Zhengzhou Cling · Vehicle HVAC and thermal management

What this manufacturer offers

郑州科林车用空调有限公司 (Zhengzhou Cling Air Conditioning Co., Ltd.) builds air conditioning and thermal-management equipment for buses and other vehicles. The registration gives 27 September 2003 as the founding date and 8 Changchun Road, Zhengzhou High-tech Development Zone as the address. Cling's company profile says September 2003, its contact page lists the same address, and the legal footer carries the same Chinese name, so the brand and the company match.

The range falls into four groups: electric heat-pump bus air conditioning, traditional bus cooling, integrated passenger and battery thermal systems, and independent battery cooling assemblies. Cling publishes photographs of assembly, brazing and several test laboratories. A January 2025 environmental approval covers a component-process upgrade and a cleaning-wastewater project at the plant, and a November 2025 district-government report lists Cling among newly recognised specialised enterprises. For a quotation, send the vehicle architecture and thermal loads, and ask for the selected model's performance map, current approvals and the production slot for your order.

Legal company

郑州科林车用空调有限公司; registered 27 September 2003The company profile says September 2003; brand and legal footer carry the same name. Source

Address

8 Changchun Road, Zhengzhou High-tech Development Zone, HenanRegistered and published addresses are identical. Confirm it as the site for factory visits and the contract. Source

Published process capability

Assembly, heat-exchanger production, fan production; NOCOLOK brazing, tube expansion and ultrasonic cleaningFrom Cling's strength page and its process photographs. Ask for the line that builds your unit and its throughput. Source

Published test areas

NVH, enthalpy-difference, environmental/vibration and mechanical testingShown in laboratory photographs. Ask for accreditation and calibration records if your project needs them. Source

2025 environmental approval

Component-process technology upgrade and cleaning-wastewater-treatment project; 郑高环审〔2025〕4号, 21 January 2025A conditional project consent. Ask for the later acceptance record if it matters to you. Source

Dated recognition

District report names Cling in the 2025 seventh-batch specialised Little Giant recognitionGovernment article published 11 November 2025; it recognises the company, not individual models. Source

Published equipment and selection data

series REFERENCE

Cling EFDR independent glycol cooling

Catalogue reference: EFDR-01 / 02 / 03 / 04

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Parameters and source limits · EFDR-01 / 02 / 03 / 04

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Manufacturer-published information · EFDR-01 / 02 / 03 / 04

Parameter	Published value	Conditions and sources
Cooling sizes	EFDR-01/02/03/04: 3/5/8/10 kW	Ask for the coolant inlet and outlet, flow and ambient behind each rating. Source
Pump power	10 kW and 8 kW pages: 100/240/240/300 W; 3–5 kW page: merged 100 W	Request the pump for your model with its curve; motor watts do not give head. Source
Body sizes on the 10 kW page	01: 685 × 600 × 280 mm; 02/03: 818 × 600 × 280 mm; 04: 1,005 × 557 × 280 mm	The 3–5 kW page shows the smaller outline across models; get the drawing for your order. Source
Power supply	600 V nominal high voltage; 24 V nominal low voltage; low-voltage demand 450/800/800/1,000 W	The demand row is the low-voltage side; ask for compressor and total input. Source
Coolant, protection and refrigerant	50% V/V ethylene glycol; IP67 claim; R134a/R1234yf alternatives	Ask for the IP test report, coolant compatibility and which refrigerant is fitted. Source
Options and EMC	PTC 5/10/14/24 kW, expansion tank/DC supply options; EN50487:2010 named	Options are priced separately; ask for the exact EMC standard and report. Source

series REFERENCE

Cling EDDR roof-mounted liquid battery cooling

Catalogue reference: EDDR-01 / 02 / 03 / 04

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Parameters and source limits · EDDR-01 / 02 / 03 / 04

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Manufacturer-published information · EDDR-01 / 02 / 03 / 04

