Zelia ZLT 25 XS Salt Chlorinator for Pools up to 20 m³

CCEI has developed a unique electrolysis system that combines advanced water treatment technology with a visual display of water condition. The compact Zelia ZLT salt chlorinator is housed in a transparent cell whose color changes according to salt concentration and water temperature - a patented CCEI method.

Thanks to this solution, the user gets an immediate overview of the water treatment status:

• when the unit is idle, the color changes according to the water temperature
• during active chlorine production, the color changes according to the salinity of the water

This system allows for quick visual water quality control without the need for complex measurements.

The Zelia ZLT salt chlorinator ensures efficient and optimized chlorine production depending on the water temperature. Output is automatically reduced when the pool is covered with an automatic cover, and the unit offers up to 8 power levels for precise adjustment to current conditions. The compact and durable monoblock cell is equipped with titanium electrodes and, thanks to automatic polarity reversal cleaning, maintains a long service life and reliable operation. Safe operation is guaranteed by an integrated flow detector, which starts chlorine production only when water flows through the cell. The unit is easy to install - the fully assembled system is ready for use within minutes and connects via a practical connector. The Zelia ZLT model is also ideal for underground technical rooms and, in temperature control mode, automatically adjusts production cycles to the current water temperature, ensuring maximum efficiency and energy savings.

Principle of electrolysis

Salt (NaCl) dissolved in water is broken down by an electrolysis process into sodium (Na) and chlorine (Cl). The chlorine immediately dissolves in the water and forms hypochlorous acid (HClO), a powerful disinfectant that destroys bacteria and algae. After the reaction, it is converted back into salt again. From a safety standpoint, the electrolyzer is designed to produce chlorine only when the flow detector registers water flow through the cell. This means the electrolyzer produces chlorine only during filtration cycles set by the programmable timer in the pool control unit. The chlorine production time during these cycles consists of two intervals - normal and reverse - during which the polarity of the electrodes changes. This polarity reversal prevents limescale buildup on the electrodes and extends their service life.

Advantages:

• Easy installation thanks to the compact All-in-One system
• Temperature sensor and flow meter are already integrated in the cell - no additional components needed
• Control via buttons directly on the cell for convenient setup
• Automatic chlorine output regulation according to water temperature
• Reduced chlorine production when the pool surface is covered - energy savings and longer electrode life
• Can be connected to an ORP control system for precise disinfection control
• Water hardness setting, which the unit automatically adapts to
• Smart light indicators - color change according to water salinity or temperature
• Compatibility with technical chambers, suitable for both new and existing installations
• Optional connecting fittings for flexible hoses Ø32/38 mm (KT200015)

Package Contents

• 1 ZELIA power supply
• 1 ZLT cell (25)
• 1 set of two 1.5" unions for 1.5" pipes
• 1 bag containing:
  -1 clamp for the cell connector
  -4 screws and 4 wall plugs for mounting the power supply
  -2 gaskets for the unions

Zelia ZLT 25 - Control and Electrolysis Cell

Connection

The Zelia ZLT 25 is installed into 50 mm PVC piping using the supplied unions. It is recommended to place it in a bypass after the filtration system, which allows:

• control of the total flow rate
• easy removal without interrupting filtration

The cell can be installed both horizontally and vertically. The package includes connection fittings for gluing into PVC piping. For flow rates above 22 m³ / h, a bypass is essential to ensure optimal operation of the entire system.

Setup and Control

At the top of the cell there is a control panel with:

• a two-digit multifunction display (temperature, programming, parameters, etc.)
• three setting buttons
• three indicators

Color LED Indicators

Colored LEDs are built into the cell to signal the chlorine production status:

• Green: chlorine production is operating correctly
• Red: an error or system fault has occurred

Bypass Installation

1. Power transformer
2. Cell with control unit
3. From filtration
4. To pool

Technical Specifications

• Power supply dimensions: 180 x 130 x 66 mm
• Cell dimensions: 192 x 138 x 134 mm
• Power supply: 230 V ~ 50 / 60 Hz
• Power consumption: 40 W
• Maximum water volume treated: up to 25 m³
• Cell cleaning: automatic, by polarity reversal
• Recommended salt content: 1.5 - 4 g / l
• Maximum pressure (cell): 3 bar
• Maximum flow rate: 15 m³ / h
• Minimum flow rate: 3 m³ / h
• Protection rating:
  -power supply: IP 44
  -cell: IP 55
• Power supply installation: wall mounting (4 screws and wall plugs included)
• Cell installation: on 50 mm PVC piping (1.5″ unions included)
• Weight: 2.75 kg

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