SULLAIR B32LB717-2.8-400HP Refrigeration Compressor MO-6594 NH3 Compressor. 150 Psig.

( Brand: Sullair ), ( Manufacturer Part Number: B32LB717-2.8-400HP ), ( Model: B32LB717-2.8-400HP NH3 ), ( Part Type: Hp Compressor ), ( Voltage: 460 V ), ( Country Of Origin: United States ), ( Power Phase: 3 Phase )

Review SULLAIR B32lb717-2.8 Nh3 Refrigeration Compressor. 150 Psig. 400 Hp

The **Sullair B32LB717-2.8 (MO-6594) NH Refrigeration Compressor**, a robust and high-performance unit designed for large-scale industrial refrigeration applications, represents the pinnacle of efficiency and reliability in ammonia-based cooling systems. Engineered to deliver **400 horsepower** of continuous duty performance, this reciprocating compressor is specifically tailored for demanding environments where precision, durability, and energy efficiency are paramount. The **B32LB717-2.8** model belongs to Sullair s renowned **B-series** line, renowned for its modular design and adaptability to a wide range of refrigeration cycles, making it an ideal choice for facilities such as food processing plants, cold storage warehouses, ice rinks, and large-scale industrial cooling applications.

At the heart of this compressor lies a **4-cylinder, air-cooled, open-drive design**, optimized for seamless integration with ammonia (NH ) refrigeration systems operating at pressures up to **400 psi**. The **MO-6594** designation signifies its compliance with strict industry standards, ensuring safety, performance, and longevity in both standard and custom configurations. The compressor s **2.8-inch bore** and carefully engineered piston and cylinder assembly maximize volumetric efficiency, reducing energy consumption while maintaining superior cooling capacity. Its **air-cooled configuration** eliminates the need for complex water-cooling systems, simplifying installation and reducing operational overhead, though it can also be adapted for water-cooled applications if required.

One of the standout features of the **B32LB717-2.8** is its **modular and scalable architecture**, allowing for easy expansion or modification to accommodate varying load demands. The compressor is equipped with **Sullair s patented piston ring and valve technology**, which minimizes internal leakage and wear, extending the lifespan of critical components while maintaining consistent performance under heavy loads. Additionally, the **open-drive design** ensures compatibility with a wide range of electric motors, including **NEMA-premium efficiency motors**, further enhancing energy savings and operational cost-effectiveness. The unit is engineered with **corrosion-resistant materials**, including stainless steel and high-grade aluminum, to withstand the harsh conditions of ammonia refrigeration, including exposure to moisture, temperature fluctuations, and chemical residues.

For enhanced reliability and ease of maintenance, the **B32LB717-2.8** incorporates **Sullair s advanced lubrication and cooling systems**, featuring a **force-feed oil lubrication system** that ensures optimal piston and crankshaft protection while reducing friction and heat buildup. The compressor s **integrated oil separator** and **automatic oil level control** further contribute to prolonged equipment life by preventing oil contamination in the refrigeration circuit. Safety is a core consideration in its design, with **pressure relief valves, high-pressure switches, and thermal overload protection** built into the system to prevent catastrophic failures and ensure compliance with **ASHRAE, OSHA, and EPA regulations** governing ammonia refrigeration.

The **B32LB717-2.8** is also engineered for **low-noise operation**, with sound attenuation features that minimize operational disruptions in sensitive environments. Its **compact yet sturdy frame** allows for flexible installation options, whether mounted on a skid, in a dedicated machine room, or as part of a larger refrigeration skid system. For facilities requiring **variable capacity control**, this compressor can be paired with **Sullair s electronic expansion valve (EEV) systems** or **capacity control modules**, enabling precise regulation of cooling output to match demand, thereby optimizing energy usage and reducing operational costs.

Whether deployed in a **large-scale meat processing plant**, a **high-capacity cold storage facility**, or an **industrial ice manufacturing operation**, the **Sullair B32LB717-2.8 NH Refrigeration Compressor** delivers unmatched performance, efficiency, and durability. With its **400 HP capacity**, **air-cooled or water-cooled flexibility**, and **modular scalability**, this compressor stands as a testament to Sullair s commitment to innovation in refrigeration technology, providing operators with a dependable solution that balances power, precision, and long-term cost savings. Built to endure the most rigorous industrial applications, it ensures that facilities can maintain optimal cooling performance while minimizing downtime and maintenance burdens.

### **Pros and Cons of Buying a Sullair B32LB717-2.8 (400 HP) NH Refrigeration Compressor (MO-6594 Series)**

#### **Pros**

1. **High Efficiency and Performance**

- The B32LB717 is a robust, high-capacity compressor designed for large-scale refrigeration applications, capable of handling 400 HP with efficiency optimized for ammonia (NH ) systems.

- Sullair compressors are known for their reliability in industrial and commercial refrigeration, making them suitable for cold storage, food processing, and HVAC systems.

2. **Durability and Build Quality**

- Sullair is a well-established brand with a reputation for durable, heavy-duty equipment built to withstand continuous operation in demanding environments.

- The MO-6594 series is designed for long-term use, with components engineered to minimize wear and reduce maintenance requirements over time.

3. **Compatibility with Ammonia (NH ) Systems**

- Ammonia is a cost-effective and efficient refrigerant, and this compressor is specifically designed for NH applications, which can be more economical than HFC or HCFC alternatives.

- NH systems are widely used in industrial refrigeration due to their high efficiency and lower operating costs.