Parameter	Published value	Conditions and sources
Cooling models	EDDR-01/02/03/04: 3/5/8/13 kW	Ask for the coolant temperatures, flow and ambient behind each rating. Source
Power supply	High 600 V nominal (400–750 V DC); low 24 V nominal (18–32 V DC)	Connectors, protection, start-up and DC-DC supply come on the order drawing. Source
Auxiliary power row	300/300/600/900 W under an ambiguous low/high-voltage-demand heading	Ask what load the row covers. The efficiency figure of 2.2 is printed without a test basis. Source
Coolant and pump	50% V/V ethylene-glycol solution; internal pump optional	Request inhibitor and material compatibility, pump head and pump duty. Source
Outline and connections	Merged outline 1,300 × 290 × 56 mm; Φ25 connections/custom alternatives	The 56 mm height needs checking on a current drawing for your model. Source
Protection, range and heating	IPX7; cooling operation −20°C to +60°C; optional PTC 5/10/14/24 kW	Ask for the dust rating, capacity across the range and which heater goes with which model. Source

series REFERENCE

Cling DFDD independent-drive vehicle cooling

Catalogue reference: DFDD

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Parameters and source limits · DFDD

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Manufacturer-published information · DFDD

Parameter	Published value	Conditions and sources
Application	Independent cooling while parked; airport shuttle and examination-vehicle examples	Cling's named uses for the DFDD. Source
DFDD-06	37 kW cooling; evaporator 8,000 m³/h; condenser 10,000 m³/h; compressor 650 cc	Rated at 40°C in the cabin and 35°C outside; speed, humidity and full input to be supplied. Source
Other sizes	DFDD-05 33 kW; DFDD-07 44 kW	Smaller and larger options in the same family. Source
Roof schemes	DD/SDD/BFFD scheme names in the size section	Ask for the dimensions of the auxiliary unit and the chosen roof combination. Source
Alarms	Voltage, oil pressure and water temperature	Request trip limits, sensors, sequence and restart logic. Source
Engine and service data	No engine model, fuel/emissions/noise schedule, refrigerant entry or current installation drawing	All to be supplied with the DFDD selection. Source

series REFERENCE

Cling FFND/XFND internal bus cooling

Catalogue reference: FFND / XFND

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Parameters and source limits · FFND / XFND

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Manufacturer-published information · FFND / XFND

Parameter	Published value	Conditions and sources
FFND-08 cooling and airflow	56 kW; R134a; upper/lower evaporator flow 6,000/3,000 m³/h	Cling's footnote: 40°C inside, 35°C outside. No humidity or drive speed is given. Source
FFND-08 evaporator sizes	Upper 1,468 × 387 × 202 mm; lower 1,510 × 586 × 261 mm	Two separate assemblies. Ask for the installed support and duct envelope of each. Source
FFND-06 condenser options	Side 855 × 476 × 1,085 mm; rear 1,951 × 372 × 443 mm	Two mounting choices for one model; ask Cling which drawing applies to your order. Source
XFND-10 condenser size	588 × 20 × 702 mm as printed	The 20 mm depth is unusual for a condenser. Ask Cling for the correct dimension on a current drawing. Source
Compressor displacement	FFND-08 750 cc; FFND-06 650 cc; all models R134a	The compressor model, drive and line sizing come with the selection. Source
Data to request	Refrigerant line lengths and charge, electrical input and current, control and pressure schedule	The family table lists capacity, airflow and sizes only. Source

series REFERENCE

Cling GZHD/EZHS rear-mounted bus HVAC

Catalogue reference: GZHD / EZHS

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Parameters and source limits · GZHD / EZHS

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Manufacturer-published information · GZHD / EZHS

Parameter	Published value	Conditions and sources
GZHD-08 cooling	56 kW; R134a; 830 cc compressor displacement	GZHD rows list cooling only. Source
EZHS-08 cooling and heating	60 kW cooling; 58 kW heating; R410A	Ask for the heating conditions and the electrical platform with the selection. Source
Rear body sizes	GZHD-08: 2,000 × 750 × 1,230 mm; EZHS-08: 2,000 × 750 × 1,167 mm	Same footprint, different heights. Supports and service space come from the installation drawing. Source
Airflow	Evaporator 10,000 m³/h on both large models; condenser GZHD-08 12,000 / EZHS-08 14,000 m³/h	Catalogue flows; external pressure is not stated. Source
Current entries	GZHD-08 85 A; EZHS-08 103 A under a maximum-power heading	Supply voltage is not given, so these figures cannot be turned into watts. Source
Air distribution	Balanced upper and lower air supply	Cling's description; ask for the zone split at your duct resistance. Source

series REFERENCE

Cling CM160 narrow-body Jeepney cooling

Catalogue reference: CM160 / CM160S

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Parameters and source limits · CM160 / CM160S

