Prevent 1 Purge

[cw0682]

I have a pressure regualtor I am replacing on a Carrier Prevent 1 condensor chamber, Using R 123 and the new one looks extremely different from the old one, doesn't look right. I have pictures of the new one but not the old one if anyone needs to see it.

The old valve looked more like a HGBV valve with a stem on it and it was adjustable, this one sounds like its permanetly set at 35 PSI. Any input would be appreciated, but I feel a phone call to carrier coming on.

[pacsbhicks]

why don't you just go to a supply house like United Refrigeration and buy the one like you have. It is a pretty common item.

[absrbrtek]

You should just throw that prevent purge out. Has to be the worst purge made. You'll put the regulater in then the tank will leak. Real POS IMO.

[cw0682]

Tell Dupont

[poppop]

You can get a new adjustable valve from Trane. It's the one they used on their old belt driven purges. It's made by Cash Acme. You can purchase a rebuild kit for the old one you have from Carrier RCD. You can install a Prevent II upgrade kit which will replace the relief valve with a pressure switch and solenoid valve. (Also available from Carrier RCD).

[chillerguru]

i usually yank out the prevents, the are worthless. Ive installed Trane purifier purges in their place even on contract chiller, it save a lot of head aches in the long run . if u come across trane chille demolitions , save the purges the will help in the long run. Have a dozen of 19dk under contract replaced every purge w/ a purifier

[referteacher]

POPPOP, The pressure switch and solenoid has since been replaced by yet another pressure relief valve at least a year ago. For all I know, it may have been replace by something else again.:rolleyes:

[Healey Nut]

Scrap the piece of S*&$ and put a purifier purge on it the only purge I can think of worse than Prevent would be the old Trane oiless or the Quad purge.

[poppop]

To each, their own. I have four Prevents under contract, one on a circa 1965 19D. They provide me with minimal problems because I take care of the maintenace on these machines. Their one true asset is the ability to remove air quickly from a non running chiller. But I do not fit the definition of an expert......... someone from out of town.

[Healey Nut]

That may be true but how much refrigerant are they guzzling and releasing in the process. The EPA must love you.

[cw0682]

The big reason I am not able to get them replaced, is because they are in a plant and on process cooling, and I can't get management to justify a Design change order to let us put an after market purge on it, although whoever stated the Carbon tank would leak was right as it is leaking.... :D :D Oh well, who am I to tell college educated engineers that they need to lift a pen to write a piece of paper so they don't have to keep paying us so much....

Pay me now or Pay me later.

[poppop]

That may be true but how much refrigerant are they guzzling and releasing in the process. The EPA must love you.

Not much I guess, I haven't added any new refrigerant in years.