Daikin FT50GAVEA8 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Non-Inverter
Wall Mounted Type
5.0/6.0 kW Class
Si04-857

Service Manual
Removal Procedure
Indoor Unit
zCooling Only
FT50GAVEA8
FT60GAVEA8

Si04-857
Removal Procedure 1
Table of Contents
1. Removal of Air Filter................................................................................2
2. Removal of Front Grille ...........................................................................3
3. Opening and Closing of Service Cover /
Changing Settings at Installation Site .....................................................4
4. Removal of Front Panel ..........................................................................5
5. Removal of Horizontal and Vertical Blades.............................................7
6. Removal of Drain Pan.............................................................................8
7. Removal of PCB....................................................................................10
8. Removal of Electrical Box .....................................................................13
9. Removal of Swing Motor Assembly ......................................................15
10.Piping of Drain Hose at Left Side ..........................................................16
11.Removal of Heat Exchanger .................................................................17
12.Removal of Fan Rotor and Motor..........................................................22
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filter Si04-857
2Removal Procedure
1. Removal of Air Filter
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. External features
2. Removal of air filters ON/OFF switch on main unit
also functions as remote
controller signal receiving
section.
1Pull protrusions on left
and right sides of grille
with fingers and open
front grille all the way.
2Lift center section of air
filter and disengage
hooks at two locations.
3Remove air filter by
pulling forward.
Left and right filters are
interchangeable.
To re-install, insert air filter
along the guide.
Display section on main unit
(R2280)
(R2282)
(R2283)
(R2284)

Si04-857 Removal of Front Grille
Removal Procedure 3
2. Removal of Front Grille
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Pull protrusions on left and
right sides of front panel
and open grille until it
locks in position.
1Slide down locking
switch at the center of
front grille and disjoin
hinge.
2Remove front grille from
the unit.
Lift front panel until a
clicking sound is produced.

(R2286)
(R2287)
Lock
Unlock
(R2289)
(R2288)

Opening and Closing of Service Cover / Changing Settings at Installation Site Si04-857
4Removal Procedure
3. Opening and Closing of Service Cover /
Changing Settings at Installation Site
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. External features
1Remove service cover
mounting screw.
(M4 × 12 black)
2Take off cover by
pulling down.
2. Changing settings at
installation site
1Filter sign can be reset.
(R2293)
(R2294)

Si04-857 Removal of Front Panel
Removal Procedure 5
4. Removal of Front Panel
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Lift horizontal blade to
open position.
2Remove screw covers
at three locations, then
remove screws.
(M4 × 16 × 3 pcs.)
Front cover can be now
dismounted from the
unit.
(R2296)
Remove screw covers.
(R2297)
(R2300)
(R2298)
Screw
length:
16 mm
(R2299)

Removal of Front Panel Si04-857
6Removal Procedure
3To remove front panel,
disengage two hooks
on upper side and three
hooks on lower side of
flap.
4Top side is provided
with four hooks. To
disengage, move front
panel forward while
twisting it.
Four hooks are provided on
top side of front panel.
Step Procedure Points
(R2301)
(R2302)

Si04-857 Removal of Horizontal and Vertical Blades
Removal Procedure 7
5. Removal of Horizontal and Vertical Blades
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Lift horizontal blade to
open position.
2Disengage horizontal
blade from three blade
retaining sections.
Re-installation
1. Set blade onto the alignment
key on right side first.
2. Engage blade retaining
sections at 3 locations.
3Bend blade slightly and
remove it from the unit.
4Disengage vertical
blades from bottom
catch by bending them
slightly.
5Pull the vertical blades
forward to remove.
Retaining sections
(R2303)
(R2304)
Blade alignment key
(R2306)
(R2305)
(R2306)

Removal of Drain Pan Si04-857
8Removal Procedure
6. Removal of Drain Pan
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove front grille.
Remove electrical box.
Wrap a thin cloth around the
tip of screwdriver, and pry
open the cover.
This step is not necessary
for backside piping.
1Remove bottom cover
to access drain hose
(for left-handed piping).
2Remove two screws
that secure bottom
frame to mounting
plate.
3Push two positions at
lower part of the unit to
disengage bottom
frame hooks from
mounting plate.
Lift the unit slightly and
pull out drain hose.
Listen to clicking sound to
ensure secure mounting of
parts.
Be careful not to soil the
floor with drain water.
4Lift the unit slightly and
pull out drain hose.
Thin cloth
(R2308)
(R2309)
(R2310)
Section
(R2311)
Rubber band
Plastic bag
(R2312)

Si04-857 Removal of Drain Pan
Removal Procedure 9
5Disengage hook on left
side.
6Dismount left side of
drain pan from the unit.
7Dismount right side of
drain pan from the unit.
8Disconnect drain hose.
Warning!
Hold the bottom of drain hose
and disconnect drain hose.
Step Procedure Points
(R2313)
(R2314)
(R2315)
(R2316)

