Bell & Gossett 104473LF 3PH Ecocirc XL N 27-320 Stainless Steel Circulator

Large institutional domestic-water systems can use the Bell & Gossett 104473LF ecocirc XL N 27-320 with 208 to 230 or 460 V three-phase power, lead-free stainless steel construction, 320 GPM maximum flow, and 27 feet of maximum head.

The seal-less wet-rotor arrangement and native Modbus RTU and BACnet MS/TP communication support the listed high-volume potable-loop application. Maximum flow and head remain selection limits, not guaranteed simultaneous performance, and require comparison with the system curve.

Construction and Controls

- 208 to 230 or 460 V three-phase power establishes the electrical supply range.
- Lead-free stainless steel construction identifies the wetted-body material for potable-water service.
- Maximum flow is listed as 320 GPM, requiring duty-point comparison.
- Maximum head is listed as 27 feet, providing an upper hydraulic reference.
- Seal-less wet-rotor construction identifies the documented pump arrangement.
- Native Modbus RTU supports communication with compatible control systems.
- BACnet MS/TP provides a second documented building-automation interface.

Hydraulic Performance and Application

The listed maximum performance is 320 GPM at 27 feet, with large institutional domestic-hot-water systems and high-volume potable loops identified as applications. No exact efficiency value, NPSH requirement, pressure limit, temperature limit, or operating curve is supplied, so duty-point verification remains necessary.

Installation Requirements

Confirm three-phase voltage, stainless steel potable-water compatibility, piping dimensions, flow direction, rotation, Modbus or BACnet communication wiring, control addressing, service access, and operating limits before commissioning. The seal-less wet-rotor arrangement must be installed with fluid conditions appropriate for the pump’s intended service.

Warranty and Maintenance

Bell & Gossett provides an 18-Month Limited Warranty from shipment or a 1-Year Limited Warranty from installation, whichever occurs first, covering material and workmanship defects. Improper installation, misuse, alteration, negligence, and contrary operation are excluded. Communication settings and wet-rotor operating condition should be included in commissioning checks. Mulmotor can assist with product details and order questions.