Related Manuals for Daikin 3MKD75BVMA8
Summary of Contents for Daikin 3MKD75BVMA8
- Page 1 Si12-793 REMOVAL PROCEDURE S E R V I C E M A N U A L 5.8/6.8/7.1/7.5 kW Class Outdoor Unit Inverter Multi Type...
- Page 2 Service Manual Removal Procedure Outdoor Unit Cooling Only Heat Pump 3MKD75BVMA8 3MXD68BVMA8 2MKD58DVM 3MXS68EVMA 3MKD58DVM 3MKD75DVM 4MKD75DVM 4MKS71DVM 3MKS71ESG 3MKS75EVMA...
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Page 3: Table Of Contents
Si12-793 Table of Contents 1. Removal of Outer Panels ................2 2. Removal of Electrical Box ...............3 3. Removal of PCBs..................7 4. Removal of Fan Motor................10 5. Removal of Sound Blankets..............11 6. Removal of Coils / Thermistors .............13 7. Removal of Four Way Valve / Defrost Solenoid Valve......15 8. -
Page 4: Removal Of Outer Panels
Removal of Outer Panels Si12-793 1. Removal of Outer Panels Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step External appearance (R2159) Remove the 4 screws of Top panel the top panel and the 6 screws of the front panel. -
Page 5: Removal Of Electrical Box
Si12-793 Removal of Electrical Box 2. Removal of Electrical Box Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the connecting wires. Service monitor PCB The figure shows the connecting wires. - Page 6 Removal of Electrical Box Si12-793 Step Procedure Points Pull out the terminal Glass tube fuse and varistor board to open. cannot be replaced Glass tube fuse individually because lead- free soldering is provided. Varister Terminal board (R2165) Screw 2. Remove the harnesses. [S20] [S21] [S22] Disconnect the connectors for the...
- Page 7 Si12-793 Removal of Electrical Box Step Procedure Points Disconnect the relay connector of the compressor. (R2169) Remove the reactor lead wires. Reactor (R2170) 3. Remove the wire fixing plate. Remove the 2 screws of the wire fixing plate. Wire fixing plate (R11309) 4.
- Page 8 Removal of Electrical Box Si12-793 Step Procedure Points Remove the screw of the electrical box. (R2173) Remove the drip proof cover. Drip proof cover (R2174) Disconnect the connector for the fan Inverter PCB motor [S70] from the inverter PCB. [S70] (R2175) Lift up the electrical box and dismount it.
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Page 9: Removal Of Pcbs
Si12-793 Removal of PCBs 3. Removal of PCBs Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the service When reassembling, insert monitor PCB and the the base bar into the hole of main PCB. - Page 10 Removal of PCBs Si12-793 Step Procedure Points Lift up the main PCB. (R2181) Disconnect the connectors [S31] [S32] [S33] [S71] [H1] [H2]. [S31] [S71] [S33] (R10362) [S32] [H1] (yellow) [H2] (blue) (R10363) The figure shows the main PCB. [S93] FU2 (3.15A) [S92] [S90] [H1]...
- Page 11 Si12-793 Removal of PCBs Step Procedure Points Unfasten the 2 hooks and remove the service monitor PCB. Hook Priority room setting switch (SW4) LED A Wiring error check switch LED 1 (SW3) LED 2 Forced operation [ON/OFF] LED 3 switch (SW1) LED 4 NIGHT QUIET mode setting Operation mode switch...
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Page 12: Removal Of Fan Motor
Removal of Fan Motor Si12-793 4. Removal of Fan Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the nut and Preparation remove the outdoor fan. Disconnect the connector for the fan motor. -
Page 13: Removal Of Sound Blankets
Si12-793 Removal of Sound Blankets 5. Removal of Sound Blankets Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the 5 screws of the right side panel. Right side panel (R2191) - Page 14 Removal of Sound Blankets Si12-793 Step Procedure Points Remove the sound Carefully remove the sound blanket (top upper, top blanket, which is easily inner, outer, inner). torn in the piping section. Sound blanket (top) Sound blanket (top inner) Sound blanket (inner) Sound blanket (outer)
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Page 15: Removal Of Coils / Thermistors
Si12-793 Removal of Coils / Thermistors 6. Removal of Coils / Thermistors Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the screw of Some models do not have a the four way valve coil. - Page 16 Removal of Coils / Thermistors Si12-793 Step Procedure Points Peel off the putty and Place the thermistor so that pull out the thermistors. its end comes up to the end Gas pipe thermistor of the fixture. Liquid pipe Be careful not to lose the clip thermistor or fixtures for the liquid and gas pipe thermistor.
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Page 17: Removal Of Four Way Valve / Defrost Solenoid Valve
Si12-793 Removal of Four Way Valve / Defrost Solenoid Valve 7. Removal of Four Way Valve / Defrost Solenoid Valve Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points... - Page 18 Removal of Four Way Valve / Defrost Solenoid Valve Si12-793 Step Procedure Points Disconnect the 2 Note: brazed points, first (e), Do not use a metal saw for and then (f). cutting pipes by all means Remove the defrost because the sawdust comes solenoid valve.
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Page 19: Removal Of Distributor
Si12-793 Removal of Distributor 8. Removal of Distributor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Before working, make Warning sure that the refrigerant Be careful not to get yourself gas is empty in the circuit. -
Page 20: Removal Of Compressor
Removal of Compressor Si12-793 9. Removal of Compressor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the terminal cover. Terminal cover (R16026) Disconnect the Compressor lead wire compressor lead wires. - Page 21 Si12-793 Removal of Compressor Step Procedure Points Before working, make sure that the refrigerant is Warning empty in the circuit. Be careful not to get yourself Be sure to apply nitrogen burnt with the pipes and other replacement when parts that are heated by the heating up the brazed gas brazing machine.
- Page 22 Revision History Month / Year Version Revised contents 07 / 2013 Si12-793 First edition...
- Page 23 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. 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.