ferret82
08-02-2009, 09:06 AM
Hi There, this is my first post so i hope that i have put it in the right section. I am only new to the refrigeration area i know some basics but need help. I have a freezer unit which has the following
HP = 2100Kpa = 49 Degree Celsius
LP = 250Kpa = -19 Degrees Celsius
I have found on the
outlet of my condenser the temperature is 46 Degrees C
and the Outlet side of my evapotor is -5 Degrees C
I used this to find my superheat / Sub cooling which ending up being
49 - 46 = 5
19 - 5 = 14
The ambient temperature where i work is about 45 Degrees C at the moment and the refrigerant is R404a
My problem is that the compressor will not pull the freezer down to -20 it gets to about -18.7 degrees C and just continues to run.
Can anyone help me in troubleshooting this and give me some where i need to look to fix this problem.
Thanks
HP = 2100Kpa = 49 Degree Celsius
LP = 250Kpa = -19 Degrees Celsius
I have found on the
outlet of my condenser the temperature is 46 Degrees C
and the Outlet side of my evapotor is -5 Degrees C
I used this to find my superheat / Sub cooling which ending up being
49 - 46 = 5
19 - 5 = 14
The ambient temperature where i work is about 45 Degrees C at the moment and the refrigerant is R404a
My problem is that the compressor will not pull the freezer down to -20 it gets to about -18.7 degrees C and just continues to run.
Can anyone help me in troubleshooting this and give me some where i need to look to fix this problem.
Thanks