A open type water-cooled scroll chiller is a type of refrigeration system used for cooling applications that utilizes a scroll compressor and a water-cooled condenser. It is designed to remove heat from a process or space by circulating chilled water through the system.
The main components of a water-cooled scroll chiller include:
- Scroll Compressor: The scroll compressor is responsible for compressing and circulating the refrigerant within the system.
- Water-cooled Condenser: The water-cooled condenser is a heat exchanger that transfers heat from the refrigerant to the cooling water, allowing the refrigerant to condense and release heat.
- Expansion Valve: The expansion valve regulates the flow of refrigerant into the evaporator, controlling the pressure and temperature of the refrigerant.
- Evaporator: The evaporator is a heat exchanger where the chilled water absorbs heat from the process or space being cooled, causing the refrigerant to evaporate.
- Water Circulation System: A water-cooled scroll chiller requires a separate water circulation system, including a cooling tower or water source to supply and remove heat from the condenser.

The main parts of a open-type water-cooled water chiller typically include:
Compressor: The compressor is responsible for compressing the refrigerant vapor, raising its temperature and pressure.
Condenser: The condenser is a heat exchanger where the high-pressure, high-temperature refrigerant vapor releases heat and condenses into a liquid state when it comes into contact with the cool water circulating through the condenser.
Evaporator: The evaporator is another heat exchanger where the liquid refrigerant absorbs heat from the water or air being cooled. As the refrigerant absorbs this heat, it evaporates into a vapor state.
Expansion Valve: The expansion valve regulates the flow of refrigerant from the high-pressure side to the low-pressure side of the system, creating a pressure drop and allowing the refrigerant to evaporate and absorb heat efficiently in the evaporator.
Water Circulation System: The water circulation system includes pumps, pipes, and a water reservoir or cooling tower (if required) to constantly circulate the chilled water through the chiller's condenser and evaporator, facilitating the heat exchange process.
Control Panel: The control panel houses the electrical controls, sensors, and display interface for monitoring and controlling the chiller's operation. It allows users to set and adjust temperature parameters, monitor system performance, and ensure safe and efficient operation.
These components work together to extract heat from the water or air being cooled and transfer it to the surrounding environment through the water-cooled condenser. This process helps maintain the desired temperature of the chilled water or cooling medium in various industrial applications.

