H.Stars Heat Recovery Chiller

Heatrecovery

Aheat recoveryunit,whichisa heatrecoverydevice connected in series to the condenser,can recover the heat generated intherefrigeration process from the refrigerant before it flows into the condenser,so that the system can supplya largeamountof domestic hotwater for freewhile itprovidescoldwater.Theamountofheattoberecovered is optional between 2 5 % and 1 0 0 % of the cooling capacity; the temperature of water at outlet point can reach up to 7 0 % ，and the heat recovery process can increase cooling efficiency by 5 %

H.Stars is the first in China to apply heat recovery technology (patent number:ZL03223588.7).The unit uses a heat recovery device to absorb the heat,which used to be exchanged via a condenser and dissipated into the air, to produce free domestic hot water.They are suitable to meet the needs of hotels,and shopping among others where bothair-conditioninganda large amount of hotwaterare indemand.Compared with other methods of domestic hot watersupply,it is simple instructure,consumesno energy, and has many otheradvantages in energy saving and environmental protection.

Watercooled heat recoveryunit

Cold recovery

The cold recovery unit isa highlyefficient and energy-saving product developed on the basis of standardunits.Acoldrecoverydevice connected in parallel the fin evaporatorina standard air source heat pump recoversthecold generated in the heating process,so that the unit can supply a large amount of cold water for air-conditioning while it provides hot water.The amount of cold to be recovered is 80 % of the heating capacity;

andthetemperature of waterat outlet point ranges between 5 to 2 0 % .The production of cold water requires no additional electrical energy,and the enhanced comprehensive energy efficiency makesita practical,energy-saving and efficient heat pump.It can be used in hotels, hospitals,villas,large commercial residential areasand other places.

Air-cooled cold recoveryunit

Schematic diagram of cold/heat recovery technology H.Stars Heat Recovery chiler

Description of heat recovery

1.The chiller ① produces chilled water and supplies it to the fan coil unit to keep the temperature of the room at a comfortable range;

2.When the chiller ① is producing chilled water, heat generated from the chiller is recovered by heatrecoverydevice （204号 ② and heat the water in the circulatingwatertank ③ hichsuppliedto theusers ④ ·

3.This system provides users with hot waterat ultralow costs;however,the volume of hot water supply willdepend on the usage oftheunit and season conditions.Another hot water system should be installed as back-up system.

Heatrecoverysystem flowchart

Schematic diagram of cold recovery (air source)

A cold recovery device is connected in parallel the finevaporator in a standard air source heat pump unit,which can recover the cold generatedwhen the heating process when the heat pump is producing hot water;and the cold energy is used to reduce the temperature of the water in the circulating water tank to obtain cold waterat very low costs.

The production of cold water requires no additional electrical energy, leading to enhanced comprehensive energy efficiencyof theunit.When the target of water temperatureatusers'endisreachedorwhenthecold recoveryfails,thesystemwillautomaticallyswitchto the air-cooled mode and continue to ensure the hot water supply.

Heat recovery series (heat recovery)

Centrifugal series (heat recovery)

The centrifugal chiller uses two-stage centrifugal compressor,self developed high performance spray-type evaporator,andR134arefrigerant,it hasacoefficientof performance (COP) up to 6.3.Suitable for large industrial andcommercial sites.Refrigerating capacityrange: 2000kW\~10oookW;chilled water temperature at outlet: 5\~20 q .Heat recovered by the heat recovery device connectionin seriesisusedto producedomestic hotwater without additional costs.They are suitable to meet the needsofhotels,andshoppingamongotherswherebothairconditioninganda largeamount of hotwaterare indemand.

Screwseries (heat recovery)

H.Stars 40ST series of screw type chiller has two types, watercooledscrewchillers,andaircooledscrewchillers. Heatrecovered by the heat recovery device connection in series is used to produce domestic hotwaterwithout additional costs.They are suitable to meet the needs of hotels,and shopping among others where both airconditioningand a largeamount of hotwaterare indemand.

Scrollseries (heat recovery)

20STB series water chillers are manufactured using compressors and electronic control components from branded suppliers,completed with high-efficiency shell and tube condensersand evaporators,and featurewith multiple protection functions.Designed forcomfortableairconditioning,theycanworktogetherinparallel/module.Heat recoveredbytheheatrecoverydeviceconnectioninseries isused to produce domestic hot water without additional costs.It can be used in a wild range of commercial buildings suchas hotels,shoppingmalls,office buildings.Theyare suitable to meet the needs of hotels,and shopping among otherswhere bothair-conditioninganda largeamount of hot waterare indemand.

Cold recoveryseries (cold recovery)

Centrifugalseries(coldrecovery)

Thecentrifugal water source heat pumpusesspecial centrifugal compressor for heat pump,selfdeveloped high performancespray-typeevaporator,andR134arefrigerant; it hasa cooling COPup to 7.7,anda heating COPup to 6.0.Suitable for large industrial and commercial sites. Refrigerating capacity range:20ookW\~7oookW;heating capacity range:2000kW\~700okW.The outlet temperature of chilledwater can beas lowas5 q ,and the outlet temperatureof hotwatercan reach 5 0 ^ { \circ } \mathsf { C } ：

Screwseries(coldrecovery)

Thewatersourcescrewheatpumpunitadoptstwinscrew compressor design.Thiswater source heat pump system hasboth coolingand heating capacity，which enables itto replace the original combination of boiler and air-conditioning device;asa result,a lot of energy can be saved,and the initial equipment investmentisreduced.Thereisneithera boilersystem for heating,norcooling tower forcooling,and there is no pollution and no emissions during use.

Scrollseries (cold recovery)

The2oSTBheat pumpunitadoptsspecialscroll compressor for heat pump.This water source heat pump system has bothcoolingand heating capacity，which enables it to replace the original combination of boilerand air-conditioning device;asaresult,a lotofenergycanbesaved,and the initial equipment investment is reduced.There isneithera boiler system for heating,nor cooling tower for cooling,and there is no pollution and no emissions during use.

Screw type water-cooled heat recovery chiller technical parameters(R22)

Refrigerant:R22 PowerSupply:380V-3P-50Hz

Note:

50STD series conventional centrifugal heat recovery chiller technical parameters

Note:

Water-cooled scroll heat recovery waterunit technical parameters

Refrigerant:R22 PowerSupply:380V-3P-50Hz

Air-source ScrewType Hot Water Unit Technical Parameters

50STEseries magnetic suspensionair-cooled cold water heat recovery centrifugal unit technical parameters

Note:

Air-cooled Scroll Cold Water HeatRecoveryUnitTechnical Parameters

Refrigerant:R22 Power Supply:380V-3P-50Hz

Screwair-cooled heat recoverychiller technical parameters (R22)

Refrigerant:R22 PowerSupply:3𝜑-380V-50Hz

Note:

H.Stars(Guangzhou) Refrigerating Equipment Group Ltd.

Address:No.1 Guoyuan 4th Road,Guangzhou Economic& Technological Development Zone,
HuangPu District, Guangzhou,China Zip Code 510530
Email:sales@hstars.com.cn
Tel: +862062266755 ext. 886
FaX:+862082266081
Website:www.hstarschiller.com
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