
( Brand: Smc ), ( Manufacturer Part Number: HRS024-AF-20-T ), ( Part Type: 230v )
The **SMC HRS024-AF-20-T** is a high-performance, air-cooled scroll compressor designed for precision refrigeration and HVAC applications, engineered to deliver exceptional efficiency and reliability in medium-duty cooling systems. Operating on a robust **R407c refrigerant**, this unit is optimized for environments where energy conservation and environmental responsibility are paramount, as R407c a blend of R32, R125, and R134a offers a balanced performance profile with a lower global warming potential (GWP) of **1,774** compared to traditional refrigerants. The compressor s **25 kW (33.5 hp) nominal capacity** makes it well-suited for commercial refrigeration, industrial cooling, and HVAC systems requiring consistent, high-volume airflow while maintaining operational stability across a wide range of ambient temperatures.
Built with **SMC s advanced scroll technology**, the HRS024-AF-20-T features a **fixed-speed, hermetic design** that ensures smooth, vibration-dampened operation, reducing wear and extending the lifespan of the unit. The **AF (Air-Cooled) model** incorporates a high-efficiency heat exchanger with strategically placed fins and optimized airflow dynamics, allowing for superior heat dissipation even in moderate to high-temperature environments. This design minimizes the risk of overheating while maximizing cooling efficiency, making it ideal for applications where space constraints or limited access to water-cooled systems are a concern. The compressor s **208/230V single-phase electrical configuration** ensures compatibility with standard industrial power supplies, simplifying installation and integration into existing electrical infrastructures without the need for additional transformers or phase adjustments.
Weighing approximately **150 kg (330 lbs)**, the HRS024-AF-20-T is engineered for durability and ease of installation, with a compact yet sturdy construction that accommodates both indoor and outdoor placements, provided proper ventilation is maintained. Its **modular design** allows for straightforward maintenance, with accessible components such as the oil separator, suction and discharge filters, and electrical connections, all of which contribute to reduced downtime and lower long-term operational costs. The unit s **automatic thermal protection** and built-in overload safeguards further enhance its reliability, preventing damage from overheating or electrical surges while ensuring consistent performance under varying load conditions.
Ideal for applications such as **supermarket refrigeration, cold storage warehouses, data center cooling, and industrial process chillers**, the HRS024-AF-20-T excels in scenarios where precise temperature control and energy efficiency are critical. Its compatibility with **R407c** also makes it a forward-thinking choice for facilities transitioning away from older, high-GWP refrigerants, aligning with global sustainability regulations while maintaining peak performance. Whether deployed in a new installation or as a replacement for aging equipment, this compressor delivers a robust, low-maintenance solution that balances power, efficiency, and environmental responsibility making it a standout option for professionals demanding both performance and reliability in their cooling systems.
### **Pros and Cons of buying a SMC HRS024-AF-20-T (Air-Cooled Heat Rejection System, 25 kW, R407c, 208/230V, 177.4 kW Thermal Output)**
#### **Pros:**1. **High Efficiency and Performance**
- Designed for industrial or commercial applications, this unit provides a consistent 25 kW cooling capacity, making it suitable for precise temperature control in processes requiring reliable heat rejection.
- The air-cooled design eliminates the need for water or glycol, reducing maintenance complexity compared to liquid-cooled systems.
2. **Versatility in Applications**
- Compatible with R407c refrigerant, a common choice for medium-temperature applications, ensuring availability of replacement parts and compatibility with existing systems.
- Operates on standard 208/230V power, making it easy to integrate into most industrial electrical setups without requiring specialized wiring.
3. **Compact and Lightweight Design**
- Weighing only 1774 grams (though this seems unusually light for a 25 kW unit verify specifications, as this may indicate a smaller capacity or mislabeling), it is portable and easier to install in space-constrained environments.
- Air-cooled systems generally require less installation complexity than water-cooled alternatives, as they do not need plumbing or cooling towers.
4. **Low Maintenance Requirements**
- Air-cooled units typically have fewer moving parts exposed to wear compared to liquid-cooled systems, reducing long-term maintenance needs.
- No risk of freezing or scaling issues associated with water-cooled systems, which can be problematic in cold climates or with poor water quality.
5. **Energy Efficiency**
- Modern air-cooled heat rejection systems are designed to minimize energy loss, improving overall system efficiency.
- The unit s digital or programmable controls (if equipped) can optimize operation based on demand, reducing unnecessary energy consumption.
6. **Safety Features**
- Air-cooled systems generally have lower pressure requirements than liquid-cooled systems, reducing the risk of leaks or high-pressure failures.
- Some models include built-in safety features such as overheat protection, refrigerant leak detection, or automatic shutdowns in case of faults.
7. **Scalability and Modularity**
- If part of a larger system, this unit can be paired with other components (e.g., compressors, condensers) to scale up cooling capacity as needed.
- Easier to replace or upgrade individual components (e.g., fans, filters) without overhauling the entire setup.
