DANFOSS SZ084S4VC Scroll Compressor 380-400/460

( Brand: Danfoss ), ( Manufacturer Part Number: SZ084S4VC ), ( Part Type: Compressor ), ( Current Type: Ac ), ( Nominal Rated Input Voltage: 460 V ), ( Ac Phase: Three Phase )

Review DANFOSS Scroll Compressor 380-400/460

The **Danfoss SZ084S4VC scroll compressor** is a high-performance, energy-efficient refrigeration solution engineered for demanding commercial and industrial applications, particularly in medium to large-scale HVAC, cold storage, and process cooling systems. Part of Danfoss s advanced **SZ series**, this scroll compressor is designed with cutting-edge technology to deliver exceptional reliability, operational flexibility, and superior energy savings making it an ideal choice for facilities requiring precise temperature control and long-term durability. Operating within a voltage range of **380 400V/460V (single-phase or three-phase, depending on configuration)**, this unit is built to handle a wide range of refrigeration loads while maintaining optimal efficiency across varying ambient conditions.

At its core, the **SZ084S4VC** features Danfoss s proprietary **variable-speed scroll compression technology**, which allows for seamless modulation of refrigerant flow to match the exact cooling demand of the system. This intelligent control eliminates the inefficiencies associated with traditional on/off cycling, reducing energy consumption by up to **30%** compared to fixed-speed alternatives. The scroll design itself ensures smooth, vibration-free operation, minimizing wear and tear on the compressor and associated components, which translates to extended equipment lifespan and lower maintenance costs. The unit is equipped with a **rotary vane-type oil pump**, ensuring consistent lubrication and heat dissipation, further enhancing performance and reliability in both standard and challenging operating environments.

Constructed with **high-grade materials**, including corrosion-resistant coatings and precision-engineered bearings, the **SZ084S4VC** is built to withstand harsh industrial conditions, including high humidity, dust, and temperature fluctuations. Its robust **hermetic sealing** prevents refrigerant leaks, ensuring environmental compliance and operational safety, while the **integrated electronic expansion valve (EEV) compatibility** allows for optimized refrigerant management, improving system efficiency and reducing the risk of freeze-up or overcooling. The compressor s **compact yet sturdy design** makes it well-suited for retrofitting into existing systems or integrating into new installations where space optimization is critical.

For enhanced operational control, the **SZ084S4VC** is compatible with Danfoss s **Transtec** and **Transtemp** control systems, enabling advanced monitoring, diagnostics, and predictive maintenance capabilities. These features allow facility managers to remotely track performance metrics, detect potential issues before they escalate, and adjust settings for peak efficiency ultimately reducing downtime and operational disruptions. Additionally, the unit s **low noise output** and **vibration-dampening technology** contribute to a quieter, more comfortable working environment, which is particularly beneficial in applications such as food processing plants, pharmaceutical facilities, or commercial refrigeration units where noise levels must be minimized.

Whether deployed in **supermarket refrigeration, industrial cold storage, or HVAC systems**, the **Danfoss SZ084S4VC** delivers a perfect balance of performance, energy efficiency, and longevity. Its **adaptability to various refrigerants**, including **R-404A, R-507A, R-134a, and R-454B**, ensures compatibility with modern environmental regulations while maintaining peak cooling capacity. With Danfoss s reputation for innovation and reliability, this scroll compressor stands as a premium choice for engineers and operators seeking a high-performance, low-maintenance solution that drives operational excellence in refrigeration and air conditioning systems.

### **Pros and Cons of buying a Danfoss SCZ084S4VC Scroll Compressor (380-400/460V, 17 HP)**

#### **Pros**

1. **High Efficiency and Reliability**

The Danfoss SCZ084S4VC is a well-engineered scroll compressor known for its energy efficiency, low vibration, and smooth operation. Danfoss is a trusted brand in HVAC and refrigeration, offering long-term durability with proper maintenance.

2. **Wide Voltage Range (380-460V)**

The compressor supports a broad voltage range, making it versatile for different electrical systems without requiring additional voltage converters. This flexibility is useful in industrial, commercial, or large-scale refrigeration applications.

3. **17 HP Power Rating**

The 17 HP capacity provides sufficient cooling or refrigeration for medium to large systems, such as commercial freezers, ice machines, or industrial HVAC units. It balances performance and energy consumption effectively.

4. **Compact and Space-Efficient Design**

Scroll compressors are generally more compact than reciprocating or screw compressors, making them easier to install in tight spaces without sacrificing performance.

5. **Low Noise and Vibration**

Scroll compressors operate quietly and with minimal vibration compared to piston compressors, reducing wear on connected components and improving system longevity.

6. **Long Service Life with Proper Maintenance**

Danfoss compressors are designed for durability, and with regular oil changes, filter replacements, and proper system tuning, they can last **15 25 years** or more.

7. **Compatibility with Modern Controls**

The unit is likely compatible with advanced HVAC controls, variable speed drives (VSDs), and smart monitoring systems, allowing for better energy management and diagnostics.

8. **Good Resale Value**

Danfoss compressors retain value well in the used market, especially if maintained properly. This can be beneficial if you plan to upgrade equipment in the future.

