I have a new Tecumseh compressor without oil. The Hvac tech that will be
installing it in 2 weeks says that it does not need oil and there is oil already
in the R22 that is charged. As an engineer, i disagree. I read that for an
R22 unit, mineral oil is what is recommended by Tecumseh. He is also going
to install a new evap coil at the same time.
I have printed out all the data sheets for him. He has around 20 years
experience. While i read that most compressors ship with oil, why would a
tech not know about what i am talking. Just to make sure i have him
do it right, what is the best way to add the right amount of oil?
Pour 1/2 the oil through the low pressure side and the other half to the
high pressure side? Then have him connect the tubes and braze it? May
be he will know when he sees, but i am trying to get all my facts straight
before he touches the stuff.
I had this compressor as a spare unit that came with the house. Its new,
but has been sitting for a while. I have an evap coil leak. So while i replace
that i thought i might as well swap out the compressor, since the comp
is almost at the end of life on a 18 year old home.
Also would installing a TXV at the evaporator help in any way?
The system is an 2 ton carrier R22 system.
Tnx for the help.