Daikin 3MWKS30KV1S Service Manual Removal Procedure

80 kw class, 30000 btu/h class

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REMOVAL
PROCEDURE
S E R V I C E
80 kW Class
30000 Btu/h Class
Outdoor Unit
Inverter
Multi Type
Si121177
M A N U A L

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Table of Contents
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Summary of Contents for Daikin 3MWKS30KV1S

  • Page 1 Si121177 REMOVAL PROCEDURE S E R V I C E M A N U A L 80 kW Class 30000 Btu/h Class Outdoor Unit Inverter Multi Type...
  • Page 2 Service Manual Removal Procedure Outdoor Unit Applicable Models Cooling Only 3MWKS30KV1S 3MWKS80KV1 Water Heater TUL-55KVM TUL-75KVM TUL-100KVM TUR-55KVM TUR-75KVM TUR-100KVM...
  • Page 3: Table Of Contents

    Si121177 Table of Contents 1. Outdoor Unit....................2 1.1 Removal of Outer Panels / Outdoor Fan ..........2 1.2 Removal of Fan Motor................15 1.3 Removal of Electrical Box ..............17 1.4 Removal of PCBs ...................23 1.5 Removal of Reactor................29 1.6 Removal of Coils / Thermistors ..............30 1.7 Removal of Sound Blankets ..............32 1.8 Removal of Compressor.................34 2.
  • Page 4: Outdoor Unit

    Outdoor Unit Si121177 1. Outdoor Unit Removal of Outer Panels / Outdoor Fan Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Features (R9036) 2. Remove the suction grille. The hooks are secured in Rear side the clearances of the...
  • Page 5 Si121177 Outdoor Unit Step Procedure Points Slide the suction grille Hook downwards to unfasten the 3 top hooks. (R13636) Remove the suction grille. (R6372) 3. Remove the top panel. Top panel Remove the 4 screws on the back and the screw on the left side.
  • Page 6 Outdoor Unit Si121177 Step Procedure Points Remove the 2 screws on the front and the screw on the right side panel. Right side panel (R9037) Lift the top panel and remove it. (R9038) Removal Procedure...
  • Page 7 Si121177 Outdoor Unit Step Procedure Points 4. Remove the front panel This screw is M5 × 16 (2). Front Panel (2) Remove the 5 screws. Front Panel (1) (R13637) Slide the front panel (2) downwards to release the hook. (R9043) Hook (R13638) Removal Procedure...
  • Page 8 Outdoor Unit Si121177 Step Procedure Points Remove the front panel (2). (R13639) 5. Remove the right side panel. Remove the 2 screws. Right side panel (R13640) Removal Procedure...
  • Page 9 Si121177 Outdoor Unit Step Procedure Points Slide the right side panel downwards to unfasten the 2 hooks on the back side. (R13645) Hook (R6378) Hook (R13646) Removal Procedure...
  • Page 10 Outdoor Unit Si121177 Step Procedure Points 6. Remove the outdoor fan Remove the discharge grille and the front panel (1). and outdoor fan first to remove the front panel (1). Remove the 4 screws Front on the discharge grille. Panel (1) Discharge grille (R13641) Slide the discharge...
  • Page 11 Si121177 Outdoor Unit Step Procedure Points Remove the nut and Nut size : M8 remove the outdoor fan. Outdoor fan 13 mm (R12301) When reassembling, align mark of the outdoor fan with the D-cut section of (R13644) the motor shaft. Remove the 3 screws on the front panel (1).
  • Page 12 Outdoor Unit Si121177 Step Procedure Points Remove the front panel (1). Be sure to detach the front panel (1) carefully so as not to deform it. (R13649) Removal Procedure...
  • Page 13 Si121177 Outdoor Unit Step Procedure Points 7. Remove the rear panel. Remove the screw on the partition plate (2) and remove the partition plate (2). Rear panel Partition plate (2) (R13650) Remove the 5 screws and remove the wire fixing plate. Wire fixing plate (R13651)
  • Page 14 Outdoor Unit Si121177 Step Procedure Points Disconnect the [S402]: water heater thermistor connector [S402]. [S402] (R13653) Remove the screw of When reassembling, attach the resin clamp. the resin clamp as below. Resin clamp <Good> (R13654) <Wrong> Remove the water heater thermistor. (R15739) Water heater...
  • Page 15 Si121177 Outdoor Unit Step Procedure Points Release the thermistor wire from the groove. Groove (R10389) Remove the 3 screws Rear panel on the rear panel. (R13656) Remove the screw on the bottom frame. (R13657) Removal Procedure...
  • Page 16 Outdoor Unit Si121177 Step Procedure Points Remove the screw on the stop valve mounting plate. Stop valve mounting plate (R13658) Lift the rear panel upwards to unfasten the 2 hooks. Hook (R13659) Remove the rear panel. (R13660) Removal Procedure...
  • Page 17: Removal Of Fan Motor

    Si121177 Outdoor Unit Removal of Fan Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Cut the 2 clamps. Clamp (R13661) Disconnect the [S70]: fan motor [S70] connector [S70].
  • Page 18 Outdoor Unit Si121177 Step Procedure Points Remove the 2 lower Be sure to remove the lower screws of the fan motor. screws first. If the upper screws are removed first, the Remove the 2 upper fan motor may tilt or fall screws.
  • Page 19: Removal Of Electrical Box

