65
Service
Check
Button operation
[1]
Refrigerant leak check
Refrigerant leakage is detected after a long time.
To enable this function, the refrigerant volume must be saved (initial learning) after installation. Always operate this function in
the following manner after installation.
• Always performtest run before using this function, and confirm that the air conditioner operates normally.
• To accurately detect refrigerant leaks, set the wind speed to strong, and execute this operation.
* "Refrigerant leak check" is valid only with models which support the refrigerant leak check function.
F1
F2
F3
F4
Check menu
Cursor
Service menu:
Error history
Refrigerant volume check
Refrigerant leak check
Smooth maintenance
Request code
P
Service
Mr.Slim
Only
Main
F1
F2
F3
F4
Refrigerant leak check
Begin:
Start refrigerant leak check
Approx. 20minutes
F1
F2
F3
F4
Refrigerant leak check
Add
Add
Check menu:
Page
Cond
Cond
OK
OK
OK
NG
–
–
OK
NG
Select "Refrigerant leak check" with the
F1
or
F2
button, and press the
button.
Select "Check" with the
F1
or
F2
button, and press the
button.
[2]
[3]
Select "Service" from the Main menu (refer to page 17), and press the
button.
Stable mode will start.
Press the
button, stable mode will start.
*Stable mode will take approx. 20 minutes.
The operation data will appear.
The following value is the reference for the refrigerant volume check. If the refrig-
erant is leaking, "NG" will appear.
The refrigerant volume check reference value can be changed with the func-
tion selection.
Default value RP71 – :
80%
– RP50 :
70%
<Resetting the initial learning data>
If the unit has been relocated or if refrigerant has been additionally charged, the initial learning data must be reset and learn-
ing performed again.
How to reset the data:
1. Turn the main power OFF.
2. Attach the short-circuit pin for the emergency operation connector (CN31) on the outdoor controller board to the ON side.
3. Turn ON the test run switch (SW-1) on the outdoor controller board.
. The data will be reset when the main power is turned ON.
5. Turn the main power OFF.
6. Turn OFF the test run switch (SW-1).
7. Return the short-circuit pin for the emergency operation connector (CN31) to the OFF side.
* Under the following conditions, it may not be possible to carry out stable operation or accurately detect refrigerant leaks.
• When the outdoor intake temperature is 0°C or higher, or when the indoor intake temperature is 23°C or less.
• When the indoor fan speed is not set to strong.
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