Related Manuals for Daikin 3MWKS80LV1
Summary of Contents for Daikin 3MWKS80LV1
- Page 1 Si121557E REMOVAL PROCEDURE S E R V I C E M A N U A L 80 kW Class Outdoor Unit Inverter Multi Type...
- Page 2 Service Manual Removal Procedure Outdoor Unit Cooling Only 3MWKS80LV1 Water Heater TUL-55KVM TUL-75KVM TUL-100KVM TUR-55KVM TUR-75KVM TUR-100KVM...
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Page 3: Table Of Contents
Si121557E Table of Contents 1. Outdoor Unit....................2 1.1 Outer Panels / Outdoor Fan ..............2 1.2 Fan Motor ....................10 1.3 Electrical Box..................12 1.4 PCBs ......................18 1.5 Reactor....................24 1.6 Coils / Thermistors .................25 1.7 Sound Blankets ..................27 1.8 Compressor....................29 2. Water Heater..................31 Note: The illustrations may be slightly different depending on the model. -
Page 4: Outdoor Unit
Outdoor Unit Si121557E 1. Outdoor Unit Outer Panels / Outdoor Fan Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points The hooks are secured in 1. Remove the suction grille. Hook the clearances of the Unfasten the 5 hooks. - Page 5 Si121557E Outdoor Unit Step Procedure Points Slide the front panel (2) downward to release the hook. Hook (R21942) Remove the front panel (2). (R13639) 4. Remove the right side panel. Remove the 2 screws. Right side panel (R13640) Removal Procedure...
- Page 6 Outdoor Unit Si121557E Step Procedure Points Slide the right side panel downward to unfasten the 2 hooks on the back side. (R13645) Hook (R6378) Hook (R13646) Removal Procedure...
- Page 7 Si121557E Outdoor Unit Step Procedure Points 5. Remove the outdoor fan Remove the discharge grille Front and the front panel (1). and outdoor fan first to Panel (1) remove the front panel (1). Remove the 4 screws on the discharge grille. Discharge grille (R13641) Slide the discharge...
- Page 8 Outdoor Unit Si121557E Step Procedure Points Remove the 5 screws on the front panel (1). (R18785) Release the hook and remove the front panel (1). (R17716) 6. Remove the rear panel. Remove the screw on the partition plate (2) and remove the partition plate (2).
- Page 9 Si121557E Outdoor Unit Step Procedure Points Remove the 5 screws and remove the wire fixture. Wire fixture (R21944) Disconnect the connecting wires. (R13652) Disconnect the [S402]: water heater thermistor [S402] connector [S402]. (R22025) Removal Procedure...
- Page 10 Outdoor Unit Si121557E Step Procedure Points Remove the screw of When reassembling, attach the resin clamp. the resin clamp as below. Resin clamp <Correct> (R13654) <Wrong> (R22023) Remove the water heater thermistor. Water heater thermistor (R15740) Pull out the holder of The holder is secured in the the outdoor clearances of the outdoor...
- Page 11 Si121557E Outdoor Unit Step Procedure Points Release the thermistor wire from the groove. Groove (R10389) Remove the 5 screws. Rear panel (R21945) Lift the rear panel upward to unfasten the 2 hooks. Remove the rear panel. (R21946) Removal Procedure...
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Page 12: Fan Motor
Outdoor Unit Si121557E Fan Motor 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]. (R13662) ★... - Page 13 Si121557E Outdoor Unit 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.
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Page 14: Electrical Box
Outdoor Unit Si121557E Electrical Box 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 15 Si121557E Outdoor Unit 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] Clamp connector [S92]. (each room, water heater) Pull out the clamp. (R13668) Disconnect the [S90]: thermistor ASSY...
- Page 16 Outdoor Unit Si121557E 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 17 Si121557E Outdoor Unit Step Procedure Points 11 Remove the screw on the stop valve mounting plate. Stop valve mounting plate (R13674) 12 Remove the screw on the partition plate (1). Partition plate (1) (R13675) 13 Remove the 2 screws to detach the earth / ground wires.
- Page 18 Outdoor Unit Si121557E Step Procedure Points 14 Cut the clamp. (R13677) 15 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 19 Si121557E Outdoor Unit Step Procedure Points 16 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) 17 Lift up the electrical box Electrical box and remove it.
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Page 20: Pcbs
Outdoor Unit Si121557E PCBs 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 Filament tape tape. (R13681) Unfasten the 4 hooks The hooks are marked with ▼... - Page 21 Si121557E Outdoor Unit Step Procedure Points Disconnect the [S404]: to main PCB [S404] connector [S404]. SUPPLY POWER (R13684) Remove the screw and release the earth / ground wire. SUPPLY POWER (R13685) Pull out the 6 spacers with pliers and remove the filter PCB.
- Page 22 Outdoor Unit Si121557E 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 23 Si121557E Outdoor Unit Step Procedure Points Unfasten the hook. (R13691) Open the terminal board. Terminal board (R13692) Disconnect the connectors. yellow blue blue white black black white brown (R15742) Removal Procedure...
- Page 24 Outdoor Unit Si121557E 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 25 Si121557E Outdoor Unit 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...
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Page 26: Reactor
Outdoor Unit Si121557E Reactor 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 27: Coils / Thermistors
Si121557E Outdoor Unit Coils / Thermistors 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) Disconnect the relay... - Page 28 Outdoor Unit Si121557E 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)
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Page 29: Sound Blankets
Si121557E Outdoor Unit Sound Blankets 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 lower). - Page 30 Outdoor Unit Si121557E 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...
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Page 31: Compressor
Si121557E Outdoor Unit Compressor Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine. - Page 32 Outdoor Unit Si121557E Step Procedure Points Disconnect the 3 lead Overload protector Lead wires wires of the compressor. Remove the overload protector. (R22026) (R12436) Remove the bushing. Bushing (R13716) Remove the 3 nuts. (R13718) Heat up the brazed part of the discharge side and disconnect the part (a).
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Page 33: Water Heater
Si121557E Water Heater 2. Water Heater 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 screws Heater cover and remove the heater cover. (R13719) Pull out the water heater thermistor. - Page 34 Revision History Month / Year Version Revised contents 05 / 2015 Si121557E First edition...
- Page 35 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.