    Si121177 Outdoor Unit Removal of Electrical Box Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Disconnect the [S70]: fan motor [S70] connector [S70]. (R13662) Release the fan motor : When reassembling, do not Fan motor lead wire from the 5...
  • Page 20 Outdoor Unit Si121177 Step Procedure Points Disconnect the [S80]: four way valve coil [S80] connector [S80]. Pull out the clamp. Clamp (R13667) Disconnect the [S92]: gas pipe thermistors [S92] connector [S92]. (each room, water heater) Clamp Pull out the clamp. (R13668) Disconnect the [S90]: thermistor ASSY...
  • Page 21 Si121177 Outdoor Unit Step Procedure Points Release the harnesses Hook of the thermistor ASSY from the hook on the bottom of the electrical box. Pull out the clamp. Clamp (R13670) Disconnect the [S40]: overload protector / high Clamp [S40] connector [S40]. pressure switch Pull out the clamp.
  • Page 22 Outdoor Unit Si121177 Step Procedure Points Remove the screw on the stop valve mounting plate. Stop valve mounting plate (R13674) Remove the screw on the partition plate (1). Partition plate (1) (R13675) Remove the 2 screws to detach the earth wires.
  • Page 23 Si121177 Outdoor Unit Step Procedure Points Cut the clamp. (R13677) Pull out the outdoor Be careful not to lose the clip heat exchanger for the thermistor. thermistor. Clip (R13763) Outdoor heat exchanger thermistor (R13678) Removal Procedure...
  • Page 24 Outdoor Unit Si121177 Step Procedure Points Release the discharge Be careful not to lose the clip Sound blanket pipe thermistor under for the thermistor. (top upper) the sound blanket (top upper). Clip (R13764) Discharge pipe thermistor (R13679) Lift up the electrical box Electrical box and remove it.
  • Page 25: Removal Of Pcbs

    Si121177 Outdoor Unit Removal of PCBs 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 electrical box cover. Peel off the filament tape. Filament tape (R13681) Unfasten the 4 hooks...
  • Page 26 Outdoor Unit Si121177 Step Procedure Points Disconnect the [S404]: to main PCB [S404] connector [S404]. SUPPLY POWER (R13684) Remove the screw and release the earth. SUPPLY POWER (R13685) Pull out the 6 spacers with pliers and remove the filter PCB. Filter PCB POWER SUPPLY...
  • Page 27 Si121177 Outdoor Unit Step Procedure Points 3. Remove the service [S102]: to main PCB [S102] monitor PCB. Disconnect the connector [S102]. (R13687) Disconnect the [S52]: to main PCB connector [S52]. [S52] (R13688) Unfasten the 2 hooks and remove the service monitor PCB.
  • Page 28 Outdoor Unit Si121177 Step Procedure Points Unfasten the hook. (R13691) Open the terminal board. Terminal board (R13692) Disconnect the connectors. yellow blue blue white black white brown black (R15742) Removal Procedure...
  • Page 29 Si121177 Outdoor Unit Step Procedure Points Disconnect the 2 [HR1]: white connectors for the [HR2]: blue reactor [HR1], [HR2]. [HR1] [HR2] (R13694) Release the harnesses from the hook. (R13695) Release the harnesses from the hook. (R13696) Remove the 3 screws. (R13697) Removal Procedure...
  • Page 30 Outdoor Unit Si121177 Step Procedure Points Unfasten the 4 hooks and remove the main PCB. Main PCB [S90] [S92] [S70] [S21] [S20] [S51] [S40] [S22] [S93] [S80] [S10] [HR2] [HR1] (R13698) Removal Procedure...
  • Page 31: Removal Of Reactor

    Si121177 Outdoor Unit Removal of Reactor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the screw of the resin clamp. Resin clamp (R13699) Remove the 3 screws of the reactor.
  • Page 32: Removal Of Coils / Thermistors

    Outdoor Unit Si121177 Removal of Coils / Thermistors Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the screw and remove the four way valve coil. Four way valve coil (R15743)
  • Page 33 Si121177 Outdoor Unit Step Procedure Points Pull out the electronic expansion valve coils. Electronic expansion valve coil (R13704) Cut the clamps of the gas pipe thermistor. (R13705) Pull out the gas pipe thermistors. Gas pipe thermistors for each room Gas pipe thermistor for water heater (R15744)
  • Page 34: Removal Of Sound Blankets

    Outdoor Unit Si121177 Removal of Sound Blankets Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 2 sound The sound blanket is fragile. blankets (top upper) Carefully pass the blanket (top inner).
  • Page 35 Si121177 Outdoor Unit Step Procedure Points Remove the sound The sound blanket is fragile. blanket (inner) through Be careful of the notches of the mufflers. the compressor mount (3 locations). Sound blanket (inner) (R13713) Removal Procedure...
  • Page 36: Removal Of Compressor

    Outdoor Unit Si121177 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 Remove the terminal Terminal cover. cover (R13714) Disconnect the 3 lead Overload protector Lead wires wires of the...
  • Page 37 Si121177 Outdoor Unit Step Procedure Points Before working, make sure that the refrigerant Warning gas is 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 38: Removal Of Water Heater

    Removal of Water Heater Si121177 2. Removal of Water Heater 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 2 screws Heater cover and remove the heater cover.
  • Page 39 Revision History Month / Year Version Revised contents 08/2012 Si121177 First edition...
  • Page 40 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.

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