Daikin FAY71FVE User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Non-Inverter
Pair Type
3 HP Class
Si211309E

Service Manual
Removal Procedure
Indoor Unit
Applicable Models
zHeat Pump
FAY71F(A)VE

Si211309E
Removal Procedure 1
Table of Contents
1. Procedure to Remove Air Filter...............................................................2
2. Procedure to Remove Slide Panel, Operation Display Cover,
and Front Grille .......................................................................................3
3. Procedure to Remove Electrical Parts Box .............................................4
4. Procedure to Remove PCB.....................................................................5
5. Procedure to Remove Swing Louvre Unit ...............................................6
6. Procedure to Remove Fan Motor............................................................7
7. Procedure to Remove Drain Pan ............................................................8
8. Procedure to Remove Heat Exchanger ................................................10
9. Procedure to Remove Fan Rotor ..........................................................11

Procedure to Remove Air Filter Si211309E
2Removal Procedure
1. Procedure to Remove Air Filter
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Hold the air filter tabs
with your hands and
pull out.
2Pull the air filter out.

Si211309E Procedure to Remove Slide Panel, Operation Display Cover, and Front Grille
Removal Procedure 3
2. Procedure to Remove Slide Panel, Operation
Display Cover, and Front Grille
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 left and
right side panels.
(1 white screw each on
left and right)
The wiring diagram is applied to
the right side panel, and
troubleshooting list is applied to
the left side panel.
2Remove the operation
display cover
installation screw and
remove the cover by
sliding to the right.
3Remove the front grille
installation screws.
(3 M4×12 screws with
spacers)
4Disconnect the upper
hook of the front grille
and remove.
Hook

Procedure to Remove Electrical Parts Box Si211309E
4Removal Procedure
3. Procedure to Remove Electrical Parts Box
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
∗Remove the left and right
side panels, operation display
cover and front grille
according to the procedures
for their removal.
1Remove the
(1) thermistor,
(2) heater connector
and
(3) rubber clip
connected to the PCB.
2Remove the 2 screws
fastening the electrical
parts box to the units.
3Lift the electrical parts
box and remove by
moving toward the right.
Heater connector
Thermistor
Rubber clip
The left and right side panels
have to be taken off in order to
remove the front grille.
Thermistor installation spring
Hook hole Hooks

Si211309E Procedure to Remove PCB
Removal Procedure 5
4. Procedure to Remove PCB
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
∗Remove the outer panels
according to the procedure
for removing the electrical
parts box.
1Disconnect the front
side wiring connector
connected to the PCB.
2Disconnect the PCB
from the tabs by
pushing it inward. Draw
the PCB out partly and
disconnect the
remaining connectors.
The tape holding the electrical
parts box and PCB is for
transport, and is unnecessary
when reinstalling.
3Completely remove the
PCB.
Red
Fan motor connector
yellow
Tabs
LED lamps (green)

Procedure to Remove Swing Louvre Unit Si211309E
6Removal Procedure
5. Procedure to Remove Swing Louvre Unit
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
∗Remove the electrical parts
box according to its removal
procedure.
1Remove the horizontal
blade.
2Remove the swing
louvre unit. (3 screws)
3Remove the swing
motor from the swing
louvre unit.
You can replace the swing
motor without removing the
swing louvre unit.

Si211309E Procedure to Remove Fan Motor
Removal Procedure 7
6. Procedure to Remove 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
∗Remove side panels and
other external casing, and
electrical parts box according
to their removal procedures.
Use 2.5 mm hexagon nut driver.
1Loosen the hexagon set
screw fastening the fan
rotor and fan motor.
2Remove the fan motor
fastener. (3 screws)
3Remove the fan motor.
Hexagon nut driver
Fan motor fastener
Fan motor cover
Fan motor retainer
Fan motor
To front

Procedure to Remove Drain Pan Si211309E
8Removal Procedure
7. Procedure to Remove Drain Pan
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
∗If removing the drain pan:
Carry out pump down,
disconnect the transmission
piping and wiring, and
remove the main unit.
∗Remove side panels,
operation display cover and
front cover according to their
removal procedures.
1Remove the bottom
panel.
2Remove the air
discharge section.
Installation plate
Air discharge
section
Bottom panel
Installation
plate
The bottom panel is fastened to
the unit installation plate by 3
screws.
(2) Bottom panel (3) Air discharge
section
Comes off if squeezed hard.