Chiller Solutions to Match CRAC Brands
Why Choose Our Chiller Unit for CRAC?
- Chillerone has obtained the certifications of ISO 9001, ISO 14001, and ISO 45001.
- The CRAC chiller products we manufacture have been certified by AHRI.
- Before leaving the factory, each CRAC Chiller undergoes 100% full-load and partial-load tests.
- Chillerone’s annual production capacity exceeds 2,000 units, and it has the capability to deliver large-scale data center projects in batches.
- Chillerone has so far obtained more than 50 patents in the field of chillers.
- We have been in service in over 80 countries and regions around the world.
Professional CRAC Chiller Supplier Providing Custom Solutions
The CRAC chiller is built to cool a data center with steady precision. It moves heat in an efficient way and uses smart settings. The unit uses a modular layout, so it fits different setups. It also works across changing weather and shifting load levels. If you need more capacity later, you can expand it. Overall, it delivers a steady cooling supply for your site.
Chillerone focuses on research and making refrigeration equipment. We handle the full process, from choosing the right unit to installation and ongoing service. If you contact us, we respond quickly to match your needs.
Our Products
This setup runs with high efficiency. It works well for big data centers and for computer rooms with dense racks. Cooling can stay on for long periods.
There is no cooling tower needed. The setup is easy to fit in many places. It works well for small and mid-sized data centers. It also fits edge sites and places where water is limited.
Spraying water helps it turn into vapor, and that takes heat away from the area. It fits well in dry regions, or in jobs where building cooling towers is not practical.
Ensure Continuous Cooling Supply
Data centers often get hit when power goes out, or cooling stops working. The CRAC Chiller of Chillerone is built with N+1 or 2N backup. So if one unit needs service or fails without warning, the room temperature conditions can stay steady. That helps lower the chance of downtime. This unit can also meet strict uptime needs in fields like finance and cloud services. You should not worry about how dependable the cooling source is.
Modular Architecture
Chillerone’s CRAC chillers use standard module sets. This lets you start small and add more later without changing the whole system. You can also pick a unit size that fits the cabinet’s present power load. As your business grows, you only need to add modules to raise the cooling output. No need to swap the main unit. This approach can help with cash flow. It can also cut the pressure of a large upfront spend. It leaves room for later upgrades too.
Intelligent Remote Maintenance
The CRAC chiller from Chillerone comes with built-in control logic and an IoT connection. You can link it to the DCIM or BMS you already use. It can also send fault alerts and support remote checks. As a result, your staff does not have to keep making on-site visits. You can plan service work ahead of time too. That helps cut down surprise shutdowns. Over time, it makes your cooling system easier to run and helps keep costs down.
Applications of CRAC Chiller
Chillerone makes CRAC chillers for places that need a lot of cooling, where compute loads are high and the setup is large. These chillers are built with backup cooling in mind, so cooling stays on without major interruptions. That can help lower PUE.
Chillerone offers air-cooled and modular CRAC chillers that fit many site setups. You usually do not need a cooling tower. Day-to-day operation and upkeep are straightforward. This makes them a good match for smaller to mid-size data centers.
Chillerone offers CRAC chillers that work across a broad temperature range. These units are often placed in 5G base station aggregation rooms. They are also used at edge sites. With this setup, the communication equipment gets steady heat removal.
Each day, just look over a few key parts. Check the compressor first. Then inspect the condenser. Next, go through the water system. After that, review the electrical system.
Every three months, plan a preventive visit. During that time, clean the heat exchanger. Also check the refrigerant. Don’t forget the filters.
If you need replacements, the spare parts for Chillerone water chillers are usually easy to find. We can also help with remote support when possible. If needed, we can send a team on site. This should help cut down unexpected downtime.
What you pay for the chiller is not set by the unit price alone. Several items can change the final quote, such as the cooling capacity, the cooling type (water-cooled or air-cooled), the compressor make, and the energy efficiency rating. You also need to look at the controls and the BMS link, plus the redundancy plan. Some buyers may want custom options, so that can affect the number too. Do not forget the product certification tests as well.
The supply water temperature is commonly set from 18°C-20°C. That said, the final number should fit the CRAC coil design. It also depends on what the computer room air is like, including both temperature and humidity. You should also consider the IT load. Then there is the energy efficiency goal to meet. If you are trying to cut energy use, you can raise it above 20℃. This may help you use the natural cooling window more effectively. Before you do that, you should check that the heat transfer at the terminals is sufficient.
