1. Introduction
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of your Cata CTRS-100 REV SLIM Electric Water Heater. Please read this manual thoroughly before installation and use, and keep it for future reference.
2. Safety Information
Important Safety Instructions:
- Ensure the water heater is installed by a qualified professional in accordance with local regulations.
- Do not operate the water heater if it is damaged or malfunctioning.
- Always disconnect power before performing any maintenance or repairs.
- Keep flammable materials away from the water heater.
- This appliance is equipped with anti-freeze protection; however, ensure proper insulation in cold environments.
- Do not block the pressure relief valve.
- Regularly check for leaks and corrosion.
3. Product Features
The Cata CTRS-100 REV SLIM Electric Water Heater is designed for efficiency and convenience. Key features include:
- Efficient Double Tank System: Allows for faster hot water availability.
- High Power Output: Maximum 2000W for quick heating.
- Digital Display: For easy temperature adjustment and monitoring.
- Slow Flow Cold Water Inlet: Designed to distribute cold water laterally, preventing temperature drops inside the tank and reducing unnecessary energy consumption.
- Flexible Installation: Can be installed both vertically and horizontally without compromising efficiency.
- Submerged Heating Elements: Ensures efficient heat transfer.
- Anti-freeze Protection: Helps prevent damage in cold conditions.
- Rust-proof Construction: Enhances durability and lifespan.

Figure 3.1: Front view of the Cata CTRS-100 REV SLIM Electric Water Heater, showing the digital display and control knob.

Figure 3.2: Technical diagram illustrating the dimensions and mounting points of the Cata CTRS-100 REV SLIM Electric Water Heater. All measurements are in millimeters.
4. Setup and Installation
The Cata CTRS-100 REV SLIM water heater offers versatile installation options.
- Mounting: This unit is designed for wall mounting. Ensure the wall structure can support the weight of the water heater when full (approximately 92 liters of water + 29 kg unit weight).
- Orientation: The water heater can be installed either vertically or horizontally. Ensure all connections are made correctly for the chosen orientation.
- Water Connections: Connect the cold water inlet and hot water outlet pipes according to standard plumbing practices. The Slow Flow diffuser is integrated into the cold water inlet.
- Electrical Connection: Connect the unit to a dedicated 240 Volt power supply. A qualified electrician should perform this step.
- Pressure Relief Valve: Install the pressure relief valve as per local codes. Do not obstruct its discharge.
5. Operating Instructions
Operating your Cata CTRS-100 REV SLIM water heater is straightforward with its digital display.
- Power On/Off: Use the main power switch located on the unit to turn it on or off.
- Temperature Adjustment: Use the control knob or buttons on the digital display to set your desired water temperature, up to a maximum of 75 degrees Celsius.
- Power Adjustment: The unit allows for adjustment of extraction power (2000W maximum) to suit your needs, contributing to energy efficiency. Refer to the digital display for current settings.
- Monitoring: The digital display shows the current water temperature and operational status.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your water heater.
- Annual Inspection: It is recommended to have a qualified technician inspect the unit annually.
- Pressure Relief Valve Test: Test the pressure relief valve at least once a year to ensure it is not blocked and functions correctly.
- Drainage: Periodically drain the tank to remove sediment buildup, which can affect efficiency.
- Cleaning: Clean the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners.
- Anti-freeze Protection: While the unit has built-in anti-freeze protection, ensure the installation area does not expose the unit to extreme freezing temperatures for prolonged periods.
- Rust Prevention: The unit is rust-proof, but promptly address any external damage to the casing to maintain this protection.
7. Troubleshooting
If you encounter issues with your water heater, refer to the following common problems and solutions. For complex issues, contact a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water | No power, thermostat setting too low, heating element failure. | Check power supply, increase temperature setting, contact service. |
| Water not hot enough | Thermostat setting too low, excessive hot water usage, sediment buildup. | Increase temperature, reduce usage, drain tank. |
| Leaking from unit | Loose connections, faulty pressure relief valve, tank corrosion. | Tighten connections, inspect/replace valve, contact service for tank issues. |
| Unusual noises | Sediment buildup, heating element issues. | Drain tank, contact service. |
8. Specifications
| Brand | Cata |
| Model Number | CTRS-100 REV SLIM (03114001) |
| Product Dimensions | 32.4 x 32.4 x 94.5 cm (12.76 x 12.76 x 37.2 inches) |
| Product Weight | 29 kg (63.9 lbs) |
| Capacity | 92 Liters |
| Color | White |
| Style | Modern |
| Voltage | 240 Volts |
| Electrical Power | 2000 Watts |
| Maximum Temperature | 75 Degrees Celsius |
| Heat Output | 2000 Watts |
| Efficiency Rating | B (European Energy Efficiency Class: A+ to F) |
| Mounting Type | Wall |
| Special Features | Anti-freeze protection, Rust-proof |
| Included Components | Electric water heater unit |
9. Warranty and Support
For detailed warranty information, please refer to the warranty card included with your product or visit the official Cata website.
For technical support, spare parts, or service inquiries, please contact Cata customer service or an authorized service center.
You can find more information about Cata products and support on their official store page: Cata Official Store



