Wuxi Guanya Refrigeration Technology co., ltd
SUNDI -10℃~200℃

SUNDI -10℃~200℃

  • SUNDI -10℃~200℃
SUNDI -10℃~200℃

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

Technical Parameters of Dynamic Temperature 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 theloopoutput as the settings.

SUNDI principle

Model SUNDI-125
Temp. range -10℃~+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 kW 2.5 3.5 5.5 7.5 10 15
capacity kW at
200℃ 2.5 3.5 5.5 7.5 10 15
20℃ 2.5 3.5 5.5 7.5 10 15
-5℃ 1.5 2.1 3.3 4.2 6 9
Circulation pump
L/min bar
20 35 35 50 50 75
2 2 2 2 2 2.5
Compressor Mitsubishi Mitsubishi Emerson copeland vortex flexible
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
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 G3/4 G3/4 G1 G1 G1
Water-cooled type
W(cooling water@20℃)
(water type)mm
450*650*1200 550*680*1450 550*680*1450
550*950*1700 700*1000*1750
(air type)mm
500*850*1300 550*1000*1750 550*950*1700 550*950*1700 550*1000*1750 800*1200*1850
Isolate size
(air type)mm
450*1100*1300 450*1100*1300 450*1100*1300 550*1200*1700 550*1200*1700 700*1000*1750
Positive pressure
(water type)mm
1100*950*1950 1100*950*1950 1100*950*1950 1100*950*1950 1100*950*1950 1200*1100*1950
Weight kg 115 165 185 235 280 300
380V 50HZ
AC 220V 50HZ 3.6kW 5.6kW 7.5kW 10kW 13kW 20kW

Typical Application Of Cooling Heating Temperature Control:

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.

Glycol Chiller System SUNDI -10℃ ~ 200℃, as we can tell from its name, it is to use Glycol as the refrigeration agent for the chiller.

In the all air environment, because of the low temperature in the outdoors, it is impossible to use a cooling tower to supply the inner area directly with the cold air-conditioner. In addition, the cold air in the outdoors could be used directly as refrigerator source,with glycol as refrigerant, it can introduce the natural cold air into the inner area and supply cold air-conditioner. If we need to heat the outer area and provide cooling for the inner area, we can turn off the chiller and still use the boiler or the urban hot water as the heat source to heat the outer area.

Refrigeration principle of glycol chiller system

Install plate heat exchanger in the outdoor, and the outdoor cold air is introduced into the plate heat exchanger by the fan. The glycol solution and the outdoor cold air are exchanged in the plate heat exchanger. The cooled glycol solution enters into the air conditioners in the inner area and exchange with mixed air. Then the mixed air enters into the inner room with lower temperature and supply cooling. The temperature of glycol solution rise up, it comes back to the plant heat exchanger in the outdoor again, exchange heat with the cold air in the outdoor and continue this cycling after the temperature is lowered.  This way of heat exchange is usually used in the heat recycling system.

It is a very energy-saving way that use glycol as a refrigerant to introduce the cold air in the outdoors to supply cooling for the inner area. All we need to do is to install a plant heat exchanger in the outdoor when it works, the cold water equipment closed, opening the fan and the air conditioners can bring cooling for the inner area. In this way, we can save energy and reduce the cost.
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