Daikin RYN50HV1A User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
5.0 kW Class
Outdoor Unit
Non-inverter
Pair Type
Si011086

Service Manual
Removal Procedure
Outdoor Unit
zHeat Pump
RYN50HV1A

Si011086
Removal Procedure 1
Table of Contents
1. Removal of Outer Panels ........................................................................2
2. Removal of Outdoor Fan / Fan Motor .....................................................6
3. Removal of Electrical Components .........................................................9
4. Removal of Partition Plate.....................................................................13
5. Removal of Thermistor ASSY ...............................................................15
6. Removal of Sound Blankets..................................................................19
7. Removal of Four Way Valve .................................................................20
8. Removal of Compressor .......................................................................23
Note: The illustrations may be slightly different depending on the model.

Removal of Outer Panels Si011086
2Removal Procedure
1. Removal of Outer Panels
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 panels.
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
1Remove the 4 screws
and remove the top
panel.
2Remove the 4 screws
and remove the
discharge grille.
(R13355)
Top panel
(R13356)
(R13357)
Discharge grille

Si011086 Removal of Outer Panels
Removal Procedure 3
The discharge grille has 4
hooks.
3Remove the 6 screws
of the front panel.
4Slide the shield plate to
the left to unfasten the
hooks and remove it.
Step Procedure Points
(R13358)
(R13359)
Front panel
(R13360)
Shield plate

Removal of Outer Panels Si011086
4Removal Procedure
5Unfasten the left side
hooks.
Lift the front panel while
pushing the left side panel
inward.
6Unfasten the right side
hook.
Lift the front panel and
unfasten the right side hook.
7Remove the front panel. When reassembling, fit the
right side of the front panel
first.
Step Procedure Points
(R13361)
(R13362)
(R13363)

Si011086 Removal of Outer Panels
Removal Procedure 5
2. Remove the stop valve
cover.
1Remove the screw of
the stop valve cover.
2Pull down the stop
valve cover to unfasten
the hooks and remove
it.
The stop valve cover has 6
hooks.
Step Procedure Points
Stop valve cover
(R13364)
(R13365)
(R13366)

Removal of Outdoor Fan / Fan Motor Si011086
6Removal Procedure
2. Removal of Outdoor Fan / 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
1Remove the nut and
remove the outdoor fan.
Nut size: M6
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
2Disconnect the relay
connector.
(R13367)
Outdoor fan
10 mm
(R12236)
(R13368)
(R13369)

Si011086 Removal of Outdoor Fan / Fan Motor
Removal Procedure 7
3Release the fan motor
lead wire from the hook.
4Remove the 2 screws
of the fan motor fixing
plate.
5Remove the fan motor
fixing plate.
Step Procedure Points
(R13370)
Fan motor lead wire
Fan motor fixing plate
(R13371)
(R13372)

Removal of Outdoor Fan / Fan Motor Si011086
8Removal Procedure
6Cut the clamp at 3
locations.
7Remove the 4 screws.
8Remove the fan motor.
Step Procedure Points
(R13373)
(R13374)
Fan motor
(R13375)

Si011086 Removal of Electrical Components
Removal Procedure 9
3. Removal of Electrical Components
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 PCB.
1Disconnect the
connectors [S5], [S7],
[S8], [S20], [S80],
[S90].
2Release the fan motor
lead wire.
3Pinch the PCB spacers
and pull out the PCB.
[S90]
[S7]
[S80]
[S20] [S8] [S5]
(R13376)
Fan motor lead wire (R13378)
(R13379)

Removal of Electrical Components Si011086
10 Removal Procedure
4Remove the PCB.
[S5] : AC fan motor
[S7] : terminal board
[S8] : compressor
[S20]: electronic expansion valve
[S80]: four way valve coil
[S90]: thermistor ASSY
Step Procedure Points
(R13380)
(R13381)
[S90]
[S20] [S8]
[S5]
[S80]
[S7]

Si011086 Removal of Electrical Components
Removal Procedure 11
2. Remove the magnetic
contactor.
1Pull out all the terminals
with pliers.
2Remove the 2 screws.
Remove the magnetic
contactor.
3. Remove the fan motor
capacitor.
1Pull out all the
terminals.
2Remove the screw.
Remove the fan motor
capacitor.
Step Procedure Points
(R13382)
Magnetic contactor
(R13383)
(R13384)
Fan motor capacitor (R13385)

Removal of Electrical Components Si011086
12 Removal Procedure
4. Remove the compressor
motor capacitor.
1Pull out all the
terminals.
2Remove the 2 screws.
3Remove the
compressor motor
capacitor.
Step Procedure Points
(R13389)
(R13390)
(R13391)
Compressor capacitor motor

Si011086 Removal of Partition Plate
Removal Procedure 13
4. Removal of Partition Plate
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Peel the sealing
material off.
2Remove the screw.
3Remove the 2 screws.
(R13392)
Sealing material
(R13393)
(R13394)

Removal of Partition Plate Si011086
14 Removal Procedure
4Disconnect the relay
connector.
5Release the harness of
the electronic
expansion valve from
the clamp.
6Release the harness of
the four way valve from
the mounting plate.
7Lift and remove the
partition plate.
When reassembling, make
sure to fit the hook.
Step Procedure Points
(R13395)
(R13396)
(R13397)
Mounting plate
(R13398)
Partition plate
(R13399)

Si011086 Removal of Thermistor ASSY
Removal Procedure 15
5. Removal of Thermistor ASSY
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Remove the 2 screws
(right).
2Remove the 2 screws
(back).
3Release the outdoor
temperature thermistor.
(R13400)
Right side panel
(R13402)
(R13403)

Removal of Thermistor ASSY Si011086
16 Removal Procedure
4Unfasten the hooks and
remove the right side
panel.
When reassembling, insert
the 2 hooks of the lower part
and the 1 hook of the upper
back.
5Release the harness
from the clamps.
Step Procedure Points
(R5272)
Hook
(R13423)
Hook
(R13404)
(R13405)
Clamp
Clamp

Si011086 Removal of Thermistor ASSY
Removal Procedure 17
6Cut the clamp of the
outdoor temperature
thermistor.
7Cut the clamp of the
outdoor heat exchanger
thermistor.
8Pull out the outdoor
heat exchanger
thermistor.
Be careful not to lose the clip
for the thermistor.
Step Procedure Points
(R13406)
(R13407)
(R13408)
(R3264)
Clip

Removal of Thermistor ASSY Si011086
18 Removal Procedure
9Release the discharge
pipe thermistor.
Remove the thermistor
ASSY.
Be careful not to lose the clip
for the thermistor.
Step Procedure Points
(R13409)
(R12287)
Clip