Daewoo FR - 530NT, Service Manual

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15
OPERATION AND FUNCTION
4. Defrosting Period
INPUT CONTROL OBJECT
1. Total Run-time of COMP
2. Running-rate of COMP
3. Total time of Door openings
4. Total times of Door open-close
5. RT-Temperature
1. Defrosting Mode
CONTENTS REMARK
1. What to be considered in determining Defrosting Period
1) Total Run-time of COMP : 6, 7, 8, 9, 10, 11, 12, 13 hours
2) Running-rate of COMP (every 1hour’ s running-rate)
: more than 80%
3) Total time of Door openings : 3minutes
4) Total times of Door open-close : 4times
5) Total Time (COMP-On + COMP-Off) : 60hours
6) Ambient Temperature : more than 35
B
C
7) In each Error : R1, D1, F3, C1, RT ERROR
2. Terms to start Defrosting Period
1) The Defrosting starts with the following conditions, in case total
COMP-run time passes 6hours
j
when an Error occurs
k
when running-rate of COMP (every 1hour’ s running-rate)
is more than 80%
l
when total Door-opening time is more than 3minutes
m
when total times of Door open-close is more than 4times
n
when the ambient temperature is more than 35
B
C
2) After total COMP-run time passes 6hours,
Defrosting starts under the condition that terms of 1) are satisfied,
in case of each 1hour’ s
COMP running-rate.
3)
Defrosting starts unconditionally when total COMP-run time passes
14 hours, under the condition that terms of 1),2) are not satisfied.
4)
Defrosting starts immediately when Total-time (COMP-On + Off
time) is more than 60 hours, under the condition that terms of 1),2),
3) are not satisfied.