LG GR-B207WVQ.CSWQAGE - Frost Removal Function

2-7. Frost removal function
1. Frost removal is performed whenever total operation time of compressor becomes 7 ~ 7.5 hour.
2. In providing initial power (or returning power failure), frost removal starts whenever total operation time of compressor
becomes 4 ~ 4.5 hour.
3. Frost removal is completed if temperature of a frost removal sensor becomes more than 5°C after starting frost removal.
Poor frost removal is not displaced if it does not arrive at 5°C even if two hours have passed after starting frost removal.
4. No removal is done if frost removal sensor becomes poor (snapping or short-circuit).
2-8. Sequential operation of built-in product
Built-in products such as compressor, frost removal heater, freezing room fan, Cooling Fan and step motor damper are
sequentially operated as follows for preventing noise and part damage occurred due to simultaneous operation of a lot of
parts in applying initial power and completing test.
MICOM FUNCTION
- 10-
Function Load Operation Sequence Remark
r
ewo
plait
inIg
niylpp
anI
E
DOM
T
SET
When temperature
of
a frost removal
sensor become
s
more than 4
5°C
(In purchase,
movement
)
If error occurs
during operation
,
initial operation i
s
not done
.
If pressing switc
h
once more in th
e
test mode 2 o
r
temperature of
a
frost remova
l
sensor is mor
e
than
5°C, it
immediatel
y
returns to the tes
t
mode for initia
l
operatio
n
(COMP operate
s
after 7 minutes).
When
temperature of a
frost removal
sensor becomes
less than 45
°C
(In power failure,
service)
Test mode 1
(Compulsory
function
)
Test mode 1
(Compulsory
function
)
Test mode 2
(Compulsory fros
t
removal)
POWER
ON
COMP
ON
COMP
ON
F-FAN
&
C-FAN
ON
F-FAN
&
C-FAN
ON
F-FAN
&
C-FAN
ON
F-FAN
&
C-FAN
OFF
STEP
MOTOR
DAMPER
ON
STEP
MOTOR
DAMPER
ON
STEP
MOTOR
DAMPER
OPEN
STEP
MOTOR
DAMPER
CLOSE
HOME
BAR
HEATER
ON
POWER
ON
FROST
REMOVAL
HEATER
ON
HOME
BAR/
PIPE
HEATER
OFF
HOME
BAR/
PIPE
HEATER
ON
TEST
S/W
(Press
Once)
COMP
ON
TEST
S/W
(Press
3 times)
0.5
sec.
0.3
sec.
0.3
sec.
0.3
sec.
0.5
sec.
8
sec.
0.3
sec.
5
sec.
FROST
REMOVAL
HEATER
OFF
FROST
REMOVAL
HEATER
ON
27
sec.
0.3
sec.
0.3
sec.
0.3
sec.
0.3
sec.
0.3
sec.
0.3
sec.
0.3
sec.
5.6
sec.
OTHER
LOAD
OFF
F-FAN
&
C-FAN
ON
F-FAN
&
C-FAN
OFF
STEP
MOTOR
DAMPER
OPEN
TEST
S/W
(Press
2 times)
COMP
0.3
sec.
0.3
sec.
0.3
sec.
OFF