Daikin 4MXS115HV2C User Manual Download | Manualshive

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REMOVAL

PROCEDURE

S E R V I C E M A N U A L

Outdoor Unit

Inverter

Multi Type

11.5 kW Class

Si12-996

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Summary of Contents for 4MXS115HV2C

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Multi Type 11 5 kW Class Si12 996 ...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zHeat Pump 4MXS115HV2C ...

Page 3: ...edure 1 Table of Contents 1 Removal of Outer Panels 2 2 Removal of Fan Motor 12 3 Removal of Electrical Box 14 4 Removal of PCBs 18 5 Removal of Coils Thermistors 23 6 Removal of Sound Blanket 27 7 Removal of Compressor 30 ...

Page 4: ...embling work Step Procedure Points External appearance 1 Removal of the suction grille The hooks are secured in the clearances of the heat exchanger fins 1 Release the 3 hooks at the upper first and then 3 hooks at the middle 2 Release the 3 hooks at the bottom 2 Removal of the top panel 1 Remove the 7 screws and remove the top panel R9585 R9586 Suction grille R9587 R9588 Top panel ...

Page 5: ... 3 Removal of the right side panel 1 Remove the 5 screws 2 Slide the right side panel downward to release 2 hooks on the back side 3 Remove the right side panel Step Procedure Points R9589 Right side panel R11051 Hook Holes Hooks Hook Holes R11052 R11053 ...

Page 6: ...uter Panels Si12 996 4 Removal Procedure 4 Removal of the front panel 2 M5 20 1 Remove the 2 screws 2 Slide the front panel 2 downward to release the 3 hooks Step Procedure Points R11054 Front panel 2 R11055 R9594 ...

Page 7: ...anel 2 and the electrical box 5 Removal of the front panel 1 Remove the discharge grille and outdoor fan first to remove the front panel 1 1 Remove the 4 screws on the discharge grille 2 Pull the bottom of the discharge grille toward yourself Step Procedure Points R11056 Insulation sheet R11057 Discharge grille Front panel 1 R11058 ...

Page 8: ...edure 3 Remove the fixing nut and remove the outdoor fan Fan fixing nut M8 4 Remove the 2 screws on the partition plate 1 5 Remove the 2 screws at the bottom left of the front Step Procedure Points R11059 Outdoor fan Partition plate 1 R11060 R11061 ...

Page 9: ... 6 Remove the screw at the bottom of the left side 7 Remove the screw at the bottom of the back side 8 The front panel 1 is provided with a hook on its front Lift the front panel 1 off position to remove it Step Procedure Points R11062 R11063 Hook R18409 ...

Page 10: ... front panel 1 6 Removal of the rear panel 1 Remove the 2 screws on the partition plate 2 2 Lift up slightly and remove the partition plate 2 3 Remove the 2 screws on the wire fixing plate Step Procedure Points R11065 Partition plate 2 R11066 R11067 Wire fixing plate ...

Page 11: ...2 996 Removal of Outer Panels Removal Procedure 9 4 Remove the wire fixing plate 5 Remove the 4 screws on the rear panel 6 Remove the screw from the bottom frame Step Procedure Points R11068 R11069 R11070 ...

Page 12: ...valve mounting plate Peel off a half of the insulation material 8 Lift the rear panel upward to release the 2 hooks 9 Push the hooks of the outdoor temperature thermistor holder from inner side Step Procedure Points R11071 Insulation material Stop valve mounting plate R11072 Hooks R11073 ...

Page 13: ...moval of Outer Panels Removal Procedure 11 10 The outdoor temperature thermistor holder is now released 11 Remove the rear panel Step Procedure Points Outdoor temperature thermistor holder R11074 R11075 Rear panel ...

Page 14: ...connect the connector for fan motor S70 and release the ferrite core attached to the electrical box with clamp When reassembling insert the clamp into the small hole 2 The illustration shows arrangement of the fan motor lead wire Fix the ferrite core at where the tension does not pull the PCB ASSY when connecting the connectors 3 Cut the clamps at 2 locations S70 Ferrite core R11082 R11084 Fan mot...

Page 15: ... sure to remove the bottom screws first If the top screws are removed first the fan motor the center of gravity of which is toward the front may tilt down or fall getting you injured 6 Remove the fan motor When reassembling be sure to place the wire harness lower Step Procedure Points R11076 2 1 R11077 Fan motor R11078 Harness ...

Page 16: ...0 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw from the stop valve mounting plate 2 Remove the 2 screws to detach the earth wires 3 Remove the screw on the partition plate R11079 Stop valve mounting plate R11081 Earth wires R11080 Partition plate ...

Page 17: ... pull the PCB ASSY when connecting the connectors 6 Disconnect the 4 connectors for electronic expansion valve coil and detach the clamp S20 room A blue S21 room B yellow S22 room C white S23 room D red When reassembling insert the clamp into the hole 7 Disconnect the connector for four way valve coil S80 Step Procedure Points S70 Ferrite core R11082 R11083 Fixing position for ferrite core of fan ...

