1. Product Overview
The Eastman EZ-FLO 70601 Nevercold Under Sink Hot Water Recirculating Pump is designed to provide hot water at your faucet without extended waiting times. This system circulates hot water through your existing plumbing, ensuring hot water is readily available when needed. It features a patented design for under-sink operation and includes a built-in programmable timer for efficient use.
This recirculating pump is intended for use in homes with standard single-pipe plumbing systems up to 250 feet. It is not suitable for use with tankless water heaters.
Image 1.1: The EZ-FLO 70601 Nevercold Under Sink Hot Water Recirculating Pump and included fittings.
2. Safety Information
- Read all instructions carefully before installation and operation.
- Ensure the electrical supply is disconnected before performing any installation or maintenance.
- An electrical outlet at the sink is required for installation. Ensure the outlet is properly grounded.
- Do not operate the pump if the power cord or plug is damaged.
- This product is designed for indoor use only.
- Do not use this pump with tankless water heaters.
- Consult a qualified plumber or electrician if you are unsure about any part of the installation process.
3. Package Contents
Verify that all components are present before beginning installation:
- 1x Stainless Recirculating Pump with pre-wired 10 ft power cord
- 2x 3/4 inch NPT Male Threaded Stainless Steel Flanges
- 2x Flange Gaskets
- 2x Flex Hoses (3/4 inch NPT x 3/4 inch NPT, 24 inch long)
- 2x Tees (1/2 inch Compression x 3/4 inch NPT x 1/2 inch Compression)
Image 3.1: All components included in the EZ-FLO 70601 Nevercold Recirculating Pump kit.
4. Installation
The EZ-FLO 70601 Nevercold pump is designed for under-sink installation. Proper installation requires a standard single-pipe plumbing system and an accessible electrical outlet under the sink.
4.1 Pre-Installation Checks
- Confirm your home has a standard single-pipe plumbing system.
- Ensure an electrical outlet is available under the sink where the pump will be installed.
- Turn off the main water supply and drain the hot and cold water lines at the installation point.
4.2 Installation Steps
- Mount the recirculating pump securely under the sink. Ensure it is positioned to allow for hose connections and access to the timer.
- Connect the provided flex hoses to the hot and cold water supply lines under the sink using the included tees and flanges. Follow local plumbing codes.
- Connect the pump to the flex hoses. Ensure all connections are tight to prevent leaks.
- Slowly turn on the main water supply and check for any leaks. Tighten connections as necessary.
- Plug the pump's power cord into the grounded electrical outlet.
Image 4.1: Diagram illustrating the under-sink installation of the recirculating pump.
Image 4.2: Schematic of a typical hot water recirculation system with the pump installed at the furthest point from the water heater.
5. Setup and Operation
The Nevercold recirculating pump is equipped with a built-in programmable timer and an aquastat (temperature sensor) to manage hot water circulation.
5.1 Setting the Programmable Timer
The integrated timer allows you to set specific periods during the day when the pump will activate. This ensures hot water is available during peak demand times, such as mornings and evenings, without continuous operation.
- Refer to the timer's specific instructions for setting the desired on/off cycles.
- Typically, you will push in segments on the timer dial corresponding to the hours you want the pump to operate.
- Ensure the current time is correctly set on the timer for accurate scheduling.
Image 5.1: Detail of the programmable timer on the recirculating pump.
5.2 Automatic Operation
When the pump is activated (either by the timer or manually), it circulates water until the aquastat detects that the water temperature has reached a set hot temperature. Once the desired temperature is achieved, the pump automatically shuts off, conserving energy.
6. Maintenance
Regular maintenance ensures the longevity and efficient operation of your recirculating pump.
6.1 Flushing for Maintenance
The system is designed for easy flushing when maintenance or replacement is necessary. Consult a qualified plumber for detailed flushing procedures, which typically involve isolating the pump, draining the lines, and flushing with appropriate solutions if scale buildup is a concern.
6.2 Cleaning
Periodically inspect the pump and connections for any signs of leaks or corrosion. Clean the exterior of the pump with a damp cloth as needed. Do not use abrasive cleaners.
7. Troubleshooting
If you encounter issues with your Nevercold recirculating pump, refer to the following common troubleshooting steps:
- Pump Not Running:
- Check if the pump is properly plugged into a working electrical outlet.
- Verify the timer settings. Ensure the pump is scheduled to run at the current time.
- Check for tripped circuit breakers.
- No Hot Water / Water Not Hot Enough:
- Ensure the water heater is functioning correctly and set to an adequate temperature.
- Confirm the pump is running during the desired times.
- Check if the aquastat sensor is properly installed and functioning.
- Verify that the system is not being used with a tankless water heater, as this pump is not compatible.
- Leaks:
- Immediately turn off the water supply and disconnect power to the pump.
- Inspect all connections for tightness. Use plumber's tape or pipe sealant on threaded connections if necessary.
- Check hoses for damage or improper seating.
If problems persist after attempting these steps, contact customer support or a qualified professional.
8. Specifications
| Model Number | 70601 |
| Manufacturer | EZ-FLO |
| Brand | Eastman |
| Material | Stainless Steel |
| Power Source | Corded Electric |
| Item Weight | 907 g (approx. 2 lbs) |
| Product Dimensions (L x W x H) | 20.02 x 20.96 x 22.86 cm (7.88 x 8.25 x 9 inches) |
| Plumbing System Compatibility | Standard single-pipe plumbing systems up to 250 ft. Not for use with tankless water heaters. |
| Certifications | Meets California Title 24 on-call requirements |
| UPC | 091712028499 |
Image 8.1: The EZ-FLO 70601 pump is certified to meet California Title 24 on-call requirements.
9. Warranty and Support
For warranty information or technical support, please refer to the manufacturer's official website or contact their customer service department. Keep your purchase receipt as proof of purchase.
Manufacturer: EZ-FLO
Brand: Eastman