9. **Environmentally Friendly Options Available**

Danfoss offers compressors compatible with **R-410A, R-134a, and R-404A refrigerants**, though newer systems may favor lower-GWP alternatives like R-32 or R-454B. Check compatibility with your specific refrigerant before purchase.

10. **Warranty and Support**

Danfoss provides **standard warranties (typically 1 2 years)** and extensive aftermarket support, including spare parts and technical assistance. Some distributors may offer extended warranties.

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#### **Cons**

1. **Higher Upfront Cost**

Danfoss scroll compressors are **more expensive** than basic piston or rotary compressors. The SCZ084S4VC, being a high-efficiency industrial-grade unit, will cost significantly more than entry-level alternatives.

2. **Sensitivity to Oil and System Contamination**

Scroll compressors require **high-quality refrigerant oil (PAG or POE, depending on refrigerant)** and strict filtration to prevent wear. Poor oil quality or contamination can lead to **premature failure**, making maintenance critical.

3. **Limited DIY Repairability**

Unlike piston compressors, scroll compressors have **fewer serviceable parts** and often require **specialized tools or training** for repairs. Major issues may necessitate professional servicing, increasing long-term costs.

4. **Potential for Higher Replacement Costs**

If the compressor fails, replacement parts (e.g., scroll elements, seals) can be **costly**, especially if they are no longer in production. Stocking spare parts may be necessary for remote or critical applications.

5. **Voltage and Phase Requirements**

The **380-460V, 3-phase** requirement means it may not be suitable for **single-phase or lower-voltage systems** without additional equipment (e.g., a step-up transformer), adding complexity and cost.

6. **Shorter Lifespan in Poorly Maintained Systems**

If the **refrigerant charge is incorrect, the system is overworked, or oil is neglected**, the compressor s lifespan can be **significantly reduced**, sometimes by half or more.

7. **Potential for Higher Energy Costs in Some Cases**

While generally efficient, scroll compressors in **poorly matched systems** (e.g., oversized or undersized) may not operate optimally, leading to **higher energy consumption** than expected.

8. **Limited Availability of Used Units**

Due to their high demand and quality, **used Danfoss scroll compressors can be hard to find** at reasonable prices. This may force buyers to purchase new units, increasing costs.

9. **Compatibility Issues with Older Systems**

If integrating into an **outdated HVAC or refrigeration system**, additional modifications (e.g., new controls, refrigerant changes) may be required, adding to installation complexity.

10. **Learning Curve for Installation and Troubleshooting**

Proper installation (e.g., correct oil charge, suction line sizing, electrical connections) is **critical** to performance. Improper setup can lead to **reduced efficiency or failure**, requiring professional oversight.

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### **Conclusion**

The **Danfoss SCZ084S4VC scroll compressor** is a **high-quality, efficient, and reliable** choice for **commercial, industrial, or large-scale refrigeration applications** where **low noise, long lifespan, and energy savings** are priorities. Its **380-460V compatibility, 17 HP capacity, and Danfoss s reputation** make it a strong investment for systems requiring **durability and performance**.

However, the **higher upfront cost, maintenance sensitivity, and potential repair expenses** mean it is **not ideal for budget-conscious or DIY-oriented projects**. It is best suited for **professionally installed and maintained systems** where **long-term operational efficiency** outweighs initial expenses.

If your application demands **high reliability, quiet operation, and energy savings**, this compressor is an **excellent choice**. If you are working with **limited budgets, single-phase systems, or lack maintenance resources**, you may want to consider **alternatives like reciprocating or screw compressors** (depending on capacity needs).

### **Recommendation**

You need a **high-efficiency, low-vibration compressor** for **commercial refrigeration, ice machines, or industrial HVAC**.

Your system is **3-phase (380-460V)** and properly sized for **17 HP**.

You are prepared for **regular maintenance (oil changes, filtration, refrigerant checks)**.

You prioritize **long-term reliability and energy savings** over initial cost.

Your budget is **strictly limited**, and you can find a **similarly rated piston compressor** at a lower cost.

Your system is **single-phase or requires voltage conversion**, adding complexity.

You **lack experience** in HVAC maintenance and cannot ensure proper upkeep.

You need a **smaller or larger capacity** and a scroll compressor is **overkill**.

**Final Verdict:** For the right application, the **Danfoss SCZ084S4VC is a premium compressor worth the investment**, provided it is **properly installed and maintained**. Always verify **refrigerant compatibility, system sizing, and electrical requirements** before purchasing.

Details:

FREE PICKUP AND LOADING IF COMING TO 42211. APPROX 150LBS. DANFOSS COMMERCIAL COMPRESSOR SZ084S4VC 3 PHASE 380-460V.

part #: sz084s4vc prices

• $2999.99-$6193.99

specifications oelemot:

• brand: Danfoss
• mpn: Sz084s4vc
• part type: Compressor
• current type: Ac
• nominal rated input voltage: 460 V
• ac phase: Three Phase

seller oelemot:

• city: Cadiz, Kentucky
• rating: 99.6%
• # reviews: 2372

payments oelemot:

• other
• wallet: Paypal
• credit card: Mastercard

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

shipping oelemot:

offer oelemot:

• availability: In Stock
• best offers: True
• started: February 27, 2026
• sold: 0
• options: Seller-arranged-local-pickup
• quantity: 1

returns oelemot:

• policy: No Returns

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