SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type (60Hz)
Models
Indoor unit
Outdoor unit
MS24Y3F MR24UY3F
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUTLINE AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . .
REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . .
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCB CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . .
1
2
4
5
7
ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DISASSEMBLY ILLUSTRATION (Indoor Unit) . . . . . 13
DISASSEMBLY ILLUSTRATION (Outdoor Unit) . . . . 20
PARTS LIST (Indoor Unit) . . . . . . . . . . . . . . . . . . . . . . . 24
PARTS LIST (Outdoor Unit) . . . . . . . . . . . . . . . . . . . . . . 25
STANDARD ACCESSORIES . . . . . . . . . . . . . . . . . . . . . 26
SPECIFICATIONS
TYPE
Cool and Heat
MS24Y3F
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
MR24UY3F
22,200 / 22,200 BTU/h
24,200 / 24,200 BTU/h
ELECTRICAL DATA
POWER SOURCE
230 V / 208 V
1
60 Hz
FREQUENCY
9.8 A / 10.9 A
10.2 A / 11.3 A
2.25 kW / 2.25 kW
2.33 kW / 2.33 kW
2.89 / 2.89 kW/kW
3.05 / 3.05 kW/kW
3.5 l/hr
RUNNING CURRENT (Cool)
RUNNING CURRENT (Heat)
INPUT WATTS (Cool)
INPUT WATTS (Heat)
E.E.R. (Cool)
E.E.R. (Heat)
MOISTURE REMOVAL
AIR CIRCULATION-High
880 m3/hr
COMPRESSOR
TYPE
Hermetic type, 4 poles, Inverter, Twin Rotary
TNB220FPBM9
DISCRIMINATION
4 lb 3 oz (1,900 g)
REFRIGERANT
R410A
FAN MOTOR
POWER SOURCE
230 V
DISCRIMINATION
HIGH-SPEED
MED-SPEED
MFA-24PPT
1,180 / 1,100 r.p.m.
1,000 / 1,000 r.p.m.
900 / 900 r.p.m.
MFE-45ROM
INDOOR UNIT
( Cool / Heat )
LOW-SPEED
DISCRIMINATION
HIGH- SPEED
OUTDOOR UNIT
( Cool / Heat )
850 / 900 r.p.m.
DIMENSIONS
7-7/8" x 39-1/8" x 25-7/8" inch
(199 x 990 x 655 mm)
INDOOR UNIT
H x W x D
H x W x D
32-3/4" x 35-1/2" x 13" inch
(830 x 900 x 330 mm)
OUTDOOR UNIT
WEIGHT
Gross / Net
Gross / Net
37 kg / 28 kg
70 kg / 64 kg
INDOOR UNIT
OUTDOOR UNIT
REFRIGERANT CHARGE (R410A)
Pipe Length
49 ft. (15 m)
66 ft. (20 m)
98 ft. (30 m)
131 ft. (40 m)
164 ft. (50 m)
4 lb 3 oz (1,900 g)
4 lb 10 oz (2,100 g)
5 lb 8 oz (2,500 g)
6 lb 6 oz (2,900 g)
7 lb 5 oz (3,300 g)
0.424 oz / ft. (40 g / m)
FULL CHARGE AMOUNT
ADDITIONAL REFRIGERANT
2006.05.29
1
OUTDOOR UNIT
Unit : inch (mm)
1-1/4"
(31)
1/2"
(12)
3"(77)
13" (330)
35-1/2" (900)
15-3/4" (400)
Air Flow
25-5/8" (650)
5-3/4" (147)
6-3/4" (170)
2006.05.25
3
REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT
INDOOR UNIT
Pressure
Check Valve
Refrigerant Pipe
15.88mm (5/8")
High Pressure
Switch
Charging
Valve
4-way
Valve
Evaporator
Condenser
Accumulator
Compressor
Expansion
Valve
Refrigerant Pipe
9.52mm (3/8")
Strainer
Strainer
Charging Valve
: COOL
: HEAT
2006.05.25
4
CIRCUIT DIAGRAM
