16
3
Defrost
Period
Defrost
mode
1. Determination of Defrosting Period
1) Total Run-time of Comp:10,11,12,13,14, 15 hours
2) Run-ratio of Comp: over 80£¥
3) Total times of Door opening: over 3 times
4) Total time (Comp On + Comp Off): 60 hours
2. Explanation
1) Defrosting starts with the following conditions,
in case total comp-run time passes 9 hours
- when an Error occurs
- when running-rate of Comp is more than 80£¥
- when total Door-opening times is more than 3 times
2) Defrosting starts unconditionally at each hour after total
Comp-run time passes 9 hours if terms of 1) is occurred.
3) Defrosting starts immediately when Total run-time is
more than 15 hours under the condition of 1),2) is not
satisfied.
4) Defrosting starts immediately when Total time is more
than 15 hours under the condition of 1),2),3) is not
satisfied.
4
1. Normal Defrosting
1) Starting by Defrosting Period
2) How to proceed : using heater
3) Defrosting mode and procedure
Proceeding time: 40min
Control Object: Comp On,
FAN ON,Heater Off
Terminating Condition:
if R-sensor temp. is below
even though it passes 40 min.
Limit Proceeding time
- 30 min.: D1 ERROR
D-Sensor disconnection/
short-curcuit
- 80 min.: F3 ERROR
Normal Control state
Control Object: Comp Off,
FAN OFF,Heater On
Terminating Condition:
if D-sensor temp. is over 10.
Proceeding time: 4min
Control Object: Comp Off,
FAN Off,Heater Off
Proceeding time: 4min
Control Object: Comp On,
FAN Off,Heater Off
NO CONTROL FUNCTION CONTROL OBJECTS CONTENTS REMARK
OPERATION AND FUCTIOLNS
1
2
3
1
2
3
Pre-cool
Heater Defrostiong
Pause
Fan-delay
1
2
1
2
Normal Run
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