Water Cooled Chiller

Water cooled chiller is an efficient industrial refrigeration equipment that uses water circulation for heat dissipation, and has the characteristics of energy saving, stability, and low noise. The core components adopt imported compressors and high-efficiency condensers, with a wide range of refrigeration capacity and temperature control accuracy of ± 0.1 ℃~± 2 ℃, suitable for precision temperature control requirements. The equipment is equipped with multiple safety protections, such as overload, antifreeze, and water level monitoring, to ensure stable operation.

Mach cooling can provide customers with a variety of cooling equipment and processes, which mainly include closed-circuit cooling towers, open cooling towers, air coolers, and industrial water tanks. At the same time, it produces and operates various specifications of cooling tower packing, cooling tower fans, cooling tower motors,reducers, and other fiberglass cooling tower accessories. It also undertakes cooling tower renovation and maintenance services. The company's products can be widely applied in areas such as high-speed railways, precision air conditioning, metallurgy and forging, oil and power, chemical and pharmaceutical industries, and heat treatment.

Water Cooled Chiller Video

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Water Cooled Chiller Principle of Operation

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The water-cooled chiller achieves cooling through a refrigeration cycle system, mainly composed of four core components: compressor, condenser, expansion valve, and evaporator.

• Compression process: The low-temperature and low-pressure refrigerant gas is compressed by the compressor into high-temperature and high-pressure gas, which enters the condenser.

• Condensation and heat dissipation: High temperature refrigerant exchanges heat with water in the condenser, releasing heat and condensing into high-pressure liquid, which is then carried away by the cooling water.

• Throttling and pressure reduction: High pressure liquid refrigerant is throttled by an expansion valve to become low-temperature and low-pressure wet vapor, which enters the evaporator.

• Evaporative heat absorption: Low temperature refrigerant absorbs heat from circulating water in the evaporator, causing the water temperature to decrease, while evaporating into gas and re entering the compressor cycle.

This process continues to operate, stabilizing the temperature of the circulating water within the set range, meeting industrial cooling needs, and featuring high efficiency, energy saving, and precise temperature control.

Water Cooled Chiller  Feature

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• Overload protection: The compressor comes with built-in overload protection relay

• Fault alarm: Chinese and English display panel with built-in fault alarm function

• Energy saving and environmental protection: pre-set temperature according to demand, automatic start stop, greatly reducing users' electricity consumption

• Low noise: The imported Panasonic compressor runs very stably, with a noise level 5% lower than its peers

• Strong heat dissipation efficiency: Different cross-sectional areas between capillaries with a diameter less than 1mm and copper pipes are used to instantly amplify the refrigerant, thereby achieving rapid cooling effect

• Efficient and stable: Using Panasonic compressors from Japan, greatly improving compression efficiency, with an efficiency about 20% higher than miscellaneous compressors on the market.

Water Cooled Chiller Main Parts

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Electrical control cabinet:  Schneider brand overload protector from Germany, equipped with a comprehensive electronic protection system, high and low voltage abnormal protection device, and electronic time delay for compressor start-up

High efficiency water tank evaporator:  Equipped with automatic water replenishment and water level protection devices, it eliminates the need for an expansion water tank during engineering installation, making it easy to install and maintain quickly. It is also suitable for special occasions such as large temperature differences and small flow rates.

Water pump:  High efficiency, low energy consumption, large flow rate, high head, low noise, long service life, percentage pure copper coil, can be customized according to customer needs for caliber and power, as well as customized stainless steel water pump or enlarged water pump.

Condenser:  Shell and tube condenser, with large heat dissipation, high heat transfer efficiency, not easy to block, built-in external threaded high-efficiency copper tube, high-strength sealing structure, accelerates cooling speed. Ensure good heat exchange efficiency.

