Samsung SR-S25NTA - Page 30

Like
the
above
BLOCK
DIAGRAM,
LINE
of
AC
220V
is
connected
to
RELAY
for
COMP
and
COMMON
for
HEATER
RELAY,
respectively.
At
this
time,
if
RELAY
is
not
operated,
contact
point
is
NC
state
and
R-
Defroster
HEATER
RELAY
is
OFF
state.
So,
LOAD
maintains
OFF
state.
If
COMP
becomes
the
conditions
for
operation
and
COMP
RELAY
is
operated
(move
to
contact
point
NO),
COMP
becomes
closed-circuit
and
operated
and
makes
power
for
both
ends
of
F,
R-Defroster
HEATER
OFF
state.
If
F-Defroster
HEATER
comes
to
operate,
power
for
both
ends
of
COMP
should
be
OFF.
x
Purpose
of
the
application
of
the
above
circuit
:
to
block
all
power
for
both
ends
of
Defroster-HEATER
on
the
operation
of
COMP
and
to
block
all
power
for
both
ends
of
COMP
on
F-Defroster
HEATER.
<Co-operation
Table>
Operation
condition
Load
condition
COMP, Defroster
COMP
and
F,
R-Defroster
HEATER
OFF
RELAY
ALL
OFF
Block of power for both ends of
F, R-Defroster HEATER
COMP ON and F, R-Defroster
HEATER OFF
COMP
RELAY
operation
F-Defroster HEATER ON
COMP OFF
Block of power for both ends of
andCOMP
F-Defroster
HEATER
operation