Scroll Air-cooled Heat Pump Unit
20STB Series Air-source Heat Pump Units have single-compressor, dual-compressor, triple-compressor and quadruple-compressor series, adopted famous brand compressor and electric control components, and equipped with high-efficiency fin heat exchanger and Shell and Tube Heat Exchanger.
Main features of H.Stars Scroll Air-cooled Heat Pump Unit:
1) 20STB Air-cooled Heat Pump series products are the heat pumps specially designed for small and medium-sized central air-conditioning fields with cooling and heating requirements. They are suitable for the building air-conditioning systems with layered management, small and medium-sized offices, factory workshops, restaurants, villas and other air-conditioning environments. The new unit with several compressors can be customized according to actual needs, which is more energy-efficient and durable than ordinary split air conditioners. In addition, our company is also capable of manufacturing products of eco-friendly refrigerants such as R134a, R407C, R404A and power systems.
2) The heat pump has designed with 7 safety protection to ensure the unit running normally. Available in single and dual circuit designs to meet different customer requests. In case one of the compressors in dual compressor system fails, the other compressor can still be running ,to minimize the whole system shutdown risk from losses. Each equipment will be 100% tested by safety inspection system before shipping to ensure the chiller Performance in accordance with national standards.
3) Modular design, automatic load regulation, high efficiency under partial load.
Main components : Compressor
The unit adopts famous brand compressor with middle bearing cap to achieve high energy efficiency
and low sound level. The unit runs quieter and more efficient, with the scroll design of "contact-free
and wear-free" to reduce friction.
Fin Type Heat Exchanger
It adopts the hydrophilic aluminum foil to reduce the adhesion of water on the aluminum foil and greatly improve the heat exchange efficiency. The aluminum fins are packed in the copper and features uniform wind speed. With reasonable array copper pipes, it is installed in "V"-shape to improve heat exchange efficiency and reduce fan noise. The copper tube and aluminum fin are mechanically connected through expansion with high performance and stable heat exchange. It is independently designed and manufactured with strict quality control. Configuring according to the place of use and process, it ensures that the heat transfer coefficient meets the design requirements.
Shell and Tube Heat Exchanger
The copper tube of the evaporator adopts 1.1mm thick copper heat exchange tube, which ensures that all products meet the high requirements of high efficiency, energy saving, safety, strong antifouling ability and durability. According to the customer's use conditions and water quality factors, different materials of heat exchange tubes can be selected, and the fouling coefficient can be increased to enhance the heat exchange efficiency, ensuring the high efficiency and energy saving and service life of the unit. It is independently designed and manufactured with strict quality control. Configuring according to the place of use and process, it ensures that the heat transfer coefficient meets the design requirements.
controller
The controller adopts the highly integrated button-type human-machine interface control center, which greatly improves the anti-interference ability of the system. The product adopts plastic shell, which is easy to install. The front and rear panels exchange data through 485 communication, and the entire system can be integrated or separated. Siemens PLC controller can also be selected to realize ModBus RTU, TCP or S7 communication.
Fan
With special low-energy fan and reasonable fan nozzle design, it can maximize the air mobility and reduce the noise. Practice has proven that our fans run stably and have long service life. The waterproof and dustproof grade of the motor: IP54, insulation grade: F; every fan has a separate split cavity.
VFD Technology
Efficient and energy saving
More eco-friendly and energy saving
VFD water chiller can adopt R134a refrigerant according to the requirements, and won't destroy the ozone layer of the earth, which complies with the requirements of the Montreal Protocol; VFD energy saving, flooded type evaporator energy saving, industrial application energy saving advantages.
VFD advantage
The VFD water chiller has the soft start function, which can reduce the impact of starting current; the converter is equipped with the DC reactor to reduce the harmonic interference to the greatest extent; there is also a low-harmonic filter option, which meets the IEEE-519 specifications for harmonic distortion at the input power of the inverter, and has harmonic filter over-temperature protection and capacitance switching function.