Check the floor space and the structural load first. Also verify the power line, the water line, the heat removal plan, and the BMS link. The existing data center can often be updated. But before you start, review the current cooling demand, the pipe layout, the power wiring, and the heat exhaust situation. It is best to choose the equipment after an on-site look by a skilled manufacturer team. Chillerone can handle that review for you.
What Is a CRAC Chiller and How Does It Work?
What Is a CRAC Chiller?
The CRAC unit chiller is built to make chilled water for precision air conditioning in a data room. It does not cool the room air on its own. What it does is create low-temperature chilled water first.
After that, the chilled water goes to the CRAC or CRAH units. Those units then use their coils to cool the warm air that is in the room.
So, in simple terms, the chiller is the cold side. The CRAC or CRAH unit is the end device. The two parts work together through the chilled water loop.
How Does It Work?
Air in the computer space gets pulled into the CRAC or CRAH unit. Heat then moves out with the chilled water as it goes through the cooling coil. As the water travels, its return temperature rises. After that, the warmer water goes back to the Chiller. In the Chiller, the refrigerant takes in heat from the chilled water in the evaporator.
Next, the compressor squeezes the refrigerant, and the refrigerant warms up. Then the condenser releases this heat to either the cooling water path or to the air. The chilled water ends up colder again, and it is sent to the devices that need cooling. This loop keeps going. The aim is to hold the computer room temperature steady.
The Necessity of Understanding the Principle
Knowing how a chiller works helps you check a few key points.
- The chiller cooling output has to fit the end load. If it does not, the air temperature from the supply side can drift and become hard to control.
- The chilled water temperatures on the supply line and the return line matter. They change how efficiently the system runs and how long free cooling can last.
- System dependability is not only about the chiller. It also relies on the pump, the piping, the end units, and the controls working together, not one part alone.
How Do I Choose the Right CRAC Chiller for My Data Center?
Start by Working out the Cooling Load
The first task for you is not to shop by brand. It is to figure out the exact amount of cooling your data center needs. You should total the heat from the IT gear, the UPS system, lighting, and the power distribution setup. Also include what you expect to add over the next 3 to 5 years. If you get the cooling load wrong, then the rest of the decisions will be off too.
Make Sure the System Operating Conditions Are Clear
First, list the chilled water supply and return temperatures. Also note the outdoor extreme temperature. Then give the part-load operating time. Most data centers do not run at full load for long periods. Because of that, IPLV matters more than full-load COP. If your site has low wet-bulb temperature, raising the supply water temperature can extend the natural cooling period. That change can also lower electricity use over the year.
Selection Type and Reliability
You can pick air cooling or water cooling by looking at what is available at the site.
If the area has little water, then small and mid-size data centers should lean on air cooling. If the site has plenty of water and big facilities are the norm, and if the goal is higher energy efficiency, then water cooling is the better choice.
After that, set the redundancy level. Tier III is often paired with N+1 redundancy. Tier IV is often paired with 2N redundancy. Redundancy is not only about getting one more chiller.
It also covers pumps, power supplies, piping, and the automatic transfer system.
Summary of Selection Suggestions
Picking the right option means you weigh the first cost against what it will cost over the years. Try to lay out the load curve in a clear way first. Then note the site conditions. Next, set the energy efficiency goals and decide what uptime you need. After that, have a trained manufacturer shape a fit for your case.
Factor in the risk of shutdowns too, especially across a five- or ten-year span. If the choice is made well, the money saved on electricity and the losses you avoid from downtime should be more than the extra price you pay for the equipment.
What Is the Difference Between an Air-Cooled and Water-Cooled CRAC Chiller?
- An air-cooled chiller has a condenser that gives off heat by moving air across it with fans. This setup does not depend on a cooling tower.
- A water-cooled chiller uses its condenser in a different way. Heat goes from the condenser into the cooling tower. The condensate circuit supports that transfer, and heat is released as some of the water evaporates.
Both chillers work under the same basic refrigeration idea. The main change is how they handle heat removal on the condenser side.
A Simple Comparison Table
| Comparison | Air-Cooled | Water-Cooled |
| Heat Rejection Method | Air | Cooling Tower Water Evaporation |
| Cooling Tower | Not Required | Usually Required |
| Water Consumption | Low | Higher |
| Installation Complexity | Simple | More Complex |
| Energy Efficiency | More Affected by Ambient Temperature | Usually Higher |
| Applications | Small and Medium Data Centers, Water-Scarce Areas | Large Data Centers, High-Density Applications |
- Air-cooled setups usually go in fast. They also cost less at the start. Day-to-day upkeep is not hard either.
