H. Stars Modular Scroll Air-source Heat Pump Unit

CompanyProfile

H.Stars (Guangzhou) Refrigerating Equipment Group Ltd., establishedin1992,inEconomic&TechnologicalDevelopment Zoneof Guangzhou,China，composed of8 subsidiaries to provide one-stop solution to HVAC customers,specializing in R&D,production,design and installation.As the company grows, H.Stars group expands its business globallyand has sold to 53 different countries.H.Stars Group isawarded with "Newand High Technology Enterprise in Guangzhou"and has become the training base of manyuniversities both in Chinaand abroad via technologycooperation.

H.StarsGroupsuppliesanextensive lineof Commercialand Industrial Energy Saving HVAC products including:Air Cooled Chiller,WaterCooledChiller,Industrial Chiller,Centrifugal Chiller,Magnetic oil free centrifugal chiller，Multi- function Chiller,Hot Water Unit,Heat Recovery Unit,Heat Pump Unit, Condensing Unit,Glycol Chiller,Shelland Tube Heat Exchanger, Air Handling Unit,Fan Coil Unit,Cooling Tower,etc.all type of HVAC products.

H.Stars Group has been dedicated in quality and innovation and is technically strong in commercial and industrial application asa

HVAC manufacturer.Apart from obtaining plenty of energy-saving product patents,H.Stars Group hasachieved CE certifications forPressure Vessel and standard chillers,BR1,ASME, ISO9001:2000,ISO14001:2004 and other certifications.

A good reputationof H.Stars Group hasbeenbuiltanddelivers a full HvAC service to customers worldwide.Our products are widelyapplied in industries for cooling of Laser generators, Welding electrodes, Cutting machines,Electric spark machines, Extrusion process,Hydraulic System,Electroplating,Ultrasonic Cleaning,lonPlating film,Electronic facility,Electrical appliance components,Compressed Gas Dehumidification,Dairyand Beverage Cooling processing,Pharmaceutical and Biological products,Medical equipment,Glass Coating,Tempered Glass and Cultivation Sea Food.

H.Stars Group will continue to develop energy saving and environmental friendly equipment to create "The Efficiency Planet"as our obligation.By focusing on customers' needs and wants in order to contribute more our potentials,from now on, H.Stars Group will hand in hand with you to bea shining star in the foreseeable future.

Modelnomenclature

Product Overview

20STB Series Air-source Heat Pump Units have single-compressor, dual-compressor,triple-compressor and quadruple-compressor series,manufacturedbyadoptingfamousbrandcompressorand electriccontrolcomponents,andequippedwith high-efficiencyfin heat exchanger and Shell and Tube Heat Exchanger.

The2oSTB Series Air-source Heat Pump Unit has various specifications with cooling capacityrange of 30kW-263kW and heatingcapacity range of 31kW-285kW,thechilledwateroutput temperatureis 5 ^ { \circ } \mathsf { C } - 2 0 ^ { \circ } \mathsf { C } ,and the hotwater output temperature is 4 0 ^ { \circ } C - 5 0 ^ { \circ } C ：

Themaximum operating ambient temperature is 4 5 ^ { \circ } C

Theunit is equipped with several protection devices,and thecomponentshaveexcellentperformance,and canexert maximumenergy efficiencyinactualworkingconditions.

20STBAir-cooled Heat Pumpseries productsarethe heat pumps speciallydesigned for small and medium-sized central air-conditioning fieldswith coolingand heatingrequirements. Theyare suitable for the buildingair-conditioningsystemswith layered management,small and medium-sized ofices,factory workshops,restaurants,villas and other air-conditioning environments.Thenewunitwith several compressors can be customized according to actual needs,which is more energyefficient and durable than ordinarysplit air conditioners. Inaddition,our companyisalso capableof manufacturing products of eco-friendly refrigerants such as R134a,R407C, R404A and power systems.

Compressor

The unit adopts famous brand compressor with middle bearing cap to achieve high energy efficiency and low sound level.The unit runs quieterand moreeficient,with thescroll designof "contact-freeand wear-free"to reduce friction.

Fin Type Heat Exchanger

Itadopts the hydrophilicaluminum foiltoreduce theadhesionofwater on the aluminum foil and greatly improve the heat exchange efficiency. Thealuminum finsarepackedin thecopperand featuresuniformwind speed.With reasonable array copper pipes,it is installed in \ " \boldsymbol { \mathsf { V } } ^ { \ast } -shape to improve heat exchange efficiency and reduce fan noise.The copper tubeand aluminum finaremechanicallyconnected through expansion with high performance and stable heat exchange.It is independently designed and manufactured with strict quality control. Configuring accordingtotheplaceofuseandprocess,itensuresthattheheat transfer coeficient meets the design requirements.

