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  3. COPELAND 6DS3A400E-TSN-800

COPELAND 6DS3A400E-TSN-800 Mcquay Semi Hermetic Compressor 208/230 460V

6ds3a400e-tsn-800 Copeland Mcquay / 40 Hp Semi-hermetic Compressor 208/230 460v

( Brand: Copeland ), ( Manufacturer Part Number: 6DS3A400E-TSN-800 ), ( Type: Compressor ), ( Compressor Type: Semi-hermetic ), ( Refrigerant: R-22 ), ( Voltage: 460 V ), ( Color: Black ), ( Country Of Origin: United States ), ( Power Phase: 3 Phase )

Review COPELAND Mcquay 40 Hp Semi hermetic Compressor 208/230 460v

The **Copeland 6DS3A400E-TSN-800** semi-hermetic compressor, manufactured by McQuay, represents the pinnacle of efficiency, reliability, and performance in commercial and industrial refrigeration systems. Engineered with McQuay s signature precision, this **40 horsepower** compressor is a robust, high-capacity unit designed to deliver exceptional cooling output while maintaining energy efficiency and operational longevity. The **6DS3A** series is part of Copeland s renowned **Scroll Series**, a technology renowned for its smooth, vibration-free operation and superior part-load efficiency, making it an ideal choice for applications requiring consistent performance under varying demand conditions.

This semi-hermetic compressor features a **copper-wound, high-efficiency motor** rated for **208/230V single-phase or 460V three-phase** operation, ensuring compatibility with a wide range of electrical systems. The **TSN** designation indicates a **variable-speed (inverter-compatible)** model, allowing for seamless integration with advanced control systems to optimize energy consumption and adapt to fluctuating cooling loads. The **800** suffix denotes a specific displacement size, providing a balanced output for medium-to-large commercial refrigeration, HVAC, or industrial process cooling applications. With a **copper rotor and aluminum stator**, the motor is engineered for superior thermal conductivity, reducing energy loss and extending component life.

The **semi-hermetic design** combines the durability of a hermetic unit with the serviceability of a semi-hermetic configuration, offering easier maintenance without compromising the sealed system s integrity. The compressor incorporates **copper tubing and advanced bearing systems**, including a **dual-bearing arrangement** for enhanced stability and reduced wear. Additionally, the **scroll compressor technology** eliminates the reciprocating motion found in traditional piston compressors, resulting in quieter operation, fewer moving parts, and improved reliability. This design also contributes to lower maintenance requirements, as there are no valves, pistons, or connecting rods to degrade over time.

For applications demanding high efficiency, the **6DS3A400E-TSN-800** is equipped with **Copeland s proprietary scroll technology**, which maximizes volumetric efficiency and minimizes refrigerant leakage. The unit is compatible with a variety of refrigerants, including **R-410A, R-134a, and R-404A**, making it versatile for both legacy and modern refrigeration systems. The **variable-speed capability** further enhances its adaptability, allowing for precise control over cooling output while reducing energy consumption during partial-load conditions a critical feature for cost-effective operation in commercial buildings, grocery stores, or industrial facilities.

Built to withstand demanding environments, this compressor is constructed with **high-grade materials**, including **cast iron crankcase** and **stainless steel components** where necessary, ensuring resistance to corrosion and mechanical stress. The **integrated oil management system** promotes efficient lubrication, reducing friction and extending the life of critical components. Furthermore, the **copper-to-copper brazed construction** enhances thermal performance and system reliability, while the **sealed design** minimizes refrigerant leaks, contributing to both environmental sustainability and operational efficiency.

Whether deployed in **large-scale commercial refrigeration, HVAC systems, or industrial cooling applications**, the **Copeland 6DS3A400E-TSN-800** delivers unmatched performance with minimal operational overhead. Its **high efficiency, variable-speed compatibility, and robust construction** make it a premium choice for engineers and facility managers seeking a compressor that balances power, durability, and energy savings. With McQuay s reputation for innovation and Copeland s legacy of excellence in refrigeration technology, this unit stands as a dependable workhorse for modern cooling challenges.