Removal of PCB Si04-857
10 Removal Procedure
7. Removal of PCB
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove front panel.
1Remove water-proofing
plate. Cover can be
removed by moving
hook outward.
2Electrical box cover is
secured in position by
two hook.
(R2317)
(R2318)
Press this section to
disengage hook.
Held in place by
this hook.
(R2319)
(R2320)

Si04-857 Removal of PCB
Removal Procedure 11
3Disconnect earth wire.
4Disconnect heat
exchanger thermistor.
5Disconnect swing motor
wire harness.
When disconnecting wire
harness, pull out the connector
holding terminal section of
connector.
Do not hold lead wire.
6Pull out printed circuit
board, and unplug wire
harness connector.
7Remove PCB.
Step Procedure Points
(R2321)
(R2322)
(R2323)
(R2324)

Removal of PCB Si04-857
12 Removal Procedure
8Pull out power supply
PCB slightly.
9After disconnecting
power supply terminal
and motor wire
harness, remove power
supply PCB.
Fan motor : S201
Step Procedure Points
(R2325)
(R2326)
(R2327)

Si04-857 Removal of Electrical Box
Removal Procedure 13
8. Removal of Electrical Box
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove thermistors, earth
wire and connectors (S1, S6)
1Remove screw located
at right lower side of
electrical box.
(M4 × 16)
2Disconnect swing motor
wire harness.
3Lift up electrical box
slightly and disengage
hook located at bottom
side.
4Disengage hook
located at top side.
(R2328)
(R2329)
(R2330)
(R2331)

Removal of Electrical Box Si04-857
14 Removal Procedure
5Unplug connector of fan
motor wire harness.
(S201)
6Move electrical box
slightly to right, then
pull out box forward.
Caution!
Do not catch the putty on
protrusion of drain guide in
the flame protection panel.
Step Procedure Points
(R2332)
(R2334)
Drain guide
(R2333)

Si04-857 Removal of Swing Motor Assembly
Removal Procedure 15
9. Removal of Swing Motor Assembly
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove front panel.
Remove the electric parts
box.
The number of motors varies
depending on the model.
1Remove two screws
holding swing motor in
place.
(M4 × 8)
2Remove two screws
holding swing motor
mechanism in place.
(M4 × 8)
(R2335)
(R2336)
(R2337)

Piping of Drain Hose at Left Side Si04-857
16 Removal Procedure
10.Piping of Drain Hose at Left Side
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove drain pan.
1Pull out drain plug
located on left side of
drain pan with fingers.
Warning!
Hold the bottom of drain hose
and insert drain hose
properly.
2Insert drain hose.
3Insert drain plug into
the opening on right
side, and press it in
using hexagonal
wrench (4 mm).
4Place drain hose into
left side of the unit, and
mount drain pan.
Make sure to check
draining the water
properly.
(R2338)
(R2339)
(R2340)
(R2342)

Si04-857 Removal of Heat Exchanger
Removal Procedure 17
11.Removal of Heat Exchanger
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Conduct pump-down
operation. Warning!
If gas leaks, repair the leak
location, then collect all
refrigerant from the unit.
Conduct vacuum drying, and
charge proper amount of
refrigerant.
Warning!
Do not mix any gas (including
air) other than the specified
refrigerant (R-22) into
refrigerating cycle.
(Mixing of air or other gas
causes abnormal
temperature rise in
refrigerating cycle, and this
results in pipe rupture or
personal injuries.)
1Remove bottom cover
located at lower part of
the unit and disconnect
two screws.
2Push two positions at
lower part of the unit to
disengage bottom
frame hooks from
mounting plate. Lift the
unit slightly.
3Remove insulation
tube, and disconnect
liquid pipe at the flare.
Use two wrenches to
disconnect pipe.
Be careful not to scratch the
wall.
4Disconnect gas pipe at
the flare.
After pipes are
disconnected, close all pipe
openings with caps to
prevent dust and moisture
from entering pipes.
(R2343)
(R2344)
(R2345)

Removal of Heat Exchanger Si04-857
18 Removal Procedure
Step Procedure Points
For removal of front grille,
drain pan, electrical box
and other parts, see
reference pages.
1. Lifting heat exchanger
1Remove screw holding
heat exchanger
mounting plate in place.
2While raising heat
exchanger, pull it
forward and disengage
hooks.
Caution!
When removing or re-
installing heat exchanger, be
sure to wear protective
gloves or wrap heat
exchanger with cloths. (Fins
can cut fingers.)
3Lift heat exchanger.
(R2346)
(R2347)