Double Decker Bus Air Conditioner
Double Decker Bus Air Conditioner
Double Decker Bus Air Conditioner

Double Decker Conventional Bus A/C- TKT-550ED

> Cooling Capacity: 55KW
> Voltage: DC280-750V
> Comoressor: Sanyao 80.5cc/r
> Condenser and Upper Evaporator:2000*750*1405mm
> Lower Evaporator :800*600*833mm
Double Decker Bus Air Conditioner TKT-550ED Introduction:

Double Decker Bus Air Conditioner TKT-550ED Introduction:

With the popularity of green energy, TKT has been dedicated to creating economical and comfortable bus air conditioning systems for electric buses, trams, trolleybuses, hybrid buses, etc. TKT-550ED is designed for 12M buses.

Cooling Capacity

55 kW


Sanyao 80.5cc/r


R410A//7 KG(On-site Filling)

Condenser QTY/Air Flow


Evaporator QTY /Air Flow


Power Supply/Rated Power

High-voltage Power Supply:DC450V-780V

Control Power Supply:DC24V/10A


Condenser and Upper Evaporator:2000*750*1405mm

Lower Evaporator :800*600*833mm


Condenser and Upper Evaporator:320KG

Lower Evaporator:36KG

Product Standard

GB/T21361-2008(A/C for Automotive)&TB/T1804 2003(A/C for Railway Coach)

Safety Reference Standard

CJ/T 5007 Technical requirements for trolleybuses 

CJ/T 5008 Test methods for trolleybuses 

GBT 18384.3-2015 Safety Requirements for Electric Vehicles 

Personnel Protection against Electric Shock

Condenser and Upper Evaporator:

 Lower Evaporator:

Electric bus air conditioning Main features:
Electric bus air conditioning Main features:
Environmentally friendly. (The all-electric air conditioner is powered by the battery pack, zero fuel consumption and zero emission; it adopts environmentally friendly refrigerants such as R134A and R407C, which can save about 20% of gas cost).
High cooling efficiency and large cooling capacity ensure rapid cooling even when the ambient temperature is as high as 55°C, creating a comfortable cabin environment for passengers and drivers. Different cooling mode options provide customers with more choices to meet all cooling requirements.
High vibration resistance ensures that the air conditioner can be used in different road conditions, a feature that has been proven in the Indian market over the past 4 years.
Light weight and small size. Even the largest 12m EV model is no more than 3.2m in size, which greatly reduces the weight of the vehicle, improves the safety of the vehicle, and helps to increase the capacity and mileage of the EV.  
Safety protection mechanism. More fuses and good quality electrical components are used to withstand high voltage; multiple protection mechanisms such as high voltage protection and low voltage protection are used to protect the AC system well.
OEM/ODM/customization is acceptable.
3-8 years warranty depending on bid requirements.
Proven quality and performance in over 85 countries with service centers in over 50 countries.

TKT Advantage:
Designed 6 Condenser Fan to Guarantee the Fast Cooling even Ambient  Temperature is more than 55 Deg. C
Exclusive Design of Condenser Coil Structure with Design Patent to Get More Heat Release Area but Using Less Material
Adopting R410A Refrigerant to Achieve Super Cooling
Running in China for 5 Year with ZERO Failure Rate
Electric bus air conditioner design introduction:
Electric bus air conditioner design introduction:

1. Electric bus air conditioner structure :

   The structure of electric bus air conditioner mainly includes condenser assembly, evaporator assembly, electric compressor assembly, and other important parts such as DC-DC, inverter, electric control box, expansion valve, oil separator, CAN controller panel, blower, fan, air grille, etc.

2. Design advantages:

TKT has an exclusive design of condenser coil structure with design patent. It can obtain more heat release area and use less material, which is known as the "highest heat exchange efficiency" design in China.
TKT uses high quality internally threaded copper tubes and hydrophilic aluminum fins to make condenser and evaporator coils. Such material is more corrosion resistant, more suitable for use in coastal countries, and has a longer life span (more than 10 years) than parallel flow coils (made of pure aluminum).
TKT adopts the best compressor in the Chinese market, which has been proven in the market for 8 years, ensuring reliable and superb refrigeration performance.
TKT adopts advanced CAN control + integrated digital control panel control, which has much lower failure rate than PLC control.

As an expert and leading manufacturer of electric bus air conditioners in China, TKT has supplied to major Chinese bus manufacturers such as Yutong, Golden Dragon, Yaxing, Ankai, Neoplan, Hengtong, Shenlong, Foton and Nanjing Golden Dragon, and has done OEM for TATA Motor, TATA Marcopolo, Daewoo, Isuzu, MAZ, INCARVEN, MODABUS and GET and other world These rich experiences and more than 10 years of market validation have proven that TKT air conditioners are trustworthy. We currently offer rooftop all-electric bus air conditioners E series mainly for 6-12m buses for DC250V-DC750V bus input, please choose the right model for your electric bus according to the vehicle length!

PS: OEM items for other lengths of electric buses are also available!


OEM/ODM Process
During the passed 24 years, TKT grows to the 100% OEM choice in China, for both bus A/C and truck refrigeration units, such as Yutong, Nanjing Golden Dragon, Xiamen Golden Dragon ect (Bus A/C), CIMC, Xinfei, Hongyu ect (Truck Refrigeration units). For the international market, TKT is the OEM for TATA Motors, TATA Marcopolo Motors, Daewoo ect, and exported to more than 85 countries with sales and service center.

If you are interested in working with TKT, please feel free to contact us.

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