14
1. Defrost Mode
INPUT CONTROL OBJECT
CONTENTS REMARKS
1. Defrosting Cycle
1. Comp
2. F/R-ICE/C Fan
3. FD/RD Heater
Pause
Fan-Delay
Heater
Defrosting
Heater
Defrosting
1) Comp, F/R-ICE/C Fan : OFF
R Damper : CLOSE
FD/RD Heater : ON
2) Time limit
30 seconds : Heater is ON regardless of D-sensor
temperature right after defrosting start
30 minutes : in case of FD/rD Error
50 minutes : in normal control state
3) If FD-sensor ≥55.4℉, F Heater Defrosting is OFF
If RD-sensor ≥ 55.4℉, R Heater Defrosting is OFF
Pause
Time : 7 minutes
Comp, F/R-ICE/C fan, Damper, Heater etc. : OFF
Fan-Delay
1) Time : 5 minutes
Comp C Fan : ON
F/R-ICE fan, Damper, Heater : OFF
4-3. Defrost Mode
2.The defrost mode start with the following conditions
1) Total operation time of comp. becomes : 6,8,10,……… hours.
① Any error mode : R1, F1, u1, FD, rD, F3, r3, RT/S, Door-switch etc.)
2) Defrosting mode starts unconditionally as long as total comp. work time is
20 hours, even if the above conditions 1) are not satisfied.
3) Defrosting mode starts unconditionally as long as comp. continuing work time is
8 hours, even if the above conditions 1) and 2) are not satisfied.
4) Defrosting mode starts immediately as long as total time of [comp. ON +
comp. OFF] is over 60 hours, even if the above 1) and 2) and 3) conditions are not
satisfied.
3. In providing initial power (or returning power failure)
If FD-sensor or RD-sensor temp. ≤ 38.3 ℉, defrosting mode starts .
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