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12.4.12  Evaluation of the Performance 
  Operate the unit at cooling/heating operation 
mode for fifteen minutes or more. 
  Measure the temperature of the intake and 
discharge air. 
  Ensure the difference between the intake 
temperature and the discharge is more than 8°C 
during Cooling operation or more than 14°C 
during Heating operation. 
Note: 
  During extremely cold winter, turn on the power 
supply and standby the unit for at least 15 minutes 
before test run. Allow sufficient time to warm up 
refrigerant and prevent wrong error code 
judgement. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Discharge air