Water Cooled Chiller Prameter

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Project	Model	3HP	5HP	6HP	8HP	10HP	12HP	15HP	20HP	25HP	30HP	40HP	50HP
Volttage	380V/50HZ/3PHASE
Cooling Capacity	Kcal/h	7188	11266	13674	17544	22532	34400	35730	47640	62350	71460	95280	119100
	kw	8.1	13.5	16.9	24.9	28.1	35	40.5	54	60	81/84	108	135
Refrigerant	Name	R22 R407C
	Control mode	Capillary
Compressor	Type	Whirlpool-type
	Power（HP)	3	5	6	4HP*2	5HP*2	6HP*2	5HP*3	10HP*2	12.5HP*2	10HP*3	13.3HP*3	12.5HP*4
Evaporator	Type	Water tank coil type
	Water flow（L/min）	100	100	100	200	200	200	220	256.5	251	360	650	860
	Water tank（L）	50	60	60	130	130	125	182	214/240	220/280	240/320	260/300	320
	Pipe Size（inch）	1	1	1	1.5	1.5	1.5	2	2	2	2	2	2
Pump	Power（kw）	0.75	0.75	0.75	1.5	1.5	1.5	1.5	2.2	1.5/2.2	2.2	3/4	3.75
	Lift（m）	15	15	15	18	18	18	18/30	18/20	18/20	20/18	20/31	30
Safeguard	Panel	Compressor overheat protection, overcurrent protection,high and low pressure protection, Overtemperature protection,flow protection phase sequence/missing phase protection,exhaust overheat protection, Automatic warning system for substandard cooling water
	High/low pressure installation
	Filter
	Phase sequence maintenance apparatus
	Contactor
	Master switch
Complete machine description	Water cooled weight（kg）	150	160	160	280	300	300	360	460	530	560	630	980
	Water cooled size（cm）	87*55*100	87*55*100	87*55*100	134*73*130	134*73*130	134*73*130	159*73*131	165*68*145	175*68*145	175*77*158	240*200*200	240*200*200
	Surface treatment	Main board 2mm,sealing plate 1.5mm

Water Cooled Chiller Factory Show

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Water Cooled Chiller Certificate

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Water Cooled Chiller Application

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Water cooled chillers are widely used in commercial central air conditioning, industrial processes, and data centers for efficient cooling through water circulation. They have the characteristics of high energy efficiency and strong stability, but require supporting cooling towers and regular maintenance of water quality. Suitable for scenarios with high cooling demand, it has better long-term operational economy than air-cooled units.

Water Cooled Chiller Project Performance

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Water Cooled Chiller FAQ

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1. Q: What is the difference between water-cooled chillers and air-cooled chillers?

A: Water cooled chillers dissipate heat through cooling water (cooling towers), resulting in higher efficiency and suitable for large cooling capacity requirements; Air cooled chillers dissipate heat through fans, which are easy to install but have low efficiency, making them suitable for small or water scarce areas.

2. Q: What scenarios are water-cooled chillers suitable for?

A: Suitable for commercial buildings (shopping malls, hotels), industrial processes (injection molding, laser cutting), data centers, laboratories, and other occasions that require stable and efficient cooling.

3. Q: Why does a water-cooled chiller need a cooling tower?

A: The cooling tower is used to dissipate the heat absorbed by the condenser through water evaporation, maintaining the efficient operation of the chiller, otherwise the system will overheat and shut down.

4. Q: What is the energy consumption of water-cooled chillers?

A: Compared to air-cooled units, water-cooled units have higher energy efficiency (COP value) in high-temperature environments and are more energy-efficient for long-term operation, but require additional calculation of the energy consumption of the cooling tower and water pump.

5. Q: What are the requirements for the quality of cooling water?

A: Regular water quality testing is required to prevent scaling, corrosion, and microbial growth. Corrosion inhibitors and fungicides are usually added, and an appropriate pH value (7-9) is maintained.

6. Q: How often does a water-cooled chiller need maintenance?

A: It is recommended to check the cooling tower, water pump, and filter every quarter, clean the condenser pipeline every year, and regularly replace the water treatment agent.

7. Q: Does the water-cooled chiller make a lot of noise?

A: The host has low noise (mainly from the compressor), but the cooling tower fan may produce some noise. Low noise models can be selected or sound insulation measures can be installed.

8. Q: How does a water-cooled chiller prevent freezing in winter? 

A: Antifreeze (ethylene glycol solution) should be added in cold regions, or electric heat tracing insulation should be used to avoid freezing of cooling water and damaging pipelines.

9. Q: How to choose a suitable water-cooled chiller?

A: Need to calculate cooling demand (kW/RT), examine energy efficiency ratio (COP/IPLV), match cooling tower capacity, and consider installation space and operation and maintenance costs.