Daikin RXYSQ4M7V3B Installation Manual

Also see for RXYSQ4M7V3B: Operation manual

Contents

RXYSQ4~6M7V3BVRVII-S system air conditioner4PW17806-1CInstallation manual17Error codes on the remote controller:11.5. Checks in normal operationSet the master unit (= indoor unit having the right to select thecooling/heating operation mode).In case of wired remote controllers■ After the check operation, "CHANGEOVER UNDER CONTROL"is blinking in all connected remote controllers.■ Select an indoor unit to be used as the master unit inaccordance with the request from the customer.(It is recommended to select an indoor unit which will be usedmost often as the master unit.)■ Press the operation mode selector button in the remotecontroller of the indoor unit selected as the master unit.■ In that remote controller, "CHANGEOVER UNDER CONTROL"disappears. That remote controller will control changeover of thecooling/heating operation mode.■ In other remote controllers, "CHANGEOVER UNDERCONTROL" lights up.In case of wireless remote controllers■ After the check operation, the timer lamp is blinking in allconnected indoor units.■ Select an indoor unit to be used as the master unit inaccordance with the request from the customer.(It is recommended to select an indoor unit which will be usedmost often as the master unit.)■ Press the operation selector mode button in the remotecontroller of the indoor unit selected as the master unit. A "peep"sound is issued, and the timer lamp turns off in all indoor units.■ That indoor unit will control changeover of the cooling/heatingoperation mode.For the details, refer to the instruction manual supplied togetherwith the indoor unit.11.6. Temperature adjustment operation confirmationAfter the test run is over, operate the unit normally. (Heating is notpossible if the outdoor temperature is 24°C or higher.)■ Make sure the indoor and outdoor units are operating normally(If a knocking sound can be heard in the liquid compression ofthe compressor, stop the unit immediately and then energize theheater for a sufficient length of time before restarting theoperation.)■ Run each indoor unit one at a time and make sure thecorresponding outdoor unit is also running.■ Check to see if cold (or hot) air is coming out of the indoor unit.■ Press the fan direction and fan strength buttons on the indoorunit to see if they operate properly.12. SERVICE MODE OPERATIONAfter turning on the power supply, the unit can not be started untill theH2P initialisation led, indicating that the unit stil is under preparation,goes off (maximum 12 minutes).Vacuuming methodAt the first installation, this vacuuming is not required. It is requiredonly for repair purposes.1 When the unit is at standstill and under the setting mode 2, setthe required function B (refrigerant recovery operation/vacuuming operation) to (ON).- After this is set, do not reset the setting mode 2 until thevacuuming is finished.- The H1P led is on and the remote controller indicates(test operation) and (external control) and theoperation will be prohibited.2 Vacuum the system with a vacuum pump.3 Press the button and reset the setting mode 2.Installation errorMalfunctioncode Remedial actionThe stop valve ofan outdoor unit isleft closed.E3Open the stop valve on both the gasand liquid side.RefrigerantoverchargeRecalculate the required amount ofrefrigerant from the piping length andcorrect the refrigerant charge level byrecovering any excessive refrigerantwith a refrigerant recovery machine.The stop valve ofan outdoor unit isleft closed.E4F3Open the stop valve on both the gasand liquid side.The operationmode on theremote controllerwas changedbefore the checkrun.Set the operating mode on all indoorunit remote controllers to "cooling".InsufficientrefrigerantCheck if the additional refrigerantcharge has been finished correctly.Recalculate the required amount ofrefrigerant from the piping length andadd an adequate amount of refrigerant.RefrigerantoverchargeF6Recalculate the required amount ofrefrigerant from the piping length andcorrect the refrigerant charge level byrecovering any excessive refrigerantwith a refrigerant recovery machine.The checkoperation is notperformed.U3Perform the check operation.No power issupplied to theoutdoor unit.U4Check if the power wiring for theoutdoor unit is connected correctly.Improper type ofindoor units areconnected.UACheck the type of indoor units that arecurrently connected. If they are notproper, replace them with proper ones.The stop valve ofan outdoor unit isleft closed.UFOpen the stop valve on both the gasand liquid side.The piping andwiring of thespecified indoorunit are notconnectedcorrectly to theoutdoor unit.Confirm that the piping and wiring of thespecified indoor unit are connectedcorrectly to the outdoor unit.The operationmode on theremote controllerwas changedbefore the checkrun.Set the operating mode on all indoorunit remote controllers to "cooling".Incorrectinterconnectionsbetween units. UHConnect correctly the interconnectionsbetween units to the F1 and F2 (TOIN/D UNIT) terminals on the PC board(A1P) in the outdoor unit.Cautions for normal operation check■ Once stopping, the compressor will not restart inabout 5 minutes even if the Run/Stop button of anindoor unit in the same system is pressed.■ When the system operation is stopped by the remotecontroller, the outdoor units may continue operatingfor further 5 minutes at maximum.■ After te test run, when handling the unit over to thecustomer, make sure the electric box lid, the servicelid and the unit casing are all attached propperly.ONBS1 MODE

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