Wuxi Guanya Refrigeration Technology co., ltd
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Tel: + 86 510 82303782
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province,China
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Chiller Refrigeration System SUNDI-320/420W/430W

Chiller Refrigeration System SUNDI-320/420W/430W

  • Chiller Refrigeration System SUNDI-320/420W/430W
Chiller Refrigeration System SUNDI-320/420W/430W


  • Product Description
  • System Introduce
  • Technical Parameter
  • Knowledge Center

-45℃~180℃

Technical Parameters of Dynamic Temp. Control System

Change the control settings of the method, the response as soon as possible in the process of the system lags behind, be the smallest system overshoot. Controlled by two PID (PID is a variable in each group) control loop structure, known as the two sets of control loops: the main circuit and from the circuit, the main control loop from the loop output as the settings.


Model SUNDI-320 SUNDI-420W SUNDI-430W
Temp. range -30℃~180℃ -40℃~180℃ -40℃~200℃
Control Mode Feedback PID + Our special dynamic control calculation, PLC controller
Temp. control Process temp. control and jacket temp. control model
Temp. difference Set or control the temperature difference between jacket oil and raw material process
Program Editor 10 programs, each program can edit 42 steps
Communication Portocol MODBUS RTU Protocol,RS485 interface
Material temp. feedback PT100 OR 4~20mA or communication(normal: PT100)
Temp. feedback The temp. of three points: the inlet and outlet of equipment,reactor material temp.(external temp. sensor)
Medium temp. acccuracy ±0.5℃
Material temp. accuracy ±1℃
Heating power 2KW 2KW 3KW
Cooling capacity 180℃ 1.5kW 1.8kW 3kW
50℃ 1.5kW 1.8kW 3kW
0℃ 1.5kW 1.8kW 3kW
-5℃ 0.9kW 1.2kW 2kW
-20℃ 0.6kW 1kW 1.5kW
-35℃ 0.3kW 0.5kW
Circulation pump Max10L/min  
0.8bar
Max10L/min  
0.8bar
Max20L/min  
2bar
Compressor Secop Secop French Tecumseh
Expansion valve Emerson thermal expansion valve/danfoss thermal expansion valve
Evaporator DANFOSS/KAORI Plate heat exchanger
Operation Panel 7-inch touch screen,show temp curve\EXCEL data output
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.
Refrigerant R404A/R507C, optional: R448A
Connection size G1/2 G1/2 G1/2
Water-cooled type W(cooling water@20℃) 450L/H
1.5bar~4bar
550L/H
1.5bar~4bar
Dimension(mm) 400*600*870 400*600*870 400*600*1150
Positive ex-proof size(mm) 700*750*1215 700*750*1215
Weight 55kg 55kg 85kg
Power AC 220V 50HZ 2.9kW(max) AC 220V 50HZ 3.3kW(max) AC380V 50HZ  4.5kW(max)
Case material SUS 304 SUS 304 SUS 304
Optional positive pressure ex-proof system add PEX at the end
Optional Optional Ethernet interface, configure the computer operating software
Optional Optional outside touch screen display controller(separated),the communication line distance is 10 meter.
Optional Power Optional power 100V 50HZ single-phase,110V 60HZ single-phase, 230V 60HZ single-phase, 220V 60HZ three-phase,440V~460V 60HZ three-phase


Typical application of refrigeration heating temperature control system:

Dynamic thermostatic control of cold and heat source of high pressure reaction kettle, dynamic thermostatic control of double layer glass reaction kettle, and dynamic thermostatic control of cold and hot source of double-layer reactor.

Microchannel reactor thermostatic control, small temperature control system, steam - feeding system temperature control, material low temperature aging test.
The thermostatic control of the combined chemical cold source heat source, the cooling heating of the semiconductor equipment and the heating temperature of the vacuum chamber are controlled.

Advantages and functions of temperature control system of refrigeration:

Temperature range from 120 to 350, performance superior, unique, high - precision, intelligent temperature control.
High cooling power from 0.5 to 1200kW, highest production stability and repeatable results.
Multi-function alarm system and safety function, use plate heat exchanger, tube type heater to increase heating and cooling rate.
7-inch and 10-inch color TFT touch screen graphics display, use magnetic drive pump, no re-seal leakage problem.
Full airtight system, extended thermal conductivity liquid life, very wide temperature range, no need to change liquid media.
Ultra-high temperature cooling technology can be cooled directly from 300 degrees of high temperature.
The principle and the function has many advantages to using staff: because only expansion of cavity in the body heat conduction medium contact with oxygen in the air (and expansion tank temperature at room temperature to 60 degrees), can achieve lower heat conduction medium absorbed by oxidation and the risk of air moisture.
No heat conduction medium evaporates at high temperature, and it can be achieved -80 ~ 190 degrees, -70 ~ 220 degrees, -88 ~ 170 degrees, -55 ~ 250 degrees, -30 ~ 300 degree continuous temperature control without pressurization.



Adopt full closed pipe design, adopt high-efficiency plate heat exchanger, reducing the demand for heat conduction liquid, improve the heat utilization rate of the system, reach the rapid lifting temperature.Thermal conductive medium in a closed system, with a container, expand the heat-conducting medium not participate in circulation in the container, whether high or low temperatures, expansion tank temperature to room temperature to 60 degrees, can reduce the heat conduction medium in running the risk of absorbing the moisture and volatile.

Impact and Solution of Excess Exhaust Temperature of Industrial Chiller Units

Industrial water chiller compressor exhaust temperature determines whether the equipment can stably and efficiently run. The common problem of compressor is excess exhaust temperature. Once the situation appears, it is easy to make industrial chiller high pressure and high temperature, overload, reduced working efficiency and poor industrial water chiller compressor refrigerating capacity. It can also lead to other problems. So how to reduce the exhaust temperature of industrial water chillers and cool the compressor, we are the experts to develop water chiller refrigeration system 320/420 w / 430 w experts, so today we will recommend a few solutions for you:

Increase cooling water flow and heat ventilation of water tank and water tower.
Air-cooled water tank of industrial cold water machine and cooling water in industrial cooling towers are to cool the condenser and transfer heat which can take away the heat generated by the compressor work. If you can guarantee the cooling water flow rate and air cooling industry cold water machine water tanks, water chiller water tower cooling ventilation ability, you will keep cooling water temperature to within the limits defined, so as to maximize the cool the compressor.

Reduce the exhaust temperature of the refrigeration compressor directly.
You can start from decreasing compression ratio and the load of the compressor. Lower compression ratio will make compressor low efficient, but it can solve the problem of excess exhaust temperature of compressor.
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  • TEL:+ 86 510 82303782
  • FAX:+ 86 510 88587187
  • EMAIL:sales@cnzlj.com
  • ADDRESS:No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province,China