SONGZ ESA Series Electric Bus Air Conditioner

ESA series new energy bus air conditioning is a kind of roof mounted air conditioner, with single air return area, and with different models to apply for the electric buses from 6m to 8m.

Product Details

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Technical Specification of Electric Bus A/C LMD Series

Model		LMD-III		LMD-IV		LMD-V		LMD-VI
Recommended Bus Length(m)		8-8.8		8.9-9.4		9.5-10.4		10.5-12
Refrigerant		R134a/R1234yf	R407C	R134a/R1234yf	R407C	R134a/R1234yf	R407C	R134a/R1234yf	R407C
Cooling Capacity	Standard	10 kW	16 kW	12 kW	18 kW	14 kW	20 kW	17 kW	22 kW
Cooling Capacity	Maximum	15 kW	24 kW	17 kW	26 kW	22 kW	32 kW	29 kW	37 kW
Heat Pump Heating Capacity		13 kW	18 kW	15 kW	22 kW	18 kW	26 kW	20 kW	28 kW
Ultra-low Temperature Heat Pump Capacity		NA	22 kW	NA	25 kW	NA	30 kW	NA	31 kW
Roof	Dimension (mm)	2700×1900×262		3300×1900×262		3300×1900×262		3300×1900×262
	Weight	260 kg	260 kg	309 kg	305 kg	316 kg	310 kg	322 kg	350 kg
	Air Flow Volume Condenser	6000 m3/h (3)		8000 m3/h (4)		8000 m3/h (4)		10000 m3/h (5)
	(Fan Quantity)	6000 m3/h (3)		8000 m3/h (4)		8000 m3/h (4)		10000 m3/h (5)
	Air Flow Volume Evaporator	4400 m3/h (4)		4400 m3/h (4)		6600 m3/h (6)		6600 m3/h (6)
	(Blower Quantity)	4400 m3/h (4)		4400 m3/h (4)		6600 m3/h (6)		6600 m3/h (6)
PTC Heating Capacity		10 kW		14 kW		16 kW		16 kW
Cooling Power Consumption		6.4 kW		7.2 kW		8 kW		9.6 kW
Heating Power Consumption		5.6 kW		6.4 kW		7.2 kW		8.7 kW
PTC Power Consumption		10 kW		14 kW		16 kW		16 kW
BTMS Cooling Capacity Max		1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)
（When the e-bus stops and recharge）		1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)	1~7 kW(adjustable)	1~10 kW(adjustable)

Product Detail

SONGZ LMD Series Electric Bus Air Conditioner (2)

Features

Intelligent Modular Platform Design (SONGZ SIEMA1 Platform)

Enables modular design and combination of key components including compressor units, electrical control systems, evaporators, condensers, and integrated battery thermal management. Features high-efficiency and reliability through optimized system integration.

Lightweight & Compact Design

Adopts windward condenser structure without bottom shell, reducing overall weight and volume. Windward installation with fan layout optimized via CFD simulation leverages vehicle driving airflow to enhance operational efficiency.

Centralized Maintenance-Friendly Layout

Compressor and electrical control units centrally positioned for quick access and servicing. Aerodynamic streamline design enhances aesthetic appeal while minimizing wind resistance.

High-Security Electrical System

Aluminum alloy enclosure for electrical components ensures IP54/IP67 protection against dust, water ingress, and fire hazards. Features reverse-polarity protection and proprietary insulation design for enhanced safety.

EMC Compliance & Certification

Meets GB/T 18655 Class 3 electromagnetic compatibility standards. Proprietary insulation technology ensures reliability and safety, with EU standard certification for international compliance.

Adaptive Variable-Frequency Technology

Utilizes intelligent frequency modulation based on real-time environmental conditions. Premium models feature electronic expansion valves for precise temperature control, energy savings, and enhanced passenger comfort.

Functions Upgrade(Optional)

In addition to the basic functions of refrigeration, heat pump heating and ventilation, the product can also upgrade the following functions according to customer and environmental requirements:

01 /

Ultra-low temperature heat pump heating function

realize -15 ℃ to meet the heat load of the whole vehicle, and -25 ℃ continuous heat pump operation.

02 /

Self-developed Dedicated Inverter-Driven Gas Injection Control Technology

Enables the air conditioning system to achieve high energy efficiency at -20°C, meeting vehicle thermal load demands, while sustaining continuous operation in ambient temperatures as low as -35°C.

03 /

Innovative development of two-stage compression engineering prototype

which can achieve stable operation at -35℃.

04 /

Integrated battery thermal management function

outputting 3-10kw battery cooling capacity according to customer requirements without affecting the cooling effect of the vehicle.

05/

Air purification function

including four functions: electrostatic dust collection, ultraviolet light, strong ion generator, and photo catalyst filtration, to achieve sterilization, odor removal and efficient dust removal, and effectively block the transmission of viruses.

06/

"Cloud control" function

realize remote control and diagnosis, and improve product service and monitoring capabilities through big data application.

07/

PTC electric heating

according to different configurations and ambient temperature, start PTC in time, assist heating, and realize heating in the full temperature range.