### **Pros and Cons of buying a Copeland 6DS3A400E-TSN-800 (McQuay) 40 HP Semi-Hermetic Compressor (208/230V, 460V)**

#### **Pros**

1. **High Efficiency and Reliability**

The Copeland 6DS series is known for its energy-efficient performance, particularly in semi-hermetic designs, which reduce refrigerant leakage and improve overall system efficiency. This model is engineered for long-term durability, making it suitable for commercial and industrial applications where uptime is critical.

2. **Wide Voltage Compatibility**

The compressor supports both **208/230V** and **460V** configurations, providing flexibility for different electrical setups. This makes it adaptable for various facility configurations without requiring major electrical modifications.

3. **Semi-Hermetic Construction**

Semi-hermetic compressors offer better sealing than open types, reducing refrigerant loss and contamination risks. This design also simplifies maintenance, as the motor is sealed within the compressor housing, reducing exposure to environmental factors.

4. **Copeland s Reputation for Quality**

Copeland (now part of Emerson) is a well-established brand in HVAC and refrigeration, known for robust engineering, extensive warranty coverage, and strong aftermarket support. This model benefits from decades of refinement in compressor technology.

5. **Compatibility with McQuay Systems**

As part of the McQuay lineup, this compressor is designed to integrate seamlessly with McQuay s line of air handlers, chillers, and refrigeration units. This ensures optimized performance and easier troubleshooting when paired with compatible equipment.

6. **Modular and Scalable Design**

The 6DS series is part of a scalable lineup, allowing for easy expansion or replacement within a system. This modularity is advantageous for facilities planning future upgrades or redundancy.

7. **Low Maintenance Requirements**

Semi-hermetic compressors typically require less frequent maintenance compared to open-drive models, as they eliminate the need for periodic motor inspections or bearing replacements. This reduces downtime and labor costs.

8. **Energy Savings Potential**

The **TSN (Total System Noise) variant** suggests attention to acoustic performance, which can be beneficial in noise-sensitive environments. Additionally, the 40 HP rating balances power output with efficiency, making it suitable for medium-to-large applications without excessive energy consumption.

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#### **Cons**

1. **Higher Upfront Cost**

Copeland and McQuay compressors are premium brands, and this model will likely have a higher initial purchase price compared to generic or aftermarket alternatives. The cost may be justified by long-term reliability, but budget-conscious buyers should weigh this against their financial constraints.

2. **Limited Availability of Parts**

While Copeland is reliable, some smaller or specialized components may be harder to source than those from more widely available brands. This could lead to longer wait times for repairs or replacements in certain regions.

3. **Complex Installation and Electrical Requirements**

The **460V option** requires proper electrical infrastructure, which may necessitate additional wiring, transformers, or panel upgrades. Installation complexity can increase labor costs, especially if the facility lacks the necessary electrical setup.

4. **Warranty Limitations**

While Copeland offers robust warranties (typically 5 7 years on compressors), some terms may exclude certain conditions (e.g., improper installation, refrigerant type, or maintenance neglect). Buyers should carefully review warranty details to avoid voiding coverage.

5. **Potential for Overkill in Smaller Applications**

A **40 HP compressor** is powerful and efficient but may be overrated for very small systems where a lower-capacity unit would suffice. Oversizing can lead to unnecessary energy use and higher initial costs without proportional benefits.

6. **Refrigerant Compatibility**

The compressor s performance depends on the correct refrigerant (e.g., R-410A, R-134a, or R-404A, depending on the model variant). Using incompatible refrigerants can void warranties and reduce efficiency. Buyers must ensure the system s refrigerant matches the compressor s specifications.

