6. Hot-Start Control

The indoor fan stops until the evaporator piping temperature will be reached to 28°C(82.4°F).

During heating operation, if piping temperatures fall below 26°C(78.8°F) fan stops.

The operation diagram is as following.

 

 

Maximum

 

 

INDOOR PIPE

 

1min

 

 

 

 

 

TEMP.

 

 

 

 

28°C(82.4°F)

 

 

 

 

 

 

 

 

 

 

 

 

26°C(78.8°F)

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR FAN

OFF

LOW

Selecting

OFF

SPEED

fan speed

 

 

 

 

 

 

 

 

COMPRESSOR

ON

7. Defrost Control

Defrost operation is controlled by timer and sensing temperature of outdoor pipe.

The first defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 45 minutes passed from starting of heating operation and more than.

Defrost ends after 10 minutes pass from starting of defrost operation or when the outdoor pipe temperature rises over 12°C(53.6°F) even if before 10 minutes.

The second defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 45 minutes pass from ending of the first defrost and more than.

 

More than 45 minutes of

Within

More than 45 minutes of

 

Outdoor Pipe Temp.

heating operation

10 minutes

heating operation

Defrost

 

Defrost

 

 

 

 

 

 

12°C(53.6°F)

 

 

 

 

(Defrost OFF)

 

 

 

 

-6°C(21.2°F)

 

 

 

 

(Defrost ON)

 

 

 

 

 

 

 

HOT-

 

 

 

 

START

 

Indoor Fan

ON

OFF

ON

OFF

Compressor

ON

ON

ON

ON

4-Way Valve

ON

OFF

ON

OFF

 

–19–

 

 

 

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LG Electronics LF300CP(LP-C303R20), LF480CE(LP-C483TA0) service manual Hot-Start Control, Defrost Control