1. Introduction
Welcome to the user manual for your new Racold CDR DLX Plus RHS 15L Horizontal Storage Water Heater. This appliance is designed to provide efficient and reliable hot water for your home. Please read this manual thoroughly before installation and operation to ensure safe and optimal performance. Keep this manual for future reference.

Image 1.1: Front view of the Racold CDR DLX Plus RHS 15L Horizontal Storage Water Heater.
2. Safety Information
Your safety and the safety of others are paramount. Please observe all safety precautions outlined in this manual.
- Professional Installation: Installation must be performed by a qualified technician in accordance with local regulations and this manual. Improper installation can lead to electric shock, fire, or water leakage.
- Electrical Safety: Ensure the power supply matches the specifications of the water heater. Do not use extension cords. Always disconnect power before any maintenance or repair.
- Water Pressure: The water heater is designed for high pressure resistance up to 8 bars. Ensure your home's water pressure is within acceptable limits.
- Temperature Settings: Be cautious when setting high temperatures to avoid scalding.
- Children and Vulnerable Persons: This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities unless supervised or instructed.
- Safety Plus: The water heater is equipped with 3 layers of safety, including a thermostat, cutout, and safety valve, to ensure safe operation.

Image 2.1: Illustration of enhanced protection features, including the magnesium anode for longer product lifespan and rust-proof body.
3. Product Features
The Racold CDR DLX Plus RHS 15L water heater incorporates advanced technologies for durability, efficiency, and user convenience.
3.1. Titanium Plus Technology
This water heater features a specially designed titanium steel tank with a titanium enamel coating. This technology provides superior durability and resistance to pressure and water impurities, ensuring a longer product life.
Image 3.1: Visual representation of Titanium Plus technology, indicating its resilience in tough water conditions.
3.2. Smart Guard (Magnesium Anode)
The Smart Guard feature includes a special anode that performs an electrolytic process. This process actively protects the heating element from corrosion, significantly extending its operational life.
3.3. Rust Proof Outer Body
The outer body of the CDR DLX Plus water heater is specifically designed to be rust-free, contributing to the product's longevity and maintaining its aesthetic appeal.
3.4. High Pressure Resistance
With a high pressure withstanding capacity of up to 8 bars, this water heater is suitable for use in high-rise buildings and applications involving high-pressure pumps.
Image 3.2: Depiction of the water heater's high-pressure resistance, suitable for multi-story buildings.
3.5. Energy Efficient Design
The water heater boasts a 4-star BEE rating, indicating high energy efficiency. It utilizes High Density PUF (Polyurethane Foam) insulation to retain hot water for longer durations, thereby saving energy.
Image 3.3: Cross-section illustrating High Density PUF insulation for extended hot water retention.
3.6. Temperature Display & Knob
For user convenience, the water heater includes a temperature display and an adjustable knob, allowing precise control over the water temperature.
Image 3.4: Close-up of the temperature display and control knob for easy adjustment.
3.7. Loft Friendly Design
The horizontal design of this water heater makes it ideal for installation in compact spaces, including under false ceilings, optimizing space utilization in urban bathrooms.
Image 3.5: Illustration demonstrating the space-saving, loft-friendly design of the water heater.
4. Installation Guide
For safety and optimal performance, the installation of your Racold water heater must be carried out by a certified professional technician.
4.1. Included Components
The product package includes:
- 1 x Water Heater Unit
- 1 x Instruction Booklet
- 1 x Safety Valve
- 2 x Dielectric Joints
Inlet and outlet pipes are not included in the product box but will be provided by the Racold technician at the time of installation at no additional cost (subject to regional availability for free installation services).
4.2. Site Selection
- Choose a location that is easily accessible for maintenance and away from direct sunlight or freezing temperatures.
- Ensure the wall or ceiling structure can support the full weight of the water heater when filled with water.
- Maintain adequate clearance around the unit for proper ventilation and servicing.
Image 4.1: Rear view of the water heater, highlighting mounting points for secure installation.
4.3. Plumbing Connections
- Connect the cold water inlet to the designated port (usually blue).
- Connect the hot water outlet to the designated port (usually red).
- Install the safety valve on the cold water inlet line as per instructions.
