strange air conditioning device

[kefah]

hi
i checked heatpump window type ac
its 2 ton
there is thin tube connecting beween the exit of the capillary tube and compressor bottom
what its utility
for oil return
or cooling compressor
or what
Snap_2013.07.10_23h31m57s_001.jpg

[The MG Pony]

I'd wager to cool the compressor giving where you are! oil will go with the refrigerent so normaly a dedicated return is not needed

[passandscore]

I would agree with The MG Pony. Attached is a pic. It shows a reciprocating hermetic with the same oil cooling line.

[r.bartlett]

The oil cooling is not the same. The diag above will have an in/out circuit. His picture shows a simple refrigerant injection into the compressor body to aid cooling.

[passandscore]

I realize were talking about 2 different compressors. That picture is to show him that some hermetic compressors have oil cooling. Are you suggesting that his compressor is muilti-stage?

Muilti-Stage Rotary.png

[The MG Pony]

No not multistage, it is just a very cheap, yet reliable way to cool a rotary piston compressor, you rob 600btu/h from the cooling capacity and shunt it to the low side shell to cool the compressor.

[Brian_UK]

Mind you, I feel sorry for that compressor.

Have you noticed the marks half way up the casing where it has been beaten by a blunt object?

[Rob White]

Mind you, I feel sorry for that compressor.

Have you noticed the marks half way up the casing where it has been beaten by a blunt object?

Gotta show it who's the boss

Rob

.

[r.bartlett]

I would agree with The MG Pony. Attached is a pic. It shows a reciprocating hermetic with the same oil cooling line.

I realize were talking about 2 different compressors. That picture is to show him that some hermetic compressors have oil cooling. Are you suggesting that his compressor is muilti-stage?

It's not an oil cooling line as MG said and you agreed with...And where have I suggested it's a 2 stage compressor...???

I need to learn Canadian ...

[kefah]

ok
what happen if i removed the that line
somebody here said they removed it
and compressor get hot then overloaded

[Magoo]

Probable liquid injection discharge cooling for a scroll on a low temp application

[The MG Pony]

if you remove it, the compressor will cook and die in all probabilities

[kefah]

now im confused
what is the utility
cooling or oil return or what

[r.bartlett]

now im confused
what is the utility
cooling or oil return or what

draw it as it would appear in a vapor compression diagram and then you can work it out...

[Peter_1]

Wow RBartlett, interesting

[The MG Pony]

Its job is to cool the compressor by shunting a small amount of liquid to the suction/discharge of the compressor! with out this it will over heat and die due to the hi ambient temps!

[kefah]

thank u all
please close thread

[kefah]

thank u all
please close thread