INDOOR UNIT
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
1
2
2
1
2
1
WHITE
WHITE
FAN MOTOR
CAPACITOR
BROWN
RED
ORANGE
YELLOW
WHITE
BLUE
1
2
CN7 CN8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
BROWN
RED
ORANGE
YELLOW
WHITE
1
2
3
4
5
1
2
3
4
5
STEP MOTOR
PURPLE
GRAY
M
M
( UP / DOWN )
BLACK
WHITE
RED
PINK
PURPLE
BLUE
4
6
3
5
2
1
1
2
3
4
5
6
BROWN
RED
ORANGE
YELLOW
WHITE
1
2
3
4
5
1
2
3
4
5
STEP MOTOR
FAN MOTOR
F M
( LEFT / RIGHT )
CN1
CN17
1
2
3
1
2
3
GREEN
POWER SUPPLY PCB
G
TERMINAL
3
3
1
2
1
2
2005.05.25
5
OUTDOOR UNIT
OUTDOOR TEMPERATURE
THERMISTOR
BLACK
BLUE
BROWN
PIPE TEMPERATURE
THERMISTOR
COMPRESSOR TEMPERATURE
THERMISTOR
BROWN
DISCHARG TEMPERATURE
THERMISTOR
BLACK
2
HEAT SINK TEMPERATURE
THERMISTOR
1
2
1
2
1
2
1
2
1
EMI FILTER
CONNECTOR
CN21
CN25
CN22 CN23 CN26
1T
RED
RED
RED
RED
U
W305
1
2
HIGH PRESSURE SWITCH
CN37
U
WHITE
WHITE
BLACK
V
COMPRESSOR
W304
V
FUSE
F4 T 5A-250V
BLACK
BLACK
1
2
3
BLACK
W
W303
W
CN30
4WV
SOLENOID COIL
ACTIVE
FILTER
MODULE
BROWN
RED
ORANGE
1
2
3
4
5
6
1
2
3
4
5
CONTROLLER PCB ASSY
CN407
RED
1
2
3
4
5
6
TERMINAL
BLACK
WHITE
YELLOW
BLUE
YELLOW
F M FAN MOTOR
CN802
BLACK
WHITE
L1
YELLOW
W12
W13
P
N
BLUE
BLACK
BROWN
L2
+
EMI FILTER
2T
-
CHOKE COIL
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
1
2
3
4
5
6
FUSE
F2 T 3.15A-250V
CN27
EXPANSION VALVE COIL
E V
RED
W16
W17
BLACK
W10
W11
CN1
CN34
W200
1
2
3
4
3
1
2
3
WHITE
BLACK
1
2
TM102
TM101
W9 W8
CN1
POWER SUPPLY PCB ASSY
W6 W7
W5
W3
W4
RED
2 (N)
1
3
N
G
G
L
EARTH
EARTH
2005.05.25
6
CONTROLLER PCB ASSY
K01AL-050SHSE-C1
INDOOR PCB CIRCUIT DIAGRAM
2006.05.25
7
OUTDOOR PCB CIRCUIT DIAGRAM
INVERTER ASSEMBLY
EZ-005FHUE
POWER SUPPLY PCB ASSY
K04BA-0500HUE-P0
CONTROLLER PCB ASSY
K04AW-0502HUE-C1
2006.05.25
8
OUTDOOR UNIT
CONTROLLER PCB ASSEMBLY
K04AW-0502HUE-C1
600/450V x 4
2006.05.25
9
POWER SUPPLY PCB ASSEMBLY
K04BA-0500HUE-P0
OUTDOOR UNIT
TM100
L2
N200500K1D7C
L1
RCH4730-021PF07
L4
RCH4730-021PF07
BLACK
W4
W5
TM101
TM102
B
VA101
470V
<TNR>
VA102
470V
C104
C112
0.015
<YE>
C113
0.015
<YE>
0.033
<YE>
C105
0.033
<YE>
C107
3.3
<LE>
C111
3.3
<LE>
C101
3.3
<LE>
POWER SOURCE
230V
60Hz
<TNR>
WHITE
B
C106
3.3
<LE>
SA100
RA-302M
W6
BLACK
B
TO INDOOR UNIT
CT1
CT-1B
B
W7
WHITE
5V
CN1
B3B-XASK-1-A
WHITE
D60
DAN217U
W3
GREEN
5V
B
C65
0.1
EARTH
R68 22K
<1/10W>
<F>
1
2
3
C60
220/16V
<PJ>
VR1
B2K
+
CT OUT
B
B
W8
BLACK
C64
0.1
<F>
AC VOLT OUT
R60 1.0K
<1/10W>
(1%)
R61 3.74K
<1/10W>
(1%)
W9
WHITE
2006.05.29
10
ERROR CONTENTS
(Indoor unit)
OERATION
TIMER
OPERATION lamp (Red)
TIMER lamp (Green)
SWING lamp (Orange)
SWING lamp (Orange)
SWING
SWING
MANUALAUTO
Operation can be checked by lighting and flashing of the display section OPERATION, , and
TIMER lamps.
