Taco 007e Manual: A Comprehensive Guide
This manual details the Taco 007e series, a variable speed, high-efficiency ECM circulator pump with stainless steel and cast iron options.
It covers installation, operation, troubleshooting, and maintenance, ensuring optimal performance of your Taco Comfort Solutions product.
The Taco 007e represents a significant advancement in circulator pump technology, utilizing a variable speed ECM (Electronically Commutated Motor) for enhanced efficiency and performance. This pump is designed for a wide range of hydronic heating and cooling applications, offering substantial energy savings compared to traditional circulators.
Available in both stainless steel and cast iron constructions, the 007e series caters to diverse system requirements. Its universal flange design simplifies installation and retrofit projects, ensuring compatibility with existing piping configurations. The 007e-2 model, specifically, features a permanent magnet motor, further boosting its efficiency.
This pump is a “wet rotor” design, meaning the motor is directly immersed in the fluid being circulated. Understanding its features and proper installation, as detailed in this manual, is crucial for maximizing its benefits and ensuring long-term reliability.
Understanding the 007e Series
The Taco 007e series encompasses several models, each designed to meet specific flow rate and head pressure demands within hydronic systems. Key differentiators include material options – stainless steel for potable water applications and cast iron for general heating systems – and varying motor specifications.
The 007e-SF4 and 007e-SU models represent common configurations, while the 007e-2 variant introduces enhanced ECM motor technology. All models share a common platform, simplifying installation and maintenance procedures.
A defining characteristic is the variable speed control, allowing the pump to adjust its performance based on system demand, minimizing energy consumption. Referencing the instruction sheet (02-517A) provides detailed insights into the series’ capabilities and proper application guidelines.

Key Features and Specifications
The Taco 007e boasts a variable speed ECM motor, stainless steel/cast iron builds, and a universal flange design for versatile installation options.
Variable Speed ECM Motor
The Taco 007e utilizes a permanent magnet ECM (Electronically Commutated Motor), delivering significant energy savings compared to traditional circulator motors. This advanced motor technology allows for precise flow control and adjusts pump speed to match heating or cooling demands, optimizing system efficiency.
ECM motors are known for their quiet operation and extended lifespan, reducing maintenance needs and operational costs. The variable speed functionality enables customized comfort levels and minimizes energy waste by avoiding unnecessary circulation. This feature is a core component of the 007e’s high-efficiency design, contributing to substantial long-term savings.
The motor’s design ensures reliable performance and responsiveness to changing system requirements, making it a superior choice for modern hydronic systems.
Stainless Steel and Cast Iron Options
The Taco 007e series offers both stainless steel and cast iron construction options, providing versatility to suit diverse application requirements and system compatibility. Stainless steel models excel in corrosive environments, offering superior resistance to chlorides and other aggressive substances commonly found in certain water systems.
Cast iron options provide robust durability and are well-suited for standard hydronic heating and cooling applications; Both materials ensure long-term reliability and contribute to the pump’s overall longevity. The choice between materials depends on the specific water quality and system demands.
Taco’s commitment to quality materials guarantees consistent performance and minimizes the risk of corrosion or failure, enhancing the overall value of the 007e circulator.
Universal Flange Design
The Taco 007e circulator pump features a universal flange design, significantly simplifying installation and retrofit applications. This standardized flange dimension allows for direct replacement of older circulators, minimizing the need for costly and time-consuming piping modifications.
Compatibility with various system configurations is a key benefit, reducing labor and material expenses. The universal flange ensures a secure and leak-proof connection, contributing to system reliability.
This design element streamlines the upgrade process to high-efficiency ECM technology, making the 007e a practical and cost-effective solution for modernizing hydronic systems. Taco prioritizes ease of installation with this thoughtful engineering feature.