7. **Dependence on Professional Service**

While semi-hermetic compressors are low-maintenance, they still require professional servicing for oil changes, filter replacements, and occasional diagnostics. Reliance on HVAC technicians may add to operational costs over time.

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### **Conclusion**

The **Copeland 6DS3A400E-TSN-800 (McQuay) 40 HP semi-hermetic compressor** is a high-quality, efficient, and reliable choice for commercial and industrial HVAC or refrigeration applications. Its **semi-hermetic design, voltage flexibility, and brand reputation** make it a strong investment for facilities prioritizing longevity and performance. However, the **higher cost, installation complexity, and potential overkill for smaller systems** are factors to consider.

For buyers with **budget flexibility, long-term operational needs, and access to proper installation**, this compressor is an excellent choice. Those operating on tighter budgets or in simpler applications may find more cost-effective alternatives, but they would likely sacrifice reliability and efficiency.

### **Recommendation**

**Buy this compressor if:**

- You need a **durable, energy-efficient** solution for a **medium-to-large HVAC or refrigeration system**.

- Your facility can accommodate **208/230V or 460V** electrical requirements.

- You prioritize **low maintenance** and **long-term reliability** over short-term cost savings.

- You plan to integrate it with **McQuay or compatible HVAC equipment**.

**Consider alternatives if:**

- Your application is **small-scale**, and a lower-HP unit would suffice.

- You require **immediate cost savings** and can accept slightly lower brand reliability.

- Your electrical infrastructure **cannot support 460V** without significant upgrades.

For most **commercial or industrial applications**, this compressor is a **strong recommendation** due to its balance of performance, efficiency, and support. Always verify refrigerant compatibility and installation requirements before purchase.

Details:

Any inspection or documentation requests. McQuay / Copeland 40 HP Semi-Hermetic Compressor Remanufactured: model: 6DS3A400E-TSN-800 208/230 460V Palletized OBO:: For sale is a semi-hermetic Discus compressor, model 6DS3A400E-TSN-8 rated at. Clean exterior, no visible cracks or damage. Condition Notes: Palletized and secured for transport.

Forklift available for loading. Type: Semi-Hermetic Discus Compressor. voltage : 208/230V 460V. Exterior condition is very good, with clean paint, intact covers, terminal block, and service ports.

Sold as-is, as surplus equipment. See nameplate photos. Specifications: Manufacturer: McQuay / Copeland. This model is commonly used in commercial HVAC and chiller applications a direct replacement for multiple McQuay / Copeland Discus configurations.

Service ports capped / nitrogen tag present. Horsepower: 40 HP. Questions / Offers: We respond quickly.Please message with: Your application replacement spare resale.

part #: 6ds3a400etsn800 price

  • $6450.00

specifications motohva:

  • brand: Copeland
  • mpn: 6ds3a400e-tsn-800
  • type: Compressor
  • compressor type: Semi-hermetic
  • refrigerant: R-22
  • voltage: 460 V
  • color: Black
  • country of origin: United States
  • power phase: 3 Phase

returns motohva:

  • policy: No Returns

offer motohva:

  • options: Ship-to-home
  • started: February 11, 2026
  • quantity: 1
  • availability: In Stock
  • best offers: True
  • sold: 0

general motohva:

  • condition: Seller refurbished
  • HVAC Refrigeration > HVAC Refrigeration Components > Compressors

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  • rating: 97.2%
  • city: Fremont, California
  • # reviews: 50

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type: compressor, compressor type: semi-hermetic, refrigerant: r-22, voltage: 460 v, country of origin: united states, power phase: 3 phase,
category: business & industrial > hvac refrigeration > hvac refrigeration components > compressors, color: black, sku: 9877473702351861,
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1 offer $6450.00 USD
  • Seller refurbished. Offer #1 priced at $6450.00 + $Calculated shipping estimate = $6450.00* total. Horsepower: 40 HP Manufacturer: McQuay / Copeland.+$Calculated shipping

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