1. Product Overview
The KolerFlo H15GR-20 is a 120W automatic water pressure booster pump designed to increase water pressure in various household applications. It features a flow switch for automatic operation and is suitable for duplex apartments, suburban villas, water heater pressurization, and irrigation systems. This pump helps maintain steady water pressure, especially for water heaters with insufficient supply.
Image 1: KolerFlo H15GR-20 Water Pressure Booster Pump with key features highlighted.
Key Features:
- Automatic Operation: Equipped with a flow switch that automatically adjusts to water demand, maintaining steady pressure.
- Durable Construction: Features a 120W pure copper motor, all-copper pump head, and full brass fittings for longevity.
- Wide Application: Ideal for boosting water pressure in homes, water heaters, and irrigation systems.
- Energy Efficient: Designed for energy-saving operation.
- Quiet Performance: Engineered for low noise and reduced vibration during operation.
2. Safety Information
Before installation or operation, please read and understand all safety instructions. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the power supply matches the pump's specifications (115VAC).
- Always disconnect power before performing any maintenance or installation.
- Install the pump in a dry, well-ventilated area, protected from direct weather exposure.
- Do not run the pump dry. Ensure water is flowing through the system before starting.
- Use appropriate thread sealant (e.g., high-quality Teflon tape) on all threaded connections to prevent leaks.
- Consult a qualified plumber or electrician if you are unsure about any installation steps.
3. Setup and Installation
The KolerFlo H15GR-20 pump is designed for easy installation. A wrench is typically the only tool required for connections. Ensure all connections are secure to prevent leaks.
Installation Steps:
- Choose Location: Select a suitable location for the pump, ideally near the water source requiring pressure boosting. Ensure it is protected from moisture and extreme temperatures.
- Prepare Piping: The pump has 1/2" NPT connections. Ensure your existing plumbing is compatible or use appropriate adapters (e.g., 3/4" to 1/2" union if needed).
- Connect Inlet/Outlet: Connect the water inlet pipe to the pump's INLET port and the water outlet pipe to the OUTLET port. Follow the flow direction indicated by the arrow on the pump.
- Secure Connections: Use a wrench to tighten all connections. Apply high-quality thread sealant to prevent leaks.
- Mount Pump: Securely mount the pump to a stable surface to minimize vibration and noise.
- Connect Flow Switch: Ensure the flow switch is correctly installed in the water line, following its directional arrow.
- Power Connection: Plug the pump into a grounded 115VAC power outlet.
Image 2: Diagram illustrating typical installation for gas water heaters and main water pipes.
Image 3: Example of the booster pump installed to enhance water pressure for a shower and water heater.
4. Operating Instructions
The pump features a control box with a switch for different operating modes.
Image 4: Close-up of the control switch with 'MOVE', 'STOP', and 'AUTO' settings.
Control Switch Settings:
- STOP: Turns the pump off.
- MOVE (Manual Mode): The pump runs continuously, regardless of water flow. This mode can be used for purging air from the lines or for continuous operation when needed. Avoid running in this mode for extended periods without water flow to prevent damage.
- AUTO (Automatic Mode): This is the standard operating mode. The pump will automatically turn on when water flow is detected (e.g., when a faucet is opened) and turn off when water flow stops. This mode utilizes the integrated flow switch for efficient operation.
After installation, set the switch to 'AUTO' for normal use. The pump will then operate automatically based on water demand.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your booster pump.
- Regular Inspection: Periodically check all connections for leaks. Tighten any loose fittings.
- Clean Filter (if applicable): If your system includes an inline filter before the pump, clean or replace it regularly to prevent debris from entering the pump.
- Winterization: In areas subject to freezing temperatures, drain the pump and associated piping to prevent damage from ice expansion.
- Avoid Dry Running: Ensure the pump always has water flowing through it during operation to prevent overheating and damage.
6. Troubleshooting
If you encounter issues with your KolerFlo H15GR-20 booster pump, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not turn on. | No power; Switch in 'STOP' position; No water flow detected (in 'AUTO' mode). | Check power connection and circuit breaker; Set switch to 'AUTO' or 'MOVE'; Ensure water supply is open. |
| Pump runs but no water pressure increase. | Air in the system; Inlet/outlet valves closed; Pump running dry; Clogged impeller. | Purge air from the system (use 'MOVE' mode briefly); Open all valves; Ensure adequate water supply; Inspect and clean impeller. |
| Pump turns on and off rapidly (cycling). | Small leak in the system; Faulty flow switch; Air in the system. | Check all connections for leaks and tighten; Inspect flow switch for proper function; Purge air from the system. |
| Water leaks from connections. | Loose connections; Insufficient thread sealant; Damaged O-rings/washers. | Tighten connections with a wrench; Reapply high-quality thread sealant; Replace damaged O-rings or washers. |
| Excessive noise or vibration. | Loose mounting; Air in the system; Debris in pump; Worn bearings. | Securely mount the pump; Purge air; Inspect for debris; Contact support if noise persists. |
If the problem persists after attempting these solutions, please contact customer support.
7. Specifications
Detailed technical specifications for the KolerFlo H15GR-20 Water Pressure Booster Pump.
Image 5: Detailed dimensions and technical data label for the pump.
| Specification | Value |
|---|---|
| Model Number | H15GR-20 |
| Power | 120W |
| Voltage | 115VAC |
| Max Pressure | 1.5 bar (21.7 PSI) |
| Max Flow Rate | 25 L/min (396 GPH) |
| Max Head | 15m (49.2 ft) |
| Connection Size | 1/2" NPT |
| Liquid Temperature Range | 0°F to +212°F (0°C to +100°C) |
| Material | Copper |
| Included Components | Flow switch |
8. Warranty and Support
KolerFlo provides the following support for your H15GR-20 Water Pressure Booster Pump:
- Return Policy: 30 days free return.
- Parts Replacement: 3 months replacement for fittings parts.
For any issues or inquiries regarding your product, please contact KolerFlo customer service. Ensure you have your model number (H15GR-20) and purchase details available for faster assistance.