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Removal of Compressor

Si00-872

22

Removal Procedure

8. Removal of Compressor

Procedure

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 2 nuts of 
the compressor.

Warning

Be careful not to get yourself 
burnt with the pipes and other 
parts that are heated by the 
gas brazing machine.

Warning

If the refrigerant gas leaks 
during work, ventilate the 
room. (If the refrigerant gas is 
exposed to flames, toxic gas 
may be generated.)

Warning

Since it may happen that the 
refrigerant oil in the 
compressor catches fire, 
prepare wet cloth so as to 
extinguish fire immediately.

Caution

From the viewpoint of global 
environment 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 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 way 
valve with wet cloth and 
provide water so that the 
cloth does not dry.

In case of difficulty with gas 
brazing machine 

1. Disconnect the brazed part 

where is easy to disconnect 
and restore.

2. Cut pipes on the main unit 

with a tube cutter in order to 
make it easy to disconnect.

„

Before working, make 
sure that the refrigerant is 
empty in the circuit.

„

Be sure to apply nitrogen 
replacement when 
heating up the brazed 
part.

2

Heat up the brazed part 
of the discharge side 
and disconnect.

Compressor

(R11889)

(R12031)

Discharge side

Summary of Contents for RKS20G2V1B

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 Outdoor Unit Inverter Pair Type Si00 872...

Page 2: ...anual Removal Procedure Outdoor Unit zCooling Only zHeat Pump RKS20G2V1B ARXG25E3V1B RXG25E3V1B RKS25G2V1B ARXG35E3V1B RXG35E3V1B RKS35G2V1B ARXS20G2V1B RXS20G2V1B ARXS25G2V1B RXS25G2V1B ARXS35G2V1B R...

Page 3: ...10 3 Removal of Thermistors 13 4 Removal of PCB 14 5 Removal of Reactor Partition Plate 16 6 Removal of Sound Blankets 18 7 Removal of Four Way Valve 19 8 Removal of Compressor 22 Note The illustratio...

Page 4: ...Procedure Points 1 Features Some models do not have a guard net 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 s...

Page 5: ...ews and lift the top panel 3 Remove the drip proof plate 4 Remove the 4 screws and remove the discharge grille The discharge grille has 4 hooks Step Procedure Points DAIKIN INVERTER Top panel R7190 DA...

Page 6: ...Motor Si00 872 4 Removal Procedure 5 Remove the 7 screws of the front panel 6 Unfasten the hooks Pull and remove the front panel The front panel has 4 hooks Step Procedure Points DAIKIN INVERTER R123...

Page 7: ...an motor Nut size M6 1 Remove the washer fitted 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 Cut the...

Page 8: ...an motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 7 Remove the 4 screws and remove the fan motor Be sure to remove the lower screws first If the upper...

Page 9: ...uter Panels Fan Motor Removal Procedure 7 8 Remove the screw and remove the fan motor fixing frame When reassembling fit the lower hooks into the bottom frame Step Procedure Points R9333 Fan motor fix...

Page 10: ...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 4 Remove the 4 screws on the right side panel Step Procedure Points...

Page 11: ...e 9 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 make sure to...

Page 12: ...sembling work Step Procedure Points 1 Disconnect the 2 connectors for the reactor Preparation Remove the panels and disconnect the connector for the fan motor according to the Removal of Outer Panels...

Page 13: ...ctors for the filter PCB S10 and for the overload protector S40 6 Disconnect the connectors for the electronic expansion valve coil S20 and for the four way valve coil S80 The cooling only models do n...

Page 14: ...emove the wire harness for standby electricity saving Some models do not have the harness for standby electricity saving 9 Cut the clamps at 2 locations 10 Lift and remove the electrical box Step Proc...

Page 15: ...ssembling work Step Procedure Points 1 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 2 Cut the clamp 3 Pull out the outdoor heat exchanger thermistor Be care...

Page 16: ...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 17: ...and pull out the main PCB 7 Feature of the main PCB S10 HL3 HN3 filter PCB S20 electronic expansion valve coil S30 compressor S40 overload protector S50 magnetic relay S70 fan motor S80 four way valve...

Page 18: ...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 19: ...artition Plate Removal Procedure 17 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 20: ...paration Remove the outer panels according to the Removal of Outer Panels Fan Motor Remove the electrical box according to the Removal of Electrical Box The design of the sound blankets varies dependi...

Page 21: ...turning off all power supplies before disassembling work Step Procedure Points 1 Pull out the electronic expansion valve coil The cooling only models do not have a four way valve 2 Remove the termina...

Page 22: ...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 23: ...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 24: ...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 25: ...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 26: ...Revision History Month Year Version Revised contents 06 2013 Si00 872 First edition...

Page 27: ...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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