Daikin 5MKS100LSG - User Manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Multi Type
9.0/9.5/10.0/10.5/11.0 kW Class
32000/36000/38000 Btu/h Class
Si121293EC

Summary

Outer Panels

Step 1: Unfasten Hooks (Upper;Middle)

Unfasten the 3 hooks at the upper and 3 at the middle of the panel.

Step 2: Remove Suction Grille

Unfasten bottom hooks and remove the suction grille.

Step 3: Remove Top Panel

Remove 9 screws and detach the top panel.

Step 4: Remove Right Side Panel

Remove 5 screws and detach the right side panel.

Step 5: Remove Front Panel (2)

Remove the screw and detach front panel (2).

Step 6: Remove Discharge Grille Screws

Remove the 4 screws on the discharge grille.

Step 7: Unfasten Discharge Grille Hooks

Slide discharge grille upward and unfasten 4 hooks.

Step 8: Remove Discharge Grille

Remove the discharge grille.

Step 9: Remove Front Panel (1)

Remove 7 screws and detach front panel (1).

Outdoor Fan; Fan Motor

Step 1: Detach Fan Motor Lead Wire Clamp

Detach the clamp for the fan motor lead wire.

Step 2: Disconnect Fan Motor Connector

Disconnect the connector [S70] for the fan motor.

Step 3: Release Fan Motor Lead Wire

Release the fan motor lead wire from the 3 hooks.

Step 4: Remove Outdoor Fan

Remove the nut and then the outdoor fan.

Step 1 (cont.): Remove Fan Motor Fixing Frame

Remove 2 screws and the fan motor fixing frame.

Step 2: Cut Clamps

Cut the 2 clamps.

Step 3: Remove Fan Motor

Remove 4 screws and then the fan motor.

Electrical Box

Step 1: Disconnect Wires

Disconnect connecting wires, power supply wire.

Step 2: Disconnect Room Wires

Disconnect connecting wires for rooms A through E.

Step 3: Detach Earth;Ground Wire

Remove the screw to detach the earth/ground wire.

Step 4: Remove Wire Fixture Screws

Remove the 8 screws on the wire fixtures.

Step 5: Remove Insulation Sheets

Remove the insulation sheets.

Step 6: Remove Partition Plate (2)

Remove 2 screws and then the partition plate (2).

Step 2 (cont.): Remove Rear Panel

Remove the rear panel.

Step 2 (cont.): Remove Rear Panel Screws

Remove the 6 screws from the rear panel.

Step 2 (cont.): Unfasten Rear Panel Hooks

Slide rear panel upward to unfasten 2 hooks.

Step 3: Release Thermistor Holder

Unfasten 2 hooks to release outdoor temperature thermistor holder.

Step 4: Remove Outdoor Temperature Thermistor

Unfasten 2 hooks, open holder, and pull out thermistor.

Step 1 (cont.): Detach Fan Motor Lead Wire Clamp

Detach clamp from fan motor lead wire.

Step 2 (cont.): Disconnect Connector [S70]

Disconnect the connector [S70].

Step 3 (cont.): Release Fan Motor Lead Wire

Release fan motor lead wire from 3 hooks.

Step 4 (cont.): Detach Clamps

Detach the 3 clamps.

Step 5 (cont.): Disconnect Expansion Valve Coils

Disconnect 5 connectors for electronic expansion valve coils.

Step 6: Disconnect Thermistor Connectors

Disconnect connectors [S92] and [S93].

Step 7: Disconnect Four Way Valve Coil Connector

Disconnect connector [S80] and pull out clamp.

Step 8: Disconnect Thermistor ASSY Connector

Disconnect connector [S90].

Step 9: Pull Out Thermistor ASSY Harness Clamps

Pull out 2 clamps fixing thermistor ASSY harnesses.

Step 10: Disconnect Overload Protector Connector

Disconnect connector [S40].

Step 11: Disconnect Compressor Relay Connector

Disconnect the relay connector for the compressor.

Step 12: Remove Electrical Box Screws

Remove the 2 screws.

Step 13: Remove Electrical Box

Slide the electrical box to the left and remove it.

PCBs

Step 1: Remove Electrical Box Cover

Unfasten 4 hooks and remove the electrical box cover.

Step 2: Disconnect Service Monitor PCB Connectors

Disconnect connectors [S501], [S502], [S503] from service monitor PCB.

Step 3: Remove Service Monitor PCB

Detach 4 projections and remove the service monitor PCB.

Step 1 (cont.): Remove Terminal Board Screws

Remove 4 screws of the terminal board.

Step 2 (cont.): Remove Power Supply Terminal Board Screws

Remove 2 screws of the power supply terminal board.

Step 3 (cont.): Pass Harnesses Through Terminal Board

Pass harnesses through the hole on the terminal board.

Step 4: Disconnect Terminal Board Connector

Disconnect the connector [S].

Step 5: Disconnect Room B Connectors

Disconnect the 2 lower connectors (a) and (b) of the room B.

