Daikin RN25HV1A User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Non-Inverter
Pair Type
2.5/3.5 kW Class
Si01-980

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only zHeat Pump
RN25HV1A RYN35HV1A
RN35HV1A

Si01-980
Removal Procedure 1
Table of Contents
1. Removal of Panels / Fan Motor...............................................................2
2. Removal of Electrical Components (Pattern 1) .......................................9
3. Removal of Electrical Components (Pattern 2) .....................................15
4. Removal of Sound Blanket....................................................................19
5. Removal of Compressor .......................................................................20
Note: The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.

Removal of Panels / Fan Motor Si01-980
2Removal Procedure
1. Removal of Panels / 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
1. External appearance
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
The stop valve cover is
united with the shield plate.
When reassembling, make
sure to fit the 5 hooks.
1Remove the screw of
the stop valve cover.
Pull down the stop
valve cover and remove
it.
DAIKIN
INVERTER
(R7186)
(R3236)
Stop
valve
cover
(R7188)
Shield plate
Hooks
(R7189)

Si01-980 Removal of Panels / Fan Motor
Removal Procedure 3
2. Remove the panels.
1Remove the 3 screws
and lift the top panel.
2Remove the 8 screws
of the front panel.
3Release the 4 hooks.
Pull and remove the
front panel.
The front panel has 4 hooks.
Step Procedure Points
DAIKIN
INVERTER
Top panel
(R11415)
DAIKIN
INVERTER
(R11417)
Front panel
Hooks
(R11418)

Removal of Panels / Fan Motor Si01-980
4Removal Procedure
4Remove the 4 screws
of the discharge grille.
The discharge grille can be
removed with the front grille
on.
5Remove the discharge
grille.
The discharge grille has 4
hooks.
3. Remove the fan motor. Wrench size: 10 mm
1Unscrew the nut (M6) of
the outdoor fan with a
wrench.
Step Procedure Points
DAIKIN
INVERTER
(R11419)
Discharge grille
Hooks
(R11420)
Outdoor fan (R11421)

Si01-980 Removal of Panels / Fan Motor
Removal Procedure 5
2Remove the outdoor
fan.
Align the mark of the
outdoor fan with the D-cut
section of the motor shaft
when reassembling.
3Disconnect the
connector for the fan
motor.
4Release the fan motor
lead wire from the fixing
hook.
Put the lead wire through the
back of the motor when
reassembling. (so as not to
be entangled with the
outdoor fan)
Step Procedure Points
D-cut
(R11422)
(R11416)
Fan motor
lead wire
(R11423)
(R3249)
Lead wire Outdoor fan

Removal of Panels / Fan Motor Si01-980
6Removal Procedure
5
6
Remove the screw of
the fan motor fixing
frame.
Remove the fan motor
fixing frame.
When reassembling, fit the 2
lower hooks into the bottom
frame.
Step Procedure Points
Fan motor fixing frame
(R11424)
(R11425)
(R7206)

Si01-980 Removal of Panels / Fan Motor
Removal Procedure 7
7Release the fan motor
lead wire from the fixing
hooks.
8Remove the 4 screws
of the fan motor and
remove the fan motor.
Step Procedure Points
(R11426)
(R11427)
Fan motor

Removal of Panels / Fan Motor Si01-980
8Removal Procedure
4. Remove the right side
panel.
1Lift up and remove the
guard net.
2Remove the 7 screws
on the right side panel.
3Release the hook. When reassembling, make
sure to engage the hook.
4Lift up the right side
panel and remove it.
Step Procedure Points
Guard net
(R11428)
Right side panel
(R11429)
(R11430)
(R11431)

Si01-980 Removal of Electrical Components (Pattern 1)
Removal Procedure 9
2. Removal of Electrical Components (Pattern 1)
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Remove the electrical
component ASSY.
Preparation
Remove the top panel.
Disconnect the connector for
the fan motor.
1Lift and remove the
sound blanket (top).
2Remove the nut and
remove the terminal
cover.
3Disconnect the
compressor lead wires
with a flat screwdriver.
S(W) : Yellow
C(U) : Blue
R(V) : Red
4Lift and remove the
electrical component
ASSY.
(R11439)
Sound blanket
(top)
(R11440)
Terminal
cover
(R11441)
Compressor
lead wire
S(W)
R(V)
(R6761)
C(U)
Electrical component ASSY
(R11442)

Removal of Electrical Components (Pattern 1) Si01-980
10 Removal Procedure
2. Remove the electrical
components.
1Disconnect the 3
connectors of the
compressor motor
capacitor (C1R).
2Remove the screw and
remove the compressor
motor capacitor.
3Cut the clamp.
4Disconnect the 5
connectors connected
to the diode bridge
(V1R).
Step Procedure Points
(R11450)
Compressor
motor capacitor
C1R
K1M(4): red
(R10855)
Compressor (R):
red
Compressor (S):
yellow
(R11451)
(R11452)
(R11453)
C2R: white
X2M(N):
white
K1M(A1):
black X1M(2):
white
K1M(A2):
black

