Daikin RKS20LVMA, Service Manual Removal Procedure

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 2 0 2 5 3 5 kW Class 9000 12000 Btu h Class Outdoor Unit Inverter Pair Type Si001155EA...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only zHeat Pump RKS20LVMA RXS09LVJU RKS25LVMA RXS12LVJU RKS35LVMA RXS20LVMA RXS25LVMA RXS35LVMA RXS25LAVMA RXS25LBVMA RXS35LBVMA RXS25RV1A...

Page 3: ...s Fan Motor 2 2 Electrical Box 10 3 PCBs 13 4 Reactor Partition Plate 20 5 Sound Blankets 21 6 Four Way Valve 23 7 Compressor 26 Note The illustrations may be slightly different depending on the model...

Page 4: ...re Points 1 Appearance features Be careful not to cut your finger on the fins of the outdoor heat exchanger 2 Remove the outer panels The stop valve cover is united with the shield plate When reassemb...

Page 5: ...3 screws and lift the top panel 4 Remove the drip proof plate 5 Remove the 4 screws and then the discharge grille When reassembling make sure the 4 hooks are securely fastened Step Procedure Points To...

Page 6: ...nt panel 7 Unfasten the hooks and pull out the front panel When reassembling make sure the 4 hooks are securely fastened 3 Remove the fan motor Nut size M6 1 Remove the nut of the outdoor fan Step Pro...

Page 7: ...he outdoor fan with the D cut section of the motor shaft 3 Release the outdoor temperature thermistor 4 Disconnect the connector S70 S70 fan motor 5 Release the fan motor lead wire from the hook Step...

Page 8: ...otor Si001155EA 6 Removal Procedure 6 Remove the screw 7 Remove the fan motor fixing frame When reassembling fit the 2 lower hooks into the bottom frame Step Procedure Points Fan motor fixing frame R1...

Page 9: ...ight side panel For U S models 1 Remove the screws and detach the connecting wires from the terminal block 2 Loosen the lock nuts and detach the connecting wires from the conduit holes 1 2 Remove the...

Page 10: ...ve the 2 screws on the rear side 4 Remove the 4 screws on the right side panel 5 Remove the screw 6 Unfasten the hook on the rear side When reassembling make sure the hook is securely fastened Step Pr...

Page 11: ...Fan Motor Removal Procedure 9 7 Lift up the right side panel and remove it When reassembling make sure the hook is securely fastened 8 Lift up the guard net and remove it Step Procedure Points Hook R...

Page 12: ...Disconnect the connector S80 S80 four way valve coil The cooling only models do not have the harness for S80 2 Disconnect the connector S20 S20 electronic expansion valve coil 3 Disconnect the 2 conne...

Page 13: ...onnect the connectors in the following order 1 S40 2 relay connector for compressor 3 reactor 4 S20 5 S70 6 S80 6 Cut the clamp 7 Pull out the outdoor heat exchanger thermistor Be careful not to lose...

Page 14: ...oval Procedure 8 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 9 Lift and remove the electrical box Step Procedure Points Discharge pipe thermistor R11849 R1...

Page 15: ...ts 1 Remove the main PCB and the forced operation button PCB You can remove the main PCB when you disconnect the lead wires on the terminal block without removing the electrical box 1 Layout of the ma...

Page 16: ...operation button PCB Disconnect the connector S110 Be careful of the sharp protrusion at the back of the forced operation button PCB S110 main PCB 6 Cut the clamp 7 Release the harness Step Procedure...

Page 17: ...2 clamps 9 Disconnect the connector S10 S10 filter PCB 10 Disconnect the connector S100 S100 forced operation button PCB 11 Disconnect the connectors HL3 and HN3 HL3 HN3 filter PCB Step Procedure Poin...

Page 18: ...Bs Si001155EA 16 Removal Procedure 12 Release the harnesses from the slit 13 Release the harness for the outdoor temperature thermistor 14 Remove the 6 screws Step Procedure Points R16939 R11865 R1694...

Page 19: ...EA PCBs Removal Procedure 17 15 Unfasten the 4 hooks and remove the main PCB 2 Remove the filter PCB 1 Release the harnesses from the slit 2 Cut the clamp Step Procedure Points R16941 Filter PCB R1694...

Page 20: ...Si001155EA 18 Removal Procedure 3 Release the harnesses from the slit 4 Release the harnesses from the 2 hooks 5 Remove the screw 6 Unfasten the 2 hooks Step Procedure Points R16944 R16945 R17244 R24...

Page 21: ...Si001155EA PCBs Removal Procedure 19 7 Lift and pull out the filter PCB Step Procedure Points R24268 Filter PCB...

Page 22: ...f all power supplies before disassembling work Step Procedure Points 1 Remove the reactor 1 Remove the screw and then the reactor 2 Remove the partition plate 1 Remove the 2 screws 2 Lift and pull the...

Page 23: ...f all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket top Since the piping ports are torn easily remove the sound blankets carefully 2 Untie the string and op...

Page 24: ...Sound Blankets Si001155EA 22 Removal Procedure 4 Pull out the sound blanket inner 5 Pull out the sound blanket bottom Step Procedure Points Sound blanket inner R11887 Sound blanket bottom R11888...

Page 25: ...ep below 120 C 248 F For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry Note Before working make sure that the refrigerant gas is empty in the...

Page 26: ...ver 3 Disconnect the lead wires U V W of the compressor 4 Remove the screw and then the four way valve coil The cooling only models do not have the four way valve coil Step Procedure Points Terminal c...

Page 27: ...Si001155EA Four Way Valve Removal Procedure 25 5 Remove the putty 6 Heat up the brazed part and withdraw the piping with pliers Step Procedure Points R7248 Four way valve R7249 R7250...

Page 28: ...s Restore the piping by non oxidation brazing Note Before working make sure that the refrigerant gas is empty in the circuit Be sure to apply nitrogen replacement when heating up the brazed part Do no...

Page 29: ...s Heat up the brazed part of the discharge side pipe and disconnect it 4 Heat up the brazed part of the suction side pipe and disconnect it 5 Lift the compressor up and remove it Step Procedure Points...

Page 30: ...Revision History Month Year Version Revised contents 08 2012 Si001155 First edition 12 2016 Si001155EA Model addition RXS25RV1A...

Page 31: ...ies supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and acces...