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ADDENDUM
CORRECT
PHASI
NG
OF SCROLL COMPRESSORS:
The
scroll compressor
is unidirectional compressor
and
will
o
nl
y
compress refrigerant in one rotation
directi
on.
Therefore,
the
proper rotation
of
the
scroll compressor
mus
t
be checked.
The
scroll compressor will run in
t
h
e
reverse
direc
t
ion
but
i t
will not
pump
refrigerant and
will draw substantially reduced current as
compared
to
listed values,
and will
re
sult
in
elevated
sound
levels. Scroll compressor will trip
on
internal protection after
running for some time
in
the reverse
dire
ction.
Ver
ification of t he
proper
rotat
i
on of t he scroll
done
by
o
b
servi
ng
that
suction
pressure
drops
pressure
rises
when the
compressor is
energized.
WARNING:
compressor
is
a
nd
discharge
EXTENDED
IMPROPER
ROTATION
OPERATION
MAY
ALSO
VOID
COMPRESSOR
WARRANTY
.
"
:\WI'\ HANUALS\SCIWLL ADD
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