ARC-55HD Salt & Mineral 55g Chlorinator 125,000L

The ARC 55HD Salt and Mineral Chlorinator is the most powerful model in the ARC Series, designed to handle large pools up to 125,000 litres. Whether you have a saltwater or mineral pool, this chlorinator ensures consistent chlorine production at an output of 55g per hour, keeping your pool water sanitised, clear and healthy with minimal effort.

Manufactured by CAS Crystal Aquatic Systems, the ARC 55HD is engineered for performance and reliability. It features a smart self cleaning cell that prevents calcium buildup, reducing the need for manual cleaning and extending the life of the premium quick connect titanium cell. The power saving technology regulates chlorine output, minimising energy consumption while maintaining optimal sanitisation.

This model is built to last, with an IP34 rated weather resistant design, ensuring it can withstand harsh Australian conditions. It also features built in indicators for salt levels and water flow, allowing you to easily monitor system performance.

As part of the ARC Series, which includes models ARC 15, ARC 25, ARC 35, and ARC 45, the ARC 55HD is the largest and most heavy duty model, making it ideal for large residential pools, commercial pools and aquatic centres. Backed by a three year warranty for domestic installations, this chlorinator is a reliable, efficient  and low maintenance solution for keeping your pool in top condition.

Key Features of the ARC-55HD

• High-Capacity Chlorine Production – Produces 55g of chlorine per hour, ideal for pools up to 125,000 litres
• Compatible with Salt and Mineral Pools – Provides flexible sanitisation options
• Heavy Duty Performance – Designed for large residential and commercial pools
• Smart Self Cleaning Cell – Reduces calcium buildup for easier maintenance and longer cell life
• Premium Quick Connect Titanium Cell – Ensures durability and consistent chlorine production
• Energy Efficient Power Saving Technology – Optimises chlorine output while reducing energy use
• Built in Salt and Water Flow Indicators – Monitors system performance for easy adjustments
• Weather Resistant Power Pack – IP34 rated for outdoor durability
• Compact and Modern Design – Easy installation and long-term reliability
• Available with or without a Timer – Choose the best model for your pool setup
• Three Year Warranty for Domestic Use – Ensures long term protection and peace of mind 1 year commercial

Specifications for the Crystal Aquatic Systems  ARC-55HD

• Pool Capacity: Up to 125,000 litres
• Chlorine Output: 55g per hour
• Salt Levels: 3000 to 4000ppm
• Operating Voltage: 220 to 240V AC
• Cell Material: Premium quick connect titanium cell
• Power Consumption: Energy optimised for efficiency
• Dimensions: Approximately 36L x 33W x 18H
• Weight: 7.5 kg (approximate)
• Timer: With battery backup
• Ingress Protection: IP34 rated for outdoor durability
• Warranty: Three years for domestic use, one year for commercial installations

Installation Guide for the ARC-55HD

• Verify pool salt levels – Adjust to the recommended 3000 to 4000ppm before installation
• Mount the power pack – Install in a well ventilated outdoor area, at least one metre above ground
• Secure the unit – Use the provided mounting bracket and green wall plugs
• Connect the cell electrode – Install in the return line using the supplied PVC reducing bushes
• Lubricate the O-ring – Apply silicone grease to ensure a secure seal
• Connect to power – Plug into a weatherproof RCD protected 10A outlet
• Attach the pool pump (if applicable) – For timer models, plug the pump into the AC socket
• Set the timer (if applicable) – Configure timer cycles for automatic operation
• Test and adjust chlorine output – Ensure water flow and salt levels are within the recommended range

What’s in the box

• ARC 55HD Salt and Mineral Chlorinator unit
• Power pack with monitoring and control system
• Quick connect titanium cell with electrode housing
• Cell cable with moulded gold plated connectors
• Mounting bracket with green wall plugs and screws
• PVC reducing bushes for easy installation
• Installation manual and warranty card