Friedrich MS24Y3F User manual

CONTENTS
SPECIFICATIONS ................................ 1
OUTLINE AND DIMENSIONS
..................... 2
REFRIGERANT SYSTEM DIAGRAM
.............. 4
ERROR CONTENTS
............................
7
CIRCUIT DIAGRAM
.............................. 5
PCB CIRCUIT DIAGRAM
........................
11
DISASSEMBLY ILLUSTRATION (Indoor Unit)
..... 13
DISASSEMBLY ILLUSTRATION (Outdoor Unit)
.... 20
PARTS LIST (Indoor Unit)
....................... 24
PARTS LIST (Outdoor Unit)
...................... 25
STANDARD ACCESSORIES
..................... 26
SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type (60Hz)
Models
Indoor unit Outdoor unit
MS24Y3F MR24UY3F

SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
POWER SOURCE
FREQUENCY
RUNNING CURRENT (Heat)
INPUT WATTS (Heat)
E.E.R. (Heat)
MOISTURE REMOVAL
AIR CIRCULATION-High
ELECTRICAL DATA
COMPRESSOR
DIMENSIONS
TYPE
Hermetic type, 4 poles, Inverter, Twin Rotary
DISCRIMINATION
REFRIGERANT R410A
POWER SOURCE
DISCRIMINATION
INDOOR UNIT
( Cool / Heat )
HIGH-SPEED
MED-SPEED
LOW-SPEED
DISCRIMINATION
OUTDOOR UNIT
( Cool / Heat ) HIGH- SPEED
INDOOR UNIT HxWxD
7-7/8" x 39-1/8" x 25-7/8" inch
(199 x 990 x 655 mm)
OUTDOOR UNIT
FAN MOTOR
WEIGHT
INDOOR UNIT Gross / Net
HxWxD
Gross / Net
OUTDOOR UNIT
Cool and Heat
TNB220FPBM9
4 lb 3 oz (1,900 g)
MFE-45ROM
850 / 900 r.p.m.
32-3/4" x 35-1/2" x 13" inch
(830 x 900 x 330 mm)
MS24Y3F
MR24UY3F
22,200 / 22,200 BTU/h
230 V / 208 V
10.2 A / 11.3 A
2.33 kW / 2.33 kW
3.05 / 3.05 kW/kW
880 m3/hr
230 V
MFA-24PPT
1,180 / 1,100 r.p.m.
1,000 / 1,000 r.p.m.
900 / 900 r.p.m.
37 kg / 28 kg
70 kg / 64 kg
3.5 l/hr
HEATING CAPACITY
24,200 / 24,200 BTU/h
RUNNING CURRENT (Cool)
9.8 A / 10.9 A
INPUT WATTS (Cool)
2.25 kW / 2.25 kW
E.E.R. (Cool)
2.89 / 2.89 kW/kW
49 ft. (15 m)
66 ft. (20 m)
98 ft. (30 m)
ADDITIONAL REFRIGERANT
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. (40g/m)
FULL CHARGE AMOUNT
REFRIGERANT CHARGE (R410A)
Pipe Length
160Hz
12006.05.29

OUTLINE AND DIMENSIONS
INDOOR UNIT
Unit : inch (mm)
39-1/8" (990)
19-3/4" (500)
4-23/32" (120)
35" (900)
25-7/8" (655)
20-7/8" (530)
7-27/32" (199)
2-3/4" (70)
7-7/8" (200)
6-7/8" (175)
7-7/8" (199)
(rear view)
22006.05.25
3-15/16" ( 100)

Unit : inch (mm)
OUTDOOR UNIT
3"(77)
35-1/2" (900)
32-3/4" (830)
17-3/8" (440)
7/8" (21)
3/8" (9)
15-3/4" (400)
13" (330)
1-1/4"
(31)
1/2"
(12)
7-3/4" (196)
5-3/4" (147)
6-3/4" (170)
3-7/8" (99)
14-5/8" (370)
25-5/8" (650)
Air Flow
32006.05.25

REFRIGERANT SYSTEM DIAGRAM
: COOL
: HEAT
Evaporator
OUTDOOR UNIT
Pressure
Check Valve
Condenser
4-way
Valve
High Pressure
Switch
Accumulator
Muffler
Compressor
Expansion
Valve Refrigerant Pipe
9.52mm (3/8")
Charging Valve
Charging
Valve
Refrigerant Pipe
15.88mm (5/8")
INDOOR UNIT
Strainer
Strainer
42006.05.25

