Low pressure trip !!

[oilzee]

[quote=nike123;124368]

Who has installed that valves and for what reason? Are they are on other correctly working identical systems?

we installed that valve according to supplier design so we had 1 year warranty for the compressor .
For me this system was first time i did .For them , I have no idea .

[oilzee]

can i say , it was too much compressor oil in the system and affected low pressure trip !!

[nike123]

can i say , it was too much compressor oil in the system and affected low pressure trip !!

Did you checked oil level after you have full load for some time to allow proper oil return?

[oilzee]

Did you checked oil level after you have full load for some time to allow proper oil return?

after i released the oil yesterday , its maintain at 3/4 full level ( half and hour running , full load )
but today i checked it was almost full .( no load )

[oilzee]

i m going to release some more oil by next tuesday and monitor the system .

[nike123]

What is that compressor model#?
Am I correct when I say that you actualy have compressor pack comprised of 4x20Hp and 2x10Hp which together feeds evaporators in blast freezer thru 1 common liquid line.
Or I get something wrong?

[oilzee]

What is that compressor model#?
Am I correct when I say that you actualy have compressor pack comprised of 4x20Hp and 2x10Hp which together feeds evaporators in blast freezer thru 1 common liquid line.
Or I get something wrong?

i m verry sorry because my infomation provided not clear
actually our system has one compressor for one evaporator , that mean 4 sets of 20Hp refrigeration system ( 4 x liquid line , 4 x Suction Accumulator )

So one system has 3 regulators then 4 system have 12 regulators .

Compressor Model : 4G-20.2-40P( compressoroil already changed to ester oil )

Evaporator : one unit is 29.8kw@6KTD