Daikin FAQ71BVV1B User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
3/4 HP Class
Si281302

Service Manual
Removal Procedure
Indoor Unit
Applicable Models
zHeat Pump
FAQ71BVV1B
FAQ100BVV1B

Si281302
Removal Procedure 1
Table of Contents
1. Procedure to Remove Air Filter and Front Panel ....................................2
2. Procedure to Remove Front Grille ..........................................................3
3. Procedure to Remove the Horizontal Blade and Vertical Blade..............4
4. Procedure to Remove Electrical Box ......................................................5
5. Procedure to Remove Heat Exchanger ..................................................6
6. Procedure to Remove Fan Motor and Fan Rotor....................................7
7. Procedure to Remove Air Swing Motor...................................................8
8. Procedure to Remove Drain Hose Piping to the Left ..............................9

Procedure to Remove Air Filter and Front Panel Si281302
2Removal Procedure
1. Procedure to Remove Air Filter and Front Panel
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Put your fingers on
protrusions at left and
right side of the unit to
open the front panel.
2To remove the air filter,
press up the tab and
pull down the filter.
The air filter is free from the
side of left or right.
It is easy to install if inserting
along the guide.
3Disengage the holding
section on upper right
of the panel by pushing
toward left, then slide
toward right to remove
the front panel.
Front panel
Air filter
Front panel

Si281302 Procedure to Remove Front Grille
Removal Procedure 3
2. Procedure to Remove 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
Removing the front panel
in accordance with
"Removal of Front Panel".
1Remove 3 pieces of
front grille fixing screws.
2Remove the front grille
by pulling forward while
pushing 3 hooks
located at upper part of
the grille 1 by 1.
If hard to remove, try to
press the hooks by a
screwdriver or the like to
remove.
3The front grille can be
removed by pulling
forward and lift the
bottom part.
Make sure that the 3 hooks
are set on the original
position when reinstalling
the front grille.
Front grille

Procedure to Remove the Horizontal Blade and Vertical Blade Si281302
4Removal Procedure
3. Procedure to Remove the Horizontal Blade and
Vertical Blade
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Removing the horizontal
blade.
1Open the horizontal
blade.
2Bend the horizontal
blade slightly to
disengage the fixing
part at right side.
3Pull the horizontal blade
rightward and take it
out.
1. Removing the vertical
blade.
1Disengage the
protrusion on upper
side of blade from
holder plate. (3
locations)
2Press the vertical blade
backward and pull the
lower side forward to
disengage the blade
from 3 hooks.
Horizontal blade
Holder
Holder plate
Protrusion
Holder plate
Vertical blade
Hook

Si281302 Procedure to Remove Electrical Box
Removal Procedure 5
4. Procedure to Remove Electrical Box
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing the front grille in
accordance with "Removal
of Front Grille".
1Remove the screw on
the service cover.
2Remove the screw on
the drip proof plate.
3Remove the screw for
the grounding wire.
4Remove the following
connectors.
· Fan motor connector
· Air swing motor
connector
5Pull the heat exchanger
thermistor and
dismantle it.
6Remove the fixing
screw for switch box.
7Pull forward the switch
box holding lower part
of the box.
Drip proof plate
screw Service cover
screw
Earth wire screw
Heat exchanger
thermistor
Swing
motor
connector
Fan motor connector
Switch box

Procedure to Remove Heat Exchanger Si281302
6Removal Procedure
5. Procedure to Remove Heat Exchanger
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing the front grille in
accordance with "Removal
of Front Grille".
Removing the switch box
in accordance with
"Removal of Switch Box".
Caution
If gas leaks, repair the leakage
section, collect refrigerant
inside the unit completely, then,
recharge refrigerant after
performing vacuum
dehydration.
Caution
Don't mix air or the like other
than the specified refrigerant
into a refrigeration circle.
(Mixing of air or other gas
causes abnormal high pressure
in the refrigerating cycle and
results in pipe rupture or
personal injuries.)
Pay attention not to soil the
floor with residual drain.
In case that the drain hose is
buried inside wall, remove
the heat exchanger after
pulling out the drain hose.
Caution
When removing or reinstalling
the heat exchanger, be sure to
wear gloves or wrap the heat
exchanger with cloth or the like.
(Otherwise, the fins may injure
your hand.)
1Press strongly the
claws on both left and
right sides of heat
exchanger toward
inside.
2To remove the heat
exchanger, pull it
upward.

Si281302 Procedure to Remove Fan Motor and Fan Rotor
Removal Procedure 7
6. Procedure to Remove Fan Motor and Fan Rotor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing the front grille in
accordance with "Removal
of Front Grille".
Removing the
El. compo. box in
accordance with "Removal
of El. compo. Box".
1. Removing the fan motor
1Insert a Phillips tip
screwdriver into the air
outlet and remove the
screws fixing the fan
motor and fan rotor.
(The screws can be
removed without
removing of horizontal
blade.)
2Remove the 2 screws
on the bearing cover (1)
and (2) and dismantle
the covers.
3Take out the fan motor
sideways.
2. Removing the fan rotor
Removing the heat
exchanger in accordance
with "Removal of Heat
Exchanger".
1Remove the 2 screws
to dismantle the rotor
cover.
2Pull the fan rotor out.
Bearing cover (1)
Bearing cover (2)
Fan motor
Fan rotor
Rotor cover

Procedure to Remove Air Swing Motor Si281302
8Removal Procedure
7. Procedure to Remove Air Swing Motor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing the front grille in
accordance with "Removal
of Front Grille".
1Disconnect the air
swing motor connector
in the el. compo. box.
2Remove the screw
which fixes the air
swing motor.
3Pull the air swing link
assembly to the left
strongly to dismantle.
Swing motor
Swing link