1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your North Star NST45ED1-45,300GR Two Tank Water Softener. Please read these instructions carefully before beginning installation or operation to ensure proper function and longevity of your system. This water softener is designed to reduce hardness minerals from your water supply, improving water quality for household use.
2. Important Safety Information
Always observe basic safety precautions when installing, operating, or performing maintenance on this appliance. Failure to do so could result in personal injury or property damage.
- Ensure all electrical connections are made by a qualified electrician and conform to local codes.
- Turn off the main water supply and relieve water pressure before performing any service.
- Do not operate the system if any part is damaged or leaking.
- Keep children and pets away from the unit during operation and maintenance.
- Use only potable water in the system.
3. What's in the Box
Your North Star NST45ED1-45,300GR Two Tank Water Softener package includes the following components:
- Resin Tank with Control Head
- Brine Tank
- Custom Fit Bypass Valve
- Power Adapter
- Installation Guide and User Manual
4. Setup and Installation
Proper installation is crucial for the optimal performance of your water softener. It is recommended that installation be performed by a qualified plumber.
4.1 Site Selection
Choose a location that is:
- Close to the main water supply line.
- Near a suitable drain for regeneration discharge.
- Protected from freezing temperatures and direct sunlight.
- Level and capable of supporting the weight of the unit when full of water and salt.
4.2 Plumbing Connections
The system requires a 1-inch NPT standard connection size. The custom fit bypass valve allows for easy isolation of the softener for maintenance without interrupting the household water supply.
4.3 Electrical Connection
Connect the power adapter to a standard electrical outlet. The unit operates on electric demand, utilizing AutoSense Technology.
An image showing the complete North Star NST45ED1 two-tank water softener system, featuring the resin tank with the control head on top and the separate brine tank. This illustrates the physical components of the system.
5. Operating Instructions
Your North Star NST45ED1 water softener is designed for efficient and automatic operation.
5.1 Initial Startup
- Ensure all plumbing connections are secure and leak-free.
- Slowly open the main water supply valve to fill the resin tank.
- Plug in the power adapter. The control head will initiate its startup sequence.
- Add water to the brine tank until it covers the bottom grid, then add water softener salt.
- Follow the control head's instructions to set the time and water hardness level.
5.2 AutoSense Technology
The NST45ED1 utilizes AutoSense Technology to monitor your household's water usage. This intelligent system automatically determines the optimal frequency for regeneration cycles, minimizing both salt and water consumption. No manual scheduling of regeneration is typically required under normal operating conditions.
5.3 Regeneration Cycle
The system performs reverse flow regeneration, which is a highly effective method for cleaning the resin bed. During regeneration, the unit will flush accumulated hardness minerals to the drain and replenish the resin with sodium ions from the brine tank. Avoid using hot water during a regeneration cycle to prevent drawing untreated water into the hot water heater.
6. Maintenance
Regular maintenance ensures the continued efficiency and performance of your water softener.
6.1 Salt Refilling
Periodically check the salt level in the brine tank. Refill with high-quality water softener salt (pellets or crystals) when the salt level drops below one-quarter full. Do not use rock salt or ice melt products.
6.2 Brine Tank Cleaning
It is recommended to clean the brine tank annually to remove any sediment or salt mush that may accumulate. To clean:
- Bypass the water softener.
- Remove all salt and any remaining water from the brine tank.
- Scrub the interior of the tank with a mild detergent and rinse thoroughly.
- Return the brine well and other components, then refill with salt and water.
- Return the softener to service.
7. Troubleshooting
This section addresses common issues you might encounter with your water softener.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water is not soft | No salt in brine tank Bypass valve open Incorrect hardness setting | Add salt Close bypass valve Adjust hardness setting on control head |
| Excessive salt usage | Incorrect hardness setting Frequent regeneration cycles | Verify and adjust hardness setting Ensure no excessive water usage causing frequent regeneration |
| Water pressure drop | Clogged pre-filter (if installed) Resin bed fouled | Clean or replace pre-filter Contact a service technician for resin bed cleaning or replacement |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact customer support.
8. Technical Specifications
The North Star NST45ED1-45,300GR water softener is engineered for reliable performance in medium to large households.
- Model Number: NST45ED1
- Max Capacity (grains): 45,300
- Household Size: 1-6+ people
- Resin (cu. ft): 1.26
- Standard Connection Size: 1" NPT
- Valve: 1" valve; up to 1 1/4" plumbing
- Intermittent Flow Rate (gpm @ 30 psi drop): 18.6
- Clear Water Iron Removal (ppm): 12
- Electric Demand: Yes
- Max. Efficiency (per minimum salt dose): 5,070 @ 2.6 lbs
- NSF Certification (NSF/ANSI standard): 44 & 372
- Supported Water TDS Level Maximum (PPM): 12
- Dimensions (Resin Tank and Electronics): H 50" X W 10 1/2"
- Dimensions (Brine Tank): H 39" X W 18"
- Package Dimensions: 60 x 24 x 24 inches
- Weight: Approximately 120 Pounds (shipping weight)
A detailed table comparing various North Star water softener models, including specifications such as model number, part number, max capacity, resin volume, standard connection size, flow rates, iron removal, and dimensions. The NST45ED1 model is included within this table for reference.
9. Warranty and Support
9.1 Product Warranty
Your North Star NST45ED1-45,300GR Water Softener comes with the following warranty:
- 1 Year: All parts
- 3 Years: Electronic control board
- 10 Years: Salt storage and mineral tank
This warranty covers defects in materials and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For technical assistance, warranty service, or to order replacement parts, please contact North Star customer support. Refer to the contact information provided with your product packaging or visit the official North Star website.
