1. Introduction
This manual provides instructions for the safe installation, operation, and maintenance of the Eemax HATB007240 Tank Water Heater Booster. Please read this manual thoroughly before installation and use to ensure proper function and safety.
The Eemax HATB007240 is an electric hot water auto booster designed for whole-house applications, suitable for both commercial and residential use. It enhances the performance of existing tank water heaters by increasing the deliverable hot water volume by up to 45% and maintaining consistent temperatures. Key features include a compact design with zero clearance requirements, a digital user interface, and external controls for adjustable settings.
Image 1: Front view of the Eemax HATB007240 Tank Water Heater Booster, showing the digital display and control knob.
2. Important Safety Information
WARNING: Installation must be performed by a qualified electrician and plumber in accordance with all national, state, and local electrical and plumbing codes. Failure to do so may result in property damage, serious injury, or death.
- Disconnect power before servicing the unit.
- Ensure proper grounding of the appliance.
- Do not operate the unit if it is damaged.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Water temperatures above 125°F (52°C) can cause severe burns or scalding. Exercise caution when setting temperatures.
Proposition 65 Warning:
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
3. Setup and Installation
3.1 Unpacking
Carefully remove the unit from its packaging. Inspect the unit for any visible shipping damage. Retain the packaging for future transport or in case a return is necessary.
3.2 Location Requirements
- Install the unit indoors, in a location protected from freezing temperatures.
- Mount the unit vertically on a solid, stable surface.
- The compact design allows for zero clearance requirements, but ensure adequate space for servicing.
- For optimal performance, install the booster as close as possible to the hot water tank outlet.
3.3 Plumbing Connections
The unit features 3/4 inch NPT (National Pipe Taper) water connections. Connect the booster in series with the hot water outlet of your existing tank water heater. Ensure all plumbing connections are tight and watertight to prevent leaks.
Image 2: Rear view of the Eemax HATB007240 Tank Water Heater Booster, illustrating the plumbing inlet and outlet connections.
3.4 Electrical Connections
WARNING: Electrical installation must be performed by a qualified electrician in accordance with all applicable codes.
- The Eemax HATB007240 requires a 240V, 30A electrical service.
- Connect the unit to a dedicated circuit breaker.
- Ensure the proper wire gauge (e.g., 10 AWG for a 30A circuit) is used, adhering to all local electrical codes.
- The unit has a maximum wattage of 7200W.
4. Operating Instructions
4.1 Initial Startup
- Ensure all plumbing connections are secure and leak-free.
- Open a hot water faucet in your home to purge any air from the system.
- Close the faucet once water flows steadily without sputtering.
- Turn on the electrical power to the unit at the circuit breaker.
- The digital display on the unit will illuminate, indicating it is powered on.
4.2 Temperature Adjustment
Use the control knob located on the front panel to adjust the desired output water temperature. The digital display will show the currently set temperature. The adjustable temperature range for this unit is 80°F to 140°F (approximately 26.7°C to 60°C). The unit is designed to maintain the set temperature with an accuracy of +/- 1°F.
4.3 Flow Activation
The booster activates automatically when it detects a minimum water flow of 0.3 GPM (gallons per minute). Upon activation, it will begin heating the water to the user-set temperature as it passes through the unit, providing a consistent supply of hot water.
5. Maintenance
WARNING: Always disconnect electrical power to the unit before performing any maintenance or servicing.
5.1 General Cleaning
Wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or internal components.
5.2 Sediment Filter (if applicable)
If your installation includes an inline sediment filter, it should be checked and cleaned annually or more frequently depending on your local water quality. Refer to the filter manufacturer's instructions for cleaning or replacement.
5.3 Field Replaceable Element
The heating element within the Eemax HATB007240 is designed to be field replaceable. If the heating element requires replacement, it is recommended to consult a qualified service technician to ensure proper and safe replacement.
6. Troubleshooting
- No Hot Water:
- Verify that electrical power is supplied to the unit and the digital display is active.
- Check the circuit breaker connected to the unit; reset if it has tripped.
- Ensure that the water flow rate is above the minimum activation threshold of 0.3 GPM.
- Confirm the desired temperature is correctly set on the digital display.
- Inconsistent Water Temperature:
- Ensure your main tank water heater is functioning correctly and providing adequately heated water to the booster.
- Check for proper water flow rate; extremely low or high flow rates can sometimes affect the booster's ability to maintain a consistent temperature.
- Verify the temperature setting on the booster unit.
- Water Leaks:
- Immediately shut off the water supply to the unit and disconnect electrical power.
- Inspect all plumbing connections for tightness. Tighten any loose connections.
- If leaks persist after checking connections, contact Eemax customer support or a qualified plumber.
7. Specifications
| Feature | Specification |
|---|---|
| Model | HATB007240 |
| Brand | Eemax |
| Product Type | Tank Water Heater Booster |
| Wattage | 7200 W |
| Voltage | 240 V |
| Amperage | 30 A |
| Minimum Flow Activation | 0.3 GPM |
| Temperature Range | 80°F to 140°F (26.7°C to 60°C) |
| Temperature Accuracy | +/- 1°F |
| Water Connection | 3/4 inch NPT |
| Product Dimensions | 10 x 10 x 14 inches |
| Item Weight | 5 pounds |
| Certification | ETL |
Energy Guide Information
Image 3: EnergyGuide label for the Eemax HATB007240, showing an estimated yearly energy cost of $74 and a maximum hot water flow rate of 0.7 GPM.
- Estimated Yearly Energy Cost: $74 (based on 0.12 KWh and 615 KWh yearly energy use)
- Maximum Flow Rate (Instantaneous Water Heater - Electric): 0.7 GPM
8. Warranty Information
Eemax products are manufactured under strict quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Eemax website. It is important to retain your proof of purchase for any warranty claims.
9. Customer Support
If you have questions, require technical assistance, or need to troubleshoot issues with your Eemax HATB007240 Tank Water Heater Booster, please contact Eemax customer support.
- Visit the Eemax Store on Amazon for product information and resources.
- Refer to the official Eemax website (eemax.com) for contact details, FAQs, and further support documentation.