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Manufacturer-published information · CM160 / CM160S

Parameter	Published value	Conditions and sources
CM160 body	CM160: 2,200 × 1,360 × 210 mm; 90 kg	Ask for the mounting frame and support envelope on the installation drawing. Source
CM160S	16 kW; 96 kg; 2,200 × 1,360 × 215 mm	The higher-output version in the same family. Source
CM160 cooling	14 kW; R134a	Request the air temperature, humidity and compressor speed behind the rating. Source
Airflow and compressor	Evaporator 3,200 m³/h; condenser 4,000 m³/h; 313 cc compressor	Shared by both versions; ask for delivered airflow after ducting. Source
Electrical row	55 A beneath maximum-power heading	Printed without a voltage; ask what load the 55 A covers. Source
Weight comparison	Source compares 90 kg unit with a previous 139 kg product	Ask for the cooling duty of the older product to compare like with like. Source

series REFERENCE

Cling XDD school-bus cooling systems

Catalogue reference: XDD

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Parameters and source limits · XDD

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Manufacturer-published information · XDD

Parameter	Published value	Conditions and sources
XDD-03 cooling and air	23 kW; R134a; evaporator 4,000 m³/h; condenser 5,400 m³/h	Footnote conditions: indoor 40°C, outdoor 35°C. Humidity and compressor speed are left blank. Source
Compressor options	XDD-03 displacement 380/430 cc	Two compressor sizes; each needs its own selection and drive. Source
Roof unit	2,752 × 1,848 × 220 mm; 140 kg	Suggested for 8–10 m buses. Roof structure is checked by the body builder. Source
Electrical column	XDD-03 under a maximum-power heading: 65 A	Amperes, not watts; supply voltage and full demand are not given. Source
Other sizes	XDD-02 19 kW; XDD-04T 28 kW	Same family and rating footnote. Source
EMC statement	National-standard level II	Cling names no standard number, version or report; ask for them. Source

series REFERENCE

Cling DD traditional roof bus cooling

Catalogue reference: DD / CM350 / BFFD reference

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Parameters and source limits · DD / CM350 / BFFD reference

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Manufacturer-published information · DD / CM350 / BFFD reference

Parameter	Published value	Conditions and sources
DD-06 cooling	37 kW; R134a; 647 cc compressor displacement	Test footnote gives a 40°C cabin and 35°C ambient; ask for the humidity and compressor speed. Source
DD-06 roof unit and air	180 kg; 3,380 × 1,840 × 210 mm; evaporator 6,000 m³/h	Mounting details and delivered duct flow come with the selection. Source
Electrical column	Headed maximum power; DD-06 value 90 A	Amperes without a voltage; ask for the supply and full electrical and shaft demand. Source
CM350 comparison	37 kW; 647 cc; 170 kg; 3,350 × 1,720 × 250 mm; 95 A	Separate Cling table with the same air-temperature footnote. Source
BFFD construction option	Copper-tube and aluminium-fin coils; BFFD-06 37 kW, 255 kg	Width figures vary oddly across the BFFD table; ask for the current drawing. Source
DD features	Lighter weight, faster maintenance and high-efficiency PM2.5 filtration	Cling's description of the DD range; ask for the data behind each point. Source

series REFERENCE

Cling CEZDD R744 bus heat pumps

Catalogue reference: CEZDD

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Parameters and source limits · CEZDD

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Manufacturer-published information · CEZDD

Parameter	Published value	Conditions and sources
Refrigerant	R744 (CO₂)	Ask for the charge and the full pressure envelope of the ordered unit. Source
CEZDD-04	30 kW cooling; 34 kW heating; evaporator 6,000 m³/h; compressor displacement 7.3 m³/h	Displacement is a swept volume; ask separately for electrical input. Source
CEZDD-06	33 kW cooling; 37 kW heating; compressor displacement 10.9 m³/h	Larger size in the same family. Source
Ambient range	−30°C to 45°C ambient operation	Request heating, input and defrost figures near both limits. Source
Dimensions	CEZDD-04: 3,250 × 2,000 × 345 mm; CEZDD-06 length 3,500 mm	Weight, supports and service envelope come on the installation drawing. Source
Pressure and efficiency	Relief valve plus pressure control; about 30% heating-COP improvement at −10°C	Ask for the relief settings and the system the COP is compared against. Source

series REFERENCE

Cling EZDD/EZDS electric passenger heat pumps

Catalogue reference: EZDD / EZDS

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Parameters and source limits · EZDD / EZDS

