12V Air Conditioner for Bus
As an independent parking temperature control system, the 12V Air Conditioner for Bus is a key device for improving the economic efficiency and passenger comfort of bus operations. It allows the bus to continue providing cooling or heating for an extended period using its onboard battery after the engine is turned off.
Busclima engineers state that, taking the industry-leading DC BUS Air Conditioner E-Clima3000 as an example, this series uses environmentally friendly R134a refrigerant, with the outdoor unit weighing approximately 35 kg. It has passed rigorous automotive-grade vibration, waterproofing, and high/low temperature tests to ensure reliable operation in harsh environments.
| Model | E-Clima2200 | E-Clima3000 | E-Clima4000 | E-Clima6000 | E-Clima8000 | E-Clima2600S |
| Voltage (V) |
DC12V/24V | DC12V/24V | DC12V/24V | DC12V/24V | DC12V/24V | DC12V/24V |
| Cooling Capacity (W/BTU) |
2200W//7500 | 3000W/10000BTU | 4000W/15000BTU | 6000W/20472BTU | 8000W/27300BTU | 2600W/78870BTU |
| Installation | Rooftop Mounted | Rooftop Mounted | Rooftop Mounted | Rooftop Mounted | Rooftop Mounted | Split Mounted |
| Evaporator Air Volume (m³/h) |
650 | 700 | 650 | 650 | 1500 | 450 |
| Condenser Air Volume (m³/h) |
1050 | 1400 | 1050 | 1700 | 3600 | 1400 |
| Refrigerant | R134a | R134a | R134a | R134a | R134a | R134a |
| Dimension (mm*mm*mm) |
700*580*263 | 885*710*290 | 700*580*263 | 1580*385*180/ 920*928*250 |
1260*1030*180 | 682*465*192 540*362*165 |
| Weight (KG) |
32 | 35 | 18/47 | 18/47 | 31 |
Busclima engineers explain that the 12V Air Conditioner for Bus must meet the environmental control requirements of the vehicle while it is parked.
It provides a comfortable resting environment for the driver during waiting periods or shift changes, ensuring driving safety.
At bus terminals and long-distance passenger transfer points, it pre-adjusts the cabin temperature to enhance passenger comfort upon boarding.
Widely used in RVs, campervans, and special-purpose vehicles requiring independent living or working spaces.

Busclima engineers say the 12V Air Conditioner for Bus is suitable for public transportation companies, tourism and rental companies, or individual vehicle owners and RVs.
Public transportation companies: Focus on operating costs and compliance, needing to avoid fines and fuel consumption due to idling with the air conditioning on.
Tourism and rental companies: To improve the service quality and competitiveness of high-end charter buses and tour buses.
Individual vehicle owners and RV users: Emphasize ease of installation and economic efficiency, meeting personalized travel needs.
Busclima engineers say that choosing multiple 12V Air Conditioners for Bus can bring multiple benefits to operators and users:
Economical and energy-saving: Powered by an independent battery after parking, achieving “zero fuel consumption and zero emissions,” significantly reducing operating costs. Its inverter technology is also more energy-efficient than traditional air conditioners.
Safe and Reliable: Equipped with multiple safety features including low-voltage protection and overload protection, preventing excessive battery discharge that could prevent the vehicle from starting. It is also specifically designed for vehicle vibration environments, ensuring high durability.
Comfortable and Quiet: Full DC inverter technology enables rapid temperature adjustment and stable operation. The separate indoor and outdoor unit design places the noise source (compressor) outside the vehicle, improving cabin quietness.
From a technical patent perspective, the future trend is towards more integrated and intelligent rooftop integrated heat pump air conditioners. These combine cooling and heating functions, offer higher energy efficiency, and incorporate more sophisticated intelligent control and fault diagnosis systems.

















