A guide to R410A Mitsubishi Electric（指导R410A三菱电机）.pdf

A guide to R410A The Natural Choice Contents 2 The facts on R410A refrigerant 4 A brief history of refrigerant 6 R410A in detail 8 Ensure correct system evacuation 11 When using copper pipework 12 The right tools 15 Summary The facts on R410A refrigerant With more manufacturers introducing systems that use R410A refrigerant, we’ve produced this booklet to explain the hype that currently surrounds R410A and to present you with the facts. Handled correctly, many installers have already realised that R410A refrigerant has some excellent benefits to offer. However, it’s being portrayed within the industry as potentially dangerous to use or, it’s being labelled as the only efficient refrigerant that’s available - which simply isn’t true. Whilst R410A can provide some small advantages in efficiency, it is technology itself that is the largest contributor towards the steady increase in ever important COP’s. A good comparison can be made with cars and fuel for example: The fact that a car can provide more miles per gallon today than say, fives years ago, is due to technological advances in the car rather than the fuel. The same is true of direct expansion systems, with the need to focus on efficiency as a whole, not simply the type of refrigerant. How the refrigerant is used is of paramount importance and good system installation is crucial. The skills required toda