View Full Version : what evap. temperature should i get
duraid
16-10-2005, 07:30 PM
hi guys if I have a vertical freezer with a fan evaporator like ones used in restaurants and the temperature I want to get is -20c what is the evaporator temperature should be reached to cool the space to -20 C or in other words where should i start from to check my system health (the superheat the actual temperature of the suction line)
chillin out
16-10-2005, 08:30 PM
Hi Duraid,
Why don`t you just stop the evap fan run the system and see if your licked finger sticks to all the evap but not all the way to the compressor?
I know this is a bit rough but it works for me.:D :D
chillin
duraid
16-10-2005, 09:02 PM
thanks chillin out but what if my fingers sticks on the first half of evap. and not on the second half does that means lack of charge (of course if we supose all components of system are okay)
chillin out
16-10-2005, 09:12 PM
Most likely yes.
Best thing to do then leak test repair leak and vac and recharge
chillin:)
hi guys if I have a vertical freezer with a fan evaporator like ones used in restaurants and the temperature I want to get is -20c what is the evaporator temperature should be reached to cool the space to -20 C or in other words where should i start from to check my system health (the superheat the actual temperature of the suction line)
To achieve cabinet temperature of -20C you need to evaporate at -30 C minimum
Look on your gauges...........is the compressor sized correctly to achieve this??
If you have a full charge of refrigerant.........and the gauge shows -30C , the cabinet will achieve desired room temp
botrous
17-10-2005, 11:16 AM
LMFAO. .
Now what does that mean ???????
Temprite
17-10-2005, 11:34 AM
Laughing My F***ing Arse Off
botrous
17-10-2005, 11:43 AM
10x Temprite , very nice translation lololol
regards
jteixiera
17-10-2005, 05:31 PM
delta t is got to be 10
TXiceman
17-10-2005, 06:41 PM
What your actual suction temperature/pressure will be is determined by where the condensing unit and unit cooler balance. Normally you will be in the range of 5 to 10 dC cooler than your box temperature.
Ken
Temprite
27-10-2005, 01:39 PM
Laughing My F***ing Arse Off
This post is for Richard Towns benefit, who decided to launch a personal attack against me via a private message.
A few posts prior to this someone posted LMFAO, that particular person has now been ejected from the forum.
Botrous asked what it meant and I told him.
I would never make those remarks towards another members comments.
Get you facts right before you go shooting off at the mouth.:mad: :mad: :mad: :mad:
Manoj Menon
31-10-2005, 08:23 AM
Delta T should be 5 to 6 deg's. For -20 DegC application the ideal SST is -26 Deg C. ( That is the return suction line temperature at suction header.).
Check the super heat. genearlly we should maintain 8-10 Deg. at Evapoartor suction. For Air conditioning 8 - 12 Deg is ideal.
Tx and regards
Manoj Menon.
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