12
SJ-21P
SJ-D25P
2. DEFROSTING
(1) No defrosting operation is necessary.
No defrosting operation is necessary.
As this machine is so designed that a built-in
evaporator cools air and a fan circulates cooled
air, neither the freezer nor the refrigerator is
frosted, though Evaporator is frosted.
The frosted Evaporator is defrosted automatically
due to the function of defrosting timer and heater,
requiring no defrosting operation.
(3) The following circuit diagrams in the table show automatic defrosting function of the refrigerator with
timer and defrosting thermostat.
(2) Where is melted frost brought.
1. Melted frost is brought into Evaporating pan
at the back of the set and is evaporated here
by the heat of compressor.
2. Be sure to use Evaporating pan as inserted
so as to be level with the outer case.
Operation
Electric diagram
Description
1. Cooling
(Normal)
2. Defrosting
(Time 20 to 30 min.)
3. Drain
(Time approx. 5 min.)
4. Cooling
(Re-start)
The integration timer integrates running
time of the compressor.
When it reaches cycle time of defrost
timer, the timer contact is changed to
start defrosting.
The timer contact is changed to start
defrosting, the timer motor stops and
power is supplied to the defrost heater.
It takes about 20 to 30 min. to defrost.
When little frosted, the defrosting take
little time. When much frosted, the def-
rosting takes much time.
When the defrost thermostat becomes
OFF, the timer motor at rest starts
running.
During the operation time (delay time of
defrost timer) defrosted water drained
outside the refrigerator.
Timer contact is changed to cooling
operation and the compressor starts
running and the timer motor stops.
Defrost thermostat contact becomes
ON when it’s cooled. And the timer
motor starts running(Fig. F-3)
Fig. F-3
Fig. F-4
Fig. F-5
Fig. F-6
Thermostat
Timer contact
Timer motor running
Compressor running
Thermo. fuse
Defrost heater
Defrost
thermostat (ON)
Defrost thermostat ON
SOURCE
Timer motor
Compressor
COMP
TM
Thermostat
Timer contact
Timer motor stops
Compressor stops
Thermo. fuse
Defrost heater
Defrost
thermostat (ON)
Defrost thermostat ON
SOURCE
Timer motor
Compressor
COMP
TM
Thermostat
Timer contact
Timer motor running
Compressor stops
Thermo. fuse
Defrost heater
Defrost
thermostat (OFF)
Defrost thermostat OFF
SOURCE
Timer motor
Compressor
COMP
TM
Thermostat
Timer contact
Timer motor stops
Compressor running
Thermo. fuse
Defrost heater
Defrost
thermostat (OFF)
Defrost thermostat OFF
SOURCE
Timer motor
Compressor
COMP
TM
