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Precision AC

Spot cooling solutions

Precision AC systems are ideal for industrial sites with strict local temperature and humidity requirements, such as wafer fabs, packaging plants, and electronic testing labs.

Precision AC(images 1)

Precision AC Overview

When centralized temperature and humidity management is driving up your operating costs, it may be time to consider spot cooling solutions. As a leader in China’s refrigeration industry, LNEYA is committed to exploring higher-precision industrial cooling solutions and launching precision air conditioners with enhanced flexibility.
 
These cooling systems include mini air-cooled and water-cooled series. Both achieve a temperature control accuracy of ±0.1°C. Their compact size and lightweight design allow for easy mobility as needed.
 
Whether cooling small equipment or small cleanrooms, this industrial spot cooler is the ideal choice.

Precision AC Features

More Precision
Cleaner
Safer
More Flexible

Utilizing advanced dynamic temperature control technology, temperature regulation accuracy reaches ±0.1°C and humidity control accuracy reaches ±1%RH. Rapid temperature ramping ensures stable and consistent temperature and humidity during the process.
 
They meet the stringent low-humidity and constant-humidity requirements of semiconductor processes and other industries.
 
For higher temperature and humidity requirements, please contact us for custom orders.

1.Cleanroom-grade Accessories
Use low-outgassing, low-particle cleanroom materials, including cleanroom-grade fans and cleanroom-grade cabinets, to prevent secondary contamination of the process environment.
 
2.Fresh Air Technology
Adaptable to certain fresh air functions, it supports constant fresh air replenishment. Combined with precision filtration and positive pressure control, it effectively isolates external dust and harmful gases, maintaining a stable cleanroom environment.

1.Safety Devices
Equipped with over ten safety protection devices, including phase protection, pressure protection, and temperature protection. Automatic shutdown occurs when safety limits are exceeded.
 
2.Abnormal Alarm
When abnormal conditions occur, the system automatically triggers multiple levels of alarms (audio/visual/remote/platform push notification) to ensure process and personnel safety.
 
3.Self-Diagnosis
The system automatically monitors key parameters during operation, including temperature, pressure, flow, humidity, and electrical status, to promptly identify potential problems.
 
4.Work Log
Automatically generates detailed operation logs and alarm records, facilitating fault tracing, data analysis, and process optimization.

1.Simple Installation
Precision ACs feature a modular design, with all components pre-assembled at the factory. Upon receipt, you only need to connect the plumbing and plug in the power cord to start operation.
 
2.Easy to Move
Compactly arranged internal components ensure a very small size and weight. The mini series, especially the LMW-01BS, weighs only 32 kg (500 x 412 x 346 cm). The unit is equipped with four wheels for easy mobility.
 
3.Small Space Requirements
All units in the precision air conditioning series are vertical rectangular units, occupying a very small footprint and suitable for compact cleanrooms and laboratories.
 
4.Wide Range of Applications
Suitable for a variety of scenarios, including semiconductor etching, lithography, testing, pharmaceutical fermentation, and precision instrument cooling, covering industries such as electronics, pharmaceuticals, biology, and chemicals.
 
5.Remote Control
Supports real-time monitoring and parameter adjustment via industrial networks or cloud platforms, meeting the needs of digitalization and remote O&M in modern factories.
 
6.Integrated Management
Open communication interfaces such as Modbus enable integration with higher-level management systems such as MES and BMS for centralized scheduling and management.

Precision AC(images 2)

Precision AC Specifications

The Mini Air-Cooled series also achieves high accuracy (±0.1°C, ±1%RH)

