Haier HSU24VHJ User manual

84
Domestic air conditioner
4 Pull the front grille out
horizontally and remove
it.
When assembling, install the
front grille horizontally so as
not to stuff the flap inside.
When assembling, make
sure the three hooks are
caught properly.
Step Procedure Points
HSU24VHJ(DB) RemovalProcedure

85
Domestic air conditioner
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove the front grille.
Remove the assembly of
thereductionmotor.
1. Remove the Drain pan.
1
Loosen the marked
screws under the
screw covers
Loosen the marked
3 Lift up and remove
2
hooks
the drain pan.
HSU24VHJ(DB) RemovalProcedure

86
Domestic air conditioner
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
2Push the hooks on the
back of the vertical blades
and remove.
Loosen the marked
1
screws
9.25 Removal of Vertical Blade and Swing Motor
HSU24VHJ(DB) RemovalProcedure

Domestic air conditioner
87
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Remove the front grille. Discharge the static
electricity from your body
before touching the electric
parts like signal receiver
PCB.
It may cause malfunction o
PCB.
1. Remove the electrical
box.
1Loosen the screw of the
drip proof plate.
2Lift and remove the drip
proof plate.
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
Procedure Points
Remove the front grille. Discharge the static
electricity from your body
before touching the electrical
parts like signal receiver
PCB.
It may cause malfunction of
PCB.
1. Remove the electrical
box.
1
Loosen the screw of the
drip proof plate.
2
Lift and remove the drip
proof plate.
9.26 Removal of Electrical Box
HSU24VHJ(DB) RemovalProcedure

88
Domestic air conditioner
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
You can detach the indoor
unit without removing the
assembly of the outlet grille.
Caution
If gas leaks, repair the spot of
leaking, then collect all
refrigerant from the unit. After
conducting vacuum drying,
recharge proper amount of
refrigerant.
Caution
Do not contaminate any gas
(including air) other than the
specified refrigerant (R410A),
into refrigerant cycle.
(Contaminating of air or other
gas causes abnormal high
pressure in refrigerating
cycle, and this results in pipe
breakage or personal
injuries.)
Pay attention so that the
residual water in the drain
will not make the floor wet.
In case that a drain hose is
buried inside a wall, remove
it after the drain hose in the
wall is pulled out.
Use two wrenches to
disconnect pipes.
When disconnecting pipes,
cover every nozzle with caps
so as not to let dust and
moisture in.
1Loosen the screws
fixed to the installation
plate.
2Loosen the marked
hooks
3Loosen the marked
screws and remove
mounting plate
9.27 Removal of Heat Exchanger
HSU24VHJ(DB) RemovalProcedure

89
Domestic air conditioner
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Loosen the 6 screws.
2Remove the right side
plate.
9.28 Removal of Fan and Fan Motor
HSU24VHJ(DB) RemovalProcedure

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Domestic air conditioner
Removal of procedure
HSU24VHJ(DB)
9.2The removal procedure of outdoor
9.2.1 Removal of Outdoor panel
Step Procedure Points
1. Features
1 Loosen the service
cover screw and
remove the service
cover.
Be careful not to
FXW\RXU¿QJHUE\
WKH¿QVRIWKHKHDW
H[FKDQJHU

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Domestic air conditioner
Removal of procedure
Step Procedure Points
2. Remove the panels.
1Loosen the 4 screws
and lift the top panel
2Loosen the screws
of the panel.
3Pull and remove
the front panel.
HSU24VHJ(DB)

92
Domestic air conditioner
Removal of procedure
9.2.2 Romoval of Electrcal Box
Step Procedure Points
5HPRYHWKH¿[LQJ
screws, then lift
the electrical box
*
*
*
*
*
*
*
Removal of procedure

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Domestic air conditioner
Removal of procedure
9.2.3 Romoval of the Side panel
Step Procedure Points
1
/RRVHQWKH¿[LQJ
screws and remove
the side panel.
Removal of procedure

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Domestic air conditioner
Removal of procedure
Step Procedure Points
2Remove the
EDFNSDQHO
3
/RRVHQWKH¿[LQJ
screws and remove
the side panel.
Removal of procedure

95
Domestic air conditioner
Removal of procedure
Step Procedure Points
1
Loosen the
¿[LQJVFUHZDQG
remove the fan
Put the lead wire
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of motor when
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QRWWRHQWDQJOHGZLWK
the propeller fan)
9.2.4 Removal of fan and fan motor
Removal of procedure

96
Domestic air conditioner
Removal of procedure
Step Procedure Points
2
/RRVHQWKH¿[LQJ
screws and lift
the fan motor.
Removal of procedure

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Domestic air conditioner
Removal of procedure
Step Procedure Points
3
5HPRYHWKH¿[LQJ
screws, then lift the
IDQPRWRUEUDFNHW
Removal of procedure

98
Domestic air conditioner
Removal of procedure
Step Procedure Points
4
5HPRYHWKH¿[LQJ
screws, then lift
the proof plate.
Removal of procedure

99
Domestic air conditioner
Removal of procedure
25RPRYDORIFRPSUHVVRUDQGKHDWH[FKDQJHU
Step Procedure Points
1
Cut down the
FRQHFWLQJSLSH
and pull out the
compressor
and remove the
YDOXHEUDFNHW
Removal of procedure

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Domestic air conditioner
Removal of procedure
Step Procedure Points
2/RRVHQWKHPDUNHG
¿[LQJVFUHZV
Removal of procedure

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Domestic air conditioner
Removal of procedure
Step Procedure Points
3
/RRVHQWKH¿[LQJ
KRRNDQGUHPRYH
WKHKHDWH[FKDQJHU
Removal of procedure

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Domestic air conditioner
Removal of procedure
Step Procedure Points
4Remove the
YDOYHEUDFNHW
Removal of procedure

HSU24VHJ(DB) WiringDiagrams
Domestic Air Conditioner
103
10.Wiring Diagrams
10.1. INDOORUNIT
,1'22581,7:,5,1*',$*5$0
EMERGENCY SWITCH
0010528005
CN48
CN32
CN11
CN1
PIPING TEMP.SENSOR
AMBIENT TEMP.SENSOR
RECEIVER
DISPLAY
CN32-
RECEIVER
DISPLAY
::+,7(
<*<(//2:*5((1
55('
%%/$&.
%/%/8(
LOUVER MOTOR
72287'22581,7
Y/G
CON2
CON1
CON7
T3.15A/250V AC
FUSE
WR
B
CON8
CON6
RW
Y/G
ION GENERATOR