Installation Procedures
Proper installation is crucial for optimal performance. Always prioritize safety by turning off the power supply before beginning, and follow mounting guidelines carefully.
Safety Precautions Before Installation
Before commencing any installation work on the Taco 007e circulator pump, strict adherence to safety protocols is paramount. Crucially, always disconnect and lock out the main power supply to the system to prevent electrical shock. Verify the power is off using a reliable testing device.
Ensure the system is depressurized and cooled before attempting to disconnect any piping. Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, to shield against potential hazards. Inspect the pump and surrounding area for any existing damage or leaks.
Confirm compatibility of the pump with the existing system components. Follow all local and national electrical codes during installation. Improper installation can lead to equipment failure, property damage, or personal injury. If unsure about any aspect of the installation, consult a qualified professional.
Turning Off Power Supply
Prior to any work on the Taco 007e, completely disconnecting the power supply is essential for safety. Locate the circuit breaker or fuse controlling the pump’s electrical circuit. Switch the breaker to the “OFF” position or remove the fuse. Double-check with a voltage tester to confirm that no power is reaching the pump’s wiring connections.
Lockout/Tagout procedures should be implemented to prevent accidental re-energization of the circuit during installation. Clearly label the breaker or fuse with a warning tag indicating that work is in progress.
Never rely solely on the switch position; always verify the absence of voltage. If the wiring is unclear or inaccessible, consult a qualified electrician. Failure to properly de-energize the system poses a significant risk of electrical shock and potential injury.
Mounting Positions and Orientation
The Taco 007e is designed for versatile installation, but specific mounting positions are crucial for optimal performance and longevity. Always install the motor in a horizontal orientation to ensure proper lubrication and prevent motor overheating. Vertical mounting is not recommended.
The electrical junction box position significantly impacts accessibility; Positioning it at 9 o’clock provides the best viewing and access for wiring connections and future maintenance. The pump casing itself can be rotated to adjust the flow direction to suit your system’s piping configuration.
Ensure adequate clearance around the pump for servicing and wiring. Securely mount the pump to a stable surface to minimize vibration and noise.
Horizontal Motor Orientation
Maintaining a horizontal motor orientation is paramount for the Taco 007e circulator pump’s reliable operation. This position ensures the wet rotor design functions correctly, facilitating efficient heat dissipation and proper lubrication of the motor bearings. Vertical installation is explicitly not supported and will likely lead to premature failure.
The horizontal alignment allows gravity to assist in the circulation of the fluid within the pump, maximizing hydraulic performance. Carefully consider the surrounding environment when selecting the mounting location, ensuring adequate airflow around the motor housing.
Proper horizontal mounting minimizes stress on the internal components, extending the pump’s service life.
9 O’Clock Electrical Junction Box Position
For optimal accessibility and ease of viewing, Taco recommends positioning the electrical junction box at the 9 o’clock position during installation of the 007e series pump. This orientation provides clear access to the wiring connections, simplifying the electrical hookup process for technicians.
This configuration enhances visibility during troubleshooting and future maintenance, reducing downtime and improving service efficiency. The 9 o’clock position minimizes strain on the wiring and conduit, preventing potential damage or disconnections.
Always ensure sufficient space around the junction box for safe and convenient access to the wiring terminals.
Flow Direction and Casing Rotation
The Taco 007e pump casing offers rotational flexibility, allowing you to adjust the flow direction to suit your specific system requirements. This adaptability simplifies installation in various piping configurations and minimizes the need for additional fittings or pipe alterations.
The pump casing can be rotated to align with existing pipework, optimizing flow patterns and reducing potential pressure losses. Always ensure the motor remains in a horizontal orientation during casing rotation, maintaining proper lubrication and preventing motor damage.
Carefully consider the desired flow path before rotating the casing, ensuring it aligns with the system’s intended circulation direction.

Electrical Connections
Proper electrical connections are crucial for safe and efficient operation. Refer to the wiring diagrams in this manual and follow grounding instructions carefully.
Wiring Diagrams
Detailed wiring diagrams are essential for correctly connecting the Taco 007e circulator pump to your system’s power supply. These diagrams illustrate the specific wiring configurations for various voltage requirements and control options, including standard voltage and potentially external control inputs.
Always consult the appropriate diagram based on your specific model and application. Pay close attention to the color coding of the wires and ensure secure connections to prevent electrical hazards. Incorrect wiring can damage the pump or create a safety risk. Refer to instruction sheet 02-517A for detailed guidance. The diagrams typically show connections for power, ground, and any speed control wiring, if applicable. Double-check all connections before restoring power.
Grounding Instructions
Proper grounding is critical for the safe and reliable operation of the Taco 007e circulator pump. It ensures electrical safety by providing a path for fault current to flow back to the source, minimizing the risk of electric shock. Connect a dedicated grounding wire, typically green or bare copper, to the designated grounding terminal on the pump’s electrical junction box.
Verify the grounding wire is securely connected to a properly grounded electrical system. Do not rely on water pipes or other non-approved methods for grounding. Improper grounding can lead to equipment malfunction, electrical hazards, and void the warranty. Always adhere to local electrical codes and regulations when performing grounding connections. Consult a qualified electrician if you are unsure about any aspect of the grounding process;

