LN-60℃~-10℃

Ultra Low Temperature Chiller

Cooling capacity @-55℃6kW~180kW
Power range14kW~300kW
Expansion tank100L~750L
RefrigerantR404A/R23
Weight850KG~5600KG
Place of OriginChina

chillers ultra low temperature chiller water cooled chiller

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Product data download

manual.pdf

Configuration Details

Model	LN-6W	LN-10W	LN-20W	LN-30W	LN-40W	LN-60W	LN-120W	LN-180W
Temperature Range	-60°C~ -10°C
Cooling Capacity At -55°C	6kw	10kw	20kw	30kw	40kw	60kw	120kw	180kw
	5160Kcal/h	8600Kcal/h	17200Kcal/h	25800Kcal/h	344000Kcal/h	51600Kcal/h	103200Kcal/h	154800Kcal/h
Circulation Pump Info	6.6m³/h	9m³/h	15m³/h	25m³/h	25m³/h	25m³/h	/	/
	2.5bar max	2.5bar max	2.5bar max	2.5bar max	2.5bar max	2.5bar max	2.5bar max	2.5bar max
Inlet&outlet connection size	DN-25 PN-10	DN-32 PN-10	DN-40 PN-10	DN-40 PN-10	DN-50 PN-10	DN-50 PN-10	DN-65 PN-10	DN-80 PN-10
Cooling Water at 30 degree	10m³/h	14m³/h	25m³/h	30m³/h	35m³/h	50m³/h	90m³/h	120m³/h
Expansion tank(standard)	100L	175L	350L	500L	600L	750L	/	/
Compressor	Emerson Scroll compressor,Carlyle;Dorin				Carlyle、HANBELL、Fusheng、Bitzer screw compressor

Operation Panel	7-inch color touch screen display, temperature curve record
Control System	PLC&Module，Set temperature difference of refrigeration on & off
Closed Circulation System	The whole system is a 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
Circulation Pump	LNEYA Mangetic Pump
Evaporator	Plate heat exchanger
Condenser	Casing type water-cooled condenser / tube-type water-cooled condenser
Intermediate heat exchanger	Plate heat exchanger
Refrigeration accessory	Oil separators, drying filters, expansion valves, refrigeration solenoid valves, pressure control, mirrors, etc. all use Emerson / Danfoss and other brands
Electric	AC contactors, intermediate relays, circuit breakers, thermal relays, etc. are Schneider / ABB brand
Refrigerant	R404A/R23 mixture R508B
Secondary refrigerant	No corrosive liquid, ethanol water, heat transfer oil etc.
Safety Protection	High pressure protect; water supply cut-off protection; over-current protection; leakage protection; sequential and phase failure protection; High temperature protection; Sensor Failure protection; Liquid low level protection etc. multi-safety protection
Level Indicator	Adopt glass liquid level indication
Piping material	Expansion tank, cold storage tank and circulation pipeline are all made of SUS304
Case material	Channel steel + square tube + cold rolled plate sealing plate spray 7035
Dimension cm	100150185	100150185	205145225	250145225	350160245	350160245	500200260	650200260
Power	16kW	20kW	36kW	64kW	93kW	122kW	200kW	300kW
dB	within 75dB				within 90 dB
Weight （kg）	850	1000	1450	2000	2400	3000	4200	5600
Optional	Optional outside touch screen display controller (separated), the communication line distance is 10 meter
Optional	Optional explosion-proof touch screen control system (ExdeIIBT4), the communication line distance is 15 meter

Product Description

1.Temperature ranges from -5℃ ~ -150℃, can meet different temperature
2. Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK. Bitzer, Copeland, Handbell, fusheng; Plate heat exchanger, Small volume, High efficiency
3. Top imported cold controller; Generator cooling water circuit uses intermediate heat exchanger, improve system reliability and safety.
4. DANFOSS electronic expansion valve, high precision control;
5. Adopt Siemens PLC S7-200/300, LNEYA touch screen, automatic control, temperature curve display, temperature record U disk, fault alarm;
6. Offer machine installation and system test, users only need to finish the installation of refrigerant and cooling water.

Chiller Knowledge

We know that the low temperature chillers are complicated equipment. Even the switch process, if not according to the standard of operation or with no special maintenance, will inevitably lead to a decline in the refrigeration efficiency of the low temperature chillers and will greatly reduce the service life of the them. Here, we will talk about major attention matters when enterprises use low temperature chillers!

1. Refrigerant leakage

Refrigerant leakage will not only affect the refrigeration efficiency of low temperature chillers, but also affect the health of people in and out of the engine room, so the issue of refrigerant leakage must be noted.

2. Pay attention to the load of the low temperature chillers

The large load of low temperature chillers, or overload phenomenon which is more than the rated load, will bring about serious problems including refrigeration efficiency decline, bigger noise, bigger vibration amplitude, excessive consumption of resources, decline in service life and so on which need to pay attention to!

3. Temperature and pressure

It can be said that the parameters related to temperature and pressure are the most important parameters of low temperature chillers. Enterprises should pay attention to the parameters related to the temperature and pressure of the low temperature chillers, and solve them in time, so as to avoid affecting the normal operation of the low temperature chillers.

Paying attention to the points mentioned above has extraordinary importance for extending the service life of low temperature chillers ,and improving the refrigeration efficiency and the use safety of low temperature chillers.