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Daikin RKS25E2V1B, Service Manual

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Daikin RKS25E2V1B Service Manual Download Page 14

Removal of PCB

Si001071

12

Removal Procedure

3. Removal of PCB

Procedure

Warning

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

Step

Procedure

Points

1

Feature of the main 
PCB

„

You can remove the main 
PCB when you disconnect 
the lead wires on the 
terminal board without 
removing the electrical box.

2

Remove the screw on 
the terminal board.

3

Release the 2 earth 
terminals.

(R7255)

(R7256)

Terminal 
board

(R7257)

Earth 
terminal

Summary of Contents for RKS25E2V1B

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 2 5 3 5 kW Class Outdoor Unit Inverter Pair Type Si001071...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only zHeat Pump RKS25E2V1B RXS25E2V1B RKS35E2V1B RXS35E2V1B...

Page 3: ...Electrical Box 9 3 Removal of PCB 12 4 Removal of Reactor Partition Plate 14 5 Removal of Sound Blanket 16 6 Removal of Four Way Valve 18 7 Removal of Compressor 21 Note The illustrations may be sligh...

Page 4: ...embling 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 p...

Page 5: ...ws and lift the top panel 3 Remove the drip proof plate 4 Disconnect the connector for the fan motor S70 The fan motor is united with the front panel 5 Remove the 6 screws of the front panel Step Proc...

Page 6: ...el The front panel has 4 hooks 3 Remove the fan motor Nut size M6 1 Unscrew the washer fitted nut of the outdoor fan 2 Remove the outdoor fan When reassembling align the mark of the outdoor fan with t...

Page 7: ...o unfasten the hooks 4 Remove the bell mouth 5 Open the hooks and release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entang...

Page 8: ...Fan Motor Si001071 6 Removal Procedure 6 Remove the 4 screws and remove the fan motor M4 16 7 Remove the 2 screws and remove the fan motor fixing frame Step Procedure Points Fan motor R3250 R3251 Fan...

Page 9: ...al Procedure 7 4 Remove the right side panel 1 Remove the 2 screws on the rear side 2 Release the outdoor temperature thermistor 3 Lift up the guard net and remove it Step Procedure Points R7207 R7208...

Page 10: ...ight side panel 5 Remove the screw near the stop valves 6 Unfasten the hook on the rear side When reassembling make sure to fit the hook 7 Lift up the right side panel and remove it When reassembling...

Page 11: ...g work Step Procedure Points 1 Remove the electrical box Preparation Remove the panels and disconnect the connector for the fan motor according to Removal of Outer Panels Fan Motor 1 Disconnect the 2...

Page 12: ...5 Disconnect the connector for electronic expansion valve coil S20 6 Disconnect the connector for four way valve coil S80 7 Release the discharge pipe thermistor Be careful not to lose the clip for t...

Page 13: ...8 Cut the clamp 9 Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor 10 Lift and remove the electrical box Step Procedure Points R7221 R7222 Outdoor hea...

Page 14: ...ll power supplies before disassembling work Step Procedure Points 1 Feature of the main PCB You can remove the main PCB when you disconnect the lead wires on the terminal board without removing the el...

Page 15: ...Unfasten the 3 hooks on the upper side Lift and pull out the control PCB S20 electronic expansion valve coil S30 compressor S40 overload protector S70 fan motor S80 four way valve coil S90 thermistors...

Page 16: ...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 ac...

Page 17: ...artition Plate Removal Procedure 15 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hook into the bottom frame Step Proce...

Page 18: ...after 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 blanket carefully 2 Untie th...

Page 19: ...i001071 Removal of Sound Blanket Removal Procedure 17 4 Pull the sound blanket inner out 5 Pull the sound blanket bottom out Step Procedure Points R11887 Sound blanket inner Sound blanket bottom R1188...

Page 20: ...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 21: ...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 22: ...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 23: ...nment 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 requ...

Page 24: ...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 steel plate so that the brazing flame cannot inf...

Page 25: ...Revision History Month Year Version Revised contents 01 2013 Si001071 First edition...

Page 26: ...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...

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