How
It Works
The
OAM
Purger
is designed to remove oil, acids and moisture from a Centrifugal
Chiller・s refrigerant. However, its main purpose is to remove oil
from the refrigerant and return it to the Chiller・s lubrication
circuit (oil sump) where it belongs. Initial oil stripping is accomplished
in two phases. The first phase, or initial oil stripping process,
occurs at initial start-up of the OAM
Purger.
This is when all the excess oil that has been added to the system
over time is removed and discarded. Often times the initial stripping
process can yield several gallons to multiple tens of gallons depending
on how severely the refrigerant is saturated with oil.
The second phase begins when all excess oil has been removed from
the refrigerant. The OAM
Purger
will, from that point on, maintain the system in lubrication balance.
Lubrication balance meaning virtually 100 percent of the compressor・s
lubricating oil is kept in the oil sump where it belongs.
Operation of the OAM
Purger
is accomplished by a ：Patented； process utilizing gravity, heat
and pressure in conjunction with special high capacity desiccants
to completely remove oil, acids and moisture from a Chiller・s refrigerant
charge.
The OAM
Purger
works by repeatedly extracting 10 to 20 pounds (depending upon the
refrigerant level available in the chiller evaporator) of oil-contaminated
refrigerant for processing from the Chiller each purge cycle. The
oil -contaminated refrigerant is heated by means of a flexible band
electric heater and the liquid refrigerant is vaporized off. As
the refrigerant vaporizes it passes through the special E-Z Change
：High Capacity； Moisture/Acid filter-drier where it is cleaned
before returning to the Chiller evaporator. At the end of the distillation
phase any distilled oil is automatically returned to the Chiller・s
oil sump through an in-line ：High Acid Capacity； filter-drier
where any residual acids are removed.
The OAM
Purger
is able to process between 850 and 1250 pounds of refrigerant per
week.
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