Corunclima Fully DC electric air conditioner AC100TB installed on engine buses
The Corunclima AC100TB is a built-in fully DC electric air conditioner designed for engine-powered buses, bringing a transformative cooling solution that breaks away from traditional engine-driven air conditioning systems. Unlike conventional setups that rely on belt-linked mechanical compressors driven by the vehicle engine, this all-electric unit requires no mechanical engine compressor installation at all. It operates independently on DC power, separating cooling performance from engine running status completely, which delivers outstanding economic benefits and stable cooling experience for passenger transport fleets.
Boasting a 9.2kW cooling capacity, the AC100TB adopts an integrated monoblock structure, factory pre-charged with R134A refrigerant. It supports multiple DC voltage options including DC24V and high-voltage DC 400–560V, making it compatible with most fuel-powered minibuses, shuttle buses and light passenger vehicles. The built-in design saves cabin space and simplifies the whole installation workflow. Technicians only need to fix the rooftop unit and complete wiring connection, without complicated engine modification, belt adjustment or compressor matching work. This greatly cuts installation labor time and reduces the risk of later mechanical failures caused by mismatched refitting.
The biggest advantage of AC100TB lies in remarkable fuel saving and lowered maintenance burdens. With the Corunclima fully DC electric design, the air conditioner can run steadily even when the engine is shut down. It eliminates idling fuel waste, reduces engine load during operation and extends the service cycle of engine parts such as belts, bearings and pulleys. Fleet operators will see obvious drops in fuel expenditure and engine maintenance fees, effectively lowering long-term overall operation costs.
Besides economic gains, the AC100TB improves riding comfort significantly. It runs with lower vibration and less noise than engine-driven AC systems, creating a quieter cabin environment for passengers. The intelligent temperature control system maintains consistent cooling output, unaffected by engine speed fluctuation. Whether in slow city traffic, stationary waiting or long-distance highway trips, it keeps the cabin temperature steady in hot weather.
Corunclima’s AC100TB is a practical upgrade choice for minibus operators chasing profitability and reliability. It removes the dependency on engine compressors, cuts fuel consumption and maintenance workload, and offers dependable, quiet cooling for passenger cabins.
