（1） Standards adopted for equipment manufacturing and testing
1. GB/T18430.1-2007 "Industrial or Commercial Cold Water (Heat Pump) Units with Vapor Compression Cycle"
2. JB/T4330-1999 "Determination of Noise from Refrigeration and Air Conditioning Equipment"
3. JB/T6917-1998 "Pressure Vessels for Refrigeration Equipment"
4. JB/T7666-1995 General Provisions for Nominal Operating Conditions of Refrigeration and Air Conditioning Equipment
5. JB/8654-1997 "Safety Requirements for Volumetric and Centrifugal Cold Water (Heat Pump) Units"
6. GB/10870-2001 "Performance Test Methods for Volumetric and Centrifugal Cold Water (Heat Pump) Units"
7. Relevant requirements of GB/T24001-2004 and GB/T28001-2011 standards. Box type air cooling:
■ Function Introduction
The HLP xxaS series integrated air-cooled chiller is designed for a water outlet temperature of 7 ℃ and an ice water outlet temperature control range of 0-25 ℃ (applicable to medium and high temperature series).

■ Unit Overview
The HLP xxaS series integrated air-cooled chiller is a type of refrigeration unit that uses a compressor to compress refrigerant and then condenses and exhausts heat through a condenser to cool the refrigerant to a medium temperature. After cooling, the refrigerant is then decompressed through an expansion valve and enters the evaporator for evaporation and heat absorption, thereby achieving refrigeration function. Its structure mainly includes components such as refrigeration compressor, condenser, evaporator, expansion valve, electronic control system, protection system, and auxiliary devices.

■ Product classification
HLP-A series air-cooled box type chiller

The HLP-A series integrated air-cooled chiller unit adopts an air-cooled finned condenser, which does not require additional cooling towers and cooling water pumps. It has a simple structure, small footprint, and easy management; Mainly used for small refrigeration units, especially for units below 20HP.

■ Configure components
Compressor: Advanced fully enclosed turbo compressors or semi enclosed piston compressors are selected, which have long service life, high efficiency, are not easily damaged, and basically achieve maintenance free operation;
Condenser: The integrated air-cooled chiller unit adopts a finned condenser with hydrophilic aluminum foil internal thread heat exchange tubes and U-shaped high-efficiency internal thread heat exchange tubes, achieving high efficiency, energy saving, environmental protection and high-quality characteristics;
Evaporator: Shell and tube or plate exchange evaporator, compact structure with good heat transfer effect; And or choose materials such as copper, brass, stainless steel, and titanium alloy to ensure the economic efficiency and safe use of the machine;
Expansion valve: internationally renowned brands such as Emerson or Danfoss have balanced flow port type electromagnetic expansion valves, which are not affected by condensation pressure;
Electronic control system: Bangpu microcomputer integrated temperature digital controller realizes automatic control, with precise and adjustable temperature control to meet different user needs;
Protection system: multiple protections such as high and low voltage protection, waterproofing, heat protection (dual), safety valve, overload protection, under phase, reverse phase, under voltage, over-voltage, water flow protection, etc. make the operation of the unit safer;
Auxiliary device: Built in stainless steel water pump and water tank, the body adopts electrostatic spraying, which is beautiful, generous and practical.
Refrigerant: R22 refrigerant is mainly used, and various environmentally friendly refrigerants such as R134A, R407C, R404A can be selected;
Power configuration: Standard 3P-380V-50HZ, optional 110V-480V, 50-60HZ and other different power supplies.

■ Main applications
The HLP series integrated air-cooled chiller unit has a wide range of applications, including air conditioning, rotary dehumidifiers, vacuum coating, quenching equipment, high and low temperature test chambers, purification workshops, injection molding, profiles, pipes, electroplating, coating, electronics, pharmaceuticals, chemicals, food and beverage, grain and oil processing, solar photovoltaics, and refrigeration.

The integrated air-cooled chiller is a device designed for various industries, which achieves cooling through cooling methods. Due to its heat exchange source being air and equipped with a dedicated fan, it is called "air-cooled".

The integrated air-cooled chiller unit does not require the installation of a cooling tower, making it easy to install and move. It is suitable for situations where there is a lack of water sources and does not require the installation of a cooling tower. Low noise fan motor, high cooling and condensation effect, stable throttling mechanism, excellent rust prevention treatment. Adopting high-performance compressors imported from Europe and America, with high EER value, low noise, and stable operation.

The main refrigeration components of the box type integrated air-cooled chiller unit are all well-known domestic brands, with good performance and reliable operation. The air-cooled condenser is made of copper tube with aluminum sheet, compact structure, and high heat transfer efficiency. We use domestically produced well-known axial fans with low noise, high air volume, dust and water resistance, safety and reliability. The microcomputer controller has multiple control functions such as fault diagnosis, energy management, and antifreeze monitoring to ensure efficient operation of the unit. The integrated air-cooled chiller unit has multiple protection functions, including compressor high and low pressure protection, power phase loss protection, antifreeze protection, frequent compressor start-up protection, unit overheat protection, reverse protection, overload protection, etc.

The integrated air-cooled chiller is a machine that achieves refrigeration effect through absorption circulation. These liquids can flow through a heat exchanger to cool the air or equipment, providing complete protection from the refrigerant system, electrical system to water system, fully ensuring the safe and normal operation of the unit.

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