Perform judgment in accordance with the following.
TEST RUNNING
When the air conditioner is run by pressing the remote control unit test run button, the OPERATION and
TIMER lamps flash slowly at the same time.
ERROR
The OPERATION, TIMER, and SWING lamps operate as follows (Table) according to the error contents.
Error display
Error contents
OPERATION
(RED)
TIMER
(GREEN)
SWING
(ORANGE)
Indoor unit circuit board error
Indoor unit room temperature sensor wire opened
Indoor unit room temperature sensor wire short circuited
Indoor unit piping sensor wire opened
Indoor unit piping sensor short circuited
Indoor unit fan error
2 times
2 times
3 times
3 times
6 times
5 times
5 times
Outdoor unit circuit board error
Miswiring between outdoor unit and indoor unit
Outdoor unit discharge temperature sensor error
Outdoor unit piping sensor error
5 times
3 times
4 times
Outdoor unit outdoor temperature sensor error
Fast flashing
Slow flashing
Off
:
:
:
2006.05.24
11
ERROR CONTENTS
(outdoor unit)
1. Make a TEST RUN in accordance with the in-
stallation instruction sheet for the indoor unit.
2. When the product is operating:
1
Press the PUMP DOWN switch on the outdoor unit.
The LED on the outdoor unit circuit board lights, and
operation stops. At this point, recovery has not been
completed, so do not close the two- and three-way
valves.
2. OUTDOOR UNIT LEDS
When a malfunction occurs in the outdoor unit, the LED on
the circuit board lights to indicate the error. Refer to the fol-
lowing table for the description of each error according to the
LED.
2
3
4
The pump down operation (cooling operation) be-
gins after three minutes. Close the three-way valve
(liquid) after operation starts.
LED
Error contents
Communication error
After 2 - 3 minutes, operation stops. Close the three-
way valve (gas) within one minute after operations
stops.
1 flash
(Indoor unit - Outdoor unit)
2 flash Discharg pipe temperature sensor
3 flash Outdoor heat exchanger temperature sensor
4 flash Outdoor temperature sensor
7 flash Compressor temperature sensor
8 flash Heat sink temperature sensor
9 flash Pressure switch abnormal
The LED will go out three minutes after it stops. Dis-
connect the power supply after confirming that the
LED has gone out.
*When the pump down operation is repeated, temporarily disconnect
the power supply after opening the closed valves (both liquid and gas).
Reconnect the power supply after 2 - 3 minutes and perform the pump
down operation.
12 flash IPM error
*When the start of the operation after pump down operation has been
completed, temporarily disconnect the power supply after opening the
closed valves (both liquid and gas).
Reconnect the power supply after 2-3 minutes and be sure to perform
a test operation for cooling.
13 flash Compressor rotor position cannot detect
14 flash Compressor cannot operate
15 flash Outdoor fan abnormal (upper fan)
16 flash Outdoor fan abnormal (lower fan)
3-way valve
(Liquid)
lighting
No error
SPECIAL INSTALLATION
SETTING
PUMP DOWN (Refrigerant collecting operation)
3-way valve
(Gas)
Perform the following procedures to collect the refrigerant
when moving the indoor unit or the outdoor unit.
1. When the product is stopped:
PUMP DOWN SW (SW2)
1
Press the PUMP DOWN switch on the outdoor unit.
(The LED on the outdoor unit circuit board lights.)
2
The pump down operation (cooling operation) be-
gins right away. After oparation starts, close the
three-way valve (liquid).
3
4
After 2 - 3 minutes, operation stops. Close the three-
way valve (gas) within one minute after operations
stops.
The LED will go out three minutes after it stops.Dis-
connect the power supply after confirming that the
LED has gone out.
DANGER
This part (Choke coil) generates high voltages.
Never touch this part.
