The defrost timer (factory-set at every 3 hours at
shipment) will automatically work for automatic
defrosting.
When the delay timer of 1 minute runs out after
defrosting is completed, it will be automatically
switched into the cooling operation.
At this time, the evaporator fan is stopped to prevent
the warm wind from entering the room.
(1)
Method to change the timer setting of defrosting.
Though the defrost timer was factory-set at every 3
hours at shipment, it is adjustable in the range of 1
to 6 hours.
1
Turn the operation switch to "OFF".
2
Press both display switch and defrost switch
together for 4 seconds, the preset time will be
displayed.
3
The preset time can be changed by pressing the
temperature setting switch
or
with the
defrost switch pressed.
(2)
Manual defrosting method
If inside cooling becomes poor since frost sticks to
the evaporator, manual defrosting is possible.
Press the defrost switch during cooling operation.
• The defrost indication lamp (orange) is lit
during defrosting operation.
• The operation indication lamp is lit during
defrosting operation. (Green)
It will automatically return to the cooling
operation when defrosting is complete. (It can not
be manually returned to OFF.)
After 60 minutes, it will be automatically
returned to the cooling operation with the
defrost forced ending timer (integrated).
7. Loading
7.1
Inspection before loading
(1)
Clean inside of the storage.
(2)
Inspect the car side and the refrigeration unit.
(3)
Establish a storage air temperature.
(4)
Before loading, make sure to perform
cooling operation, and refrigerate the
storage up to an established temperature
in advance.
First of all, it is necessary to refrigerate a storage
in order to transport and deliver goods properly.
Under the blazing sun in midsummer, inside of a
storage may become as hot as 60°C. And so if
freight is put in it without cooling the storage in
advance, a defect due to improper transportation
temperature will happen.
• Operate the refrigeration unit under the shade.
• In case of engine drive, operate it with engine
running more than 800min
-1
.
• On Type 2, make pre-cooling operation done by
the motor drive.
(5)
Check the sight glass during operation
and confirm that there is no bubbling and
that the checking color is green.
7.2
Loading procedure
(1)
Load a refrigerator freight truck with the
goods which have been cooled to an
established air temperature in advance by
some other cooling device.
(Never load anything hot and warm in the truck
because it will only cause overloading operation to
the refrigeration unit.)
(2)
Perform loading by stopping the refrigeration
unit and in a short time, if possible.
▼
▲
– 9 –
How to make an effective cooling
operation in advance.
