Hi

I work for a small company that has some scrap chillers from vending machines that need refrigerant recovery. I passed F Gas a year ago and have since set up all required permits etc for me and for the company and now need to start recovering.

I have (I think) everything I need, a recovery unit, manifold and gauges, hoses, recovery cylinder and charging scales.

The chillers are small self contained units with around 3 or 4 oz (85 to 113g) of R134a per unit. No service ports but that's not a problem as once empty they will be scrapped, so I am using pliers that pierce the copper pipe.

I would like to chat with an experienced engineer just to guide me, as after the first unit I did today which I thought was empty but when I dumped it on the scrap pile it fell on its side and refrigerant came out! Clearly not empty. I don't need a training course just some wise words from an 'old hand'.

Thanks

Dave