2006.02.14
12
DISASSEMBLY ASSEMBLY
INDOOR UNIT
509
173
365-1
870-1
653-2
365-2
580
365-2
870-1
653-2
174
365-1
508
743
240
2006.05.25
13
INDOOR UNIT
439
470
160
764
577
418
127
196-1
124
235
184-1
138
124
187
68
108
578
68
2006.05.25
14
INDOOR UNIT
983
983
2006.05.25
15
INDOOR UNIT
416
385
417
771
488
472
443
473
8-1
2006.05.25
16
INDOOR UNIT
146
735
652-1
800
OPTIONAL PARTS
2006.05.29
17
INDOOR UNIT
982
2006.06.13
18
INDOOR UNIT
2006.05.29
19
OUTDOOR UNIT
1
6
4
3
2
5
2006.05.29
20
OUTDOOR UNIT
10
13
11
9
17
18
15
14
8
2006.06.13
21
OUTDOOR UNIT
26
24
25
31
27
22
23
19
29
28
12
12
30
20
2006.05.29
22
OUTDOOR UNIT
38
37
36
35
33 34
2006.05.29
23
PARTS LIST
INDOOR UNIT
Ref.
Part No.
MS24Y3F
67220192
67220218
67220193
67220219
67220220
67220008
67220013
67220002
67220221
67220222
67220015
67220215
67220216
67220217
67220224
67220228
67220225
67206400
67220226
67220227
67207409
67220229
67203510
67203511
67203712
(K01AL-050SHSE-C1)
Ord.
Q'ty
Ref.
No
Part No.
MS24Y3F
67220242
67220243
67220244
67220004
67220007
67220245
67220246
67220247
67230058
67220006
67220248
67220249
67220250
67220014
67220251
67220001
67220252
67230030
67207461
67206704
67220253
67220254
67200566
67220255
67203202
67220003
67220256
67220257
67220258
Ord.
Q'ty
Description
Description
No
8-1 Air Filter
500 Protect Cover
502 SupportStay
503 LouverShaft
505 LouverStopper
34 Capacitor (Fan Motor)
56 Sirocco Fan Assy
67 Rubber (Vibration-proof)
68 Cap, Plastic
69 Louver
108 Base Assy
506 Louver Rod
508 Cosmetic Panel-R
509 Cosmetic Panel-L
514 Control Box Cover
520 Flap Base
521 LouverLink Cover
554 Flap Link-Upper (Step Motor-V)
555 Flap Link-Lower (Step Motor-V)
558 Motor Rod-A (Step Motor-V)
577 Catch TL-119
109 Casing, Plastic
124 Kit (Dew Proof Plate)
126 Motor Fixing Table Assy
127 Drain Hose Assy
138 Kit (Separate Wall-A)
146 EvaporatorAssy KB07
160 Drain Pan Assy (Kit)
164 Fan Motor Assy-IN
173 HangerBracket-L
174 HangerBracket-R
184-1 Thermistor Spring-A
187 Clamp No. 1219
195 Clamp SKB-100
196-1 Clamp SKB-3M
223 Control Box
234 Thermistor Assy-Room
235 Thermistor Assy-Pipe
236 Controller PCB Assy
(K01AL-050SHSE-C1)
240 Remote Control Unit
320 Flap (Upper)-G
321 Flap (Lower)
578 Base Bracket (Reinforcement Meta
580 Top Cover
581 Protector, Metal (Fan Motor)
625 Cord Bushing KR-51
628 Locking Spacer-B
652-1 Thermistor Holder Pipe
653-2 Bolt
684 Motor Base
731 Holder (Guide Rail)
735 Distributor Assy
743 Remote Control Unit Holder
755 Casing Cover
764 Drain Cap
771 Panel
37220230
67230061
67230062
67200588
67210058
67230060
67230059
67220231
67220232
67207460
67230056
67220233
67220005
67220234
67220235
67220236
67220237
67220238
67220239
67220240
67220241
67220000
800 Bypass Pipe Assy
338 Motor Fixture
361 Bushing
361-2 Bushing-B, Plastic
361-3 Bushing-C, Plastic
365-1 Special Screw
365-2 Special Screw
381 Locking Spacer, KGLS-4S
385 Indicator PCB Assy
407 Motor Rod
408 LouverLink
416 Insulation (Panel)-A
417 Insulation (Panel)-B
418 Insulation (Flap Base)
439 Drain Pan Wire
443 Arm Bracket
470 Separate Wall-B (Kit)
472 Grille Support
473 Filter Bracket
488 Grill-G
2006.06.13
24
OUTDOOR UNIT
Ref.
