Wuxi Guanya Refrigeration Technology co., ltd
HR -25℃~200℃

HR -25℃~200℃

  • HR -25℃~200℃
HR -25℃~200℃

  • Product Description
  • System Introduce
  • Knowledge Center

The whole system is a closed liquid circulation system with the expansion of container, expansion of the container and the liquid circulation is adiabatic, and do not participate in liquid circulation, only mechanical connection, regardless of the temperature is a high temperature or low temperature, the tank temperature is limited to 60℃.

The cycle is closed, there is no oil mist at high temperature and no water vapor at low temperature; Wide working temperature range of heat transfer oil; The entire circulation system without the use of the mechanical and electric valve.


1. Wide working temperature range with cooling and heating function, temperature range: -20~200℃.
2. With 2pcs of LED display controller, can show the setting temperature & actual value, and alarm value for overtemperature.
3. Efficient fast, simple topping up liquid.
4. Ensure fast cooling at high temperature and can acheive 200℃ ~ -20℃ temperature control continuously.
5. The cycle system is closed, there is no oil mist and water vapor happend, so as to assure the lab safety and heat transfer fluid lifetime.
6. Use copeland brand compressor, circulation pump, stable performance and reliable quality.
7. Self-diagnosis function; freezer overload protection; high-pressure switch, overload relay, thermal protection device, liquid low level protection, high temperature protection and temperature fault protection.

Model HR-25N HR-35N HR-50N HR-70N HR-100N HR-150N HR-250N
Temperature Range -25℃~200℃
Controller PID adaptive controller
Temperature Control heat-conducting medium outlet temp.control
Temperature Feedback Heat-conducting medium temperature feedback PT100(measure inlet temperature and outlet temperature)
Temp. Accuracy ±0.5℃
Heating Power 2.5kW 3.5kW 5.5kW 7kW 10kW 15kW 25kW
Cooling Capacity 200℃ 2.5kW 3.5kW 5.5kW 7kW 10kW 15kW 25kW
100℃ 2.5kW 3.5kW 5.5kW 7kW 10kW 15kW 25kW
20℃ 2.5kW 3.5kW 5.5kW 7kW 10kW 15kW 25kW
-5℃ 2kW 3kW 4.5kW 6.6kW 8kW 12kW 19kW
-20℃ 1kW 1.8kW 2.8kW 3.8kW 4.6kW 7kW 12kW
Circulation Pump Flow Max20L/min Max35L/min Max35L/min Max50L/min Max110L/min Max110L/min Max150L/min
Circulation Pump Pressure 2BAR 2BAR 2BAR 2BAR 2.5BAR 2.5BAR 2.5BAR
Tank Volume 8L 13L 15L 18L 22L 25L 45L
Be equipped with extra connection of expansion tank(G1/2)
Compressor Mitsubishi Copeland Copeland Copeland Copeland Copeland Copeland
Evaporator Plate heat exchanger
Operation Panel Display setting temperature and outlet and inlet temperature, 7-inch color touch screen
Data Record U disk data export, Excel form, error record
Temperature Record Record setting temperature, outlet and inlet temperature
Safety Protection Self-diagnosis function; freezer overload protection; high pressure switch; overload relay; thermal protection device and other safety protection.
Closed Circulation System The whole system is full closed circulation, there is no oil mist at high temperature and no water vapor at low temperature, pressure do not rise up when system is running. The system will supplement oil automatically at low temperature.
Refrigerant R-404A/R507C
Connection Size G1/2 G3/4 G3/4 G3/4 G1 G1 G1
Dimension(cm) air-cooled 50*85*130 55*100*175 55*100*175 570*100*175 70*100*175 80*120*185 100*150*185
Weight air-cooled 150kg 165kg 235kg 265kg 290kg 320kg 350kg
Power AC 220V 50HZ AC 380V 50HZ AC 380V 50HZ AC 380V 50HZ AC 380V 50HZ AC 380V 50HZ AC 380V 50HZ
4kW 5.5kW (max) 7.5kW (max) 10kW (max) 14kW (max) 21kW (max) 35kW (max)
Case Material Cold rolled steel
Optional MODBUS RTU Protocl,  RS 232 interface
Optional Power 220V 60HZ three-phase,440V~480V 60HZ three phase

Temperature control

 PID adaptive controller.

Temperature control


Temperature control


Temp. accuracy

Control the liquid outlet temp.   ±0.5℃

The compressor

Skop,Tecumseh, Emerson valley wheel, danfoss


Plate heat exchanger

Operation panel

Display setting temperature and testing temperature; 7-inch Touch screen display, record the curve and output excel data

Safety protection

Self-diagnosis function; freezer overload protection; high pressure switch, overload relay,thermal protection device, liquid low level protection, high temperature protection and temperature fault protection.

Closed circulation system.

The whole system is full closed circulation, there is no oil mist at high temperature and no water vapor at low temperature, pressure do not rise up when system is running. The system will supply oil automatically at low temperature.



The related accessories of Heating And Cooling Systems

The selection of heating and cooling system is quite important, not only price and temperature control, but also quality should be taken into consideration. Besides, you should also pay attention to the accessories of heating and cooling system.

The installation of the filter in the pipeline is necessary, for it can effectively prevent the pipeline blockage, the deterioration of heat conduction media and other problems. The negligence about it may cause property loss and safety accidents. What's more, the filter needs to be cleaned or replaced regularly.

Pressure gauge:
The pressure gauge is the key in the cooling and heating equipment. It closely records the pressure of the pipeline and discovers the pressure state of the pipeline in time. It can find the high and low pressure problems in the pipeline in real time and modify it.

Pipe bypass:
The outlet and inlet of heating and cooling system should be connected by three-way and manual valve, then make a proper diversion according to piping pressure.

Manual valve:
Put manual valves on the connection of heating and cooling system and both ends of the components installation, thus the heating and cooling system can be easily disassembled in maintenance, so that reducing the loss of heat conduction medium, and the related valves can be closed in time when in trouble.

The parts of the heating and cooling system are not fully included above. In order to ensure the stable operation of the equipment, we should take full consideration of the temperature range, the pressure range, the use of the environment and other specific knowledge of the components.
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