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Head Office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan

Tokyo Office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan

http://www.daikin.com/products/ac/

All rights reserved

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Warning

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Daikin products are manufactured for export to numerous countries throughout the world. Prior to 
purchase, please confirm with your local authorised importer, distributor and/or retailer whether this 
product conforms to the applicable standards, and is suitable for use, in the region where the product 
will be used. This statement does not purport to exclude, restrict or modify the application of any local 
legislation.

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Ask a qualified installer or contractor to install this product. Do not try to install the product yourself. 
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.

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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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Read the user's manual carefully before using this product. The user's manual provides important 
safety instructions and warnings. Be sure to follow these instructions and warnings.

If you have any enquiries, please contact your local importer, distributor and/or retailer.

Cautions on product corrosion

1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.
2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install 

the outdoor unit close to the sea shore, contact your local distributor.

Dealer

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Specifications, designs and other content appearing in this brochure are current as of August 2016 but subject to change without notice.

Si121656E

08/2016 AK.B

Summary of Contents for 2MKC30QVM4

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Multi Type 3 0 kW Class Si121656E...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only 2MKC30QVM4...

Page 3: ...e of Contents 1 Outer Panels 2 2 Outdoor Fan Fan Motor 3 3 Electrical Box PCB 5 4 Thermistor ASSY 11 5 Right Side Panel Partition Plates Sound Blankets 13 6 Electronic Expansion Valve Coils Gas Pipe T...

Page 4: ...n the top panel Remove the 5 screws of the front panel 3 4 Lift up the left side of the front panel and unfasten the 3 hooks Unfasten the 2 right side hooks and remove the front panel When reassemblin...

Page 5: ...oove S71 fan motor When reassembling fix the shield plate to the electrical box using the clamp 3 Remove the nut and then the outdoor fan When reassembling put the fan motor lead wire through the back...

Page 6: ...he 2 lower hooks into the bottom frame 5 Unfasten the 3 hooks on the fan motor fixing frame and release the fan motor lead wire 6 Remove the 4 screws from the fan motor 7 Remove the fan motor Step Pro...

Page 7: ...ield plate When reassembling make sure that the 5 hooks are securely fastened 1 2 Remove the screw of the stop valve cover Slide the stop valve cover downward and remove it 3 Remove the screw of the s...

Page 8: ...ire fixture 2 Remove the 11 screws on the 2 terminal boards and disconnect the 2 connecting wires Room A and B and power supply wire 3 Remove the 2 screws of the 2 terminal boards Step Procedure Point...

Page 9: ...ore does not touch the terminal board mounting plate 3 Remove the electrical box S40 overload protector 1 Disconnect the connector S40 2 Disconnect the connectors S20 and S21 S20 white electronic expa...

Page 10: ...moval Procedure 3 Disconnect the connectors S90 and S92 and pull out the clamp S90 S92 thermistors 4 Disconnect the connector S30 S30 compressor 5 Pull out the clamp Step Procedure Points S90 Clamp S9...

Page 11: ...the 2 connectors for the reactor 7 Remove the 2 screws of the electrical box 8 Lift up the electrical box and remove it When reassembling make sure to fit the rear hook Step Procedure Points Brown Or...

Page 12: ...Remove the PCB 1 Remove the earth ground screw 2 3 Remove the 3 screws of the PCB Unfasten the upper hook first then the 2 spacers and the lower hook 4 Remove the PCB Step Procedure Points Earth grou...

Page 13: ...ction net and the slit 2 Remove the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor 3 Open the sound blanket outer 2 and pull out the discharge pipe temperature th...

Page 14: ...Thermistor ASSY Si121656E 12 Removal Procedure 4 Remove the thermistor ASSY Step Procedure Points Thermistor ASSY R23631...

Page 15: ...power supplies before disassembling work Step Procedure Points 1 Remove the right side panel 1 Remove the 8 screws 2 3 Lift up the right side panel to unfasten the 2 hooks Remove the right side panel...

Page 16: ...ets Si121656E 14 Removal Procedure 2 Pull out the partition plate 2 and remove it 3 Detach the fastener and remove the sound blanket outer 2 4 Remove the 2 screws Step Procedure Points Partition plate...

Page 17: ...15 5 Slide the reactor up to unfasten the 2 hooks and remove the reactor 6 Remove the 2 screws 7 Lift up the partition plate 1 and remove it When reassembling fit the hook on the bottom frame Step Pro...

Page 18: ...ankets Since the piping ports on the sound blanket are torn easily remove the blanket carefully 1 Remove the sound blanket top 2 Pull out the sound blanket outer 1 3 Pull out the sound blanket inner S...

Page 19: ...re after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the 2 electronic expansion valve coils 2 Cut the clamp and remove the 2 gas pipe thermistors Be careful...

Page 20: ...refrigerant gas Restore the piping by non oxidation brazing Note Before working make sure that the refrigerant gas is empty in the circuit Be sure to apply nitrogen replacement when heating up the bra...

Page 21: ...the brazed part of the discharge side pipe and disconnect it Heat up the brazed part of the suction side pipe and disconnect it Remove the 3 nuts Lift up the compressor and remove it Step Procedure Po...

Page 22: ...Revision History Month Year Version Revised contents 08 2016 Si121656E First edition...

Page 23: ...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...

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