I'm not with Carlyle or Carrier, so take what I say with a grain of salt. That being said, I do have some experience with Carlyle, although it is primarily with their medium and low temperature compressors. I would say that you could replace hot gas unloading with suction cutoff because all the operating parts for the unloading system are inside the head assembly. If you replace the head assembly and use the correct gaskets, I don't see why that wouldn't work. The only thing I would be aware of is making sure the valves on the valve plate seat. I have had trouble getting the discharge valves to seat when I've replaced valve plates on Carlyles.

@@VTdarkangel thank you for your attention. I think as you said, but I wanted to consult experienced masters before implementing it. I ordered the parts and will let you know the progress after testing. Best regards

We have a Farmingdale NY location, a Maspeth Queens location, and a location in Norcross Georgia!

Yes exactly the same thing i am thinking

We appreciate the love!

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Thank you

It was stuck to the valve plate when it was pulled off. Its common and when a compressor in the field is being opened to be troubleshoot, it important to make sure nothing falls out, such as valve reeds sticking to the plate. If your changing the plate and have new parts ready to be installed then your good.

@@NationalCompressorExchangeInc Another good tip, use 2 old or spare bolts, cut the heads off and place them in before removing the head. It will prevent shifting and snapping the pins. Also its a huge lifesaver placing everything back together. That first seal is a pain as it tends to knock the tension thing and flapper off.

Thank you very much

Thank you so much. We made this video because it a very common question we get asked.

On this model compressor there is a plug in the bottom pan that you can pull to help drain. To fill it, on the front of the compressor next to the oil pump there is a port that you can charge the compressor.

Yes, 100% you will need to pump down and isolate the compressor from the system.

Hi Nick, our first recommendation is to not pull the pins. If your doing a valve plate change in the field and the pins look good, then use the old pins. Reason we would make that suggestion is if you crack a pin or sheer it off, it is going to be severely difficult to repair that and you will probably end up having to remove the compressor. if the pin is damaged from removing the head and not sheered off and you would like to give it a try then we would suggest a good set of plyers or end nippers. Make sure you get right up against the casting and do not squeeze to hard and snap the pin.

oil pressure zero

@@babutiruvalla9305 Thank you for reaching out. There are multiple causes and questions that can be asked. Also, what it the model? Lets assume it is like the Copeland compressor above. To give you a few quick things to think about please consider the following: 1) is the oil clean and free of debris? if not, it can clog the oil pickup screen in the crankcase. 2) Does the compressor have refrigerant flooding in the crankcase? That can cause it as well, but check your sight glass as if that is occurring you would see foaming. 3) if you had a flooded start or to much liquid in the crankcase it can suck up into the oil pump and snap the oil pump tang.

Based on what you stated and the crank falling far down, it sounds like your crank might be cracked at the main bearings.

100%, let us know where we can email it

Great question! Yes perfectly normal. Its a quick visual aid to let you know the gasket is installed correctly and second what oil pump gasket was used. Copeland has a bunch of different oil pump design gaskets, each one has a different tab sticking out.