Manuerop Compressors

[frank]

Hi Frank....just curious...what was the problem with the verical screw...we have cut a few open and flanged them...swapped bits and had some parts machined from new....mainly as an experiment and to "see inside"...we had to use massive flanges(made by Jerome) to satisfy insurance specs for pressure testing.

It appears that the slider valve has jammed in and the screw is seized. Apparently, they have now changed the design to prevent this happening. That's according to John at DB. The machine was purring nicely then just stopped dead at 6.23 one saturday morning. (according to the Trend printout). I don't think we'll play about opening the hermetic and then trying to re-flange it.

Once we remove the compressor I think there will be enough space to fit a Bitzer semi. The hard part is going to be getting the old one out and the new one in as it is on the forth floor and under partial cover.

Obviously, we will need to re-jig the pipework, fit an oil seperator etc. but this seems preferable to buying a replacement Hartford vertical screw . We've been quoted £6.5K for the Hartford alone. As you said, at least with the Bitzer you can open them up for repair.