wllmwallace
06-04-2009, 10:49 PM
Have a Russell brand refrigeration unit (walk in freezer) 5.0 tons, with a Copeland Scroll Compressor, liquid injection type cooling system. It runs on Honeywell brand 404A refrigerant.
Here's the problem:
Refrigerant seems to be breaking down, pressure's throughout the system rise approx. 100lbs more than they should. Temperature/Pressure check on refrigerant in standing drum, show refrigerant gains 100 lbs more than the chart says it should be. This break-down occurs 4-7 days after running, and just shows up immediately/overnight with no warning.
System never runs into a vacuum, oil has been changed several times in the compressor using POE Oil. Refrigerant in system has been changed 5 times. Each time refrigerant has been changed system has been vacuumed down to 400microns.
Question I have is has anyone had a problem with this refrigerant breaking down, and what could be the cause. Have a new compressor coming and wanted to know if I should convert system to another refrigerant type, or what I should do. Any more information, please PM me, and I can get a phone number to you if you could help me over the phone. My e-mail is: wllmwallace@yahoo.com (wllmwallace@yahoo.com) Thanks for ANY help with this.
Here's the problem:
Refrigerant seems to be breaking down, pressure's throughout the system rise approx. 100lbs more than they should. Temperature/Pressure check on refrigerant in standing drum, show refrigerant gains 100 lbs more than the chart says it should be. This break-down occurs 4-7 days after running, and just shows up immediately/overnight with no warning.
System never runs into a vacuum, oil has been changed several times in the compressor using POE Oil. Refrigerant in system has been changed 5 times. Each time refrigerant has been changed system has been vacuumed down to 400microns.
Question I have is has anyone had a problem with this refrigerant breaking down, and what could be the cause. Have a new compressor coming and wanted to know if I should convert system to another refrigerant type, or what I should do. Any more information, please PM me, and I can get a phone number to you if you could help me over the phone. My e-mail is: wllmwallace@yahoo.com (wllmwallace@yahoo.com) Thanks for ANY help with this.