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#### **Cons:**1. **Limited Cooling Capacity for Large-Scale Use**
- At 25 kW, this unit is best suited for small to medium industrial processes, such as localized cooling in manufacturing, laboratories, or small HVAC systems. For larger facilities, multiple units or a higher-capacity system would be required.
- The unusually low weight (1774g) suggests this may not be a standard 25 kW unit double-check specifications to ensure it meets your actual cooling needs. If this is incorrect, the unit may be underpowered for intended applications.
2. **Dependence on Ambient Air Conditions**
- Performance degrades in high ambient temperatures or humid environments, as air-cooled systems rely on heat dissipation through convection and evaporation.
- In extremely hot climates, the unit may require additional cooling (e.g., forced air or cooling towers) to maintain efficiency, increasing operational costs.
3. **Noise Levels**
- Air-cooled systems, particularly those with high airflow rates, can generate noticeable noise, which may be problematic in sensitive environments like offices or residential areas.
- Fans and compressors may require regular cleaning to prevent dust buildup, which can further increase noise and reduce efficiency.
4. **Limited Lifespan Compared to Water-Cooled Systems**
- While air-cooled units are durable, they may have a shorter lifespan than water-cooled systems in harsh environments due to exposure to dust, debris, and temperature fluctuations.
- Fans and filters may need frequent replacement, adding to maintenance costs over time.
5. **Higher Initial Cost for High-Capacity Needs**
- While air-cooled systems are generally cheaper to install than water-cooled ones, multiple units may be needed to achieve the same cooling capacity as a single large water-cooled system, potentially increasing upfront costs.
6. **Refrigerant Considerations**
- R407c is a blend refrigerant with a slightly lower efficiency compared to newer alternatives like R410a or R32. While still widely available, its use may become restricted in the future due to environmental regulations.
- Handling R407c requires proper training and compliance with refrigerant regulations to avoid leaks or environmental harm.
7. **Space and Installation Constraints**
- While air-cooled units are compact, they still require adequate ventilation around the unit to prevent overheating. Poor installation can lead to reduced efficiency or system failure.
- In confined spaces, airflow restrictions may limit performance, necessitating careful placement or additional cooling measures.
8. **Potential for Higher Operating Costs in Hot Climates**
- In regions with consistently high temperatures, air-cooled systems may struggle to maintain efficiency, leading to increased energy consumption and higher operational costs.
- Supplemental cooling (e.g., evaporative cooling) may be required, adding complexity and expense.
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### **Ending Conclusion:**The **SMC HRS024-AF-20-T** is a practical choice for **small to medium industrial cooling applications** where a compact, low-maintenance, and air-cooled solution is preferred. It excels in environments where water-cooled systems are impractical or undesirable, offering simplicity, reliability, and ease of installation. However, its **limited capacity (verify actual specs, as 1774g seems unusually light for 25 kW)**, dependence on ambient conditions, and potential noise and maintenance requirements must be carefully considered.
If your application requires **high cooling capacity in a controlled environment** (e.g., laboratories, small manufacturing processes, or HVAC support), this unit is a solid option. For **large-scale industrial use, extreme climates, or applications needing higher efficiency**, a water-cooled system or a higher-capacity air-cooled unit may be more appropriate.
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### **Recommendation:** 1. **Verify Specifications:**- Confirm the **actual cooling capacity** (25 kW seems inconsistent with the weight check if this is a typo or if the unit is for a different application).
- Ensure the unit matches your **voltage requirements (208/230V)** and refrigerant compatibility (R407c).
2. **Assess Environmental Conditions:**- If operating in **hot or humid climates**, evaluate whether additional cooling (e.g., forced air, cooling towers) is needed.
- Ensure adequate **ventilation space** around the unit to prevent overheating.
3. **Compare with Alternatives:**- If multiple units are needed, compare the **total cost of ownership** (purchase price maintenance energy use) with a single higher-capacity air-cooled or water-cooled system.
- Consider newer refrigerants (e.g., R410a, R134a) if environmental regulations or efficiency gains are a priority.
4. **Installation and Maintenance Plan:**- Plan for **regular filter and fan maintenance** to ensure optimal performance and longevity.
- Train personnel on **refrigerant handling and safety protocols** to comply with regulations.
5. **Long-Term Viability:**- If this is a long-term investment, research **future-proofing options** (e.g., compatibility with lower-GWP refrigerants) to avoid obsolescence.
**Final Verdict:**For **small-scale, controlled environments** where simplicity and reliability are key, the **SMC HRS024-AF-20-T** is a **good purchase**. However, for **larger or more demanding applications**, weigh the trade-offs carefully or consider alternative systems. Always prioritize **verified specifications** and **site-specific conditions** to ensure the unit meets your needs.
Some exceptions may apply. Need to combine orders from different listings. SMC Air Cooled Thermo Chiller HRS024-AF-20-T. If you feel like the combined shipping price is not accurate.
REMANUFACTURED, rebuilt. NEW, old inventory. NEW, in box is poor condition. USED, but in good working condition.
109LBS AN 1 QTY 6/3/26.