Operational Guidelines

Ensure power is on and the 007e pump starts correctly. Adjust speed control settings for optimal flow, understanding the ECM motor’s efficiency features.
Initial Startup Procedure
Before initiating the Taco 007e, double-check all electrical connections and ensure proper grounding, adhering to the wiring diagrams provided. Verify the pump casing rotation aligns with your desired flow direction.
Once confirmed, carefully restore power to the unit. The pump should start automatically, though initial priming might be necessary depending on the system configuration. Observe for any unusual noises or vibrations during the startup phase.
Utilize the speed control settings to establish the appropriate flow rate for your application. Monitor system pressure and temperature to confirm the pump is operating within its specified parameters. Familiarize yourself with the ECM motor’s characteristics for efficient and reliable performance.
Speed Control Settings
The Taco 007e’s variable speed ECM motor offers precise flow control, optimizing system efficiency and comfort. Adjusting the speed is crucial for matching pump performance to heating or cooling demands. Lower speeds reduce energy consumption and noise levels during periods of low demand.
Higher speeds are necessary for peak heating or cooling loads, ensuring adequate circulation. Experiment with different settings to find the optimal balance between performance and energy savings. Consult the pump performance curves for specific flow rate and head pressure data at various speeds.
Remember that the ECM motor responds dynamically to changes in system conditions, automatically adjusting speed to maintain desired temperatures.
Understanding the ECM Motor
The Taco 007e utilizes an Electronically Commutated Motor (ECM), a permanent magnet motor renowned for its high efficiency and reliability. Unlike traditional motors, ECMs use electronic circuitry to control motor speed and torque, resulting in significantly reduced energy consumption. This technology allows for precise flow control and quieter operation.
The ECM motor’s variable speed capability enables the pump to adapt to varying system demands, optimizing performance and minimizing waste. It eliminates the need for multiple fixed-speed pumps, simplifying system design and reducing installation costs. The permanent magnet design further enhances efficiency and extends motor lifespan.
ECM motors are also known for their improved reliability and reduced maintenance requirements.

Troubleshooting Common Issues
This section addresses typical problems like pump start-up failures, excessive noise, and leakage. Proper diagnosis and solutions are provided to restore optimal 007e performance.
Pump Not Starting
If the Taco 007e fails to start, first verify the power supply is switched on and reaching the pump. Check the circuit breaker or fuse associated with the pump’s electrical circuit. Confirm proper wiring connections according to the provided wiring diagrams, ensuring secure connections.
Inspect the motor for any signs of overheating or damage. A locked rotor condition, where the impeller is obstructed, can also prevent startup. Manually rotate the impeller to check for free movement; if it’s stuck, address the obstruction. Ensure the speed control settings are appropriately configured and not set to ‘off’ or a very low speed. Consult the ECM motor section for further details on motor operation and potential issues.
If problems persist, contact a qualified technician for assistance.
Noisy Operation
Unusual noises from the Taco 007e often indicate air trapped within the pump casing. Properly vent the system to release any accumulated air, following standard hydronic system venting procedures. Check for cavitation, a rumbling or knocking sound, which can occur due to low system pressure or restricted flow. Ensure adequate system pressure and verify that valves are fully open.
Inspect the pump mounting for secure attachment and vibration dampening. Loose mounting hardware can amplify noise. Verify proper alignment with the piping system to avoid strain. Confirm no debris is present within the pump impeller. Listen for bearing noise, which may indicate a failing motor bearing and require professional attention.
If noise continues, consult a qualified technician.
Leakage Problems
Leakage from the Taco 007e typically occurs at the pump seals or flange connections. Inspect the flange gaskets for proper seating and tightness, ensuring they are not damaged or deteriorated. Retighten flange bolts evenly to the manufacturer’s specified torque. Check the pump casing for cracks or imperfections that could cause leaks.
Examine the pump seal for wear or damage; replacement may be necessary. Verify proper pipe alignment to prevent stress on the pump body and connections. Ensure the O-rings are correctly positioned and lubricated during installation. Address any corrosion on mating surfaces that could compromise the seal.
If leakage persists, shut down the system and consult a qualified service professional.

