Compressor oil

[mvtop]

Hi,

i have a small Matsu****a hermetic Compressor 1/3 HP, R-134A. it's been disconnect for sometime. I noticed it tipped over on the bench and some oil has spilled out.
If i want to add oil back, is it just a matter of pouring out the rest of the oil through the suction side and adding it back the same way?

if that's the case, is there any special oil i need to use besides just compressor oil.

sorry if this is a silly question, but the results could be worse if not asked.

thanks.
aaron

[amitsaxena]

Dear
You can pour the same qty but i would suggest first check the Oil type (POE) and Make.

Also before pouring inside the comp, Just heat it at 100°C for 15~30 min and Pour the oil from Discharge or Process tube not from suction as it may enter to Suction muffler (Which is not advisable)

Thanks
Amit

[D.D.KORANNE]

POE oils do not revert back to original quality after heating nor evacuuation help remove absorrbed moisture. For POE oil moisture content > 100 ppm is unacceptable since hydrolysis of oil results in alchohol & acid. Better evacuuate compresor , charge POE and immediately charge N2 upto about 30 psig until put to use.
NEVER USE AMBIENT EXPOSED POE OIL ; SPECIALLY WITH R134a; it has tendency to form soappy solution & block capillary tube.

[icecube51]

R134a comp needs ester oil,and the 1/3hp has a volume of 625mL. clean the used one by poring out the old oil,put some new one in (250mL) give it a good shake and pore it out again. then ,straight away pore the new exact amount of oil in and mount the comp,or seal the tubes,so no air can enter.

Ice

[sedgy]

hi mvtop,
can we take it the compressor has been disconected and is open to the elements if so all the oil needs replacing becouse mousture will have got into the oil

[icecube51]

Yep !!!!!!!!!

[glenn1340]

If the compressor`s been tipped over the pump could have come off its mounting springs. If it has you won`t need to worry about the oil problem!!