Daikin RKS25KVMA, Service Manual Removal Procedure

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 2 0 2 5 3 0 3 5 kW Class Si001067...

Page 2: ...35J2V1B RKS35J2V1B RXL20G2V1B9 RKS20KVLT RKS25KVLT RXL20G3V1B RKS30KVLT RXS25G2V1B9 RKS25KVMA RXS35G2V1B9 RKS35KVMA RXS20J2V1B RKS20G2V1B9 RXS25J2V1B RKS25G2V1B9 RXS35J2V1B RKS35G2V1B9 RXS20KVLT RXS25...

Page 3: ...lectrical Box 11 3 Removal of PCBs 14 4 Removal of Reactor Partition Plate 21 5 Removal of Sound Blankets 23 6 Removal of Four Way Valve 25 7 Removal of Compressor 28 Note The illustrations may be sli...

Page 4: ...sembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exchanger 2 Remove the panels The stop valve cover is united with the shield...

Page 5: ...he 3 screws and lift the top panel Some models have only 2 screws 3 Remove the drip proof plate 4 Remove the 4 screws and remove the discharge grille The discharge grille has 4 hooks Step Procedure Po...

Page 6: ...nels Fan Motor Si001067 4 Removal Procedure 5 Remove the 8 screws of the front panel 6 Unfasten the hooks Pull and remove the front panel The front panel has 4 hooks Step Procedure Points R11825 Front...

Page 7: ...emove the nut of the outdoor fan 2 Remove the outdoor fan When reassembling align the mark of the outdoor fan with the D cut section of the motor shaft 3 Release the outdoor temperature thermistor Ste...

Page 8: ...1067 6 Removal Procedure 4 Cut the clamp Some models do not have the clamp 5 Disconnect the connector for the fan motor S70 6 Release the fan motor lead wire from the hook Step Procedure Points R11830...

Page 9: ...ter Panels Fan Motor Removal Procedure 7 7 Remove the screw and remove the fan motor fixing frame When reassembling fit the lower hooks into the bottom frame Step Procedure Points R11833 Fan motor fix...

Page 10: ...n reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 9 Remove the 4 screws and remove the fan motor 4 Remove the right side panel...

Page 11: ...moval Procedure 9 2 Remove the 4 screws on the right side panel 3 Remove the screw near the stop valves 4 Unfasten the hook on the rear side When reassembling make sure to fit the hook Step Procedure...

Page 12: ...ls Fan Motor Si001067 10 Removal Procedure 5 Lift up the right side panel and remove it When reassembling make sure to fit the hook 6 Lift up the guard net and remove it Step Procedure Points R12272 H...

Page 13: ...1 Disconnect the connector for the four way valve coil S80 Preparation Remove the outer panels and disconnect the connector for the fan motor according to the Removal of Outer Panels Fan Motor 2 Disco...

Page 14: ...onnector for the compressor 5 Disconnect the connector for the overload protector S40 When reassembling connect the connectors in the following order 1 S40 2 relay connector for compressor 3 reactor 4...

Page 15: ...ful not to lose the clip for the thermistor 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 R11851...

Page 16: ...rk Step Procedure Points 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 board without removing the electrical...

Page 17: ...rced operation button PCB Be careful of a sharp protrusion at the back of the forced operation button PCB 5 Disconnect the selective connector for standby electricity saving and pull out the relay con...

Page 18: ...Removal of PCBs Si001067 16 Removal Procedure 7 Release the harness 8 Cut the clamps at the 2 locations 9 Disconnect the connector for the filter PCB S10 Step Procedure Points R11859 R11860 R11861 S10...

Page 19: ...gnetic relay S50 and for the forced operation button PCB S100 11 Disconnect the connector for the filter PCB HL3 HN3 12 Release the harnesses from the hook 13 Release the harness for the outdoor tempe...

Page 20: ...nd remove the main PCB S10 HL3 HN3 filter PCB S20 electronic expansion valve coil S40 overload protector S50 magnetic relay S70 fan motor S80 four way valve coil S90 thermistors S100 forced operation...

Page 21: ...Removal of PCBs Removal Procedure 19 2 Remove the filter PCB 1 Release the harnesses from the hook 2 Cut the clamp 3 Release the harnesses from the hook Step Procedure Points R11869 Filter PCB R11871...

Page 22: ...PCBs Si001067 20 Removal Procedure 4 Release the harnesses from the 2 hooks 5 Remove the screw 6 Unfasten the 2 hooks 7 Lift and remove the filter PCB Step Procedure Points R11873 R11874 R11876 Filter...

Page 23: ...l power supplies before disassembling work Step Procedure Points 1 Remove the reactor Preparation Remove the outer panels according to the Removal of Outer Panels Fan Motor Remove the electrical box a...

Page 24: ...n Plate Si001067 22 Removal Procedure 2 The partition plate has 2 hooks on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hooks into the bottom frame Step P...

Page 25: ...fter turning off 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 th...

Page 26: ...moval of Sound Blankets Si001067 24 Removal Procedure 4 Pull out the sound blanket inner 5 Pull out the sound blanket bottom Step Procedure Points R11887 Sound blanket inner Sound blanket bottom R1188...

Page 27: ...r 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Pull out the electronic expansion valve coil 2 Remove the terminal cover 3 Disconnect the le...

Page 28: ...ion brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four...

Page 29: ...ng pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a s...

Page 30: ...protection do not discharge the refrigerant gas in the atmosphere Make sure to collect all the refrigerant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is required t...

Page 31: ...circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that the brazing flame cannot influence pe...

Page 32: ...Revision History Month Year Version Revised contents 01 2013 Si001067 First edition...

Page 33: ...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...