19EF convert to 134a and replace the control to PIC II w/ ICVC

[can]

I'll have a job on April for Carrier 19EF. Will convert the refrigerant from R-12 to 134a and replace the control system to PIC II w/ICVC module. I want to know is it the first chiller make these two works at same time?

[absrbrtek]

Is this a Carrier reselection or just changing refrigerants?
I'll have a job on April for Carrier 19EF. Will convert the refrigerant from R-12 to 134a and replace the control system to PIC II w/ICVC module. I want to know is it the first chiller make these two works at same time?

[techtalker]

Yes, there have been 19EF machines upgraded to PIC II controls before. As Absorbertek says, I hope that you have had Carrier parts (RCD) perform the reselection for you, or it has already been done.

The upgrade on the controls is possible. You need to modify the starter with the ISM, and you will need to think about the motor temp and compressor thrust bearing temp circuits.

Good luck.

[can]

Dear Techtalker,

Thank you very much for your reply! We will get all the parts from RCD. And will replace all the seals, bearings, inpellers and gears reslected by RCD. But will not replace the tubes. I will recommand the customer to replace their starter to use the Toshiba VFD to save their operation cost at part load!

Reagrds!

[can]

Finally, We are completed the retrofit work. All the inside parts need to replace. Only the hi-speed shaft and the motor never replace. But Carrier can not supply the hi-speed bearing for the 50Hz pinson gear. They are only give us a drawing, we are need tailor make this parts. After re-start the chiller. The oil temp. is too high, we are replaced a bigger oil cooler. The problem was fixed. The chiller running very well on this half year and up to now! So, we are tailor make the bearings for 19XL and XR now. The pricing is very good. I have posted these news too. But someone only feel the OEM bearings can use. The bearings made by us can save your cost, yours can make more mark up for the parts and get more income. I feel this is a very good way for yours business.

[mustardman]

Can another thing to consider nowadays is most buildings have insurance to cover major failures on their chillers. These insurance companies are always looking for a way to not pay out on a claim. Using non OEM bearings would most certainly result in a rejected claim. So I am sorry to say you are probably not going to convince anyone to buy your bearings it is not worth the risk in my opinion.

[can]

If the problem is come from the insurance. I accept everyone will use the OEM bearings if they buy the insurance for the job. But they can not say my posts or our product is a crap!

[r404a]

nice job Can

r404a

[freonrick]

I dont think most people think the bearings are crap. We have no way of knowing anything about your bearings. I would not buy non oem bearings no matter who made them. I have used non oem bearings on recips and had no problems. If I use non oem in a centrifugal then I have to be responsible for it. If the customer told me to use them then I would after they signed for them.

[can]

I dont think most people think the bearings are crap. We have no way of knowing anything about your bearings. I would not buy non oem bearings no matter who made them. I have used non oem bearings on recips and had no problems. If I use non oem in a centrifugal then I have to be responsible for it. If the customer told me to use them then I would after they signed for them.


Thank you very much!!!!! You are the true!!!!!!!!!!!!!!!!!!

[LGtonnagetech]

Can, Your pictures look like you got a professional conversion, but I'm curious why refrigerant conversion was selected over replacement. Was replacement an option considered? In this country the cost differential between conversion and replacement is very minor in many cases.

[can]

Can, Your pictures look like you got a professional conversion, but I'm curious why refrigerant conversion was selected over replacement. Was replacement an option considered? In this country the cost differential between conversion and replacement is very minor in many cases.

LGtonnagetech,

Because the chiller installed at the 4th floor below round floor. If replace the chiller. many shop need to shop their business when the replacement work is doing. The customer will loss much money than refrigerant conversion!!!!!