Maintenance and Care
Regular inspection, cleaning, and winterization are crucial for the Taco 007e’s longevity. Follow the schedule to ensure optimal performance and prevent issues.
Regular Inspection Schedule
Consistent monitoring is key to maintaining your Taco 007e circulator pump. A monthly visual inspection should be conducted, checking for any signs of leakage around the pump casing, flange connections, and electrical junction box.
Verify that the motor is operating quietly and without excessive vibration. Annually, a more thorough inspection is recommended, including checking the pump’s performance curve against the original specifications to ensure it’s operating efficiently.
Inspect wiring connections for corrosion or damage, and ensure proper grounding. Review the speed control settings to confirm they align with the system’s heating or cooling demands. Document all inspection findings and any maintenance performed for future reference and warranty purposes.
Cleaning Procedures
Maintaining a clean pump environment is crucial for optimal performance. Before any cleaning, always disconnect power to the Taco 007e to prevent electrical shock. Exterior surfaces can be wiped down with a damp cloth and mild detergent, avoiding abrasive cleaners that could damage the finish.
Inspect the pump casing for debris accumulation and remove any obstructions that may impede water flow. If scaling or mineral deposits are present, a descaling solution specifically designed for plumbing systems can be used, following the manufacturer’s instructions carefully.
Ensure all cleaning agents are thoroughly rinsed to prevent corrosion. Avoid direct water contact with the electrical components and allow the pump to dry completely before restoring power.
Winterization Steps
Protecting your Taco 007e from freezing temperatures is essential to prevent damage. First, disconnect power to the pump. Drain the entire system, including the pump casing, to remove all water. Open drain valves and utilize a low-point drain if available.
Consider adding a plumbing antifreeze specifically designed for closed-loop systems, following the manufacturer’s dilution instructions. Ensure the antifreeze is compatible with the pump’s materials. Circulate the antifreeze briefly to coat all internal surfaces.
After draining and protecting, leave drain valves open during the winter months. Inspect the pump in the spring before restarting the system.

Technical Data and Dimensions
This section provides detailed pump performance curves and dimensional drawings for the Taco 007e series, aiding in proper system integration and planning.
Pump Performance Curves
Understanding the pump performance curves is crucial for selecting the correct Taco 007e model for your specific heating or cooling system requirements. These curves graphically illustrate the relationship between flow rate (gallons per minute ⏤ GPM) and head (feet of water).
Each curve represents a different speed setting achievable with the ECM motor, allowing for precise control and optimization of system performance. Analyzing these curves enables engineers and installers to determine the pump’s operating point, ensuring efficient circulation and minimizing energy consumption.
The curves detail the pump’s capacity at various head pressures, providing valuable data for system design and troubleshooting. Refer to the specific curve corresponding to your chosen 007e model and desired operating speed for accurate performance predictions.
Detailed Dimensional Drawings
Accurate installation hinges on utilizing the detailed dimensional drawings provided within this manual for the Taco 007e circulator pump. These drawings offer precise measurements of all critical components, including flange dimensions, motor size, and overall pump length.
They are essential for verifying adequate space within the system and ensuring proper alignment with existing piping. The drawings clearly illustrate the location of mounting holes, electrical connections, and the junction box position, facilitating a streamlined installation process.
Carefully review these diagrams before commencing any work to avoid potential compatibility issues or modifications. Properly referencing these drawings guarantees a secure and efficient integration of the 007e pump into your heating or cooling infrastructure.

Warranty Information
The Taco 007e series is backed by a comprehensive warranty, covering defects in materials and workmanship. Detailed coverage and claim procedures are outlined herein.
Coverage Details
This warranty covers defects in materials and workmanship as related to the Taco 007e circulator pump, beginning from the date of original purchase. It specifically includes coverage for the pump’s motor, casing, and impeller, ensuring reliable operation.
However, the warranty does not extend to damage resulting from improper installation, misuse, neglect, or unauthorized modifications. Normal wear and tear, as well as damage caused by freezing or corrosion, are also excluded.
The warranty is valid only if the pump is installed and used in accordance with the manufacturer’s instructions. Proof of purchase is required for all warranty claims. Taco Comfort Solutions reserves the right to inspect any claimed defect before authorizing repair or replacement.
Claim Procedures
To initiate a warranty claim for your Taco 007e circulator, first contact your original supplier or a qualified Taco representative. Provide them with the pump’s model number, serial number, date of purchase, and a detailed description of the defect.
You will likely be asked to provide proof of purchase, such as a sales receipt or invoice. The Taco representative may request photographs or a return of the defective pump for inspection.
Upon verification of the claim, Taco Comfort Solutions will, at its discretion, repair or replace the defective pump. Shipping costs for the returned pump may be the responsibility of the claimant. All claims must be submitted within the warranty period to be considered valid.

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