Specifications:
Model Item | OMC-3W | OMC-5W | OMC-8W | OMC-10W | OMC-12W | OMC-15W | OMC-20W | OMC-25W | OMC-30W | OMC-40W | OMC-50W | ||
Cooling Capacity | KW | 9 | 15 | 24 | 30 | 36 | 45 | 60 | 75 | 90 | 120 | 150 | |
Kcal/h | 7740 | 12900 | 20640 | 25800 | 30960 | 38700 | 51600 | 64500 | 77400 | 103200 | 129000 | ||
Ton | 2.5 | 4.2 | 6.8 | 8.5 | 10.2 | 12.8 | 17.0 | 21.3 | 25.5 | 34.1 | 42.6 | ||
Btu/h | 30716 | 51194 | 81911 | 102389 | 122866 | 153583 | 204778 | 255973 | 307167 | 409556 | 511945 | ||
Input power | KW | 2.62 | 4.5 | 6.75 | 8.25 | 10.2 | 12.75 | 17.2 | 20.95 | 26.5 | 34 | 43 | |
Power supply | 3 PH-380V 50Hz | ||||||||||||
Temperature Range | ºC | 5-35 | |||||||||||
Refrigerant | Type | R22(R407C/R410A/R134A) | |||||||||||
Compressor | Control Mode | Capillary | Expansion Valve | ||||||||||
Type | Scroll type / Piston Type | ||||||||||||
Power | KW | 2.25 | 3.75 | 6 | 7.5 | 9 | 11.25 | 15 | 18.75 | 22.5 | 30 | 37.5 | |
Chilled water | Tank Volume | L | 60 | 70 | 150 | 180 | 240 | 300 | 400 | 400 | 540 | 630 | 700 |
Tank Material | SUS304 Stainless Steel | ||||||||||||
Pipe Diameter | 1-1/2" | 1-1/2" | 1-1/2" | 1-1/2" | 1-1/2" | 2" | 2" | 2-1/2" | 2-1/2" | 3" | 3" | ||
Pump | Lift | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | |
Power | 0.37 | 0.75 | 0.75 | 0.75 | 1.2 | 1.5 | 2.2 | 2.2 | 4 | 4 | 5.5 | ||
Evaporator | Type | Tank with coil(Shell and tube) | |||||||||||
Chilled water flow | m³/h | 1.5 | 2.6 | 4.1 | 5.2 | 6.2 | 7.7 | 10.3 | 12.9 | 15.5 | 20.6 | 25.8 | |
Condenser | Type | Shell and tube | |||||||||||
Cooling water flow | m³/h | 1.95 | 3.37 | 5.26 | 6.62 | 7.95 | 9.89 | 13.26 | 16.50 | 20.06 | 26.45 | 33.20 | |
Safety Protection | Compressor overheating protection, over-current protection, high and low pressure protection, over-temperature protection, flow protection,reversed and lacking phase protection, exhaust overheating protection. | ||||||||||||
Dimension | Length | mm | 850 | 900 | 1100 | 1250 | 1300 | 1450 | 1600 | 1620 | 1650 | 1900 | 2000 |
Width | mm | 500 | 500 | 680 | 600 | 600 | 780 | 850 | 850 | 850 | 1000 | 1000 | |
Height | mm | 880 | 980 | 1300 | 1300 | 1350 | 1350 | 1460 | 1480 | 1500 | 1650 | 1700 | |
Weight | KG | 130 | 160 | 300 | 450 | 680 | 740 | 820 | 900 | 1100 | 1300 | 1500 |
The water-cooled scroll chiller offers several advantages, including:
- High Cooling Efficiency: Water-cooled systems generally provide higher cooling efficiency compared to air-cooled systems due to the effectiveness of water as a heat transfer medium.
- Quiet Operation: Water-cooled scroll chillers tend to operate more quietly compared to air-cooled systems since the condenser fan noise is eliminated.
- Flexibility: Water-cooled scroll chillers can be installed in various environments since they do not rely on ambient air for cooling. They are suitable for indoor applications.
- Energy Efficiency: Water-cooled systems typically have higher energy efficiency ratings due to the ability to use cooler water temperatures for heat rejection.
- Reduced Environmental Impact: Water-cooled scroll chillers conserve water resources by recirculating water through the system rather than constantly consuming fresh water, making them more environmentally friendly compared to cooling towers.
- Greater Cooling Capacity: Water-cooled scroll chillers generally have higher cooling capacities compared to their air-cooled counterparts, making them suitable for applications with significant cooling requirements.
The application of water-cooled scroll chillers can be found in various industries, including HVAC systems for large buildings, industrial process cooling, data centers, pharmaceutical manufacturing, and food and beverage processing, where precise and reliable cooling is necessary.



FAQ:
Q1: Could you help us to recommend the model for our project?
A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:
1)Cooling capacity;
2)chilled water inlet and outlet temperature
3)chilled water flow
4) Refrigerant;
5) Ambient temperature;
6)Voltage;
7) Be used for what industry?
8)Any other special requirements
Q2: How to ensure your product with good quality?
A2: All our products with CE certificate. And use the well-know brand compressors and refrigeration accessories . All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users.
Q3: What's the warranty?
A3: 15 months warranty for free if confirmed by both side damage in the quality reason.
Q4: What's your payment term?
A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.
Q5: Are you a manufacturer?
A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance .
The control box design make the unit safety and stably.
Q6: How can i Place an order
A6: Send inquiry to us or Call us.