Si01-980 Removal of Electrical Components (Pattern 1)
Removal Procedure 11
5Remove the screw and
remove the diode
bridge.
6Disconnect the 2
connectors of the fan
motor capacitor (C2R).
Step Procedure Points
V1R
K1M(A1): black
K1M(A2): black
X2M(N): white
X1M(2): white
C2R: white
(R11490)
Diode bridge
(R11454)
(R11455)
Fan motor
capacitor
C2R
X11A
V1R: white
X2M(N): white
K1M(6): black
white
red
(R11489)

Removal of Electrical Components (Pattern 1) Si01-980
12 Removal Procedure
7Remove the screw and
remove the fan motor
capacitor.
8Disconnect the
connector of the surge
absorber (F1S).
9Remove the screw and
remove the surge
absorber.
10 Disconnect all the
connectors of the
magnetic contactor.
Step Procedure Points
(R11456)
(R11457)
Surge absorber
Surge absorber
(R11458)
(R11459)
Magnetic contactor

Si01-980 Removal of Electrical Components (Pattern 1)
Removal Procedure 13
11 Remove the 2 screws
and remove the
magnetic contactor.
12 Open the fuse holder.
Take the fuse out.
Step Procedure Points
(R11460)
Fuse
Fuse holder
(R11461)
C1R
X11A
K1M
V1R X1M
X2M
Fuse
C2R
(R11487)
F1S
C1R
X11A
X2M
X1M
K1M
C2R
V1R
(R11488)

Removal of Electrical Components (Pattern 1) Si01-980
14 Removal Procedure
Step Procedure Points
X1M(2)
Earth: green / yellow
X1M(1): red
X2M(GRD)
X2M(N)
X1M(3): black
X2M(N): black
X1M(3)
K1M(3): black
X2M(L)
A
A
C2R: white
V1R: white
Lower
SECT. A-A
X1M(GRD): green / yellow
F1S: red
K1M(5): black
Upper
X1M(GRD)
X1M(1)
X2M(L): red
K1M(1): red
L N
123
X1M
X2M
(R11491)
X2M(GRD):
green / yellow

Si01-980 Removal of Electrical Components (Pattern 2)
Removal Procedure 15
3. Removal of Electrical Components (Pattern 2)
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Remove the electrical
component ASSY.
Preparation
Remove the top panel.
Disconnect the connector for
the fan motor.
1Lift and remove the
sound blanket (top).
2Remove the nut and
remove the terminal
cover.
3Disconnect the
compressor lead wires
with a flat screwdriver.
S(W) : Yellow
C(U) : Blue
R(V) : Red
4Remove the screw and
remove the four way
valve coil.
(R11432)
Sound blanket
(top)
(R11433)
Terminal cover
(R11434)
Compressor lead wire
S(W)
R(V)
(R6761)
C(U)
(R11435)
Four way valve coil

Removal of Electrical Components (Pattern 2) Si01-980
16 Removal Procedure
5Pull out the outdoor
heat exchanger
thermistor.
Pay attention so as not to
lose the clip.
6Cut the clamp.
7Lift and remove the
electrical component
ASSY.
Step Procedure Points
(R11436)
Outdoor heat
exchanger
thermistor (R11468)
Clip
(R11437)
Electrical component ASSY
(R11438)

Si01-980 Removal of Electrical Components (Pattern 2)
Removal Procedure 17
2. Remove the electrical
components.
1Disconnect the 2
connectors of the four
way valve coil (Y1R).
2Disconnect the 3
connectors of the
compressor motor
capacitor (C1R).
3Remove the 2 screws
of the capacitor band.
Step Procedure Points
(R11443)
Four way
valve coil
X1M X2M
(R11444)
Compressor
motor capacitor
C1R
C2R : red
X1M(X1) : red
Compressor (R):
red
Compressor (S)
:
yellow
Capacitor band (R11445)

Removal of Electrical Components (Pattern 2) Si01-980
18 Removal Procedure
4Lift and remove the
compressor motor
capacitor.
5Disconnect the 3
connectors of the fan
motor capacitor (C2R).
6Remove the screw.
Remove the fan motor
capacitor.
7Open the fuse holder.
Take the fuse out.
Step Procedure Points
(R11446)
(R11447)
Fan motor capacitor
X2M(5) : black
white
red
C1R : red
C2R
(R11492)
(R11448)
Fuse
Fuse
holder
(R11449)