4 – 1
Section 4 • Operation
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
Normal Operating Level
Maximum NON-Operating Level
Minimum Operating Level
Operation
All operation (set-point adjustments, calibrations,
moni toring) of the compressor unit is done through the
mi cro-processor. For additional procedural information,
re fer to micro-processor manual (35391SC for Vission
20/20 Operating Manual or 35391CM for Compact
Logix PLC Software Manual).
Figure 4-1. Oil Operating Levels
WARNING
Software programming credentials shall only be
made available by the supplier. The user will only
have access to operational features established by the
supplier. Failure to comply may result in serious injury
or death.
Oil Inspection
WARNING
Avoid skin contact with any liquid refrigerant or oil.
Wear rubber gloves and a face shield when working
with liquid refrigerant or oil. Failure to comply may
result in serious injury or death.
WARNING
Avoid skin contact with oil. Wear rubber gloves and a
face shield when working with oil. Failure to comply
may result in serious injury or death.
Inspect oil level through sight glasses on the oil separa-
tor, see Figure 4-1. Oil Operating Levels. Drain or ll oil
as required. For oil draining and lling procedure, see Oil
Charging and Oil Draining in Section 5.
Notice on Using Non-Vilter Oils
CAUTION
Do not mix oils. Failure to comply may result in
damage to equipment.
NOTICE
Vilter does not approve non-Vilter oils for use with
Vilter compressors. Use of oils not specifi ed or
supplied by Vilter will void the compressor warranty.
Due to the need for adequate lubrication, Vilter recom-
mends only the use of Vilter lubricants, designed spe-
cically for Vilter compressors. Use of oil not specied or
supplied by Vilter will void the compressor warranty.
Please contact your local Vilter representative or the
Home Ofce for further information.
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