Part No.
MR24UY3F
67201640
67201601
67201602
67201603
67201688
67201605
67201607
67201608
Ord.
Q'ty
Description
No
1
2
Top Panel Sub Assy
Front Panel
3
Fan Guard
4
Grip Side
5
6
Service Panel Sub Assy
Right Panel
8
9
Propeller Fan Assy
Motor, Induction
10 Condenser-A Assy
11 CoilChoke
12 Strainer Assy
13 Separate Wall Assy
14 Cap Foot
67201609
67201633
67201611
67201647
67201650
67201648
67201614
15 Base Assy
17 3-Way Valve Assy (3/8)
18 3-Way Valve Assy (5/8)
19 Check Joint Assy
20 CompressorAssy
22 4-Way Valve
23 Solenoid
24 Pressure Switch
25 Inlet Pipe Cond A Assy
26 Inlet Pipe Cond B Assy
27 Outlet Pipe Cond A Assy
67201615
67201616
67201689
67201619
67201681
67201621
67201622
67201690
67201691
28 Expansion Valve Assy
29 Coil (Expansion Valve)
30 Distributor
31 Discharge Pipe A Assy
33 Terminal2P
34 Terminal5P
35 ACTPM
36 Holder Thermo
67201692
67201422
67201693
67201694
67220181
67201632
67201627
67201628
37 Inverter PCB Assy
38 Power PCB Assy
---- Fuse 3.15A-250V
---- Thermistor (Outdoor Temp.)
---- Heat Exchanger Thermistor
---- Thermistor (Discharge)
---- Compressor Thermistor
---- Thermistor
67201695
67201696
67201697
67201686
67201698
67201635
67201637
67201430
---- Heatsink Thermistor
---- Transformer
---- Varistor
---- Arrester
---- Relay
---- Relay
---- Switch Push
---- Switch Slide
67201685
67201699
67201700
67201701
67201702
67201703
67201704
67201705
---- Drain Pipe Assy
---- Drain Cap
67201706
67201707
2006.05.25
25
STANDARD ACCESSORIES
The following installation parts are furnished. Use them as required.
INDOOR UNIT ACCESSORIES
Name and Shape
Application
Part No.
Q'ty
Cosmetic Panel-L
1
9358536018
Cosmetic Panel-R
1
2
9358535011
0700009037
Tapping screw ( 4 x 10)
Installation template
For positioning the indoor unit.
For under ceiling type.
1
9359107002
Hanger bracket (left)
For suspending the indoor unit from
ceiling.
1
1
4
4
9358596005
9358595008
Hanger bracket- (right)
Anchor bolt (M12)
Special nut
313806339400
Spring washer
4
2
6
0700007125
9358597002
0700076107
Wall bracket
For suspending the indoor unit on
the wall.
For fixing the wall bracket.
Tapping screw ( 4 x 20)
Coupler heat insulator (large)
For indoor side pipe joint.
(Large pipe)
1
1
9350716012
Coupler heat insulator (small)
For indoor side pipe joint.
(Small pipe)
313209328104
Nylon fastener
Drain hose
For fixing the drain hose.
1
1
312300787605
9359242000
Insulation (drain hose)
Adhesive type 70 x 230
1
1
9359225003
For fixing the drain hose
L 280 mm
VT wire
313806350303
2006.05.29
26
REMOTE CONTROL UNIT
Q'ty
Name and Shape
Application
Part No.
Remote control unit
Use for air conditioner operation
(AR-JW5)
1
9371190051
Battery (penlight)
2
For remote control unit
0600185534
9305642014
0700019098
Remote control unit holder
Use are remote control unit holder
1
Tapping screw ( 3 x 12)
For remote control unit holder
installation
2
Wired remote controller unit is also available
: UTB-UUB (Parts No. 9075887004)
OUTDOOR UNIT ACCESSORIES
Name and Shape
Application
Q'ty
Part No.
Drain pipe
1
9303029015
For outdoor unit drain piping work
(May not be supplied, depending
on the model)
Drain cap
5
313166024302
2006.05.29
27
0605G3090
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