91
Refrigerant and oil mixture fill sight
glass after weekend shutdown
FIGURE 6-2:
Five seconds after start-up, violent
foaming action fill sight glass as re-
frigerant boils away taking oil charge
with it
FIGURE 6-3:
More than 60 seconds after start-up,
oil level is well below normal operating
levels - a condition that is an important
factor in compressor bearing wear.
FIGURE 6-4:
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