One of the most complex tasks that a modern mechanic will have to approach in day to day work is the servicing of automotive air conditioning systems, and thanks to the number of environmental regulations that are involved in this process, it is absolutely essential to have the proper equipment on hand to ensure that you are able to comply with the law while still performing the task at hand to the highest standard.  There are a number of different machines available on the market at the present time that can be used to carry out the full process of recharging a vehicle AC system from start to finish, but one of the most effective is undoubtedly the Robinair 34134z Cool Tech AC Machine, which is able to be used to recover, recycle, and recharge air conditioner refrigerant quickly and accurately.
Because of the potential damage to the environment that can be caused by the improper release of R-134a refrigerant into the atmosphere, it is absolutely essential that any servicing of an automotive air conditioning system is carried out using a highly efficient system such as the Robinair 34134z.  The Robinair 34134z is able to carry out the full recovery process in removing the refrigerant and then subsequently being able to remove any contaminants from it as part of the recycling process, before pumping it back into the AC system ready for re use.
From an operational point of view, the Robinair 34134z is a fantastic piece of equipment.  It is designed to streamline the whole AC recharging process, and incorporates a fair amount of automation.  This ensures that many of the complex range of tasks that must be carried out when refilling a vehicle air conditioner can be carried out at the push of a single button. 
Once the Robinair 34134z has been connected to the air conditioning system of a vehicle, it begins the process by pumping out the refrigerant from the system using a high vacuum that allows it to be removed into a tank.
The vacuum created by the Robinair 34134Z Recovery Machine is robust enough to be used for recharging the R-134a refrigerant so that it is ready for reuse.  Over time, no matter how efficient an AC system is, it will eventually become contaminated with oils and water to form sludge within the pipes of the system.  This impairs the performance of the system and causes it to use more power.  The Robinair 34134z is able to use a vacuum to purify and recycle the refrigerant so that it is free of contaminants and ready to be fed back into the automotive AC system, which will then return to optimal levels of efficiency.
By automating many of the processes, and continually monitoring the volume of refrigerant that is being processed, the Robinair 34134z AC Recovery machine is able to provide results that are consistent and also very positive.  The control offered by the system, coupled with the speed with which it operates allows the operator the ability to carry out the full recovery and recharging