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Si00-775

Removal of PCBs

Removal Procedure

17

3. Removal of PCBs

Procedure

Warning

Be sure to wait for 10 minutes or more after turning off all power 
supplies before disassembling work.

Step

Procedure

Points

1

Disconnect the 
connectors [S52] 
[S102] from the service 
monitor PCB. 

Preparation

„

Remove the electrical box 
according to the "Removal of 
Electrical Box".

2

Detach the 4 clamps 
with pliers and remove 
the service monitor 
PCB.

3

Remove the screws of 
the terminal board and 
the earth wire.

Service monitor PCB

[S52]

[S102]

(R16707)

Clamp

(R16708)

(R17030)

Terminal board

Earth wire

Summary of Contents for RKS71FV1B

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 7 1 8 0 9 0 kW Class Outdoor Unit Inverter Non Inverter Pair Type Si00 775...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only zHeat Pump RKS71FV1B RXS71FV1B RKS71FVMA RXS71FVMA RXS80FVMA RXS90FVMA RYN71FV1A...

Page 3: ...lectrical Box 13 3 Removal of PCBs 17 4 Removal of Fan Motor 20 5 Removal of Coils Thermistors 21 6 Removal of Sound Blankets 24 7 Removal of Compressor 27 Note The illustrations may be slightly diffe...

Page 4: ...rocedure Points 1 Appearance features The design of discharge grille is different depending on the model 2 Remove the suction grille The hooks are secured in the clearances of the outdoor heat exchang...

Page 5: ...ve the top panel 1 Remove the 4 screws on the back and the screw on the left side 2 Remove the 2 screws on the front and the screw on the right side panel 3 Lift the top panel and remove it Step Proce...

Page 6: ...Removal Procedure 4 Remove the front panel 2 This screw is M5 3 16 1 Remove the 5 screws 2 Slide the front panel 2 downward to unfasten the hook 3 Remove the front panel 2 Step Procedure Points R1672...

Page 7: ...cedure 5 5 Remove the right side panel 1 Remove the 2 screws Slide the right side panel downward to unfasten the 2 hooks on the rear side 2 Remove the right side panel Step Procedure Points R16728 Rig...

Page 8: ...door fan first to remove the front panel 1 1 Remove the 4 screws on the discharge grille 2 Pull the bottom of the discharge grille 3 Slide the discharge grille downward to unfasten the 2 hooks at the...

Page 9: ...f the outdoor fan Nut size M8 6 Remove the 2 screws on the partition plate 1 7 Remove the screw at the bottom left of the front 8 Remove the screw at the bottom of the left side Step Procedure Points...

Page 10: ...re 9 Remove the screw at the bottom of the rear side 10 Lift the front panel 1 to unfasten the hook 11 Remove the front panel 1 Be sure to detach the front panel 1 carefully so as not to deform it Ste...

Page 11: ...9 7 Remove the rear panel 1 Remove the screw on the partition plate 2 2 Slide the partition plate 2 to the left and remove it 3 Remove the 3 screws on the wire fixing plate Step Procedure Points Rear...

Page 12: ...al board and earth wires Detach the connecting wire and the power supply wire 6 Release the holder of the outdoor temperature thermistor The holder is secured in the clearances of the outdoor heat exc...

Page 13: ...val Procedure 11 7 Release the harness of the outdoor temperature thermistor from the groove 8 Remove the 3 screws on the rear panel 9 Remove the screw on the bottom frame Step Procedure Points Thermi...

Page 14: ...12 Removal Procedure 10 Remove the screw on the stop valve mounting plate 11 Lift the rear panel upward to unfasten the 2 hooks 12 Remove the rear panel Step Procedure Points Stop valve mounting plat...

Page 15: ...es or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw on the stop valve mounting plate 2 Remove the screw on the partition plate 1 3 Remove...

Page 16: ...coil S40 overload protector S80 four way valve coil S90 thermistors The cooling only models do not have the harness for S80 When reassembling insert the clamp of the thermistor ASSY harness into the h...

Page 17: ...f the thermistor harness from the hole of the electrical box 9 The compressor lead wire is fixed on the partition plate 1 with a clamp 10 Release the clamp of the compressor relay harness with pliers...

Page 18: ...Procedure 11 Disconnect the relay connector for the compressor 12 Slide the electrical box to the left to unfasten the hook on the right side of the box 13 Lift up the electrical box and remove it St...

Page 19: ...k Step Procedure Points 1 Disconnect the connectors S52 S102 from the service monitor PCB Preparation Remove the electrical box according to the Removal of Electrical Box 2 Detach the 4 clamps with pl...

Page 20: ...minal board 6 Disconnect the harnesses 1 Black 2 White 3 Red L1 Black L2 Brown N1 White N2 Blue 7 Disconnect the 2 harnesses for the reactor HR1 HR2 HR1 White HR2 Blue The harness for HR2 has a ferrit...

Page 21: ...00 775 Removal of PCBs Removal Procedure 19 8 Remove the 3 screws of the main PCB 9 Release the 4 hooks 10 Lift up and remove the main PCB Step Procedure Points Main PCB R5287 Hook R13524 Main PCB R52...

Page 22: ...crews first Then remove the 2 upper screws Preparation Remove the electrical box according to the Removal of Electrical Box Be sure to remove the lower screws first If the top screws are removed first...

Page 23: ...power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coil 1 Pull the electronic expansion valve coil out 2 Remove the four way valve coil The cooling...

Page 24: ...ve the thermistors 1 Pull out the outdoor heat exchanger thermistor 2 Slightly open the sound blanket outer 3 Remove the sound blanket top upper Step Procedure Points Outdoor heat exchanger thermistor...

Page 25: ...Si00 775 Removal of Coils Thermistors Removal Procedure 23 4 Remove the discharge pipe thermistor Step Procedure Points Discharge pipe thermistor R9469...

Page 26: ...supplies before disassembling work Step Procedure Points 1 Open the sound blanket outer 2 Remove the sound blanket top upper The sound blanket is fragile Carefully pass the discharge pipe through it...

Page 27: ...und blanket top lower The sound blanket is fragile Carefully pass the discharge pipe through it 6 Open the sound blanket inner The sound blanket is fragile Be careful of the notches of the compressor...

Page 28: ...Removal of Sound Blankets Si00 775 26 Removal Procedure 7 Remove the sound blanket inner Step Procedure Points Sound blanket inner R7019...

Page 29: ...edure 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 terminal cover 2 Pull out the 3 lead wires 3 Remo...

Page 30: ...y non oxidation 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 w...

Page 31: ...Revision History Month Year Version Revised contents 07 2013 Si00 775 First edition...

Page 32: ...ories 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 acc...

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