Recovery and vacuum equipment

[Larry2]

Is a vacuum pump suited to recovery of refrigerant by connecting the reclaim cylinder to the outlet? Is it capable of producing outlet pressures required to return refrigerant to a cylinder?

Is a recovery system suited to drawing a vacuum on a system before comissioning?

I've looked at manuals for a number of recovery systems and mostly they don't specify to what depth of vacuum they pump down.

[NoNickName]

1) no, you can't bleed a pressurised system into a vacuum pump. It will damage.
2) no, the pressure of a vacuum pump is just few hPa, an most of them do not have an appropriate connection for a pipe on the outlet.
3) no, recovery system do no evacuate. Most of them are condensing units, and they are operated at best when pumping liquid in push pull.

[Larry2]

Thanks, that's what I thought. I guess both pieces of gear are needed.