Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your USHA Aquerra 10 Litre 5 Star Storage Water Heater. Please read these instructions carefully before installation and use, and retain them for future reference. This appliance is designed to provide hot water for domestic use.
Image: Front view of the USHA Aquerra 10 Litre Storage Water Heater, showcasing its compact design and control knob.
Safety Instructions
Failure to follow these safety instructions may result in electric shock, fire, property damage, or personal injury. Always ensure the appliance is installed by qualified personnel.
- Electrical Safety: Ensure the power supply matches the appliance's rating (230 Volts, 2000 Watts). The water heater must be properly grounded. Do not operate with wet hands.
- Water Pressure: The maximum operating pressure is 8 Bars. Ensure your water supply pressure is within this limit.
- Installation: Installation must be performed by a certified technician to prevent hazards. Do not attempt to install or repair the unit yourself.
- Temperature Control: Avoid setting the temperature too high to prevent scalding.
- Children and Vulnerable Persons: This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
- Maintenance: Disconnect power before any maintenance or cleaning.
Image: Diagram illustrating the 5 safety features of the USHA Aquerra water heater, including Glass Line Enamel Coating Heating Element.
Setup and Installation
1. Unpacking
Carefully remove the water heater from its packaging. Inspect for any damage. Retain packaging for future transport if needed. Included components are: 1 unit Product, Instruction Manual, Warranty Card.
2. Wall Mounting
The USHA Aquerra water heater is designed for wall mounting. Choose a suitable location that can support the weight of the heater when full (approximately 10 kg water + 8.69 kg unit weight = ~18.69 kg). Ensure adequate clearance for maintenance and proper ventilation. The product dimensions are 35.5W x 35.5H Centimeters.
Image: Rear view of the water heater, detailing the back mounting mechanism and clearly labeled inlet (blue) and outlet (red) connections.
3. Plumbing Connections
- Connect the cold water inlet (marked blue) to your main cold water supply.
- Connect the hot water outlet (marked red) to the hot water tap or distribution system.
- Ensure all connections are tight to prevent leaks. Use appropriate sealing materials.
- Install a pressure relief valve if required by local codes.
4. Electrical Connections
- Ensure the power supply is switched off at the main circuit breaker before making any electrical connections.
- Connect the water heater to a dedicated electrical circuit with appropriate fusing or circuit breaker.
- The appliance requires a 230 Volts, 50 Hz AC supply and has a power rating of 2000 Watts.
- Ensure proper grounding is established for safety.
Operating Instructions
1. Filling the Tank
Before switching on the power, open a hot water tap in your home to allow air to escape from the tank. The tank is full when water flows steadily from the hot water tap.
2. Powering On and Temperature Adjustment
Once the tank is full, close the hot water tap and switch on the electrical power supply to the water heater. Use the temperature control knob on the front of the unit to set your desired water temperature. The indicator light will illuminate when heating is active.
Image: Close-up of the USHA Aquerra water heater's control panel, showing the power indicator and temperature adjustment knob.
3. Initial Heating
Allow approximately 15-20 minutes for the 10-litre tank to heat the water to the set temperature. The indicator light will turn off once the desired temperature is reached, and the heater will maintain this temperature automatically.
Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your water heater. Always disconnect the power supply before performing any maintenance.
- External Cleaning: Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Anode Rod Inspection: The anode rod protects the tank from corrosion. It should be inspected and replaced by a qualified technician every 1-2 years, depending on water quality.
- Descaling: In areas with hard water, mineral deposits can accumulate on the heating element and inside the tank. Descaling should be performed periodically by a qualified technician to maintain efficiency.
- Pressure Relief Valve: Periodically check the pressure relief valve to ensure it is not blocked and functions correctly.
Troubleshooting
Before contacting customer support, please refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water | No power supply; thermostat set too low; heating element failure. | Check circuit breaker/fuse; adjust thermostat; contact service for element replacement. |
| Water not hot enough | Thermostat set too low; excessive hot water usage; mineral buildup. | Increase thermostat setting; allow more recovery time; descale the tank (professional service). |
| Water leaking from unit | Loose plumbing connections; faulty pressure relief valve; tank corrosion. | Tighten connections; inspect/replace pressure relief valve; contact service for tank inspection. |
| Unusual noises (e.g., popping, rumbling) | Sediment buildup in the tank. | Drain and flush the tank; professional descaling may be required. |
Product Specifications
| Brand | USHA |
| Model Number | 4687AQ10AX526N |
| Capacity | 10 Liters |
| Power Source | Electric |
| Wattage | 2000 Watts |
| Voltage | 230 Volts |
| Product Dimensions (W x H) | 35.5W x 35.5H Centimeters |
| Item Weight | 8690 Grams |
| Maximum Pressure | 8 Bars |
| Mount Type | Wall |
| Material Type | Acrylonitrile Butadiene Styrene |
| Efficiency | 5 Star Energy Efficient (High Efficiency) |
Image: Power Savings Guide label indicating 5-star energy efficiency and standing loss of 0.332 kWh/24hr for the Aquerra 10L model.
Warranty Information
Your USHA Aquerra 10 Litre Storage Water Heater comes with the following manufacturer's warranty:
- Tank: 8 years
- Heating Element: 3 years
- Product (overall): 2 years
Please retain your purchase receipt and warranty card for any warranty claims. The warranty covers manufacturing defects under normal use conditions. For detailed terms and conditions, refer to the warranty card included with your product.
Customer Support
For technical assistance, service requests, or any queries regarding your USHA Aquerra water heater, please contact USHA customer support:
- Toll-Free Number: 1800-1033-111
- Email: usha_care@usha.com
- Website: usha.com
When contacting support, please have your model number (4687AQ10AX526N) and purchase details ready.