Daikin 3MKS71ESG User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
6.8/7.1/7.5 kW Class
Outdoor Unit
Inverter
Multi Type
Si121294EA

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only zHeat Pump
3MKS71ESG 3MXS68KVM
3MKS71FSG
3MKS75KVM

Si121294EA
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Electrical Box ..........................................................................................3
3. PCBs .......................................................................................................7
4. Fan Motor..............................................................................................10
5. Sound Blankets .....................................................................................11
6. Coils / Thermistors ................................................................................13
7. Four Way Valve.....................................................................................15
8. Distributor..............................................................................................16
9. Compressor...........................................................................................17
Note: The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.

Outer Panels Si121294EA
2Removal Procedure
1. Outer Panels
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1Remove the 4 screws of
the top panel and the 6
screws of the front panel.
2Remove the 4 screws of
the discharge grille.
3Remove the screw of the
shield plate.
4Unfasten the 2 hooks
and remove the shield
plate.
5Remove the 2 screws of
the stop valve cover.
Top panel
Discharge grille Front panel
(R10351)
Shield plate
(R11204)
(R17754)
Hook
(R17931)
Stop valve
cover

Si121294EA Electrical Box
Removal Procedure 3
2. Electrical Box
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1Disconnect the
connectors for the
electronic expansion
valve coils [S20] [S21]
[S22].
[S20]: white
[S21]: red
[S22]: blue
2Remove the connector
for the four way valve
coil [S80].
The cooling only models
have no harness for [S80].
When reassembling, insert
the clamp into the hole as
below.
3Disconnect the
connectors for the
thermistors [S90] [S92]
[S93] and the connector
for the overload
protector [S40].
[S90]: thermistors
(outdoor temperature,
outdoor heat exchanger,
discharge pipe)
[S92]: gas pipe thermistors
[S93]: liquid pipe thermistors
When reassembling, insert
the clamp of the thermistor
ASSY harness into the hole
as below.
When reassembling, insert
the clamp of the electronic
expansion valve coil harness
into the hole as below.
4Disconnect the relay
connector of the
compressor.
[S20] [S21] [S22]
(R16025)
(R11729)
[S80]
Clamp
(R17397)
[S40]
(R2168)
[S90] [S92] [S93]
Thermistor ASSY harness
(R17797)
for [S92]
for [S93]
Electronic expansion
valve coil harness
(R17798)
(R2169)