- Water-cooled systems tend to use energy more efficiently. Bigger water chillers can run at full load with power around 0.55 kW per ton. Still, they need cooling towers, pumps, and water treatment. Because of that, the upfront cost is higher. The work is also more complex over time.
So instead of asking, “Which is better?”, try this. Ask, “For my site layout, water supply, power rates, and availability needs, which option fits best?”Before you pick a cooling method, it helps to run a full life cycle cost study. That way, the final choice is based on total cost, not just first cost.
What Are the Differences Between CRAC Chillers and Ordinary Industrial Chillers?
Both a CRAC chiller and a typical industrial chiller use the vapor compression cycle. Even so, the target use is not the same. A CRAC unit is built for server rooms and data halls. Regular industrial chillers are meant for plant work like product processing and machine cooling.
Here Are the Main Gaps
- One: where they are used. A CRAC chiller goes with IT rooms and data centers. An industrial chiller fits manufacturing lines and process areas.
- Two: how the temperature must behave. A CRAC chiller aims for steady and tight control. Industrial units are often set around a fixed process setpoint.
- Three: how they handle uptime. CRAC systems are made for running all day, every day. They also use redundancy such as N plus 1 or 2N setups. Industrial chillers may be focused more on the process need than on backup capacity.
- Four: how the system is managed. CRAC chillers are expected to work with BMS or DCIM. They also support remote checks and alerts. Industrial chillers often stay focused on local process readings.
- Five: what matters in the design. CRAC units put priority on dependable service, low energy use, and nonstop operation. Industrial chillers put priority on meeting the cooling demand of the process.
In short, if you pick the cooling source like you would for a plant, you can miss points like redundancy, round-the-clock use, and tight temperature control. That can raise the chance of a shutdown. The core point for a CRAC chiller is simple. It is made to match the cooling needs of a computer room. When you buy one, ask the maker directly. Is it built for data centers? Does it support N plus 1? Can it link to my BMS? These questions matter more than only looking at cooling capacity.
Should the Chiller of the Data Center Be a Screw Type or a Centrifugal Type?
The screw chiller fits well for medium to large cooling duties. Its design is straightforward. It also runs well when the load is not full. Output can be adjusted smoothly from 10% up to 100%.
The centrifugal chiller is for very large cooling duties. It performs with strong efficiency when operating near full load. This type works best in big central cooling setups. At low loads, it can run into surge issues. It also needs more complex control methods.
Simple Comparison
| Comparison Item | Screw Type | Centrifugal Type |
| Typical Capacity | Small to medium to large | Large to extra large |
| Part-Load Performance | Good, wide adjustment range | Excellent, but requires anti-surge protection |
| Large Data Centers | Applicable | Commonly used |
| System Complexity | Relatively simple | More complex |
| Application Scenarios | Flexible, medium-to-large projects | Extra-large centralized cooling |
For projects that need mid-range cooling and deal with big swings in demand, screw chillers can fit better. They are often seen as steady when the load changes.
When the required cooling is very large, and the load stays fairly even, centrifugal units tend to work more efficiently. In that case, their energy performance can be a clear win.
Before you pick a unit, look at these items. Check the cooling capacity size. Review the load profile. Decide what energy use goal you must meet. Think about how much backup or redundancy you need. Also consider the space in the equipment room.
It is a good idea to have a qualified manufacturer review your load data. They can then run a proper selection study based on how your load behaves.
How Does a CRAC Chiller Implement a Redundant Configuration?
The Core Idea Behind Redundancy
You start with N, which is the count of units needed for the design load. With N+1, you keep that base and add one extra backup unit. Even if something goes wrong, the cooling load can still be met. With 2N, you set up two separate refrigeration systems. Each one can handle the full load on its own. If one system stops working, the other keeps running. With 2(N+1), you use two systems that are each built to be N+1, so you get extra protection.
Redundancy Is More Than Adding One More Chiller
Real redundancy is in the full system, not only in the chillers. It covers the count of chillers, pumps, power supplies, pipes, valves, the control system, and the way automatic changeover works. If you only add one more chiller, but the pumps are not backed up and the power supply is not backed up, cooling will still be lost when a failure happens. Also, the changeover logic cannot be left untested. It needs checks to confirm it will actually switch when a failure occurs.
Summary
More redundancy often means higher upfront cost. It also means you have less chance of hours of downtime. During the design work, it helps to state the availability goal in a clear way. After that, ask the vendor to deliver a full redundancy approach. Include a switching test report as part of that package.
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