Daikin RXYQ72TTJU Installation Manual

Also see for RXYQ120TTJU: Operation manual Engineering data

Contents

Daikin RXYQ72TTJU Installation Manual Manual pdf 42 page image

393P362438-1B E nglish• The test operation is automatically carried out, the outdoor unitdisplay will indicate 01 and the indication Test operation andUnder centralized control will display on the user interface ofindoor units.Steps during the automatic system test run procedure:- 01: control before start up (pressure equalization)- 02: cooling start up control- 03: cooling stable condition- 04: communication check- 05: stop valve check- 06: pipe length check- 07: refrigerant amount check- 08: detailed refrigerant situation check- 09: pump down operation- 10: unit stop• During the test operation, it is not possible to stop the unitoperation from a user interface. To abort the operation, pressBS3. The unit will stop after ±30 seconds.5 Check the test operation results on the outdoor unit segmentdisplay.- Normal completion: no indication on the segment display(idle)- Abnormal completion: indication of malfunction code on thesegment displayRefer to 15.4.3. Correcting after abnormal completion of thetest operation to take actions for correcting the abnormality.When the test operation is fully completed, normal operationwill be possible after 5 minutes.15 4 3 Correcting after abnormal completion of the testoperationThe test operation is only completed if there is no malfunction codedisplayed on the user interface or outdoor unit segment display. Incase of a displayed malfunction code, perform correcting actions asexplained in the malfunction code table. Carry out the test operationagain and confirm that the abnormality is properly corrected.INFORMATIONRefer to the installation manual of the indoor unit for other detailedmalfunction codes related to indoor units.15 5 Malfunction code listIn case of a displayed malfunction code, perform correcting actions asexplained in the malfunction code table.After correcting the abnormality, press BS3 to reset the malfunctioncode and retry operation.The malfunction code which is displayed on the outdoor unit will indi-cate a main malfunction code and a sub code. The sub code indicatesmore detailed information about the malfunction code. The malfunc-tion code will be displayed intermittent.Example:Main code Sub codeWith an interval of 1 second, the display will switch between maincode and sub code.Malfunction codeContents SolutionMaincodeSub codeMaster/sub 1/sub 2E3 01/03/05 High pressure switch was activated (S1PH, S2PH) –A1P (X3A; X4A).Check stop valve situation or abnormalities in (field)piping or airflow over air cooled coil.02/04/06 • Refrigerant overcharge• Stop valve closed• Check refrigerant amount+recharge unit.• Open stop valves.13/14/15 Stop valve closed (liquid) Open liquid stop valve.18 • Refrigerant overcharge• Stop valve closed• Check refrigerant amount+recharge unit.• Open stop valves.E4 01/02/03 Low pressure malfunction:• Stop valve closed• Refrigerant shortage• Indoor unit malfunction• Open stop valves.• Check refrigerant amount+recharge unit.• Check the user interface’s display or Transmissionwiring between the outdoor unit and the indoor unit.E9 01/05/08 Electronic expansion valve malfunction (subcool)(Y2E) – A1P (X21A)Check connection on printed circuit board or actuator.04/07/10 Electronic expansion valve malfunction (main) (Y1E)– A1P (X23A)Check connection on printed circuit board or actuator.F3 01/03/05 Discharge temperature too high (R21T/R22T):• Stop valve closed• Refrigerant shortage• Open stop valves.• Check refrigerant amount+recharge unit.20/21/22 Compressor casing temperature too high (R8T):• Stop valve closed• Refrigerant shortage• Open stop valves.• Check refrigerant amount+recharge unit.F6 02 • Refrigerant overcharge• Stop valve closed• Check refrigerant amount+recharge unit.• Open stop valves.H9 01/02/03 Ambient temperature sensor malfunction (R1T) – A1P(X18A)Check connection on printed circuit board or actuator.