CIRCUIT DIAGRAM
INDOOR UNIT
TERMINAL
STEP MOTOR
( LEFT / RIGHT )
STEP MOTOR
(UP/DOWN)
FAN MOTOR
CAPACITOR
FAN MOTOR
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
FM M
M
1231
23
Use T3.15A-250V Fuse on F101
G
L
N
PURPLE
BLUE
PINK
RED
WHITE
BLACK
BLACK
WHITE
RED
GREEN
GRAY
PURPLE
BLUE
WHITE
YELLOW
ORANGE
RED
BROWN WHITE
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
BLACK BLACK GRAY GRAY
BROWN
RED
ORANGE
YELLOW
WHITE
BLACK
BLACK
WHITE
WHITE RED
CN7 CN8
CN1 CN17
CN13CN5
CN11 CN10 CN4
CN201
GREEN / YELLOW
1
7
6
5
4
3
2
8
1
6
5
4
3
2
1
7
6
5
4
3
2
8
1
7
6
5
4
3
2
8
1
6
5
4
3
21
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
1
2
12
1
2
2
123 123
INDICATOR PCB ASSY
CONTROLLER PCB ASSY
POWER SUPPLY PCB
52005.05.25

OUTDOOR UNIT
ORANGE
YELLOW
WHITE
BLUE
BROWN
RED
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
BLACK
RED
RED
BLACK
BROWN
BLUE
BROWN
BLACK
RED
BROWN
BLACK
BLACK
WHITE
BLACK
BLACK
WHITE WHITE
GREEN
BLACK
WHITE
BLACK
RED
YELLOW
BLUE
YELLOW
ORANGE
RED
BROWN
BLACK
BLACK
WHITE
BROWN
BLACK
BLACK
WHITE
WHITE
RED RED
RED
CN1
CN1
CN34
W9 W8
W200
W11
W10
W17
W16
CN27
CN802
W12
W13
CN407
CN30
CN37
W303
W304
W305
CN21 CN22 CN23 CN26 CN25
1
6
5
4
3
2
1432
1
6
5
4
3
2
1
5
4
3
2
1
3
2
1
2
132
12 12 12 12 12
1
6
5
4
3
2
132
TM102
TM101 W3 W6 W7 W4 W5
GG
2 (N)
13
LN
EARTH EARTH
EXPANSION VALVE COIL
EV
FM FANMOTOR
SOLENOID COIL
4WV
HIGH PRESSURE SWITCH
FUSE
F4 T 5A-250V
FUSE
F2 T 3.15A-250V
EMI FILTER
2T
L1
L2
P
N
+-
TERMINAL
CHOKE COIL
COMPRESSOR
CONNECTOR
EMI FILTER
1T
U
V
W
W
U
V
DISCHARG TEMPERATURE
THERMISTOR
PIPE TEMPERATURE
THERMISTOR
OUTDOOR TEMPERATURE
THERMISTOR
COMPRESSOR TEMPERATURE
THERMISTOR
HEAT SINK TEMPERATURE
THERMISTOR
POWER SUPPLY PCB ASSY
CONTROLLER PCB ASSY
ACTIVE
FILTER
MODULE
62005.05.25

CONTROLLER PCB ASSY
K01AL-050SHSE-C1
INDOOR PCB CIRCUIT DIAGRAM
72006.05.25

POWER SUPPLY PCB ASSY
K04BA-0500HUE-P0
CONTROLLER PCB ASSY
K04AW-0502HUE-C1
INVERTER ASSEMBLY
EZ-005FHUE
OUTDOOR PCB CIRCUIT DIAGRAM
82006.05.25

