Daikin RKM20QVMA Service Manual

Removal procedure

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Si001653EA

REMOVAL

PROCEDURE

S E R V I C E

M A N U A L

2.0/2.2/2.5/2.8/3.5 kW Class

Outdoor Unit

Inverter

Pair Type

Table of Contents

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Summary of Contents for Daikin RKM20QVMA

Page 1 Si001653EA REMOVAL PROCEDURE S E R V I C E M A N U A L 2.0/2.2/2.5/2.8/3.5 kW Class Outdoor Unit Inverter Pair Type...
Page 2 Service Manual Removal Procedure Outdoor Unit Cooling Only Heat Pump RKM20QVMA RXF25QVMA RKM25QVMA RXF35QVMA RKM35QVMA RXM20QVMA RXM25QVMA RXM35QVMA RXV25QVMV RXV35QVMV RXV22RVLT RXV28RVLT...
Page 3: Table Of Contents
Si001653EA Table of Contents 1. Outer Panels ...................2 2. Outdoor Fan / Fan Motor.................3 3. Electrical Box / PCB ................5 4. Suction Grille / Protection Net / Thermistor ASSY ........10 5. Sound Blankets ..................13 6. Partition Plate / Electronic Expansion Valve Coil ........14 7.
Page 4: Outer Panels
Outer Panels Si001653EA 1. Outer Panels Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 4 screws, Top panel and then the top panel. Remove the 5 screws of the front panel.
Page 5: Outdoor Fan / Fan Motor
Si001653EA Outdoor Fan / Fan Motor 2. Outdoor Fan / Fan Motor Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Disconnect the [S70]: fan motor Groove [S70] connector [S70].
Page 6 Outdoor Fan / Fan Motor Si001653EA Step Procedure Points Unfasten the 3 hooks Fan motor lead wire on the fan motor fixing frame and release the fan motor lead wire. Hook (R21612) Remove the 4 screws from the fan motor. Fan motor (R24108) Remove the fan motor.
Page 7: Electrical Box / Pcb
Si001653EA Electrical Box / PCB 3. Electrical Box / PCB Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Remove the shield plate. When reassembling, make sure to fit the 4 hooks.
Page 8 Electrical Box / PCB Si001653EA Step Procedure Points 2. Remove the electrical 1: black, back Connector box. 2: white, back 3: red, front Disconnect the 3 connectors from the terminal board. (R22835) Disconnect the [S80]: four way valve coil [S80] connector [S80].
Page 9 Si001653EA Electrical Box / PCB Step Procedure Points Disconnect the [S20]: electronic expansion connector [S20]. valve coil [S20] (R22838) Disconnect the [S90]: thermistors connector [S90] and pull out the clamp. Clamp [S90] (R22839) Disconnect the relay When reassembling, make connector for sure the compressor compressor and harness passes through the...
Page 10 Electrical Box / PCB Si001653EA Step Procedure Points Remove the 2 screws of the electrical box. (R22841) Lift up the electrical box When reassembling, make and remove it. sure to fit the rear hook. Back view Hook (R24110) (R22842) 3. Remove the PCB. Remove the earth/ ground screw.
Page 11 Si001653EA Electrical Box / PCB Step Procedure Points Remove the 5 screws of the PCB. Unfasten the 2 hooks and release the 2 spacers. Spacer Hook (R22845) Remove the PCB. (R22846) Removal Procedure...
Page 12: Suction Grille / Protection Net / Thermistor Assy
Suction Grille / Protection Net / Thermistor ASSY Si001653EA 4. Suction Grille / Protection Net / Thermistor ASSY Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the outdoor When reassembling, make Outdoor temperature thermistor...
Page 13 Si001653EA Suction Grille / Protection Net / Thermistor ASSY Step Procedure Points Remove the 7 screws on the terminal board and disconnect the Terminal board connecting wire and the power supply wire. Remove the 3 screws, Wire fixture and then the wire fixture.
Page 14 Suction Grille / Protection Net / Thermistor ASSY Si001653EA Step Procedure Points 11 Open the sound blanket Be careful not to lose the (top) and pull out the fixture for the thermistor. discharge pipe Discharge pipe temperature thermistor. temperature thermistor Fixture (R20854) (R22856)
Page 15: Sound Blankets
Si001653EA Sound Blankets 5. Sound Blankets Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the sound The design of the sound blanket (top). blankets varies depending on the model.
Page 16: Partition Plate / Electronic Expansion Valve Coil
Partition Plate / Electronic Expansion Valve Coil Si001653EA 6. Partition Plate / Electronic Expansion Valve Coil Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 2 screws of the partition plate.
Page 17: Four Way Valve
Si001653EA Four Way Valve 7. Four Way Valve Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.
Page 18 Four Way Valve Si001653EA Step Procedure Points Remove the terminal cover. Terminal cover (R22867) Remove the protection W (blue) bushing. U (red) Disconnect the V (yellow) compressor lead wires Protection (U, V, W) and the bushing overload protector. Overload protector (R22868) Remove the 2 putties.
Page 19 Si001653EA Four Way Valve Step Procedure Points Heat up the 4 brazed parts and remove the Four way valve four way valve. Brazed part (R22870) Removal Procedure...
Page 20: Compressor
Compressor Si001653EA 8. Compressor Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.
Page 21 Si001653EA Compressor Step Procedure Points Remove the protection W (blue) bushing. U (red) Disconnect the V (yellow) compressor lead wires Protection (U, V, W) and the bushing overload protector. Overload protector (R22868) Remove the putties. Brazed part of the suction side pipe Heat up the brazed part of the discharge side pipe and disconnect it.
Page 22 Revision History Month / Year Version Revised contents 02 / 2016 Si001653E First edition 11 / 2016 Si001653EA Model addition: RXF25/35QVMA, RXV22/28RVLT...
Page 23 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. Use only those parts and accessories 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 accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.

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