ccei Limpido Z2 25 - User Manual

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Overview

Technical Specifications
Delivered Accessories
Usage Features
Maintenance Features

The Limpido Z2 is an automatic treatment system for pool water that utilizes salt electrolysis. It separates salt (NaCl) into Sodium (Na) and Chlorine (Cl), with the latter forming hypochlorous acid (HClO), a potent disinfectant that eliminates bacteria and algae before reverting to salt. The system adjusts chlorine production based on water temperature and pH (alkalinity). For safety, the electrolyzer only produces chlorine when a flow detector confirms water circulation in the cell.

Technical Specifications

The Limpido Z2 is available in three models: 25, 50, and 75, corresponding to different pool volumes and chlorine production rates.

Sizes (lxhxp): 300x150x90 mm
Weight: 6kg
Supply: 230V/50Hz
Consumed Power: 100W max
Protection rating: IP-65
Insulation: Classe II
Max production:
- Limpido Z2 25: 4g/h (for 10 to 25m³ pool volume)
- Limpido Z2 50: 8g/h (for 20 to 50m³ pool volume)
- Limpido Z2 75: 12g/h (for 30 to 75m³ pool volume)
Salt rate: 2.5 to 5 g/l
Max pressure: 3 bars
Max rate: 22 m³/h
Polarity inversion: The system features polarity inversion to prevent electrode scaling.

Delivered Accessories

Each Limpido Z2 unit comes with:

1 Limpido Z2® box
1 Electrolysis cell with Ø50 connections
1 pH7 calibration solution
1 pH9 calibration solution
1 pH probe
2 screws + 2 dowels (for wall mounting)
1 cable with a 2-point connector for optional "cover contact" connection
2 Ø50/1/2" clamp saddles
1 probe holder
1 Injector
1 suction strainer
4m of crystal tube for injection
1 technical manual
1 clip for cell connector
1 spare kit (wheels + tube) for the pH pump

Usage Features

The Limpido Z2 offers various operating modes and settings:

Chlorine Production Modes:
- Shock or Permanent Mode: Produces chlorine continuously as long as filtration is operational.
- Automatic or Thermo Regulated Mode: Limits production based on water temperature measured in the cell.
- Programmed Mode: Produces chlorine according to a user-selected number of hours.
- ON: Produces permanently without regulation, useful if the ORP probe fails.
- OFF: Stops all chlorine production, suitable for wintering.
Production Cycles: The system uses two-period cycles (Normal and Reversal) with alternating electrode polarity to prevent scaling. A cycle consists of four phases: normal production, rest, reverse production, and rest. The cycle time is adjustable based on water hardness.
pH Regulation: The device includes a pH regulator to maintain the pool water pH between 7.0 and 7.6 for swimmer comfort and treatment efficiency.
- pH Dosing Modes: pH- (to decrease pH), pH+ (to increase pH), ON (continuous injection), OFF (no injection, e.g., for wintering).
- pH Set Point: Adjustable from the menu.
- Maximum Daily Injection Volume: User-adjustable to prevent overdose.
Salt Level Control: The Limpido Z2 operates with a salinity rate between 1.5g/l and 3.5g/l at 25°C. It indicates "excessive production" for high salt or "under production" for low salt. Water conductivity is proportional to salinity and temperature (approx. 2.2% per degree Celsius).
Pool Cover Integration: When a pool cover is connected, the system reduces chlorine production (e.g., from 8h to 2h daily in Automatic mode) to account for reduced UV exposure and usage.
Display and Menu Navigation: A light switch powers the appliance. A scrolling menu allows checking parameters and configuring settings for "Settings," "PH," and "ELECTROLYSIS."
- Main Display: Shows status (screen saver), selected salt electrolysis mode, cell temperature, measured pH value, and indicates filtration status.
- Error Messages: The cell emits flashes corresponding to specific problems (e.g., Orange for communication issues, Light blue for overheating, Violet for temperature sensor error, Red for low salt/current, Blue for high salt/current).
- Status Indications: Displays messages like "Filt. Stop," "Temp.↓," "pH/24>>" (max product volume exceeded), "Tank empty," "T° Err," "Salt ↑," "Salt↓," "No Cell," and "pH > <" (abnormal pH).
- pH Regulation Status: Shows pH dosing mode, measured pH, set pH, and injected liquid volume over 24h.
- Electrolysis Status: Displays functioning mode (ON/OFF/PRG/THR), actual production period, and expected daily duration.
- Supervisor Mode: Provides access to advanced menus, including conductivity, salt level, total injected pH liquid volume, and total chlorine production duration.
Language Settings: Supports 8 languages: French, English, German, Spanish, Italian, Portuguese, Dutch, or Czech.
Reset Function: Allows resetting counters and settings, including the hour counter, total injected liquid, and previous calibrations.
Production Level: Adjustable from 20% to 100%, with a nominal value of 80%. Higher levels increase chlorine production but reduce cell lifetime.
Minimum Temperature: Configurable minimum temperature (0-18°C) below which chlorine production will not occur.
Water Hardness: Allows entering water hardness (TAS/TH in French degrees °F) to adjust polarity inversion and optimize cell lifetime.

Maintenance Features

Over Winter: During winter, treatment can be maintained by reducing frequency (e.g., 8-hour filtration every fortnight). Salt rate must be monitored, and increased to 5g/l for cold water (<18°C).
Salt Addition: Add salt when the level drops below 2.5 g/l. Specially treated salt with stabilizing agents is recommended. At the start of a season, adjust the salt rate to 4g/l. A table is provided to calculate the amount of salt needed based on pool volume and current salt rate.
Cell Cleaning: If production remains low despite correct salt levels, check the cell for scale. Clean by blocking one end and pouring in diluted acid (10% HCl recommended) for a few hours.
Probe Maintenance:
- Film Formation: A film forms on the glass bulb of the pH probe, affecting response time, slope degradation, and point 0 drift. Regular calibration compensates for point 0 drift.
- Sensor Protection: Never store sensors in distilled water. For long-term storage, dry storage is recommended. For short-term storage, use KCI 3M solution or tap water.
- Probe Regeneration: Sensor life can be extended by soaking in a solution of diluted hydrochloric acid (0.1M HCl). Regeneration is possible when the slope is too weak, response time is too long, or point 0 has shifted.
Calibration: Mandatory for pH probes during installation, after replacement, after cleaning, after long-term storage, or when measurements are inaccurate. Calibration is performed using pH7 and pH9 solutions. The device guides the user through the process, indicating when to plunge the probe and when to press the button. Error messages (Err.!) indicate issues with calibration.