MovinCool Office Pro W20 Service Manual User Manual
Page 41
Repair Section
41
Show LCD and LED
all on mode
Press HI/LO and
buttons simultaneously for 3 seconds to check LCD
segments and LED display.
After 5 seconds, display goes back to normal operation mode.
Key lock mode (LCD
displays “LOCKED”.)
Press ENTER and SET CLOCK buttons simultaneously for 5 seconds to
lock all buttons on the controller panel (except keypad lock and unlock
operations).
To unlock, press and hold ENTER and SET CLOCK buttons
simultaneously for 5 seconds again.
Indication of model
name
Press UP and DOWN buttons simultaneously for 5 seconds to display a
model name.
After 5 seconds, display goes back to normal operation mode.
Detection of unit stop
signal from fire alarm
system
Signal is input from the fire alarm.
(Unit stops, output signal (J106) turns on and buzzer sounds.)
Indication of service
code
Press ON/OFF and
buttons simultaneously for 3 seconds. Indication
contents is as follows.
To exit service code, press ON/OFF button.
Activation of high
pressure switch
When high pressure switch (connected to J104) is activated (=J104 input
turns to open) for the first 2 times in 24 hours, LCD indicates “HP” but
goes away as the high pressure switch resets. If the high pressure switch
is activated 3 times in 24 hours, LCD indicates blinking “HP” and signal
output (J106) turns on. When the high pressure switch is activated 10
times in 24 hours, LCD indicates “FAIL HP” and signal output (J106) turns
on, then buzzer sounds.
LCD Display
Description
Condition
START
STOP
CLOCK
MO TU WE TH FR
AM
F
C
F
C
PROGRAM
LOCKED
ON
PM
SA SU
SET TEMP
ROOM TEMP
HI
LO
ON
OFF
COOL
FAN
TU
AM
F
LOCKED
SET TEMP
HI
ON
COOL
FAN
LCD
DF
FZ
OD
Description
Value
Defrost status
Evap. out pipe
temperature
26⇔109F
(“26”⇔“X9”)
Outdoor
temperature
0 (“00”)
START
STOP
CLOCK
MO
TU
WE TH FR
AM
F
C
F
C
PROGRAM
LOCKED
ON
PM
SR SU
SET TEMP
ROOM TEMP
HI
LO
ON
OFF
COOL
FAN
START
STOP
CLOCK
MO TU WE TH FR
AM
F
C
F
C
PROGRAM
LOCKED
ON
PM
SR SU
SET TEMP
ROOM TEMP
HI
LO
ON
OFF
COOL
FAN