LG LS-S1260HL Service Manual ▷ View online
7. Heating Mode Operation
The unit will operate according to the setting by the remote controller and the operation diagram is shown as
following.
following.
8. Hot-Start Control
ƒU
The indoor fan stops until the evaporator piping temperature will be reached at 28
¡
. (BY TEMPERATURE)
ƒU
The operation diagram is as following.
17
Intake Air temp.
Setting temp.+3
¡
(Compressor OFF)
Setting temp.
(Compressor ON)
(Compressor ON)
INDOOR FAN
Low
OFF Low
Low
OFF
COMPRESSOR
ON
OFF
ON
OFF
ƒU
A point; The indoor pipe temperature to be 35°C
The indoor fan operates minimum 10sec. even if falls lower than 35°C
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B point; The indoor pipe temperature to be 35°C
The indoor fan operates minimum 10sec. even if falls lower than 35°C
Selecting fan
speed
speed
HOT
START
START
OFF
Selecting fan
speed
minimum
10sec.
A
A
minimum
10sec.
minimum
10sec.
B
¢”
¢”
PIPING
TEMP 28°C
60 sec.
COMPRESSOR
INDOOR
FAN
LOW
OFF
SELECTING
FAN SPEED
FAN SPEED
ON
(HOT-START BY TEMPERATURE)
9. Deice Control
ƒU
Deicing operation is controlled by timer and sensing the indoor pipe temperature.
ƒU
Deicing operation checks the indoor pipe temperature and Intake-air temperature at 25 minutes and 60 minutes
on starting of heating operation, and discriminates by temperature difference.
on starting of heating operation, and discriminates by temperature difference.
ƒU
When the heating operation passed 25 minutes, the temperature (
¡
T1=TE1–TR1) is checked and memorized
with checking the indoor pipe temperture (TE1) and the indoor Intake-air temperature (TR1).
ƒU
When the heating operation passed 60 minutes, deicing operation checks the indoor pipe temperature (TE2)
and the indoor Intake-air temperature (TR2), and checks the temperature difference (
and the indoor Intake-air temperature (TR2), and checks the temperature difference (
¡
T2=TE2–TR2) and the
temperature difference
¡
Td(=
¡
T1–
¡
T2) of
¡
T1,
¡
T2.
If the temperature difference (
¡
Td) become more than the option temperature, deicing operation starts.
ƒU
At that time, deicing operation time is decided.
ƒU
The deicing operation time stops after deicing operation started.
ƒU
If deicing operation start, above heating operation time is reset, so if deicing operation is finished, the heating
operation time is recounted.
operation time is recounted.
ƒU
The deicinig time and the operation diagram are as following.
18
60 minutes
Heating
25 MINS
Heating
TE1
TR1
TE2
TR2
TR1
TE1
Heating
25 MINS
Deicing
Pipe Temp.
Intake Air
Temp.
T1
T2
T1
TEMP °C
INDOOR FAN
OUTDOOR FAN
COMPRESSOR
4WAY VALVE
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON After HOT-START finished
ON
ON
ON
Td (=T1– T2)
Over 3.5°C
3.0~3.5°C
2.5~3.0°C
2.0~2.5°C
below 2.0°C
Deicing Time
12mins
11mins
10mins
9mins
Heating Operation
10. Soft Dry Operation.
ƒU
During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 1
¡
, the compres-
sor OFF temperature is the setting temperature minus 0.5
¡
ƒU
When the room temperature rises over the compressor ON temperature, the operation mode is switched to the
cooling mode.
cooling mode.
ƒU
When the room temperature falls between the compressor ON temperature and OFF temperature, the opera-
tion mode is switched to the Soft Dry Operation.
In this temperature range, 10min. Dry Operation, 5.5min operation OFF, 1.5min. only fan operation repeat. Dur-
ing 10min Dry operation, even if the room temperature falls below compressor OFF temperature, 10min(MAX)
Compressor ON from starting of Dry operation which includes 4 min. Compressor ON operation below the
comperssor OFF temperature.
tion mode is switched to the Soft Dry Operation.
In this temperature range, 10min. Dry Operation, 5.5min operation OFF, 1.5min. only fan operation repeat. Dur-
ing 10min Dry operation, even if the room temperature falls below compressor OFF temperature, 10min(MAX)
Compressor ON from starting of Dry operation which includes 4 min. Compressor ON operation below the
comperssor OFF temperature.
ƒU
In micom dehumidify mode, control of fan speed is as following.
11. Forced operation
ƒU
If you lose wireless remote controller, you can operate the unit with forced operation switch.
ƒU
The standand conditions are as following.
19
ROOM TEMP.
SETTING TEMP.+1°C
(COMP. ON)
SETTING TEMP.
(COMP. OFF)
INDOOR FAN
OFF
LOW
LOW
OFF
LOW
LOW
COMPRESSOR
ON
OFF
ON
OFF
ON
Selecting
fan speed
fan speed
2 minutes
5.5 minutes
maximum
4 minutes
4 minutes
1 minutes
1.5 minutes
10 minutes
maximum
10minutes
Operation
Cooling
Dry operation
Heat pump Model
Room Temp
¡ˆ
24°C
21°C
¡´
Room Temp
£…
24°C
Room Temp
£…
21°C
Operation Mode
Cooling
Cooling
Soft Dry
Heating
FAN Speed
High
High
Low
High
Setting Temp.
24°C
24°C
Room Temp.
22°C
Cooling Model
¢”
¢”
Display Function
• Cooling, Soft Dry, Heating
• Timer Mode
• Sleep Mode
• Hot-start, Deice
Self-diagnosis Function
1. Protection of the evaporator pipe from frosting
If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
2. Thermistor Cut Off or Short
Cut Off/Short : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Deice Indicator
: Heating Model only
Compressor On Indicator
: Cooling Model only
OUTDOOR
20
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