Step 6: Remove Terminal Board

Remove the terminal board.

Step 1 (cont.): Remove Control PCB

Remove the control PCB.

Step 1 (cont.): Disconnect Inverter PCB Connectors

Disconnect [HL402] and [HN402] from inverter PCB.

Step 2 (cont.): Disconnect PCB Connectors

Disconnect connectors [DCP2] and [DCM2].

Step 3 (cont.): Disconnect Control PCB Connectors

Disconnect connectors [S401] and [S411].

Step 4 (cont.): Disconnect Control PCB Harnesses

Disconnect connectors [S206], [S209], [S210] from control PCB.

Step 5 (cont.): Remove Earth;Ground Wire Screw

Remove screw of earth/ground wire under electrical box.

Step 6 (cont.): Remove Control PCB Fasteners

Remove 2 screws and unfasten 4 hooks.

Step 7 (cont.): Lift and Remove Control PCB

Lift up and remove the control PCB.

Step 4 (cont.): Disconnect Compressor Harness

Disconnect compressor harness connectors [U], [V], [W].

Step 2 (cont.): Remove Inverter PCB Screws

Remove the 8 screws.

Step 3 (cont.): Remove Inverter PCB

Unfasten hook and remove the inverter PCB.

Coils; Thermistors

Step 1: Remove Expansion Valve Coils

Remove electronic expansion valve coils.

Step 1 (cont.): Cut Expansion Valve Coil Clamps

Cut the 3 clamps.

Step 1 (cont.): Pull Out Expansion Valve Coils

Pull out the electronic expansion valve coils.

Step 2: Remove Thermistors

Remove thermistors.

Step 2 (cont.): Cut and Pull Gas Pipe Thermistors

Cut clamps and pull out gas pipe thermistors.

Step 2 (cont.): Remove Liquid Pipe Thermistors

Peel off putty and pull out liquid pipe thermistors.

Step 3: Remove Heat Exchanger Thermistor

Cut 2 clamps and pull out outdoor heat exchanger thermistor.

Step 4: Remove Outdoor Temperature Thermistor

Pull out the outdoor temperature thermistor through the hole.

Step 5: Remove Discharge Pipe Thermistor

Open sound blanket and remove discharge pipe thermistor.

Sound Blankets

Step 1: Pull Compressor Harness Clamp

Pull out compressor harness clamp from partition plate.

Step 2: Remove Partition Plate

Remove 4 screws and then the partition plate.

Step 3: Remove Outer Top Sound Blanket

Remove the sound blanket (outer top).

Step 4: Remove Outer Sound Blanket

Remove the sound blanket (outer).

Step 5: Remove Inner Top Sound Blanket

Remove the sound blanket (inner top).

Step 6: Remove Inner Sound Blanket

Remove the sound blanket (inner).

Four Way Valve

Step 1: Remove Peripheries

Remove surrounding components before valve removal.

Step 1 (cont.): Remove Four Way Valve Coil

Remove the screw and then the four way valve coil.

Step 2: Remove Terminal Cover

Remove the terminal cover.

Step 3: Remove Overload Protector

Unfasten hook and remove the overload protector.

Step 4: Disconnect Compressor Harness Terminals

Disconnect the terminals of the compressor harness.

Step 5: Remove Lead Wire Bushing

Remove the bushing for the lead wire.

Step 2 (cont.): Remove Four Way Valve

Remove the four way valve.

Compressor

Step 1: Remove Terminal Cover

Remove the terminal cover.

Step 2: Remove Overload Protector

Unfasten hook and remove the overload protector.

Step 3: Disconnect Compressor Harness Terminals

Disconnect the terminals of the compressor harness.

Step 4: Remove Lead Wire Bushing

Remove the bushing for the lead wire.

Step 5: Remove Compressor Nuts (1)

Remove the 3 nuts of the compressor.

Step 6: Remove Putty

Remove the putty.

Step 7: Disconnect Discharge Side Pipe

Heat brazed part of discharge pipe and disconnect.

Step 8: Disconnect Suction Side Pipe

Heat brazed part of suction pipe and disconnect.

Step 9: Remove Compressor Nuts (2)

Remove the 3 nuts of the compressor.

Step 10: Lift and Remove Compressor

Lift up the compressor and remove it.

Daikin 5MKS100LSG Specifications

General

Model	5MKS100LSG
Category	Air Conditioner
Cooling Capacity	10.0 kW
Heating Capacity	11.2 kW
Energy Efficiency Ratio (EER)	3.21
Power Source	220-240V, 50Hz
Refrigerant	R32
Maximum number of connectable indoor units	5
Outdoor Unit Noise Level	52 dB(A)
Operating Temperature (Cooling)	-10 to 46°C
Type	Multi Split System
Indoor Unit Dimensions (HxWxD)	Dependent on connected indoor unit model
Indoor Unit Weight	Dependent on connected indoor unit model
Indoor Unit Noise Level	Varies by model