Page 18: ... clamp S90 thermistor connector outdoor temperature outdoor heat exchanger discharge pipe 10 The wire harness is hooked under the electrical box Unhook it and pull out the clamp 11 The wire harness for the compressor is attached to the partition plate 1 by the clamp Step Procedure Points S93 S92 R11088 R11089 gas pipe thermistor connector liquid pipe thermistor connector thermistor connector S90 R...

Page 19: ...clamp 13 Disconnect the relay connector of the overload protector OL and the compressor 14 Slide the electrical box leftward to release the hook on the right side of the box 15 Lift up the electrical box to remove it Step Procedure Points R9624 Clamp R11093 R11094 Electrical box Hook R11095 ...

Page 20: ...sembling work Step Procedure Points Remove the electrical box 1 Removal of the PCB 1 Turn over the insulation sheet Peel off the filament tape 2 Unhook the 4 hooks and remove the electrical box cover 3 Disconnect the connectors S52 S102 from the service monitor PCB R11096 Insulation sheet Filament type R11097 Electrical box cover S102 R11098 S52 Service monitor PCB ...

Page 21: ...the hooks and remove the service monitor PCB 5 Remove the 2 screws of the terminal board and the earth wire 6 Remove the 2 screws of the power supply terminal 7 Release the hook on the right Step Procedure Points R11099 R11100 R11101 Earth wire R11102 R11103 ...

Page 22: ...onnectors A3 Red B3 Yellow C3 Blue D3 Orange 10 Release the 2 wire harnesses from the terminal board 11 Disconnect the relay connector for the reactor Remove the screw and remove the plastic band Step Procedure Points R11104 Terminal board R11105 C3 A3 D3 B3 R11106 Plastic band Reactor R11107 ...

Page 23: ...Procedure 21 12 Remove the 3 screws of the main PCB 13 Release the 4 hooks 14 Disconnect the 3 connectors for the compressor harnesses 15 Lift up and remove the main PCB Step Procedure Points R11108 Main PCB Hooks R11109 R11110 R11111 ...

Page 24: ...f PCBs Si12 996 22 Removal Procedure 16 Remove the 3 screws of the reactor and remove it 17 Remove the 3 screws of the radiation fin and remove it Step Procedure Points R11112 Reactor R11113 R11114 Radiation fin ...

Page 25: ...ore disassembling work Step Procedure Points 1 Removal of the electronic expansion valve coils 1 Pull out the electronic expansion valve coils 2 Removal of the thermistors 1 Peel off the putty and pull out the liquid pipe thermistors Be careful not to lose the fixtures R11119 Electronic expansion valve coils R11120 R11115 Liquid pipe thermistor R11116 Fixture Liquid pipe thermistor ...

Page 26: ...l not to lose the clips 3 Pull out the outdoor heat exchanger thermistor 4 At the back side open the outdoor temperature thermistor holder Step Procedure Points R11117 Gas pipe thermistor Clip R11118 Gas pipe thermistor R18645 Outdoor heat exchanger thermistor R11270 Outdoor temperature thermistor holder ...

Page 27: ...perature thermistor 6 Slightly open the sound blanket outer 7 Remove the sound blanket top upper 8 Remove the discharge pipe thermistor Step Procedure Points R11271 Outdoor temperature thermistor R11122 Sound blanket outer Sound blanket top upper R11123 R9635 Discharge pipe thermistor ...

Page 28: ...emoval of Coils Thermistors Si12 996 26 Removal Procedure 3 Removal of the four way valve coil 1 Remove the screw 2 Remove the four way valve coil Step Procedure Points R11124 R11125 Four way valve coil ...

Page 29: ...lanket Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw from the partition plate 1 2 Release the clamp 3 Remove the 2 screws R11126 Partition plate 1 R11127 Clamp R11128 ...

Page 30: ... Removal Procedure 4 Remove the partition plate 1 5 Open the sound blanket outer 6 Remove the sound blanket outer The sound blanket is fragile Step Procedure Points R11129 R11130 Velcro tape Sound blanket outer R11131 Sound blanket outer ...

Page 31: ...blanket top inner 8 Open the sound blanket inner The sound blanket is fragile Be careful of the notches of the compressor mount 3 locations 9 Remove the sound blanket inner Step Procedure Points R11168 Sound blanket top inner Compressor mount Sound blanket inner R11169 R11170 ...

Page 32: ...e sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Pull out the 3 lead wires with pliers U red V yellow W blue 3 Remove the overload protector OL Terminal cover R11171 R9471 W blue U red V yellow OL ...

Page 33: ... the cloth against becoming too hot keep it below 120 C In pulling the pipes be careful not to over tighten them with pliers The pipes may get deformed If the gas welding machine fails to remove the four way valve take the steps below 1 Disconnect the brazed pipe sections that are easy to separate and join together later 2 With a tube cutter cut off the internal pipes to easily take out the four w...

Page 34: ...Revision History Month Year Version Revised contents 02 2013 Si12 996 First edition ...

Page 35: ...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 accessories can result in water or refrigerant leakage electrical shock fire or explosion z Read the User s Manual carefully before using this product The User s Manual provides important safety instructi...

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