LG LP-C508T / LP-H508T / LP-Z508T Service Manual ▷ View online
Service Manual 17
Operation details
5. Heating Mode Operation
The unit will operate according to the setting by the remote controller and the operation diagram is shown as
following.
following.
Intake Air Temp.
Setting Temp.
(Compressor ON)
Setting Temp. -1
°
C
Indoor Fan Speed
Compressor
Electric Heater(Option)
ON
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
Hot
Start
minimum
10sec.
minimum
1min
minimum
10sec.
OFF
A
A
OFF
LOW
LOW
LOW
Setting Temp. +1
°
C
(Compressor OFF)
Selecting
fan speed
Selecting
fan speed
fan speed
• A point: The indoor pipe temperature to be less then 35°C or Discharge air Temperature to be less than 29°C.
The indoor fan operates for minimum 10sec. even if the indoor pipe temperature falls lower than35°C
or the discharge air Temperature falls lower than 29°C.
or the discharge air Temperature falls lower than 29°C.
Low(
V
)
Stop(
VI
)
39˚C
Discharge Air Temp.
Indoor Pipe Temp.
34˚C
28˚C
26˚C
26˚C
Selecting Fan Speed(
IV
)
Low(
II
)
Stop(
I
)
(Hot-Start Operating)
Heating Start
(Hot-Start Release Point)
Selecting Fan Speed(
III
)
During heating operation, the operating procedure of the indoor fan is as the following.
Step
Indoor fan speed
Pipe temp.
Air discharge temp.
Off
≤
28°C(Hot start operating)
–
Low
≥
28°C
<39°C
Selecting speed
≥
28°C
≥
39°C
Selecting speed
≥
28°C
>34°C
Low
≥
26°C
≤
34°C
Off
≤
26°C
–
18 Floor Standing Type Air Conditioner
Operation details
6. Hot-Start Control
• The indoor fan stops until the evaporator piping temperature will be reached to 28°C.
• During heating operation, if piping temperatures fall below 26°C fan stops.
• The operation diagram is as following.
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 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 even if before 10 minutes.
• The second defrost starts only when the outdoor pipe temperature falls below -6°C after 45 minutes pass from
ending of the first defrost and more than.
INDOOR PIPE
TEMP.
INDOOR FAN
SPEED
Selecting
fan speed
OFF
OFF
LOW
1min
Maximum
COMPRESSOR
ON
28
°
C
26
°
C
More than 45 minutes of
heating operation
Outdoor Pipe Temp.
Indoor Fan
Compressor
4-Way Valve
ON
ON
ON
ON
OFF
ON
OFF
HOT-
START
ON
ON
OFF
OFF
ON
12
°
C
(Defrost OFF)
-6
°
C
(Defrost ON)
Within
10minutes
Defrost
Defrost
More than 45 minutes of
heating operation
Less than 5 minutes
Service Manual 19
Operation details
11. Child Lock function
This function is to operate Air conditioner only by Remocon.
The procedure is as the following
1st: Press the 2 buttons of the temperature control simultaneously, to raise-to lower on the Display Panel of the
The procedure is as the following
1st: Press the 2 buttons of the temperature control simultaneously, to raise-to lower on the Display Panel of the
product for more 3 seconds.
2nd: The buzzer sounds and then the window of Display Panel shows
LOC
(LOC) mark.
3rd: To release this function, the reverse again the operating procedure could be done.
During this function is operating, any buttons of Display Panel don't work. But it is possible to operate with
Remote controller.
Remote controller.
9. Protection of the evaporator pipe from frosting
• Compressor and outdoor fan stop when indoor pipe temperature is below -2°C and restart at the pipe temperature
is above 12°C.
10. Air Purifying Operation(CA, HA, ZA Model only)
8. Soft Dry Operation Mode
• During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 2°C, the compres-
sor OFF temperature is the setting temperature minus 1°C.
• When the room temperature rises over the compressor ON temperature, the operation mode is switched to the
Cooling mode.
• When the room temperature falls between the compressor ON temperature and OFF temperature, the opera-
tion mode is switched to the Soft Dry Operation.
• The operation diagram is shown below.
Intake Air Temp.
Indoor Fan Speed
LOW
Selecting
fan speed
Selecting
fan speed
LOW
LOW
LOW
LOW
Compressor
OFF
ON
ON
ON
OFF
OFF
ON
LOW
OFF
Setting Temp.
+2
°
C
(Compressor ON)
Setting Temp.
-1
°
C
(Compresso OFF)
Operation
Cooling
Cooling
operation
Dry operation
3 min.
3 min.
10 min.
maximum
7 min.
maximum
10 min.
Mode Selecting
Operating Mode
Fan Speed
Outdoor
OFF
Initial Starting of
Air purifying
Operation
Air purifying
Operation
- Low at the initial
- But could be
- But could be
switched to Med. Hi
OFF
- Outdoor not operating
- Fan operating + Air purifying
operating
Repress Air
purifying
Button or
ON/OFF
Button
When switched to
Air purifying opera-
tion
Air purifying opera-
tion
Selecting Speed of
Main Operating Mode
Main Operating Mode
ON or OFF
depend on main
operating
condition.
depend on main
operating
condition.
- Outdoor operating
- Main Operating +
- Main Operating +
Air purifying operating
2 Floor Standing Type Air Conditioner
Safety Precautions....................................................................................................................................3
Preface ...................................................................................................................................................... 7
Dimensions..............................................................................................................................................11
Refrigerant Cycle Diagram .....................................................................................................................12
Wiring Diagram........................................................................................................................................13
Operation Details ....................................................................................................................................15
Installation ...............................................................................................................................................21
Operating .................................................................................................................................................37
3-Way Valve..............................................................................................................................................40
Troubleshootig Guide .............................................................................................................................48
Electronic Control Device ......................................................................................................................63
Schematic Diagram.................................................................................................................................66
Exploded View & Replacement Parts List ............................................................................................68
Floor Standing Type Air Conditioner Service Manual
TABLE OF CONTENTS
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