Attention installer, Oil type, Oil levels – ClimaCool SHC onDEMAND 30, 50, 70, 85 Manual User Manual
Page 36: Adding oil
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ClimaCool SHC onDemand use scroll compressors. They
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contained in this manual will be useful for their care.
All scroll-type machines are unidirectional and will only
compress in one direction. Operating in the reverse rotation
can be destructive and will be indicated by a load operating
noise together with a lack of compression.
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Built into the logic of the CoolLogic Control System is an anti-
short cycle timer which will prevent the compressors from
restarting immediately following a compressor shutdown.
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The compressor operates on a sealed system and oil can
only be lost if a leak occurs. There are few cases when oil
will need to be added to a machine in normal operation.
Oil Type
The oil in scroll compressors will be either Polyolester type
oil (POE) or polyvinyl-ether type oil (PVE). Both refrigerant
oils require special handling and should be protected
from contamination. They are extremely hygroscopic and
will absorb moisture rapidly from the air. It is strongly
recommended to store and dispense both oils from sealed
metal cans. ǣ
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Oil Levels
The oil level in the compressor should be checked with the
compressor running. The compressor oil level may vary
during operation and particularly on the startup. The normal
operating compressor oil level should be between Ы and ½
of the sight glass. During operation a certain amount of oil
is carried out into the refrigerant system. The system has
been designed to bring the oil back to the compressor. If the
level in the sight glass falls, it may be due to the operating
conditions and enough time should be given to allow the oil
to return before more oil is added. This could take up to six
hours of operation. The compressor should not be allowed
to operate with less than Я” oil sight glass for longer than
four to six hours.
Adding Oil
The compressor must never be ran in a vacuum. A suitable
hydraulic pump should be used to add oil and reserved for
this process. Ƥ
Ǥ Oil should only be added to a
compressor while it is operating to observe valid oil sight
glass levels. Oil is pressure-injected either into a gauge
connection on the suction line or injected into the oil
process port at the bottom of the compressor housing. Only
enough oil should be added to raise the level above the Ы
sight glass point.
WARNING
To avoid the release of refrigerant into the atmosphere,
the refrigerant circuit of this unit must be serviced only by
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requirements.
All refrigerant discharged from this unit must be recovered
WITHOUT EXCEPTION. Technicians must follow industry
accepted guidelines and all local, state and federal statutes for
the recovery and disposal of refrigerants.
If a compressor is removed from this unit, system refrigerant
circuit oil will remain in the compressor. To avoid leakage of
compressor oil, the refrigerant lines of the compressor must
be sealed after it is removed.
ATTENTION INSTALLER
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