Samsung RL44Q Series Service Manual page 174

5. SELF DIAGNOSIS & TROUBLE SHOOTING REFERENCE INFORMATION
9-2-3-3) Defrosting function
1) Freezer defrost will be determined by the accumulated Compressor-On time.
2) With the initial power on, the unit carries out Freezer defrost when the accumulated Compressor-
On times becomes 6 hours.
3) The defrost cycle varies from 6 to 19 hours.
4) The defrost cycle is to be decided depending on the ambient temperature, the number of the
Fridge door openings and the duration of the Fridge door opening.
NO of Fridge Door
Opening
Fridge : More than once
Normal Load without Door Opening
5) It carries out the Precooling function when it becomes a time for defrosting with the ambient
temperature of 18 °C or less.
-. With the Precooling function, it does the heating after running the compressor and the Freezer
Fan for 50 minutes.
6) Under the following multiple conditions,the defrost cycle will be set to 19Hr.
-. No R-Door opening with the Ambient temperature range of 23 ~27 °C.
-. The Fridge temperature does not exceed Trset_on+6 °C when the compressor starts running.
-. The Freezer temperature does not exceed Trset_on+4 °C.
7) The D-Heater Off temperatures are as follows.
Classification
General Defrost Conditions
Defrost Mode
NOTE
The Defrost Off temperature can be changed for the purpose of performance
enhancement without a notice.
Ambient Temp
28 °C 0 27°C ~ 23C
6 hrs
11 hrs
6 hrs
Defrost without Delay
Defrost without Delay
Table 2-6. Defrost Cycle
Freezer room
15°C
15°C
0 22°C 0
6 hrs 6 hrs
6 hrs
Defrost without Delay
174
Remark
Mi n i m um real ti m e 5 hours Execute defrosti n g
Remarks
For A/S