Daikin RZQ100HY4A Service Manual Download Page 10

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Procedure to Remove PCB Assy (3)

Si281317

Removal Procedure

6. Procedure to Remove PCB Assy (3)

Procedure

Warning

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

Step

Procedure

Points

3. Remove the PCB unit (for

inverter).

Unscrew the 4 screws
that fix the PCB and the
radiation fin.

Disengage the 2 hooks,
and then while peeling
off silicon, remove the
PCB (for inverter).

Disengage the 4
mounting screws to
remove the radiation
fin.

PCB mounting plate

Radiation fin

Summary of Contents for RZQ100HY4A

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 4 5 6 HP Class Si281317...

Page 2: ...Service Manual Removal Procedure Outdoor Unit Applicable Models zHeat Pump RZQ100HY4A RZQ125HY4A RZQ160HY4A...

Page 3: ...3 3 Procedure to Remove Switch Box 4 4 Procedure to Remove PCB Assy 1 6 5 Procedure to Remove PCB Assy 2 7 6 Procedure to Remove PCB Assy 3 8 7 Procedure to Remove Low Pressure Sensor Electronic Expan...

Page 4: ...ownward to disassemble it 2 For the front panel side front panel unscrew a single mounting screw and then press this panel downward to remove it 3 For the top panel unscrew the 8 mounting screws and t...

Page 5: ...fan 2 Remove the fan motor In order to disconnect the connector do not pull the lead wire Hold the connector part and then press the hooks Cautions in mounting the motor Be sure to fix the motor lead...

Page 6: ...panel 1 Remove all connectors and Fasten terminals which have a connection to the switch box Remove the lead wire from the terminal of the high pressure switch Remove the lead wire of the compressor f...

Page 7: ...val Procedure 5 2 Unscrew the 2 screws that fix the switch box 3 In order to remove the switch box disengage the 3 hooks 1 on the right and 2 on the left and then pull out this switch box frontward or...

Page 8: ...om the terminal cover of the compressor Remove the lead wire from the terminal of the high pressure switch and low pressure sensor Disconnect the respective connectors from the following parts on the...

Page 9: ...r 1 Disconnect all connectors Unscrew the 3 screws that fix the mounting plate of electrical components for control 2 Disengage the hooks in 2 places to remove the mounting plate of electrical compone...

Page 10: ...urning off all power supplies before disassembling work Step Procedure Points 3 Remove the PCB unit for inverter 1 Unscrew the 4 screws that fix the PCB and the radiation fin 2 Disengage the 2 hooks a...

Page 11: ...ard 2 Strip off the brazed sections in 2 places on the body of the valve and then remove this body 2 Remove the high pressure switch 1 Disconnect the terminals from the high pressure switch and then s...

Page 12: ...e pipe thermistor pinch the mounting spring and pull out this thermistor 2 For the heat exchanger distributor pipe thermistor pull the clamp frontward and then remove this thermistor 3 In order to rem...

Page 13: ...in the unit before starting this removal In order to prevent a gas welding flame from having influence on other pipes protect them with a sheet or iron plate used for welding operation Caution While...

Page 14: ...sections are directly stripped off from the pipes oil may catch fire Be sure to cut the pipes in advance with a pipe cutter 1 Unscrew the 5 screws from the stop valve mounting plate 2 Disconnect the g...

Page 15: ...Revision History Month Year Version Revised contents 01 2013 Si281317 First edition...

Page 16: ...ries 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 acce...