Water Cooled Low Temperature Chiller -35 degree
Water Cooled Low Temperature Chiller -35 degree
  • Features
  • Technical Data
  • Application
Features
1. Compressor: adopt international brand semi closed 5:6 non symmetrical double screw type air cooled special type compressor.
2. Heat exchanger: evaporator use high efficient shell and tube heat exchanger, condenser use high efficiency copper pipe+hydrophilic aluminum fin; with high pressure, high heat transfer efficiency, maintenance free, long service life, etc.;
3. Control system: using SIEMENS control system, advanced PLC control technology, can accept the programming, perfect communication function;
4. The electrical system: SIEMENS, Schneider and other national brands of electrical components, waterproof type control cabinet;
5. Man-machine interface: Chinese and  English man-machine interface, touch type liquid crystal display operation, simple procedures, one key to start, automatic operation;
6. Chiller maintenance: chiller adopts integral design, compact structure, simple, strong corrosion resistance, with waterproof control cabinet, to ensure that the unit can be placed outside the long-term is not easy to fade, corrosion.
7. The choice of environmental protection type R407C or R134a refrigerant.
 
Technical parameter table (water cooled low temperature chiller -35℃ double compressor)
Item              Model SLW-
17.1g 23.1g 30.1g 33.1g 41.1g 44.1g 52.1g 55.1g 60.1g 65.1g
Nominal cooling capacity kW 17 23 30 33 41 44 52 55 60 65
104kCal/h 1.5 2 2.6 2.8 3.5 3.8 4.5 4.7 5.2 5.6
Operation control mode PLC automatic control of programmable controller
Power supply 380V/3N~/50Hz
Compressor Type 5-6 Asymmetric semi enclosed twin screw compressor
Qty 1
Start type Y-△
Capacity control 0-16.5-33-50-66-83.5-100% 0-12.5-25-37.5-50-62.5-75-87.5-100%
Input power kW 17.2 22.9 29.3 32 39.8 42.6 48.8 51.4 56.5 61.5
Input power A 29.9 39.8 51 55.7 69.3 74.1 84.9 89.4 98.3 107
Evaporator Type High efficient shell and tube heat exchanger
Water volume m3/h 3.8 5 6.5 7 8.8 9.5 11.3 11.8 13 14
Connection pipe diameter   DN40 DN40 DN40 DN40 DN50 DN50 DN50 DN50 DN50 DN65
Water pressure drop kPa 47 48 48 48 48 49 50 50 54 58
Condenser Type High efficient shell and tube heat exchanger
Water volume m3/h 7.8 10.4 13.5 14.8 18.4 19.7 22.9 24.2 26.5 28.7
Connection pipe diameter   DN40 DN40 DN50 DN50 DN65 DN65 DN65 DN65 DN65 DN80
Water pressure drop kPa 44 45 45 45 46 47 48 49 55 58
Refrigerant Type R22
Filling quantity kg 11 15 20 22 27 29 34 36 39 43

Dimension
Length mm 2455 2455 2500 2570 2860 2860 2860 2860 2860 3180
Width mm 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100
height mm 1450 1450 1450 1524 1550 1590 1630 1680 1740 1820
Unit weight kg 700 730 900 1090 1140 1400 1430 1470 1500 1780
Running weight kg 760 770 980 1220 1320 1620 1660 1700 1760 2000

Remark:
1.Nominal operating conditions:chilled water in/out temperature -31℃/-35℃; cooling water in/ot temperature 30℃/35℃.
2.Temperature condition:chilled waterout water temperature range is -37℃~-27℃,cooling waterout water temperature range is 19℃~33℃
3.Chilled water side use 55%(V/V) ethylene glycol solution or 28%(m/m)calcium chloride solution as antifreeze;
4.Water side design of evaporator and condenser under pressureis 1.0MPa.
5.Evaporator water side fouling factor under nominal operating condition is 0.018m2•℃/kW,condenser water side fouling factor under nominal operating condition is0.044m2•℃/kW;
 
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