Daikin FAY71FVE Manuale utente

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.

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