26
ENGLISH
Sensor Checking Function (U3 Chassis, 2Fan
Model)
Sensor checking function judges whether the current temperature of
indoor and outdoor unit sensors is right or not. It checks 3 indoor tem-
perature sensors, 9 outdoor temperature sensors, 2 outdoor pressure
sensors.
It is used for judging sensor abnormality.
Note 2)
Sensor Check Error Code Display
Error display during sensor inspection process is composed of 3 stages
as shown below, and is proceeded by repeating these stages
Step 1 : Display of error existence : 309 or 319
- 309 : Inspect sensors of outdoor unit
- 319 : Inspect sensors of indoor unit
Step 2: Display of error location
- In case of 309 (outdoor unit sensors)
2 digits on the left among 7 segments – Sensor Type (Table1)
1 digit on the right among 7 segments – Outdoor Unit Number
- In case of 319 (indoor unit sensors)
2 digits on the left among 7 segments – Indoor Unit Number
(Same as LGMV (automatic
address configuration) indoor
unit number)
1 Digit on the right among 7 segments – Sensor Type (Table 2)
Step 3: Turn Off
h
1 error is displayed through 3 stages above and maximum of 5 errors
are displayed.
Displaying error content
Indoor unit error display
- 1st and 2nd number represents indoor unit number.
Indoor unit number follows auto addressing number.
- Last number represents sensor.
h
Indoor unit number follows Auto addressing number.
Displaying outdoor unit error
- 1
st
and 2
nd
number represents error content(code).
- Last number represents outdoor unit number.
Wait for 3 min. after power
reset
Note 3)
Start
Main PCB
SW01S
Set the DIP S/W according to the function
Sensor Checking
➠
Refrigerant Auto Charging : 1,2,7 ON
Sensor Checking
➠
Refrigerant Checking : 1,2,7,14 ON
Main PCB
SW01B
SW02B
Press the black button for 2 s on main PCB.
Main PCB
SW01V
Indoor/Outdoor units operate with
air circulation mode
Refrigerant Auto Charging
Press the black button
until '508' is displayed
Judging sensor
normality
Error Display
Refrigerant
Auto Charging
Main pcb
LED
Note 4)
Press the black button on the main PCB for 2 s
Main PCB
SW01V
Press the black button for 2 s after turning
off all of DIP S/W.
Refrigerant Checking
Press the black button
until '608' is displayed.
Refrigerant
Checking
Don’t Perform Sensor Checking
No
Yes
Yes
No
Completed.
Note
1. Sensor checking function is used with Refrigerant
Checking and Refrigerant Auto Charging.
2. Check abnormal sensor
3. It is displayed at the LED on the main PCB at each step.
4. Refer to the next page for sensor error code part
Would you perform
the Sensor
checking?
CAUTION
• Confirm auto addressing has been performed (Check installed num-
ber of IDU).
• The error can be displayed even if the sensor is normal according to
installation and temperature condition.
If error occurs, check the sensor and judge abnormality.
!
CAUTION
• Up to 5 number of errors is displayed continuously and repeatedly.
In case 5 number of errors occurs, again perform sensor checking
after solving errors.
• IDU in which error occurred operates air circulation mode.
!
1
Pipe inlet temperature sensor
2
Pipe outlet temperature sensor
3
Air temperature sensor
1
2
4
6
7
9
10
11
Outdoor Air Temperature
Heat Exchanger 1
Inverter Compressor Discharge Temperature
Suction Temperature
Liquid Pipe Temperature
SC pipe out
High Pressure Sensor
Low Pressure Sensor
ex) Indoor unit No. 2 pipe inlet temperature sensor error
ex) Outdoor unit liquid pipe temperature sensor error
ex) Indoor unit No.2 pipe inlet temperature sensor error and outdoor
unit suction temperature sensor error
Summary of Contents for ARUN40GS2A
Page 35: ......
