Low pressure chillers using R-11, R-123, R-123zde go into a vacuum when idle. This causes air and moisture to enter the chiller. Air inside a chiller can cause hard start ups and surge. Moisture in a chiller can combine with the refrigerant in the unit and cause acid to form, leading to costly repairs and problems.
It makes sense to get the most out of them. You do preventative maintenance such as oil changes, tube cleaning, etc. PREVAC adds another layer to passive preventive maintenance, giving you the peace of mind that you are maximizing your equipment lifespan.
Maintaining the chiller in peak performance is crucial to facility operation – whether it’s for tenants, data storage or industrial processes. PREVAC prevents costly downtime by preventing surge, extending equipment life and streamlining service.
Low pressure chillers enter a vacuum when they are idle, causing air and moisture to enter the chiller. This can cause a variety of problems:
Prevac pressure seals a chiller at 0.00 psig, preventing it from going into a vacuum during idle periods. This prevents air and moisture from entering the system. This will:
Perform minor repairs at 0.00 psig to prevent refrigerant losses, without the need for portable pressurization units
Improve response time for leak repairs to minimize downtime.
Enable service personnel to easily conform to EPA, ASHRAE, NEC and local building codes when leak testing.
No need for dangerous temporary high voltage and water connections.
Audible alarm alerts maintenance personnel of high pressure at 10 psi, warning them before the bursting disc blows at 15psi.
Emergency shutoff within sight of equipment
Current limiting fuses with amp interrupting capacity of 200,000 amps, protecting equipment and personnel .
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