ECM High-Efficiency Circulator, Variable Speed, 4 Bolt Flange

Taco 0015E3 ECM High-Efficiency Circulator – Variable Speed Performance for Precision Hydronic Control

The Taco 0015E3 ECM High-Efficiency Circulator Pump is engineered for optimal performance in residential and light commercial hydronic systems. Designed with a high-efficiency ECM (electronically commutated motor), this circulator is ideal for closed-loop heating systems requiring variable speed functionality across a broad range of head and flow conditions.

Contractors rely on the 0015E3 for its balance of flexibility, energy savings, and low-noise operation. With three pre-set speed modes and a quiet, precision-built motor, it is well-suited for baseboard, radiant panel, or fan coil applications where zone-specific control is required.

Performance Benefits for Hydronic Professionals

• ECM Motor Technology – Variable speed, permanent magnet design reduces energy usage while maintaining consistent flow rates.
• Three Fixed Speeds – Toggle between Low (5 ft head), Medium (10 ft head), and High (18 ft head) to match specific system demands.
• Integrated Wiring Panel – Includes dual knockouts and pre-stripped leads to streamline field installation.
• Whisper-Quiet Operation – Precision balance and motor design help reduce operational noise, ideal for multi-zone residential installs.
• ON/OFF Compatibility – Fully compatible with Taco SR Series Switching Relays and ZVC Zone Valve Controls.

Technical Specifications

• Model: 0015E3-2F4
• Max Flow Rate: 16 GPM
• Max Head: 18 ft (variable)
• Power: 115V, 60 Hz, 0.54 amps
• Motor Type: ECM, permanent magnet
• Electrical: Class II, double-insulated (no ground wire required)
• Flange-to-Flange Length: 6-3/8"

Installation & Application Notes

The 0015E3 is suitable for closed-loop hydronic systems and should be installed by a qualified HVAC technician. Pump orientation, proper flange gaskets, and correct speed selection are critical for performance. It can be mounted in both horizontal and vertical pipe runs, provided the motor shaft remains horizontal.

Recommended Use Cases

• Residential zoning applications (baseboard, panel radiators, radiant)
• Hot water recirculation systems
• Fan coil and hydronic air handler loops

Contractor Advantages

• Energy-efficient ECM motor reduces long-term utility costs
• Quiet, maintenance-free performance
• Three fixed-speed options minimize call-backs due to system imbalance
• Backed by Taco’s industry-standard reliability and support