4. **Scalability and Versatility**

- The 400 HP model can be integrated into larger refrigeration systems, making it suitable for expanding operations or upgrading existing setups.

- Sullair compressors are often used in multi-compressor setups, allowing for redundancy and load balancing.

5. **Energy Efficiency**

- Modern Sullair compressors incorporate advanced technologies to improve energy efficiency, reducing operational costs over time.

- Variable speed drives and optimized designs help maintain performance while minimizing energy consumption.

6. **Aftermarket Support and Availability of Parts**

- Sullair has a strong global network of distributors and service centers, ensuring easy access to replacement parts and technical support.

- The MO-6594 series is a well-documented model, meaning troubleshooting and maintenance guides are readily available.

7. **Lower Operating Costs Compared to Some Alternatives**

- NH systems generally have lower operating costs than synthetic refrigerants, and a well-maintained Sullair compressor can operate efficiently for years.

- The initial investment may be offset by long-term savings in energy and maintenance expenses.

---

#### **Cons**

1. **High Initial Cost**

- High-capacity industrial compressors like the B32LB717-2.8 come with a significant upfront cost, which may be prohibitive for smaller businesses or startups.

- Additional expenses may include installation, refrigeration system integration, and initial maintenance.

2. **Complex Installation and Setup**

- NH refrigeration systems require careful handling due to the toxicity and flammability of ammonia. Proper installation, leak detection, and safety protocols are mandatory.

- Professional installation is recommended, adding to the overall cost and requiring compliance with local regulations.

3. **Maintenance Requirements**

- While Sullair compressors are durable, they still require regular maintenance to ensure optimal performance and longevity. This includes lubrication, part inspections, and occasional overhauls.

- NH systems may require specialized training for technicians, increasing maintenance costs.

4. **Potential for Higher Initial Refrigerant Charge**

- Ammonia systems often require larger refrigerant charges compared to some synthetic refrigerants, which can increase initial setup costs and pose logistical challenges in handling and storage.

5. **Safety and Regulatory Considerations**

- Ammonia is toxic and can be hazardous if mishandled. Compliance with OSHA, ASHRAE, and local regulations is essential, which may add complexity to ownership.

- Insurance premiums for NH systems may be higher due to liability risks.

6. **Depreciation and Resale Value**

- Industrial compressors, even from reputable brands, may depreciate over time. While Sullair equipment is durable, the resale value may not fully recoup the initial investment after several years of use.

7. **Potential for Downtime During Maintenance**

- Large compressors require scheduled maintenance, which may temporarily disrupt operations if not planned carefully.

- Spare parts availability could be a concern in remote locations, leading to extended downtime if replacements are delayed.

---

### **Ending Conclusion**

The **Sullair B32LB717-2.8 (400 HP) NH refrigeration compressor** is a powerful, efficient, and reliable choice for large-scale refrigeration applications. Its strengths lie in its durability, energy efficiency, and compatibility with ammonia systems, which can offer long-term cost savings. However, the high initial cost, complex installation requirements, and maintenance demands make it a significant investment that is best suited for businesses with substantial refrigeration needs and the resources to manage an NH system safely and effectively.

For **smaller operations, startups, or businesses with limited technical expertise**, the upfront and ongoing costs may outweigh the benefits. In contrast, **large industrial facilities, food processing plants, cold storage warehouses, or companies already using NH refrigeration** will likely find this compressor to be a worthwhile investment due to its performance, efficiency, and longevity.

---

### **Recommendation**

- You operate a large-scale refrigeration system (e.g., cold storage, food processing, industrial HVAC).

- You are already using or plan to transition to an NH -based refrigeration system.

- Your budget can accommodate the high initial cost, and you have access to trained personnel for installation and maintenance.

- You prioritize long-term energy efficiency and durability over short-term cost savings.

- Your refrigeration needs are smaller, and a lower-capacity compressor would suffice.

- You lack experience with NH systems, as the safety and regulatory complexities may be overwhelming.

- Your budget is constrained, and you can find a more cost-effective solution (e.g., a used compressor, a different brand, or a hybrid system).

- You require a compressor with lower maintenance demands or easier installation.

- If budget is a concern, explore **used or refurbished Sullair compressors** from reputable dealers, ensuring they come with service records.

- For smaller operations, consider **lower-HP Sullair models** or compressors from other brands with similar performance but lower upfront costs.

- If NH is not feasible, evaluate **CO or HFC-based compressors**, though these may have different efficiency and cost profiles.

Ultimately, the decision should be based on a **detailed cost-benefit analysis**, including operational needs, long-term savings, and the ability to manage the system effectively. Consulting with refrigeration specialists or Sullair distributors can provide further clarity on whether this compressor aligns with your specific requirements.

Details:

POWER SPECS: 150 PSIG MAX PRESSURE, 400 HP, 3570 RPM, 460 V, 3 PH, 434. SULLAIR B32LB717-2.8-400HP NH3 REFRIGERATION COMPRESSOR. SERIAL: 056-01869. Model: B32LB717-2.8-400HP NH3.

part #: b32lb71728400hp price

• $31500.00

specifications motohva:

• brand: Sullair
• mpn: B32lb717-2.8-400hp
• model: B32lb717-2.8-400hp Nh3
• part type: Hp Compressor
• voltage: 460 V
• country of origin: United States
• power phase: 3 Phase

seller motohva:

• # reviews: 7178
• city: Willoughby, Ohio
• rating: 100.0%

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• quantity: 1
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• started: March 30, 2026

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general motohva:

• HVAC Refrigeration > HVAC Refrigeration Components > Compressors
• condition: Used

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