Water-cooled Precision AC
Mini Air-cooled Precision AC

ModelLMW-01BSLMWX-01BSLMW-03BTLMWX-03BT
Rated Airflowm3/min0.7~1.02.0~4.0
Adjustable Temperature & Humidity Range ℃/ %RH21~2621~26;45%RH~60%RH21~2621~26;45%RH~60%RH
Temperature/Humidity Control Accuracy℃/ %RH±0.1±0.1;±1.0%RH±0.1±0.1;±1.0%RH
Maximum Cooling Capacity(50/60Hz)KW0.2/0.250.37/0.451.31.3
Reheating Capacity(50/60Hz)KW0.1/0.130.40.50.7
Maximum Humidification CapacityKg/h/0.8/2.3
Humidification Water Supply Temperature Range/10~40/10~40
Humidification Makeup Water Pipe Connection//Rc1/2/Rc1/2
Humidification Makeup Water Pressurebar/0.3~2/0.3~2
Water Quality Requirement//*Conductivity125~1250μs/cm      *Water hardness not exceeding 40°f         *Free of organic compounds/*Conductivity 125~1250μs/cm      *Water hardness not exceeding 40°f          *Free of organic compounds
Maximum External Static Pressure of Supply AirPa120/130120/160110/150110/150
Supply Air Outlet Connection Diametermmφ75φ100φ100φ100
Equipment Ambient Temperature℃/ %RH20~26;40%RH~60%RH ①
Ambient Temperature Accuracy Range℃/ %RH±1;±5%RH
Power SupplyV/Hz1~220v±10%; 50/60Hz±5Hz  3~380v±15%; 50Hz±5Hz  ④ 
Unit Rated Input PowerKW0.32/0.341.2/1.20.75  ⑤2.7 ⑤
Max Operating Current of UnitA1.7/1.82 6.4/6.4 1.354.8
Unit Noise Level(50/60Hz)dB(A)54/5658/606566
Max Input Power of UnitKWA0.34/0.38 1.5/1.5 1.44
Refrigerant/Charge QuantityKgR134A/0.13R407C/0.3R410A/0.4R410A/0.48
Unit N.WKg326995135
Unit G.WKg4085110150
Unit Overall Dimensions(L*B*H)mm500*412*346630*390*765 590*480*1070680*520*1350
Unit Packaging Dimensions (L*B*H)mm600*500*400750*500*850700*600*1200780*650*1400

Product ModelLW-0090-BW01LWX-0090-BW01LW-0100-BW01LWX-0100-BW01
Rated Airflowm3/h8000~9000 9000~10000  
Adjustable Temperature & Humidity Range ℃/ %RH22~23;45%RH22~23;45%RH22~2322~23;45%RH~70%RH
Temp./Humidity Control Accuracy   ℃/ %RH±0.1±0.1;±1%RH±0.1±0.1;±1.0%RH
Max Cooling CapacityKW20kw @25℃16kw @26℃
Max Humidification CapacityKg/h/5/2.3
Outdoor Air Ratio  ② 20%20%//
Equipment Outdoor Air Temp & Humidity Range℃/ %RH23±2;;40%~60%±2%RH25; 50%RH
Equipment Return Air Temp & Humidity Range℃/ %RH23±0.1;45%RH ±2%RH/
Max External Static Pressure of Supply AirPa300~4000~200
Supply Air Outlet Connection Diametermmφ500φ500
Humidification Water Supply Temp Range/10~40/10~40
Humidification Makeup Water Pipe Connection//Rc1/2/Rc1/2
Humidification Makeup Water Pressurebar/1~4/1~4
Water Quality Requirement//*Conductivity75~1250μs/cm      *Water hardness not exceeding 40°f          *Free of organic compounds/*Conductivity 75~1250μs/cm      *Water hardness not exceeding 40°f         *Free of organic compounds
Cooling Water Temperature18~2218~22
Cooling Water Connection G1″G1″
Power SupplyV/Hz3~380v±10%; 50Hz±5Hz  Three-phase five-wire system
Unit Rated Input PowerKW12.512.544
Maximum Operating Current of UnitA232377
Unit Noise LeveldB(A)≤80≤75
Maximum Input Power of UnitKWA158
Refrigerant/Charge QuantityKgR410A/4R410A/4
Safety Protection Functions Power overvoltage and undervoltage protection; phase reversal and loss protection; motor overheat and overload protection; compressor discharge temperature overheat protection; system high pressure protection; system low pressure protection; temperature module fault protection; adjustable over-temperature protection; fan motor overheat protection, etc.
Unit N.WKg750800650680
Unit G.WKg800850700750
Unit Overall Dimensions (L*B*H)mm2130*1000*20001200*1200*1950 
Unit Packaging Dimensions(L*B*H)mm2300*1150*21001350*1350*2050

Precision AC Applications

Precision air conditioners are widely used in temperature- and humidity-sensitive environments. Whether in semiconductor process equipment, precision laboratory instruments, cleanrooms, or constant temperature and humidity environments, spot coolers play a key role.
 
The following are common applications for precision air conditioners:

• Photolithography equipment
• Resin coating and developing equipment
• Electron microscopes
• Printed circuit board storage equipment
• Chromatographs
• Glue dispensing equipment
• Electronic balances
• Precision machine tools
• Solar simulators
• Cleanrooms
• Constant temperature and humidity chambers
 
Precision AC units ensure stable operation across semiconductor, pharmaceutical, and electronics industries.

Precision AC(images 3)

FAQ

Precision AC provides precise temperature and humidity control for equipment, while comfort AC focuses on human comfort with less accuracy.

Yes, they can target specific equipment without cooling the entire room.

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Precision AC(images 10)
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