FAQ: HVAC Fittings, Valves & Service Tools (C&D Brand)

1. What type of systems are these C&D fittings and valve tools designed for?

These fittings and tools are intended for refrigeration and air conditioning systems that use standard service ports and Schrader-type access valves — including splits, VRF/VRV systems, refrigerated cabinets and small commercial plant. Always confirm pressure rating and refrigerant compatibility in the individual product specs before use, especially with A2L and A3 refrigerants.

2. Do I need a Refrigerant Handling Licence to use these products?

If there’s any risk of releasing fluorocarbon refrigerant while you work — for example when opening a service valve, changing a core or installing an access fitting — the work must be performed by a person with an ARCtick Refrigerant Handling Licence. Homeowners can purchase fittings and tools, but refrigerant work should be left to licensed technicians for legal, environmental and safety reasons.

3. What’s the difference between an access fitting, a core depressor and a service valve tool?

An access fitting or copper tube access valve is a small fitting brazed or clamped into the line to add a service point. A core depressor is a hose-end fitting that pushes down on the Schrader core so refrigerant can flow through your hoses or manifold. Service valve tools, including torque drivers and core removers, are specialised tools that remove, replace or correctly torque the valve cores and caps.

4. How do I minimise refrigerant leaks when working on valve cores and caps?

Use purpose-designed torque drivers set to manufacturer specifications, remove cores before brazing where required, replace worn caps and O-rings with quality parts, and perform leak checks after service using approved methods. Following Australian Refrigerant Handling Codes of Practice and ARCtick guidance is essential.

5. Are these C&D fittings suitable for R32 and other A2L refrigerants?

Many modern fittings and caps are suitable for A2L refrigerants such as R32, but you should always verify this in the specific product documentation and follow any additional safety and ventilation requirements for flammable refrigerants. When in doubt, consult the manufacturer and current Australian refrigerant handling codes.