600/450V x 4
OUTDOOR UNIT
CONTROLLER PCB ASSEMBLY
K04AW-0502HUE-C1
92006.05.25

5V
TM101
TM102
C112
0.015
<YE>
C113
0.015
<YE>
C111
3.3
<LE>
L4
RCH4730-021PF07
C107
3.3
<LE>
TM100
L2
N200500K1D7C
CT1
CT-1B
5V D60
DAN217U
C64
0.1
<F>
R68 22K
<1/10W>
C65
0.1
<F>
VR1
B2K
+
R61 3.74K
<1/10W>
(1%)
C60
220/16V
<PJ>
R60 1.0K
<1/10W>
(1%)
SA100
RA-302M
C106
3.3
<LE>
C104
0.033
<YE>
C105
0.033
<YE>
C101
3.3
<LE>
VA101
470V
<TNR>
VA102
470V
<TNR>
B
B
B
B
B
B
B
BLACK
WHITE
TO INDOOR UNIT
POWER SOURCE
230V
60Hz
EARTH
AC VOLT OUT
W5
W6
BLACK
WHITE
W7
GREEN
W3
W8
BLACK
WHITE
W9
W4
L1
RCH4730-021PF07
CN1
B3B-XASK-1-A
WHITE
CT OUT
1
2
3
POWER SUPPLY PCB ASSEMBLY
K04BA-0500HUE-P0
2006.05.29 10
OUTDOOR UNIT

ERROR CONTENTS
(Indoor unit)
Operation can be checked by lighting and flashing of the display section OPERATION, , and
TIMER lamps.
Perform judgment in accordance with the following.
112006.05.24
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
OPERATION TIMER SWING
(RED) (GREEN) (ORANGE)
Error contents
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
Outdoor unit piping sensor error
Outdoor unit circuit board error
Miswiring between outdoor unit and indoor unit
2 times
2 times
3 times
3 times
Indoor unit fan error 6 times
3 times
Outdoor unit outdoor temperature sensor error 4 times
Outdoor unit discharge temperature sensor error 5 times
5 times
5 times
:Fast flashing :Slow flashing :Off
SWING lamp (Orange)
SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
SWING
MANUALAUTO
SWING
TIMER
OERATION

ERROR CONTENTS
(outdoor unit)
1. Make a TEST RUN in accordance with the in-
stallation instruction sheet for the indoor unit.
2. OUTDOOR UNIT LEDS
Error contents
Communication error
(Indoor unit - Outdoor unit)
Discharg pipe temperature sensor
Outdoor heat exchanger temperature sensor
Outdoor temperature sensor
Compressor temperature sensor
Heat sink temperature sensor
Pressure switch abnormal
IPM error
Compressor rotor position cannot detect
Compressor cannot operate
Outdoor fan abnormal (upper fan)
Outdoor fan abnormal (lower fan)
No error
LED
1 flash
2 flash
3 flash
4 flash
7 flash
8 flash
9 flash
12 flash
13 flash
14 flash
15 flash
16 flash
lighting
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.
SPECIAL INSTALLATION
SETTING
PUMP DOWN (Refrigerant collecting operation)
1. When the product is stopped:
Perform the following procedures to collect the refrigerant
when moving the indoor unit or the outdoor unit.
1
2
3
4
Press the PUMP DOWN switch on the outdoor unit.
(The LED on the outdoor unit circuit board lights.)
The pump down operation (cooling operation) be-
gins right away. After oparation starts, close the
three-way valve (liquid).
After2-3minutes, 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.
*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 after2-3minutes and perform the pump
down operation.
*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.
2. When the product is operating:
1
2
3
4
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.
The pump down operation (cooling operation) be-
gins after three minutes. Close the three-way valve
(liquid) after operation starts.
After2-3minutes, 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.
3-way valve
(Liquid)
3-way valve
(Gas)
122006.02.14
DANGER
This part (Choke coil) generates high voltages.
Never touch this part.
PUMP DOWN SW (SW2)

DISASSEMBLY ASSEMBLY
INDOOR UNIT
132006.05.25
653-2
365-1
365-2
365-2
365-1
870-1
653-2
870-1
509
173
580
508
174
240 743

142006.05.25
INDOOR UNIT
196-1
184-1
470
764
577
127
124
235
124
108
68
578
418
160
439
138
68
187

152006.05.25
983
983
INDOOR UNIT

416
417
385
771
488
472
473
443
8-1
162006.05.25
INDOOR UNIT

172006.05.29
800
652-1
735
146
OPTIONAL PARTS
INDOOR UNIT

182006.06.13
INDOOR UNIT
982

684
558
555
554
520
521
505
505
505
321
320
361
69
69
69
69
502
505
506
500
407
408 503
876-2
876-1
361-2
361-2
361-2
361-3
361-3
361-3
361-2
192006.05.29
INDOOR UNIT