- Ensure all connections are watertight and use the provided dielectric joints to prevent galvanic corrosion.
Image 4.2: Side view of the water heater, illustrating the cold water inlet and hot water outlet connections.
4.4. Electrical Connections
- Ensure the electrical circuit is properly grounded and has appropriate circuit breakers.
- Connect the water heater to a dedicated power outlet.
- Verify that the voltage and frequency match the appliance's requirements.
5. Operating Instructions
Operating your Racold water heater is straightforward. Follow these steps for safe and efficient use.
5.1. Initial Startup
- Ensure the water heater is completely filled with water before switching on the power. Open a hot water tap in your home until water flows freely, indicating the tank is full.
- Switch on the main power supply to the water heater.
5.2. Temperature Adjustment
- Use the temperature control knob located on the front panel to set your desired water temperature.
- Monitor the digital display to see the current water temperature.
- Allow sufficient time for the water to heat up to the set temperature. The heating indicator light will typically turn off once the desired temperature is reached.
5.3. Shutting Down
To turn off the water heater, simply switch off the main power supply. For extended periods of non-use, it is recommended to also turn off the water supply to the unit.
6. Maintenance
Regular maintenance ensures the longevity and efficient operation of your water heater.
6.1. General Cleaning
- Clean the exterior of the water heater with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure the area around the water heater is kept clear of obstructions.
6.2. Safety Valve Check
Periodically check the pressure relief valve (safety valve) to ensure it is not blocked and is functioning correctly. Consult a technician for this procedure.
6.3. Anode Rod Inspection
The magnesium anode rod (Smart Guard) should be inspected and replaced periodically by a qualified technician, typically every 1-2 years, depending on water quality. This helps prevent corrosion of the tank.
6.4. Descaling
In areas with hard water, mineral deposits can accumulate inside the tank and on the heating element. Descaling should be performed by a professional technician as needed to maintain efficiency.
7. Troubleshooting
If you encounter issues with your water heater, refer to the following common problems and solutions. For complex issues, contact Racold Customer Care.
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water | No power supply; Thermostat tripped; Heating element failure | Check power switch/breaker; Reset thermostat (if accessible); Contact service technician |
| Water not hot enough | Temperature setting too low; Insufficient heating time; Sediment buildup | Adjust temperature knob higher; Allow more time for heating; Contact service for descaling |
| Water leaking | Loose connections; Faulty safety valve; Tank corrosion | Tighten connections; Replace safety valve; Contact service technician immediately |
| Unusual noise | Sediment buildup; Loose components | Contact service for descaling; Contact service technician |
8. Technical Specifications
Key technical details for the Racold CDR DLX Plus RHS 15L Horizontal Storage Water Heater:
| Feature | Specification |
|---|---|
| Brand | Racold |
| Model Number | 3803296 |
| Capacity | 15 Litres |
| Mount Type | Horizontal (Wall Mount) |
| Wattage | 2000 Watts (2 KW) |
| BEE Star Rating | 4 Star |
| Maximum Operating Pressure | 8 Bars |
| Maximum Temperature | 67 Degrees Celsius |
| Product Dimensions (W x H) | 32W x 33H Centimeters (Note: Full dimensions are L: 57cm, H: 32cm, D: 33cm) |
| Item Weight | 9 kg 260 g |
| Colour | White |
| Special Feature | Rustproof |
Image 8.1: Detailed dimensions of the Racold CDR DLX Plus RHS 15L water heater.
9. Warranty and Support
Racold is committed to providing quality products and excellent customer service.
9.1. Warranty Details
- Product Warranty: 2 years
- Heating Element Warranty: 3 years
- Tank Warranty: 7 years
Please retain your purchase invoice for warranty claims.
9.2. Free Installation & Pipes
Free installation and pipes are provided by a Racold technician at the time of installation. Please note that free installation and pipes are not available in the following states: Sikkim, Odisha, Uttarakhand, Himachal Pradesh, Uttar Pradesh, Bihar, Jharkhand, Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, and Tripura.
9.3. Customer Support
For any queries, assistance, or service requests, please contact Racold Customer Care:
- WhatsApp Support (24x7): 0736 288 8999
- Contact Support (9 am to 9 pm): 020 6734 2288 | 0860 025 6000


