The simple but rugged design consists of a diesel engine directly driving for refrigeration compressor and blower. This is the unique “TLD Direct Drive” technology. Additionally, a hydraulically driven condenser fan exhausts waste heat directly upward making it immune to performance fluctuations due to varying wind conditions and minimizing heat and noise radiated to the immediate ramp area.