Ingersoll-Rand Thermo King V-520 10, Operator'S Manual

Page: 34 / 74

Unit Operation
34
Initiating the Manual Defrost Cycle
CAUTION: Before initiating a manual defrost, ensure that
the unit is not already in a defrost cycle. When the unit is in a
defrost cycle the defrost symbol appears on screen.
1. Press and release the SELECT key once, and the letters
dEF will appear (flashing) on screen along with the
present defrost condition OFF.
Figure 18: Defrost Condition Off
2. To activate manual defrost, press the ENTER key and then
the UP or DOWN key and the defrost condition will
change to ON.
Figure 19: Defrost Condition On
3. Press the SELECT key twice to return to the STANDARD
DISPLAY (three times in multi-temperature units), where
the DEFROST symbol will appear when the defrost cycle
begins (
the klixon must be closed ).
Figure 20: Defrost Symbol in Display
Unit Operation
34
Initiating the Manual Defrost Cycle
CAUTION: Before initiating a manual defrost, ensure that
the unit is not already in a defrost cycle. When the unit is in a
defrost cycle the defrost symbol appears on screen.
1. Press and release the SELECT key once, and the letters
dEF will appear (flashing) on screen along with the
present defrost condition OFF.
Figure 18: Defrost Condition Off
2. To activate manual defrost, press the ENTER key and then
the UP or DOWN key and the defrost condition will
change to ON.
Figure 19: Defrost Condition On
3. Press the SELECT key twice to return to the STANDARD
DISPLAY (three times in multi-temperature units), where
the DEFROST symbol will appear when the defrost cycle
begins (
the klixon must be closed ).
Figure 20: Defrost Symbol in Display