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Appendix
This function checks amount of refrigerant in the system through refrigerant amount detection operation
Start
Press the K2 tact switch 5 times
Normal / Excessive / Shortage
Check the result with the function
of the Refrigerant Check
Judgment not available
Connect S-Net Pro
Checking the amount of
refrigerant automatically
Enter the operation in S-Net pro
End
~
check
the result on display
after the operation
CAUTION
• If the temperature is out of the guaranteed range below, exact result will not be obtained.
– Indoor: 20~32 °C
– Outdoor: 5~43 °C
• If the operation cycle is not stable, the operation of refrigerant amount check may be forcibly finished.
• Accuracy of the result may decrease if the product has not been operated for a long period of time or Heat mode has been operated
before running the function of refrigerant amount check. Therefore, use the function of refrigerant amount check after operating the
product in Cool mode for at least 30 minutes.
• Product may trigger system protection operation depending on the installation environment. In this case, the result of refrigerant
amount check may not be accurate.
Actions to take for the check result
• Excessive amount of refrigerant
– Discharge 10% of total amount of refrigerant and restart the refrigerant amount check.
• Insufficient amount of refrigerant
– Add 10% of the total amount of refrigerant and restart the refrigerant amount check.
• Judgment not available
– Check if the function of refrigerant amount check is executed within the guaranteed temperature range. Run trial operation to
check if there are other problems on the system.
Automatic refrigerant amount detection function
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