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Manufacturer-published information · EZDD / EZDS

Parameter	Published value	Conditions and sources
Electrical supply	High voltage 400–750 V; low voltage 24 V	From the family table; ask for current, start-up and protection limits. Source
EZDS-04 output	28 kW cooling; 26 kW heating	Rated with 40°C indoor and 35°C outdoor; Cling should state the heating and humidity conditions. Source
Refrigerant	R407C	Different from the R410A LEZDS-J and the R744 CEZDD; request charge and service data. Source
EZDS-04 airflow and body	Evaporator 4,000 m³/h; condenser 8,000 m³/h; 2,750 × 2,000 × 260 mm; 245 kg	Agree air distribution and roof supports with the body builder. Source
Protection	Key components described as IP67	Ask for the component list and test report, and the rating of the complete unit. Source
Battery cooling	No battery coolant-capacity row in this ordinary family table	Battery duty is quoted on the integrated J-series units. Source

series REFERENCE

Cling EZDD-J/EZDS-J integrated cabin–battery heat pumps

Catalogue reference: EZDD-J / EZDS-J

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Parameters and source limits · EZDD-J / EZDS-J

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Manufacturer-published information · EZDD-J / EZDS-J

Parameter	Published value	Conditions and sources
Architecture	Roof passenger HVAC plus liquid-battery thermal management	Ask for the order P&ID showing the coolant equipment and valves. Source
EZDS-04-J	28 kW passenger cooling; 26 kW heating; battery 5/8 kW driving/charging	Table footnote sets 40°C inside, 35°C outside. Battery and heating conditions are missing; request them. Source
EZDD-04-J	EZDD-04-J: 17 kW cooling, 16 kW heating, battery 3/5 kW	Each model has its own battery row. Source
Refrigerant and airflow	R407C; EZDS-04-J evaporator 4,000 m³/h, condenser 8,000 m³/h	Request charge, motor input and air-distribution interfaces. Source
EZDS-04-J body	EZDS-04-J: 2,750 × 2,000 × 260 mm; 255 kg	Listed for a 7.5–9 m bus; roof loads need the body builder's approval. Source
Cost and weight claims	30% lower overall cost and 20% lower vehicle weight advertised	Ask Cling what separate system the figures compare against. Source

series REFERENCE

Cling LEZDS-J low-temperature bus heat pumps

Catalogue reference: LEZDS-J

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Parameters and source limits · LEZDS-J

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Manufacturer-published information · LEZDS-J

Parameter	Published value	Conditions and sources
Models and refrigerant	LEZDS-04-J / LEZDS-06-J; R410A	Different refrigerant from the R407C and R744 Cling families. Source
LEZDS-04-J	28 kW cooling; 25 kW heating; 4,000 m³/h evaporator airflow	Rating point 40°C indoor / 35°C outdoor; request heating, humidity and voltage conditions. Source
Battery cooling	5/8 kW for both published models	Driving / charging. Request coolant temperatures, flow and a combined-load map. Source
LEZDS-04-J body	LEZDS-04-J: 2,750 × 2,000 × 260 mm; 260 kg; suggested 8–9 m bus	Roof loads, mounting and service space need the vehicle builder's approval. Source
Climate and energy	Ambient −15°C to 50°C; over 50% less power than traditional PTC promoted	Ask for output at your low point and the PTC comparison basis. Source
LEZDS-06-J	LEZDS-06-J: 38 kW cooling, 34 kW heating; 315 kg; 3,250 × 2,000 × 260 mm	Use the current selected schedule for the order. Source

Zhengzhou Cling: bus HVAC, battery cooling and how to order

Sources

Compiled by HVACDeck Editorial. Updated 2026-11-06. Each fact on this page comes from the publication listed below.

