Daikin RXA42A2V1B Installation Manual

Also see for RXA42A2V1B: Service manual

Contents

Daikin RXA42A2V1B Installation Manual Manual pdf 11 page image

5 CommissioningInstallation manual11RXA42+50A2V1BR32 split series3P517827-2 – 2017.12fbaedca Gas pipeb Gas pipe insulationc Interconnection cabled Liquid pipee Liquid pipe insulationf Finishing tape2 Install the service cover.4.7 About the compressorDANGER: RISK OF EXPLOSION▪ Use a pipe cutter to remove the compressor.▪ Do NOT use the brazing torch.▪ Use approved refrigerants and lubricants only.DANGER: RISK OF BURNINGDo NOT touch the compressor with bare hands.5 CommissioningNOTICENEVER operate the unit without thermistors and/orpressure sensors/switches. Burning of the compressormight result.5.1 Checklist before commissioningDo NOT operate the system before the following checks are OK:The indoor unit is properly mounted.The outdoor unit is properly mounted.The system is properly earthed and the earth terminalsare tightened.The fuses or locally installed protection devices areinstalled according to this document, and have NOT beenbypassed.The power supply voltage matches the voltage on theidentification label of the unit.There are NO loose connections or damaged electricalcomponents in the switch box.There are NO damaged components or squeezedpipes on the inside of the indoor and outdoor units.There are NO refrigerant leaks.The refrigerant pipes (gas and liquid) are thermallyinsulated.The correct pipe size is installed and the pipes areproperly insulated.The stop valves (gas and liquid) on the outdoor unit arefully open.The following field wiring has been carried out accordingto this document and the applicable legislation betweenthe outdoor unit and the indoor unit.DrainageMake sure drainage flows smoothly.Possible consequence: Condensate water might drip.The indoor unit receives the signals of the user interface.The specified wires are used for the interconnectioncable.5.2 Checklist during commissioningTo perform an air purge.To perform a test run.5.3 To perform a test runPrerequisite: Power supply MUST be in the specified range.Prerequisite: Test run may be performed done in cooling or heatingmode.Prerequisite: Test run should be performed in accordance with theoperation manual of the indoor unit to make sure that all functionsand parts are working properly.1 In cooling mode, select the lowest programmable temperature.In heating mode, select the highest programmable temperature.Test run can be disabled if necessary.2 When the test run is finished, set the temperature to a normallevel. In cooling mode: 26~28°C, in heating mode: 20~24°C.3 The system stops operating 3 minutes after turning the unitOFF.INFORMATION▪ Even if the unit is turned OFF, it consumes electricity.▪ When the power turns back on after a power break, thepreviously selected mode will be resumed.6 Configuration6.1 To set the facility modeWhen cutting jumper J6 on the PCB, the operation range will expandto –15°C. The facility mode will stop if the outdoor temperature dropsbelow –20°C and resume when the temperature rises again.To cut jumper J61 Remove the top plate of the outdoor unit.2 Remove the front plate.3 Remove the drip proof cover.4 Cut jumper J6 on the outdoor unit PCB.adbcJ6J4J9J5J7J8J12a Front plateb Top platec Drip proof coverd Jumpers