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Fernox Product Catalogue |
CC1 Combi Air & Dirt Separator Instructions Leaflet |
Separator Quick Start Guide |
The Fernox CC1 Combi Air & Dirt Separator is designed for sealed commercial heating and chilled water systems, including applications in schools, hospitals, offices, plant rooms and other commercial buildings. Installed in-line on the flow or return pipework, it helps remove circulating air and contaminants while protecting key components including pumps, boilers and heat exchangers.
Compatible with water and inhibited glycol solutions up to 50%, the CC1 is suitable for systems using chemical inhibitors such as Fernox Protector F9.
Location (Heating systems): On the flow line, preferably after the boiler
Location (Cooling systems): On the return line, close to the chiller
The system operates independently of flow direction. The automatic air vent must remain accessible for operation and servicing. The drain valve allows discharge of collected debris without requiring a system shutdown.
High-efficiency separation – The CC1 uses hydrocyclonic action to promote the separation of suspended contaminants from the circulating fluid. The internal design also encourages air and microbubbles to separate from the fluid and collect at the top of the unit, where they are automatically discharged through the integrated air vent.
Optimised flow design – The CC1 features an optimised internal flow path designed to provide effective air and dirt separation while maintaining a low pressure drop through the unit. This helps maintain efficient system circulation without unnecessarily restricting flow.
Robust construction – Constructed from carbon steel with a corrosion-resistant internal coating, the CC1 is designed for long-term use in commercial heating and cooling systems. Its flanged connections and vertical body support straightforward installation and access for servicing.
Easy maintenance – The integrated drain valve allows collected debris to be discharged quickly without requiring system shutdown, helping minimise maintenance time and disruption.
Body Material: Carbon steel
Internal Coating: Corrosion-resistant
Air Vent: Automatic, top-mounted (1/2″ BSP)
Drain Valve: Brass
Connections: Flanged (DN50-DN150), EN 1092-1 / PN16
Installation Orientation: Horizontal pipework
Each unit is hydrostatically tested at >15 bar and shipped pre-assembled. The air vent and drain valve are factory-fitted. The unit must be installed indoors, in a frost-free, ventilated area. System must be depressurised and cooled prior to servicing. Regular drain cycles are recommended every 6 months under normal dirt load.
Maximum Operating Pressure: 10 bar
Test Pressure: >15 bar
Operating Temperature Range: 0 – 110°C
Installation Orientation: Horizontal pipework
Connection Type: Flanged (DN50 to DN150)
Suitable Fluids:
Water
Glycol-water mixtures (up to 50%)
Operating Principle
As water flows through the Combi unit, microbubbles coalesce and rise to the top of the chamber, where they are automatically expelled via the integrated automatic air vent.
At the same time, suspended particulate debris is separated from the system water through hydrocyclonic action. Centrifugal forces cause heavier contaminants to migrate towards the outer wall of the chamber and settle at the bottom, where they can be discharged via the integrated drain valve.
This process enables continuous air and dirt removal without interrupting system operation.