1. Official Cling company profileChecked 2026-10-11 · Company history, founding date, certificates and scale figures.
2. Official contact pageChecked 2026-10-11 · Company address in Zhengzhou High-tech Development Zone.
3. Official strength and process pageChecked 2026-10-11 · Production lines, brazing and cleaning processes, and photographs of assembly and test laboratories.
4. Government environmental approval with attachmentChecked 2026-10-11 · Conditional approval of 21 January 2025 for the component-process upgrade and wastewater project, with its conditions.
5. Zhengzhou High-tech government recognition reportChecked 2026-10-11 · Article of 11 November 2025 naming Cling among three recognised specialised enterprises.
6. Official 10 kW capacity pageChecked 2026-10-11 · Series table with pump powers and body sizes by model.
7. Official 8 kW capacity pageChecked 2026-10-11 · Series table used to compare pump and body entries.
8. Official 3–5 kW capacity pageChecked 2026-10-11 · Series table with merged pump and outline cells.
9. EFDR unit photographChecked 2026-10-11 · Shows the fan and connection side of the unit.
10. Official EDDR roof liquid-cooling series pageChecked 2026-10-11 · Four-model table with voltages, coolant, pump option, outline, protection and the configuration update notice.
11. Official 8 kW capacity pageChecked 2026-10-11 · Repeats the four-model series table.
12. Official 13 kW capacity pageChecked 2026-10-11 · Repeats the series table without separate coolant conditions.
13. EDDR roof unit photographChecked 2026-10-11 · Shows the roof unit's appearance.
14. Official DFDD independent-drive pageChecked 2026-10-11 · Three-model table, parked-use description, alarm and engine statements and the configuration update notice.
15. DFDD auxiliary assembly imageChecked 2026-10-11 · Photograph of the engine and compressor package.
16. Official internal-family product pageChecked 2026-10-11 · Four-model table with capacity, airflow, compressor displacement and separate condenser and evaporator dimensions, plus the zoning and construction features.
17. Cling product imageChecked 2026-10-11 · Photograph of the fan and exchanger assembly used for the internal family.
18. Official GZHD/EZHS rear-family pageChecked 2026-10-11 · Combined table for both architectures with cooling, heating, airflow, current and sizes, the balanced-air description, the rating footnote and Cling's configuration notice.
19. Cling rear-family photographChecked 2026-10-11 · Photograph of the fan-bank assembly used for the rear family.
20. Official CM160/CM160S pageChecked 2026-10-11 · Two-model table, Jeepney and PUV application, weight comparison and the configuration update notice.
21. CM160 family imageChecked 2026-10-11 · Photograph of the compact roof unit.
22. Official XDD school-bus pageChecked 2026-10-11 · Three-model table with cooling, airflow, compressor options, mass, size and current, plus the microchannel, fan-control and EMC statements.
23. Cling XDD family imageChecked 2026-10-11 · Photograph of the yellow school-bus roof unit.
24. Official DD family pageChecked 2026-10-11 · Six-model table with cooling, airflow, displacement, mass, sizes and current, the rating footnote and Cling's feature list.
25. Cling DD family imageChecked 2026-10-11 · Photograph of the DD roof unit family.
26. Official CM350 product pageChecked 2026-10-11 · Single-model schedule with cooling, displacement, size, mass and current, used for the DD-06 comparison.
27. Official BFFD product pageChecked 2026-10-11 · BFFD table and construction notes on copper-tube and aluminium-fin coils and fan speed control.
28. Official CEZDD R744 pageChecked 2026-10-11 · Two-model table with climate range, COP, protection statements and the configuration update notice.
29. CEZDD family imageChecked 2026-10-11 · Photograph of the roof unit family.
30. Official EZDD/EZDS pageChecked 2026-10-11 · Five-model table, electrical platforms, the IP67 component statement and the configuration update notice.
31. EZDD/EZDS family imageChecked 2026-10-11 · Photograph of the roof unit; ask for motor, electrical and control details.
32. Official integrated J-series pageChecked 2026-10-11 · Five-model table with cabin and battery rows, integration description, test footnote and update notice.
33. Integrated family imageChecked 2026-10-11 · Photograph of the roof unit; circuit contents come with the order documents.
34. Official LEZDS-J pageChecked 2026-10-11 · Two-model table, test footnote, climate range, PTC energy statement and the configuration update notice.
35. LEZDS-J family imageChecked 2026-10-11 · Photograph of the roof unit; plumbing and electrical scope come with the order.

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