ShellandTubeHeatExchanger

The copper tube of the evaporator adopts 1 . 1 \mathsf {mm } thick copper heatexchange tube,whichensuresthatallproductsmeetthehigh requirementsofhigheiciency，energysaving,safety,strongantifouling abilityand durability.According to the customer's use conditions and water quality factors,different materials of heat exchange tubescan be selected, and the fouling coefficientcan be increased to enhance the heat exchange eficiency,ensuring the high eficiencyand energy saving and service life of the unit. It is independently designed and manufactured with strict quality control.Configuringaccordingto the placeof useand process,itensures thatthe heat transfercoefficientmeets thedesignrequirements.

Controller

Thecontrolleradoptsthe highlyintegratedbutton-type humanmachine interface control center,which greatly improves the antiinterferenceabilityof the system.The productadopts plastic shell,which is easy to install.The front and rear panels exchange data through 485 communication,and the entire system can be integratedorseparated.Siemens PLCcontroller canalso be selected to realize ModBus RTU,TCPorS7 communication.

Fan

With special low-energy fanand reasonable fan nozzle design,it canmaximize theairmobilityandreduce thenoise.Practicehas proven that our fansrunstablyand have longservice life.The waterproof and dustproof grade of the motor: IP54,insulation grade: F;every fan hasa separatesplit cavity.

Compressor

Fin Type Heat Exchanger

Shell and tube Heat Exchanger

Controller

Fan

Technical ParametersTableof H.StarsScroll Air-source HeatPump Unit

Technical ParametersTableof H.StarsScroll Air- HeatPump Unit

Notes:

Cooling Capacity Curve

Cooling Capacity Variable Curve

HeatingCapacityVariableCurve

DimensionsofAir-SourceScroll Chiller

MNN 司 B

Heat Recovery Technology

Functioncharacteristics

Recoverthecondensate heat fromchillerunits (usuallydischarged totheatmospherebycoolingtower),andmakeeffectiveuseofit. Forexample:a hotel needs both heating (fordomestic hotwater) and coolingin the summer.With the heat recovery cycle,the heat absorbed duringcooling can be transferredto the buildingwhere hotwater is needed through heat recovery.In the cooling season, hotwaterabove 5 0 ^ { \circ } \mathsf { C } canbeprovided freeofcharge,and the heat recoveryreaches 3 0 % ~ 1 0 0 % of the unit's cooling capacity.

H.Stars Group is the first manufacturer to develop heat recovery technology.Patent No.:ZL03223588.7,and haswon the prize of science and technology by the Ministry of -Building Industry.

VFDTechnology

High efficientandenergysaving

Theunitadopts theworld-class brand variable frequencydrive technologytogreatlyimprovethepartialloadenergyefficiencyof theunit,and the highestcomprehensivepartial load performance coefficient (IPLV) can reach more than 10.

More eco-friendlyand energy saving

VFD water chiller can adopt R134a refrigerant according to the requirements,andwon'tdestroytheozone layerof theearth,which complieswiththerequirementsof the Montreal Protocol;VFD energysaving,flooded typeevaporatorenergysaving,industrial application energysavingadvantages.

VFDadvantage

The VFDwater chiller has thesoft start function,which can reduce the impact of starting current; the converter is equipped with the DC reactorto reduce the harmonic interference to the greatest extent; thereisalsoa low-harmonic filteroption,whichmeets the IEEE519specifications for harmonic distortionat the input power of the inverter,and has harmonic filterover-temperature protectionand capacitanceswitching function.

H.Stars (Guangzhou) Refrigerating Equipment Group Ltd

Address:No.1 Guoyuan 4th Road,Guangzhou Economic&
Technological Development Zone,HuangPu District,Guangzhou,
China Zip Code510530
Email:sales@hstars.com.cn
Tel:+862062266755 ext.886
Fax:+862082266081
Website:www.hstarschiller.com
Twitter:twitter.com/HStarsGroup
Facebook:www.facebook.com/Hstarsgroup
Linkedln:www.linkedin.com/company/hstarsgroup
Instagram:www.instagram.com/hstars_chiller_maker