Table of Contents
Advertisement
MICOM FUNCTION
2-7. Electric Equipment Sequential Operation
Electric equipment such as compressor, defrost heater, cooling fan, step motor damper, etc. operates in the following
sequence when power is initially applied and test is completed in order to reduce noise and parts damage.
Function
Defrost sensor
temperature is
above 10 °C
(purchased or
house-moving)
Defrost sensor
temperature is
below 10 °C
(power cut or
service)
Test Mode 1
(Forced Start)
Test Mode 2
(Check Freezer
fan )
Test Mode 3
(Forced defrost)
0.5
POWER
COMP
sec.
ON
ON
0.5
POWER
DEFROST
sec.
HEATER
ON
ON
0.3
5
WATER
WATER
sec.
sec.
TANK
TANK
HEATER
HEATER
ON
OFF
TEST
OTHER
S/W
LOADS
(Press
OFF
Once)
TEST
COMP
S/W
(Press
OFF
Twice)
TEST
S/W
(Press
Three
Times)
Operation Sequence
0.3
0.3
FAN 1400
sec.
sec.
(High Speed
Operation)
ON
8
0.3
DEFROST
sec.
sec.
HEATER
OFF
0.3
27
COMP
sec.
sec.
ON
0.3
0.3
COMP
sec.
sec.
ON
0.3
0.3
FAN 1400
sec.
sec.
(High Speed
Operation)
OFF
0.3
FAN 1170
DEFROST
sec.
(Standard
HEATER
Operation)
ON
OFF
- 27 -
0.3
STEP
HOME
sec.
BAR
MOTOR
HEATER
DAMPER
ON
ON
5
HOME
HOME
sec.
BAR
BAR
HEATER
HEATER
ON
OFF
0.3
STEP
FAN 1170
sec.
(Standard
MOTOR
Operation)
DAMPER
ON
ON
0.3
STEP
FAN 1400
sec.
MOTOR
(High Speed
Operation)
DAMPER
ON
ON
0.3
STEP
FAN 1170
sec.
MOTOR
(Standard
Operation)
DAMPER
ON
OPEN
0.3
STEP
sec.
MOTOR
DAMPER
CLOSE
Remarks
If there is any error in
functions, initial
starting does not
work.
If switch is pressed
one more or defrost
sensor temperature
is above +5 °C, it
returns to test mode
and restarts.
(compressor shall
operate after 7
minutes)
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
