1. Product Overview
The Zoeller "Flow-Mate" Sump & Effluent Pump, Model N145, is designed for residential or light commercial applications, including groundwater, septic tank, low pressure pipe (LPP), and enhanced flow STEP systems. This durable cast iron submersible pump features a powder-coated epoxy finish for corrosion prevention and is engineered for efficient heat dissipation, ensuring a long service life. Each unit undergoes rigorous testing to guarantee quality and reliability.
Figure 1: Zoeller N145 Sump & Effluent Pump. This image shows the green, cast iron pump unit with its electrical cord and discharge outlet.
Key Features:
- Durable cast iron cap, motor housing, pump housing, and base.
- Corrosion-resistant, powder coated epoxy finish.
- Motor: 60 Hz, 3450 RPM, oil-filled, hermetically sealed, automatic reset, thermal overload protected.
- Carbon/ceramic mechanical shaft seals.
- Assembled with stainless steel bolts and a stainless steel lifting handle.
- 1½" NPT vertical discharge.
- Passes ¾" spherical solids.
- Operates at temperatures up to 130°F (54°C) in effluent or dewatering applications.
- 20 ft, UL listed neoprene cord with molded plug cap and ground wire.
- Engineered thermoplastic, single vane impeller design.
- Upper sleeve and lower ball bearing running in bath of oil.
2. Safety Information
Always disconnect power before servicing or installing the pump. Ensure proper grounding to prevent electrical shock. Do not operate the pump dry. Refer to local codes and regulations for installation requirements. This pump is designed for water and effluent only; do not use for flammable or corrosive liquids.
3. Setup and Installation
- Unpacking: Carefully remove the pump from its packaging. Inspect for any shipping damage.
- Location: Place the pump in a sump pit or basin that is clean and free of debris. Ensure the pit is large enough to allow the float switch (if applicable) to operate freely without obstruction.
- Discharge Piping: Connect 1½" NPT discharge piping to the pump outlet. Use a check valve in the discharge line to prevent backflow of water into the pit. Ensure all connections are watertight.
- Electrical Connection: Connect the pump to a dedicated, properly grounded 115 Volt, 60 Hz electrical circuit. The circuit should be protected by a ground fault circuit interrupter (GFCI). Do not remove the ground pin from the plug.
- Float Switch (if applicable): If using an external float switch, ensure it is positioned to activate and deactivate the pump at desired water levels. Test its operation before final installation.
- Ventilation: Ensure the sump pit is adequately vented according to local plumbing codes.
4. Operating Instructions
- Initial Start-up: After installation, ensure the pump is fully submerged in water. Plug the pump into the grounded outlet.
- Automatic Operation: For models with an automatic float switch, the pump will activate when the water level rises to the "on" level and deactivate when it drops to the "off" level.
- Manual Operation: For manual models, the pump will run continuously when plugged in. Monitor water levels to prevent dry running.
- Testing: Periodically test the pump by filling the sump pit with water to ensure it activates and pumps out water correctly.
Control Panel Options:
This pump can be used with the following control panels:
- Model 10-1039
- Model 10-1041
5. Maintenance
Regular maintenance ensures optimal performance and extends the life of your pump.
- Disconnect Power: Always disconnect the pump from the power source before performing any maintenance.
- Clean Sump Pit: Periodically inspect and clean the sump pit to remove any debris, sediment, or foreign objects that could obstruct the pump or float switch.
- Inspect Impeller: Check the impeller for any clogs or damage. Clear any obstructions carefully.
- Check Discharge Line: Ensure the discharge line is free of blockages and that the check valve is functioning correctly.
- Inspect Cord and Plug: Examine the power cord and plug for any signs of damage or wear. Replace if necessary.
- Winterization (if applicable): If the pump is in an area subject to freezing, ensure it is properly drained or removed and stored in a warm, dry place during winter months.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not run. | No power; tripped circuit breaker/GFCI; faulty float switch; motor overload. | Check power supply; reset breaker/GFCI; inspect/replace float switch; allow motor to cool and reset. |
| Pump runs but does not pump water. | Clogged impeller; air lock; discharge line blockage; low water level. | Disconnect power and clear impeller; prime pump; clear discharge line; ensure adequate water level. |
| Pump runs continuously. | Stuck float switch; check valve failure; continuous water inflow. | Inspect/free float switch; replace check valve; identify and address source of continuous water. |
| Pump cycles too frequently. | Sump pit too small; float switch set incorrectly; backflow from discharge line. | Consider larger pit; adjust float switch settings; check/replace check valve. |
7. Specifications
| Attribute | Value |
|---|---|
| Brand | Zoeller |
| Model Number | N145 |
| Part Number | 145-0002 |
| Power Source | Corded Electric |
| Voltage | 115 Volts |
| Horsepower | 0.75 HP |
| Maximum Flow Rate | 61 Gallons Per Minute (GPM) |
| Maximum Lifting Height (Head) | 74 Feet |
| Discharge Size | 1½" NPT Vertical |
| Solids Handling | Passes ¾" spherical solids |
| Cord Length | 20 Feet (UL listed neoprene) |
| Material | Cast Iron |
| Color | Green |
| Item Weight | Approximately 0.01 Ounces (Note: This weight seems incorrect based on typical pump weights, likely a data entry error in source. Actual weight would be significantly higher.) |
| Operating Temperature | Up to 130°F (54°C) in effluent or dewatering applications |
| UPC | 053514213411 |
8. Warranty and Support
For warranty information and technical support, please contact Zoeller directly or visit their official website. Keep your purchase receipt as proof of purchase for warranty claims.
Zoeller Company Contact Information:
- Website: www.zoellerpumps.com
- Refer to the product packaging or the official Zoeller website for the most current contact details and warranty terms.
