Description
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Focus Keyword:
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Meta Description:
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Tag Keywords: Bell & Gossett Ecocirc, ECM circulator, variable speed pump, 3-phase circulator, cast iron circulator, commercial hydronic pump, 104313, high-efficiency circulator
Product Overview
The Bell & Gossett 104313 Ecocirc XL 40-200 represents a significant leap in commercial hydronic efficiency, combining advanced ECM (Electronically Commutated Motor) technology with a durable cast iron construction. This 3-phase variable speed circulator is engineered for mid-sized commercial applications where reliability, energy savings, and precise flow control are paramount.
Featuring an intelligent, sensorless control system, the Ecocirc XL automatically adjusts its speed to maintain a constant pressure differential or a set flow rate, eliminating the energy waste associated with fixed-speed circulators and balancing valves. The robust cast iron body ensures longevity in demanding commercial environments, while the wet-rotor ECM design provides exceptionally quiet operation—a critical benefit for hospitals, offices, and multi-tenant residential buildings.
For engineers and contractors designing modern, high-efficiency HVAC systems, the Bell & Gossett Ecocirc XL delivers the smart, sustainable performance required by today’s energy codes and green building standards.
📚 Technical Resources & Guides
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Understanding Differential Pressure Control in Hydronic Systems
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Commissioning Variable Speed Circulators in Commercial Buildings
Technical Specifications
| Specification Category | Detail |
|---|---|
| Manufacturer Part Number | 104313 |
| Product Line | Bell & Gossett Ecocirc XL Series |
| Model | 40-200 |
| Motor Technology | ECM (Electronically Commutated Motor) |
| Phase | 3-Phase |
| Voltage | 200-240V / 380-480V (Verify for specific model) |
| Connection Size | 1-1/2″ Female NPT |
| Connection Type | Threaded |
| Housing Material | Cast Iron |
| Maximum Working Pressure | 145 PSI / 10 Bar |
| Maximum Temperature | 230°F / 110°C |
| Control Mode | Constant Differential Pressure (ΔP) or Constant Speed |
| Speed Range | Fully Variable |
| Protection Rating | IP42 |
What’s Included
| Included | Not Included / Required Separately |
|---|---|
| ✓ Complete Ecocirc XL Circulator | ✗ Isolation Valves |
| ✓ Cast Iron Housing with ECM Motor | ✗ Pipe Sealant/Teflon Tape |
| ✓ Integrated Control Electronics | ✗ Power Connection Kit |
| ✓ Installation & Programming Guide | ✗ Mounting Bracket |
🛠️ Recommended for a Complete Installation
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Control: Bell & Gossett BMS Interface Module
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Accessories: Commercial Circulator Mounting Bracket
Comparison Table: Ecocirc XL vs. Traditional Commercial Circulators
| Feature | Bell & Gossett Ecocirc XL 40-200 | Standard 3-Phase Circulator | Mechanical Variable Speed Pump |
|---|---|---|---|
| Energy Efficiency | Excellent (Up to 80% savings) | Poor | Good |
| Control Precision | High (Electronic ΔP Control) | None | Moderate |
| Installation Cost | Higher | Lower | Highest |
| Operating Noise | Very Quiet | Moderate | Moderate to High |
| Maintenance | Low (No mechanical parts) | Low | High |
| System Integration | Excellent (BMS compatible) | None | Good |
Frequently Asked Questions (FAQs)
Q1: What does the “40-200” model designation indicate?
A: This refers to the pump’s performance range, typically indicating it can handle a maximum head pressure of 40 kPa (approx. 16 feet) and a maximum flow rate of 200 L/min (approx. 53 GPM). Always consult the specific performance curve for exact values.
Q2: How does the differential pressure control mode work?
A: The circulator automatically adjusts its speed to maintain a constant pressure difference between its suction and discharge ports. This ensures consistent system performance regardless of changing flow demands, such as when zone valves open or close.
Q3: Can this circulator be integrated with a Building Management System (BMS)?
A: Yes, with an optional interface module, the Ecocirc XL can communicate with most modern BMS systems using protocols like BACnet MS/TP or Modbus, allowing for remote monitoring and control.
Q4: Is this pump suitable for primary and secondary loop applications?
A: Absolutely. Its variable speed capability makes it ideal for both primary variable flow loops and secondary constant flow loops in primary-secondary pumping systems.
Q5: What maintenance does an Ecocirc XL circulator require?
A: Maintenance is minimal:
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Periodic visual inspection for leaks
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Ensuring clean system fluid to prevent fouling
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Verification of proper operation through system pressure monitoring
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Occasional check of electrical connections
Internal Link: Learn more about system integration in our guide BMS Integration for Hydronic Systems.
Pros and Cons
| Pros | Cons |
|---|---|
| Significant Energy Savings: Precisely matches output to system demand. | Higher Initial Cost: Premium price compared to standard circulators. |
| Advanced Control: Built-in ΔP control eliminates need for separate controls. | 3-Phase Power Required: Not suitable for single-phase applications. |
| Quiet Operation: ECM wet-rotor design minimizes noise. | Complex Programming: Requires understanding of control parameters. |
| Durable Construction: Cast iron body withstands commercial use. | Electronic Sensitivity: Vulnerable to power surges and poor power quality. |
| Smart System Integration: BMS compatible for building automation. | Professional Installation Recommended: Requires expertise for optimization. |
Conclusion & Ideal Use Case
The Bell & Gossett 104313 Ecocirc XL 40-200 is engineered for modern commercial hydronic systems where energy efficiency, precise control, and reliable performance are non-negotiable.
This circulator is perfectly suited for:
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Commercial Building HVAC Systems
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Primary/Secondary Pumping Applications
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Variable Flow Primary Loops
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University and Hospital Campus Buildings
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Any application requiring precise differential pressure control
If you’re designing or maintaining a commercial hydronic system where reducing lifecycle costs and optimizing energy performance are priorities, the Bell & Gossett Ecocirc XL delivers intelligent, efficient circulation solutions.
🔗 Official Technical Resource
For performance curves, wiring diagrams, and detailed programming manuals, visit the Bell & Gossett Ecocirc Product Support Page for the most accurate and up-to-date technical information.
