Daikin Stylish Series Service Manual

Contents

Daikin Stylish Series Service Manual Manual pdf 34 page image

2 ComponentsService manual34(C)(F)TXA15~50A2V1B(W)(S)(T) + RXA42+50A2V1B +RXA20~35A2V1BSplit Stylish R32ESIE18-03 – 2018.09aa Intelligent thermal sensor assembly3 To install the intelligent thermal sensor assembly, see"2.9.2 Repair procedures" on page 33.To install the intelligent thermal sensor1 Click the intelligent thermal sensor assembly on the indoor unit.aa Intelligent thermal sensor assembly2 Route the intelligent thermal sensor harness inside the switchbox, along the harness retainers.3 Connect the intelligent thermal sensor harness to theappropriate connector on the indoor unit PCB.WARNINGWhen reconnecting a connector to the PCB, do NOT applyforce, as this may damage the connector or connector pinsof the PCB.Is the problem solved? ActionYes No further actions required.No Return to the troubleshooting ofthe specific error and continuewith the next procedure.2.10 Inverter PCB2.10.1 Checking proceduresAs the inverter PCB is integrated in the main PCB of the unit, see"2.11 Main PCB" on page 35 for the other check procedures.To perform an electrical check of the inverter PCBPrerequisite: Turn OFF the unit via the user interface.Prerequisite: Turn OFF the respective circuit breaker.Prerequisite: Remove the required plate work, see "2.13 Platework" on page 40.1 Open the compressor insulation.2 Remove the cover of the compressor wire terminals.3 Measure the voltage between the pins 7‑4 of the connectorS70. Wait until the voltage drops below 10 V DC.WARNINGThe smoothing capacitor MUST discharge below 10 V DCbefore disconnecting the Faston connectors from thecompressor wiring terminals. Risk of electrocution.4 Disconnect the Faston connectors from the compressor wireterminals U, V and W.INFORMATIONNote the position of the Faston connectors on thecompressor wire terminals to allow correct connectionduring installation.5 Connect the Faston connectors to the Inverter Analyzer (SPPnumber 1368521).6 Turn ON the power of the unit.7 Locate the switch SW1 on the Inverter Analyzer and press for5 seconds to activate the inverter test.aa SW18 All LED’s on the Inverter Analyzer must lit.